From d7eecb483cc29e929bbc5515b8def830d7fc6ad2 Mon Sep 17 00:00:00 2001
From: Daniel Mack <daniel@caiaq.de>
Date: Thu, 28 Jan 2010 16:13:01 +0800
Subject: [PATCH 001/464] jfs_dmap.[ch]: trivial typo fix: s/heigth/height/g
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: André Goddard Rosa <andre.goddard@gmail.com>
Cc: jfs-discussion@lists.sourceforge.net
---
 fs/jfs/jfs_dmap.c | 16 ++++++++--------
 fs/jfs/jfs_dmap.h |  6 +++---
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index d9b031cf69f56..7e19d2fe00981 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -195,7 +195,7 @@ int dbMount(struct inode *ipbmap)
 	bmp->db_maxag = le32_to_cpu(dbmp_le->dn_maxag);
 	bmp->db_agpref = le32_to_cpu(dbmp_le->dn_agpref);
 	bmp->db_aglevel = le32_to_cpu(dbmp_le->dn_aglevel);
-	bmp->db_agheigth = le32_to_cpu(dbmp_le->dn_agheigth);
+	bmp->db_agheight = le32_to_cpu(dbmp_le->dn_agheight);
 	bmp->db_agwidth = le32_to_cpu(dbmp_le->dn_agwidth);
 	bmp->db_agstart = le32_to_cpu(dbmp_le->dn_agstart);
 	bmp->db_agl2size = le32_to_cpu(dbmp_le->dn_agl2size);
@@ -287,7 +287,7 @@ int dbSync(struct inode *ipbmap)
 	dbmp_le->dn_maxag = cpu_to_le32(bmp->db_maxag);
 	dbmp_le->dn_agpref = cpu_to_le32(bmp->db_agpref);
 	dbmp_le->dn_aglevel = cpu_to_le32(bmp->db_aglevel);
-	dbmp_le->dn_agheigth = cpu_to_le32(bmp->db_agheigth);
+	dbmp_le->dn_agheight = cpu_to_le32(bmp->db_agheight);
 	dbmp_le->dn_agwidth = cpu_to_le32(bmp->db_agwidth);
 	dbmp_le->dn_agstart = cpu_to_le32(bmp->db_agstart);
 	dbmp_le->dn_agl2size = cpu_to_le32(bmp->db_agl2size);
@@ -1440,7 +1440,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
 	 * tree index of this allocation group within the control page.
 	 */
 	agperlev =
-	    (1 << (L2LPERCTL - (bmp->db_agheigth << 1))) / bmp->db_agwidth;
+	    (1 << (L2LPERCTL - (bmp->db_agheight << 1))) / bmp->db_agwidth;
 	ti = bmp->db_agstart + bmp->db_agwidth * (agno & (agperlev - 1));
 
 	/* dmap control page trees fan-out by 4 and a single allocation
@@ -1459,7 +1459,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
 		 * the subtree to find the leftmost leaf that describes this
 		 * free space.
 		 */
-		for (k = bmp->db_agheigth; k > 0; k--) {
+		for (k = bmp->db_agheight; k > 0; k--) {
 			for (n = 0, m = (ti << 2) + 1; n < 4; n++) {
 				if (l2nb <= dcp->stree[m + n]) {
 					ti = m + n;
@@ -3606,7 +3606,7 @@ void dbFinalizeBmap(struct inode *ipbmap)
 	}
 
 	/*
-	 * compute db_aglevel, db_agheigth, db_width, db_agstart:
+	 * compute db_aglevel, db_agheight, db_width, db_agstart:
 	 * an ag is covered in aglevel dmapctl summary tree,
 	 * at agheight level height (from leaf) with agwidth number of nodes
 	 * each, which starts at agstart index node of the smmary tree node
@@ -3615,9 +3615,9 @@ void dbFinalizeBmap(struct inode *ipbmap)
 	bmp->db_aglevel = BMAPSZTOLEV(bmp->db_agsize);
 	l2nl =
 	    bmp->db_agl2size - (L2BPERDMAP + bmp->db_aglevel * L2LPERCTL);
-	bmp->db_agheigth = l2nl >> 1;
-	bmp->db_agwidth = 1 << (l2nl - (bmp->db_agheigth << 1));
-	for (i = 5 - bmp->db_agheigth, bmp->db_agstart = 0, n = 1; i > 0;
+	bmp->db_agheight = l2nl >> 1;
+	bmp->db_agwidth = 1 << (l2nl - (bmp->db_agheight << 1));
+	for (i = 5 - bmp->db_agheight, bmp->db_agstart = 0, n = 1; i > 0;
 	     i--) {
 		bmp->db_agstart += n;
 		n <<= 2;
diff --git a/fs/jfs/jfs_dmap.h b/fs/jfs/jfs_dmap.h
index 1a6eb41569bc4..6dcb906c55d84 100644
--- a/fs/jfs/jfs_dmap.h
+++ b/fs/jfs/jfs_dmap.h
@@ -210,7 +210,7 @@ struct dbmap_disk {
 	__le32 dn_maxag;	/* 4: max active alloc group number	*/
 	__le32 dn_agpref;	/* 4: preferred alloc group (hint)	*/
 	__le32 dn_aglevel;	/* 4: dmapctl level holding the AG	*/
-	__le32 dn_agheigth;	/* 4: height in dmapctl of the AG	*/
+	__le32 dn_agheight;	/* 4: height in dmapctl of the AG	*/
 	__le32 dn_agwidth;	/* 4: width in dmapctl of the AG	*/
 	__le32 dn_agstart;	/* 4: start tree index at AG height	*/
 	__le32 dn_agl2size;	/* 4: l2 num of blks per alloc group	*/
@@ -229,7 +229,7 @@ struct dbmap {
 	int dn_maxag;		/* max active alloc group number	*/
 	int dn_agpref;		/* preferred alloc group (hint)		*/
 	int dn_aglevel;		/* dmapctl level holding the AG		*/
-	int dn_agheigth;	/* height in dmapctl of the AG		*/
+	int dn_agheight;	/* height in dmapctl of the AG		*/
 	int dn_agwidth;		/* width in dmapctl of the AG		*/
 	int dn_agstart;		/* start tree index at AG height	*/
 	int dn_agl2size;	/* l2 num of blks per alloc group	*/
@@ -255,7 +255,7 @@ struct bmap {
 #define	db_agsize	db_bmap.dn_agsize
 #define	db_agl2size	db_bmap.dn_agl2size
 #define	db_agwidth	db_bmap.dn_agwidth
-#define	db_agheigth	db_bmap.dn_agheigth
+#define	db_agheight	db_bmap.dn_agheight
 #define	db_agstart	db_bmap.dn_agstart
 #define	db_numag	db_bmap.dn_numag
 #define	db_maxlevel	db_bmap.dn_maxlevel

From 339d3261aa3eb0e12f68ef868e042c1ca03628f7 Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Sat, 6 Feb 2010 09:42:39 +0100
Subject: [PATCH 002/464] x86/amd-iommu: Remove double NULL check in
 check_device

dev was tested just above, so drop the second test.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/amd_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index adb0ba0257029..2c4a5012038e2 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -118,7 +118,7 @@ static bool check_device(struct device *dev)
 		return false;
 
 	/* No device or no PCI device */
-	if (!dev || dev->bus != &pci_bus_type)
+	if (dev->bus != &pci_bus_type)
 		return false;
 
 	devid = get_device_id(dev);

From 5d214fe6e808a8caa9cb6f610c0190d3f50ac570 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Mon, 8 Feb 2010 14:44:49 +0100
Subject: [PATCH 003/464] x86/amd-iommu: Protect IOMMU-API map/unmap path

This patch introduces a mutex to lock page table updates in
the IOMMU-API path. We can't use the spin_lock here because
this patch might sleep.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/include/asm/amd_iommu_types.h | 2 ++
 arch/x86/kernel/amd_iommu.c            | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index ba19ad4c47d03..5e46e78f3b1b3 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -21,6 +21,7 @@
 #define _ASM_X86_AMD_IOMMU_TYPES_H
 
 #include <linux/types.h>
+#include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
 
@@ -237,6 +238,7 @@ struct protection_domain {
 	struct list_head list;  /* for list of all protection domains */
 	struct list_head dev_list; /* List of all devices in this domain */
 	spinlock_t lock;	/* mostly used to lock the page table*/
+	struct mutex api_lock;	/* protect page tables in the iommu-api path */
 	u16 id;			/* the domain id written to the device table */
 	int mode;		/* paging mode (0-6 levels) */
 	u64 *pt_root;		/* page table root pointer */
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 2c4a5012038e2..b97f2f1c449a2 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2327,6 +2327,7 @@ static struct protection_domain *protection_domain_alloc(void)
 		return NULL;
 
 	spin_lock_init(&domain->lock);
+	mutex_init(&domain->api_lock);
 	domain->id = domain_id_alloc();
 	if (!domain->id)
 		goto out_err;
@@ -2456,6 +2457,8 @@ static int amd_iommu_map_range(struct iommu_domain *dom,
 	iova  &= PAGE_MASK;
 	paddr &= PAGE_MASK;
 
+	mutex_lock(&domain->api_lock);
+
 	for (i = 0; i < npages; ++i) {
 		ret = iommu_map_page(domain, iova, paddr, prot, PM_MAP_4k);
 		if (ret)
@@ -2465,6 +2468,8 @@ static int amd_iommu_map_range(struct iommu_domain *dom,
 		paddr += PAGE_SIZE;
 	}
 
+	mutex_unlock(&domain->api_lock);
+
 	return 0;
 }
 
@@ -2477,12 +2482,16 @@ static void amd_iommu_unmap_range(struct iommu_domain *dom,
 
 	iova  &= PAGE_MASK;
 
+	mutex_lock(&domain->api_lock);
+
 	for (i = 0; i < npages; ++i) {
 		iommu_unmap_page(domain, iova, PM_MAP_4k);
 		iova  += PAGE_SIZE;
 	}
 
 	iommu_flush_tlb_pde(domain);
+
+	mutex_unlock(&domain->api_lock);
 }
 
 static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom,

From 04e856c072b84042bb56c487c2868638bb3f78db Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@sous-sol.org>
Date: Wed, 17 Feb 2010 08:51:20 -0800
Subject: [PATCH 004/464] x86/amd-iommu: Pt mode fix for domain_destroy

After a guest is shutdown, assigned devices are not properly
returned to the pt domain.  This can leave the device using
stale cached IOMMU data, and result in a non-functional
device after it's re-bound to the host driver.  For example,
I see this upon rebinding:

 AMD-Vi: Event logged [IO_PAGE_FAULT device=02:00.0 domain=0x0000 address=0x000000007e2a8000 flags=0x0050]
 AMD-Vi: Event logged [IO_PAGE_FAULT device=02:00.0 domain=0x0000 address=0x000000007e2a8040 flags=0x0050]
 AMD-Vi: Event logged [IO_PAGE_FAULT device=02:00.0 domain=0x0000 address=0x000000007e2a8080 flags=0x0050]
 AMD-Vi: Event logged [IO_PAGE_FAULT device=02:00.0 domain=0x0000 address=0x000000007e2a80c0 flags=0x0050]
 0000:02:00.0: eth2: Detected Hardware Unit Hang:
 ...

The amd_iommu_destroy_domain() function calls do_detach()
which doesn't reattach the pt domain to the device.
Use __detach_device() instead.

Cc: stable@kernel.org
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/amd_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index b97f2f1c449a2..0c0425436a732 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2298,7 +2298,7 @@ static void cleanup_domain(struct protection_domain *domain)
 	list_for_each_entry_safe(dev_data, next, &domain->dev_list, list) {
 		struct device *dev = dev_data->dev;
 
-		do_detach(dev);
+		__detach_device(dev);
 		atomic_set(&dev_data->bind, 0);
 	}
 

From 3551a708f35fc712af43aeb7f541512c5cfc4936 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Mon, 1 Mar 2010 13:52:19 +0100
Subject: [PATCH 005/464] x86/amd-iommu: Report errors in acpi parsing
 functions upstream

Since acpi_table_parse ignores the return values of the
parsing function this patch introduces a workaround and
reports these errors upstream via a global variable.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/amd_iommu_init.c | 38 +++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 9dc91b4314703..feaf47184900b 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -138,9 +138,9 @@ int amd_iommus_present;
 bool amd_iommu_np_cache __read_mostly;
 
 /*
- * Set to true if ACPI table parsing and hardware intialization went properly
+ * The ACPI table parsing functions set this variable on an error
  */
-static bool amd_iommu_initialized;
+static int __initdata amd_iommu_init_err;
 
 /*
  * List of protection domains - used during resume
@@ -391,9 +391,11 @@ static int __init find_last_devid_acpi(struct acpi_table_header *table)
 	 */
 	for (i = 0; i < table->length; ++i)
 		checksum += p[i];
-	if (checksum != 0)
+	if (checksum != 0) {
 		/* ACPI table corrupt */
-		return -ENODEV;
+		amd_iommu_init_err = -ENODEV;
+		return 0;
+	}
 
 	p += IVRS_HEADER_LENGTH;
 
@@ -920,11 +922,16 @@ static int __init init_iommu_all(struct acpi_table_header *table)
 				    h->mmio_phys);
 
 			iommu = kzalloc(sizeof(struct amd_iommu), GFP_KERNEL);
-			if (iommu == NULL)
-				return -ENOMEM;
+			if (iommu == NULL) {
+				amd_iommu_init_err = -ENOMEM;
+				return 0;
+			}
+
 			ret = init_iommu_one(iommu, h);
-			if (ret)
-				return ret;
+			if (ret) {
+				amd_iommu_init_err = ret;
+				return 0;
+			}
 			break;
 		default:
 			break;
@@ -934,8 +941,6 @@ static int __init init_iommu_all(struct acpi_table_header *table)
 	}
 	WARN_ON(p != end);
 
-	amd_iommu_initialized = true;
-
 	return 0;
 }
 
@@ -1211,6 +1216,10 @@ static int __init amd_iommu_init(void)
 	if (acpi_table_parse("IVRS", find_last_devid_acpi) != 0)
 		return -ENODEV;
 
+	ret = amd_iommu_init_err;
+	if (ret)
+		goto out;
+
 	dev_table_size     = tbl_size(DEV_TABLE_ENTRY_SIZE);
 	alias_table_size   = tbl_size(ALIAS_TABLE_ENTRY_SIZE);
 	rlookup_table_size = tbl_size(RLOOKUP_TABLE_ENTRY_SIZE);
@@ -1270,12 +1279,19 @@ static int __init amd_iommu_init(void)
 	if (acpi_table_parse("IVRS", init_iommu_all) != 0)
 		goto free;
 
-	if (!amd_iommu_initialized)
+	if (amd_iommu_init_err) {
+		ret = amd_iommu_init_err;
 		goto free;
+	}
 
 	if (acpi_table_parse("IVRS", init_memory_definitions) != 0)
 		goto free;
 
+	if (amd_iommu_init_err) {
+		ret = amd_iommu_init_err;
+		goto free;
+	}
+
 	ret = sysdev_class_register(&amd_iommu_sysdev_class);
 	if (ret)
 		goto free;

From 8b408fe4f853dcfa18d133aa4cf1d7546b4c3870 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Mon, 8 Mar 2010 14:20:07 +0100
Subject: [PATCH 006/464] x86/amd-iommu: Use helper function to destroy domain

In the amd_iommu_domain_destroy the protection_domain_free
function is partly reimplemented. The 'partly' is the bug
here because the domain is not deleted from the domain list.
This results in use-after-free errors and data-corruption.
Fix it by just using protection_domain_free instead.

Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/amd_iommu.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 0c0425436a732..b06f29e275e91 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2380,9 +2380,7 @@ static void amd_iommu_domain_destroy(struct iommu_domain *dom)
 
 	free_pagetable(domain);
 
-	domain_id_free(domain->id);
-
-	kfree(domain);
+	protection_domain_free(domain);
 
 	dom->priv = NULL;
 }

From e88d556dc5f0ef437e3538277a1dd33e5038be77 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Sat, 27 Feb 2010 14:13:43 -0600
Subject: [PATCH 007/464] OMAP3: serial: Check for zero-based physical addr

This is for protecting a wrong mapping attempt of a zero-based
physical address.

The result is that, no serial port will be attempted to be mapped.

Also add an additional protection for NULL clocks before attempting
to enable them (if above condition applies)

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/mach-omap2/serial.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index da77930480e9a..ef91fc0390b4b 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -664,6 +664,12 @@ void __init omap_serial_early_init(void)
 		struct device *dev = &pdev->dev;
 		struct plat_serial8250_port *p = dev->platform_data;
 
+		/* Don't map zero-based physical address */
+		if (p->mapbase == 0) {
+			printk(KERN_WARNING "omap serial: No physical address"
+			       " for uart#%d, so skipping early_init...\n", i);
+			continue;
+		}
 		/*
 		 * Module 4KB + L4 interconnect 4KB
 		 * Static mapping, never released
@@ -727,6 +733,13 @@ void __init omap_serial_init_port(int port)
 	pdev = &uart->pdev;
 	dev = &pdev->dev;
 
+	/* Don't proceed if there's no clocks available */
+	if (unlikely(!uart->ick || !uart->fck)) {
+		WARN(1, "%s: can't init uart%d, no clocks available\n",
+		     kobject_name(&dev->kobj), port);
+		return;
+	}
+
 	omap_uart_enable_clocks(uart);
 
 	omap_uart_reset(uart);

From 10c805eb4f89d44fe4e457d727b59af15c4a4a36 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Tue, 9 Mar 2010 13:22:14 -0600
Subject: [PATCH 008/464] OMAP3: serial: Use dev_* macros instead of printk

As we have a struct device populated at the time we are
printing the errors, using dev_* macros makes more sense,
as could give a better idea where the error/warning came from.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/mach-omap2/serial.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index ef91fc0390b4b..a55e6aeb648ee 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -550,7 +550,7 @@ static ssize_t sleep_timeout_store(struct device *dev,
 	unsigned int value;
 
 	if (sscanf(buf, "%u", &value) != 1) {
-		printk(KERN_ERR "sleep_timeout_store: Invalid value\n");
+		dev_err(dev, "sleep_timeout_store: Invalid value\n");
 		return -EINVAL;
 	}
 
@@ -666,8 +666,8 @@ void __init omap_serial_early_init(void)
 
 		/* Don't map zero-based physical address */
 		if (p->mapbase == 0) {
-			printk(KERN_WARNING "omap serial: No physical address"
-			       " for uart#%d, so skipping early_init...\n", i);
+			dev_warn(dev, "no physical address for uart#%d,"
+				 " so skipping early_init...\n", i);
 			continue;
 		}
 		/*
@@ -676,21 +676,21 @@ void __init omap_serial_early_init(void)
 		 */
 		p->membase = ioremap(p->mapbase, SZ_8K);
 		if (!p->membase) {
-			printk(KERN_ERR "ioremap failed for uart%i\n", i + 1);
+			dev_err(dev, "ioremap failed for uart%i\n", i + 1);
 			continue;
 		}
 
 		sprintf(name, "uart%d_ick", i + 1);
 		uart->ick = clk_get(NULL, name);
 		if (IS_ERR(uart->ick)) {
-			printk(KERN_ERR "Could not get uart%d_ick\n", i + 1);
+			dev_err(dev, "Could not get uart%d_ick\n", i + 1);
 			uart->ick = NULL;
 		}
 
 		sprintf(name, "uart%d_fck", i+1);
 		uart->fck = clk_get(NULL, name);
 		if (IS_ERR(uart->fck)) {
-			printk(KERN_ERR "Could not get uart%d_fck\n", i + 1);
+			dev_err(dev, "Could not get uart%d_fck\n", i + 1);
 			uart->fck = NULL;
 		}
 

From 4b1bbd3fd9384ad6ca62903172ccb6a8729dd897 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Fri, 26 Feb 2010 19:58:47 -0600
Subject: [PATCH 009/464] omap2/3/4: serial: Remove condition for getting
 uart4_phys

This check is invalid, since we haven't filled the
omap_revision var at this point.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/mach-omap2/serial.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index a55e6aeb648ee..3771254dfa811 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -115,7 +115,6 @@ static struct plat_serial8250_port serial_platform_data2[] = {
 	}
 };
 
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
 static struct plat_serial8250_port serial_platform_data3[] = {
 	{
 		.irq		= 70,
@@ -128,23 +127,12 @@ static struct plat_serial8250_port serial_platform_data3[] = {
 	}
 };
 
-static inline void omap2_set_globals_uart4(struct omap_globals *omap2_globals)
-{
-	serial_platform_data3[0].mapbase = omap2_globals->uart4_phys;
-}
-#else
-static inline void omap2_set_globals_uart4(struct omap_globals *omap2_globals)
-{
-}
-#endif
-
 void __init omap2_set_globals_uart(struct omap_globals *omap2_globals)
 {
 	serial_platform_data0[0].mapbase = omap2_globals->uart1_phys;
 	serial_platform_data1[0].mapbase = omap2_globals->uart2_phys;
 	serial_platform_data2[0].mapbase = omap2_globals->uart3_phys;
-	if (cpu_is_omap3630() || cpu_is_omap44xx())
-		omap2_set_globals_uart4(omap2_globals);
+	serial_platform_data3[0].mapbase = omap2_globals->uart4_phys;
 }
 
 static inline unsigned int __serial_read_reg(struct uart_port *up,

From 2d7f66104cc9ef508c382c8d6cb1ce6123383350 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Mon, 1 Mar 2010 11:48:26 -0600
Subject: [PATCH 010/464] omap3: zoom2/3 / 3630sdp: Don't init always all uarts

This is useless, since in Zoom2/3 boards, the ports aren't even
physically accessible.

They must be explicitly initted in the board-zoom2.c, board-zoom3.c
and board-3630sdp.c files instead.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/mach-omap2/board-zoom-peripherals.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
index ca95d8d64136d..6b3984964cc59 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -280,7 +280,6 @@ static void enable_board_wakeup_source(void)
 void __init zoom_peripherals_init(void)
 {
 	omap_i2c_init();
-	omap_serial_init();
 	usb_musb_init(&musb_board_data);
 	enable_board_wakeup_source();
 }

From 9e265aa7ac493aa0a3de80aa3092d8677b3e8546 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Mon, 1 Mar 2010 11:52:36 -0600
Subject: [PATCH 011/464] omap3: 3630sdp: Explicitly enable all UARTs

All UARTs seem physically reachable, so, enable them all.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/mach-omap2/board-3630sdp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c
index a0a2a113465cc..504d2bd222fe3 100644
--- a/arch/arm/mach-omap2/board-3630sdp.c
+++ b/arch/arm/mach-omap2/board-3630sdp.c
@@ -96,6 +96,7 @@ static struct omap_board_mux board_mux[] __initdata = {
 static void __init omap_sdp_init(void)
 {
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBP);
+	omap_serial_init();
 	zoom_peripherals_init();
 	board_smc91x_init();
 	enable_board_wakeup_source();

From fcbcea93abbe361e14dd458d0a5a3e9dadaa5ba9 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Mon, 1 Mar 2010 12:17:15 -0600
Subject: [PATCH 012/464] omap3: zoom 2/3: Change debugboard serial port id

This is now changed to PLAT8250_DEV_PLATFORM (= 0), because
it's the only port that's going to be initialized in
Zoom 2/3 boards.

So, it doesn't make sense to keep the hardcoded 3 value anymore.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/mach-omap2/board-zoom-debugboard.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c
index bb4018b606429..e15d2e87cfc17 100644
--- a/arch/arm/mach-omap2/board-zoom-debugboard.c
+++ b/arch/arm/mach-omap2/board-zoom-debugboard.c
@@ -96,7 +96,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 
 static struct platform_device zoom_debugboard_serial_device = {
 	.name			= "serial8250",
-	.id			= 3,
+	.id			= PLAT8250_DEV_PLATFORM,
 	.dev			= {
 		.platform_data	= serial_platform_data,
 	},

From e6e8ea63f5d745e5a3030eec1964d0429b93107d Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Mon, 1 Mar 2010 14:26:45 -0600
Subject: [PATCH 013/464] omap3: zoom2/3: Register only 1 8250 port

There's no more serial ports available, so, doesn't make sense
to create 4 device nodes.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/configs/omap_zoom2_defconfig | 2 +-
 arch/arm/configs/omap_zoom3_defconfig | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/configs/omap_zoom2_defconfig b/arch/arm/configs/omap_zoom2_defconfig
index f5c6e11cf1899..881faea03d794 100644
--- a/arch/arm/configs/omap_zoom2_defconfig
+++ b/arch/arm/configs/omap_zoom2_defconfig
@@ -661,7 +661,7 @@ CONFIG_DEVKMEM=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=32
-CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
diff --git a/arch/arm/configs/omap_zoom3_defconfig b/arch/arm/configs/omap_zoom3_defconfig
index ea9a5012d332b..5e55b550a4085 100644
--- a/arch/arm/configs/omap_zoom3_defconfig
+++ b/arch/arm/configs/omap_zoom3_defconfig
@@ -680,7 +680,7 @@ CONFIG_DEVKMEM=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=32
-CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y

From 88fcf710c13bd41f2b98c5411e4f21ab98da4fb4 Mon Sep 17 00:00:00 2001
From: Yong Wang <yong.y.wang@linux.intel.com>
Date: Fri, 19 Mar 2010 23:02:16 -0700
Subject: [PATCH 014/464] Input: sparse-keymap - free the right keymap on error

'map' is allocated in sparse_keymap_setup() and it it the one that should
be freed on error instead of 'keymap'.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/sparse-keymap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index e6bde55e5203c..f64e004935a9f 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -163,7 +163,7 @@ int sparse_keymap_setup(struct input_dev *dev,
 	return 0;
 
  err_out:
-	kfree(keymap);
+	kfree(map);
 	return error;
 
 }

From d90e6f6aad0ffdc674bc3a05c85c40dcc18e604c Mon Sep 17 00:00:00 2001
From: Henrik Rydberg <rydberg@euromail.se>
Date: Sat, 20 Mar 2010 00:06:40 -0700
Subject: [PATCH 015/464] Input: bcm5974 - retract efi-broken suspend_resume

With the recent system-wide improvements on suspend/resume and EFI
booting the suspend_resume method of the bcm5974 has broken. When
waking up from the S3 state on the MacBookAir, the trackpad is found
in a yet unknown state, unable to switch to the proper multitouch
mode. The result is a frozen touchpad, and a flood of errors of the
kind

	bcm5974: bad trackpad package, length: 8.

This patch retracts the reset_resume method altogether, falling back
on the generic unbind/rebind functionality of the usb layer until
further investigations can be made as how to reset the device when
booting from efi.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/mouse/bcm5974.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 4f8fe0886b2a0..b89879bd860f6 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -803,7 +803,6 @@ static struct usb_driver bcm5974_driver = {
 	.disconnect		= bcm5974_disconnect,
 	.suspend		= bcm5974_suspend,
 	.resume			= bcm5974_resume,
-	.reset_resume		= bcm5974_resume,
 	.id_table		= bcm5974_table,
 	.supports_autosuspend	= 1,
 };

From 97065e033ec5fd824d0133ecd0c614fe1e5c20bd Mon Sep 17 00:00:00 2001
From: Henrik Rydberg <rydberg@euromail.se>
Date: Sun, 21 Mar 2010 22:31:26 -0700
Subject: [PATCH 016/464] Input: clarify the no-finger event in multitouch
 protocol

The current documentation does not explicitly specify how to report
zero fingers, leaving a potential problem in the driver implementations
and giving no parsing directive to userland. This patch defines two
equally valid ways.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 Documentation/input/multi-touch-protocol.txt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt
index 8490480ce4327..eacb226066649 100644
--- a/Documentation/input/multi-touch-protocol.txt
+++ b/Documentation/input/multi-touch-protocol.txt
@@ -68,6 +68,22 @@ like:
    SYN_MT_REPORT
    SYN_REPORT
 
+Here is the sequence after lifting one of the fingers:
+
+   ABS_MT_POSITION_X
+   ABS_MT_POSITION_Y
+   SYN_MT_REPORT
+   SYN_REPORT
+
+And here is the sequence after lifting the remaining finger:
+
+   SYN_MT_REPORT
+   SYN_REPORT
+
+If the driver reports one of BTN_TOUCH or ABS_PRESSURE in addition to the
+ABS_MT events, the last SYN_MT_REPORT event may be omitted. Otherwise, the
+last SYN_REPORT will be dropped by the input core, resulting in no
+zero-finger event reaching userland.
 
 Event Semantics
 ---------------

From 13bad37b04c779d98983307a27f97e9caa36f9b1 Mon Sep 17 00:00:00 2001
From: Henrik Rydberg <rydberg@euromail.se>
Date: Sun, 21 Mar 2010 22:31:26 -0700
Subject: [PATCH 017/464] Input: update the status of the Multitouch X driver
 project

The Multitouch X driver project has moved to alpha status.
This patch updates the documentation accordingly.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 Documentation/input/multi-touch-protocol.txt | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt
index eacb226066649..c0fc1c75fd886 100644
--- a/Documentation/input/multi-touch-protocol.txt
+++ b/Documentation/input/multi-touch-protocol.txt
@@ -233,11 +233,6 @@ where examples can be found.
 difference between the contact position and the approaching tool position
 could be used to derive tilt.
 [2] The list can of course be extended.
-[3] The multi-touch X driver is currently in the prototyping stage. At the
-time of writing (April 2009), the MT protocol is not yet merged, and the
-prototype implements finger matching, basic mouse support and two-finger
-scrolling. The project aims at improving the quality of current multi-touch
-functionality available in the Synaptics X driver, and in addition
-implement more advanced gestures.
+[3] Multitouch X driver project: http://bitmath.org/code/multitouch/.
 [4] See the section on event computation.
 [5] See the section on finger tracking.

From 2e2e3b96d98d5c17e9c09bc6088df3e182a71814 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Sun, 21 Mar 2010 22:56:15 -0700
Subject: [PATCH 018/464] Input: sparse-keymap - implement safer freeing of the
 keymap

Allow calling sparse_keymap_free() before unregistering input device
whithout risk of racing with EVIOCGETKEYCODE and EVIOCSETKEYCODE.
This makes life of drivers writers easier.

Acked-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/input.c         |  9 ++++++-
 drivers/input/sparse-keymap.c | 50 ++++++++++++++++++++++-------------
 2 files changed, 40 insertions(+), 19 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index e2aad0a51826b..be18fa99fa243 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -659,7 +659,14 @@ static int input_default_setkeycode(struct input_dev *dev,
 int input_get_keycode(struct input_dev *dev,
 		      unsigned int scancode, unsigned int *keycode)
 {
-	return dev->getkeycode(dev, scancode, keycode);
+	unsigned long flags;
+	int retval;
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	retval = dev->getkeycode(dev, scancode, keycode);
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	return retval;
 }
 EXPORT_SYMBOL(input_get_keycode);
 
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index f64e004935a9f..2434ac5d43fe5 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -67,12 +67,14 @@ static int sparse_keymap_getkeycode(struct input_dev *dev,
 				    unsigned int scancode,
 				    unsigned int *keycode)
 {
-	const struct key_entry *key =
-			sparse_keymap_entry_from_scancode(dev, scancode);
+	const struct key_entry *key;
 
-	if (key && key->type == KE_KEY) {
-		*keycode = key->keycode;
-		return 0;
+	if (dev->keycode) {
+		key = sparse_keymap_entry_from_scancode(dev, scancode);
+		if (key && key->type == KE_KEY) {
+			*keycode = key->keycode;
+			return 0;
+		}
 	}
 
 	return -EINVAL;
@@ -85,17 +87,16 @@ static int sparse_keymap_setkeycode(struct input_dev *dev,
 	struct key_entry *key;
 	int old_keycode;
 
-	if (keycode < 0 || keycode > KEY_MAX)
-		return -EINVAL;
-
-	key = sparse_keymap_entry_from_scancode(dev, scancode);
-	if (key && key->type == KE_KEY) {
-		old_keycode = key->keycode;
-		key->keycode = keycode;
-		set_bit(keycode, dev->keybit);
-		if (!sparse_keymap_entry_from_keycode(dev, old_keycode))
-			clear_bit(old_keycode, dev->keybit);
-		return 0;
+	if (dev->keycode) {
+		key = sparse_keymap_entry_from_scancode(dev, scancode);
+		if (key && key->type == KE_KEY) {
+			old_keycode = key->keycode;
+			key->keycode = keycode;
+			set_bit(keycode, dev->keybit);
+			if (!sparse_keymap_entry_from_keycode(dev, old_keycode))
+				clear_bit(old_keycode, dev->keybit);
+			return 0;
+		}
 	}
 
 	return -EINVAL;
@@ -175,14 +176,27 @@ EXPORT_SYMBOL(sparse_keymap_setup);
  *
  * This function is used to free memory allocated by sparse keymap
  * in an input device that was set up by sparse_keymap_setup().
+ * NOTE: It is safe to cal this function while input device is
+ * still registered (however the drivers should care not to try to
+ * use freed keymap and thus have to shut off interrups/polling
+ * before freeing the keymap).
  */
 void sparse_keymap_free(struct input_dev *dev)
 {
+	unsigned long flags;
+
+	/*
+	 * Take event lock to prevent racing with input_get_keycode()
+	 * and input_set_keycode() if we are called while input device
+	 * is still registered.
+	 */
+	spin_lock_irqsave(&dev->event_lock, flags);
+
 	kfree(dev->keycode);
 	dev->keycode = NULL;
 	dev->keycodemax = 0;
-	dev->getkeycode = NULL;
-	dev->setkeycode = NULL;
+
+	spin_unlock_irqrestore(&dev->event_lock, flags);
 }
 EXPORT_SYMBOL(sparse_keymap_free);
 

From 157f1071354db1aed885816094888e0e257c9d0a Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Thu, 11 Feb 2010 07:10:38 -0600
Subject: [PATCH 019/464] eCryptfs: Fix metadata in xattr feature regression

Fixes regression in 8faece5f906725c10e7a1f6caf84452abadbdc7b

When using the ecryptfs_xattr_metadata mount option, eCryptfs stores the
metadata (normally stored at the front of the file) in the user.ecryptfs
xattr.  This causes ecryptfs_crypt_stat.num_header_bytes_at_front to be
0, since there is no header data at the front of the file.  This results
in too much memory being requested and ENOMEM being returned from
ecryptfs_write_metadata().

This patch fixes the problem by using the num_header_bytes_at_front
variable for specifying the max size of the metadata, despite whether it
is stored in the header or xattr.

Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/crypto.c          |  7 ++++---
 fs/ecryptfs/ecryptfs_kernel.h |  8 ++++++++
 fs/ecryptfs/inode.c           |  2 +-
 fs/ecryptfs/mmap.c            | 19 +++++--------------
 4 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 7cb0a59f4b9d2..c907f6f493511 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -381,8 +381,8 @@ static int encrypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
 static void ecryptfs_lower_offset_for_extent(loff_t *offset, loff_t extent_num,
 					     struct ecryptfs_crypt_stat *crypt_stat)
 {
-	(*offset) = (crypt_stat->num_header_bytes_at_front
-		     + (crypt_stat->extent_size * extent_num));
+	(*offset) = ecryptfs_lower_header_size(crypt_stat)
+		    + (crypt_stat->extent_size * extent_num);
 }
 
 /**
@@ -834,7 +834,8 @@ void ecryptfs_set_default_sizes(struct ecryptfs_crypt_stat *crypt_stat)
 	set_extent_mask_and_shift(crypt_stat);
 	crypt_stat->iv_bytes = ECRYPTFS_DEFAULT_IV_BYTES;
 	if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
-		crypt_stat->num_header_bytes_at_front = 0;
+		crypt_stat->num_header_bytes_at_front =
+					ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
 	else {
 		if (PAGE_CACHE_SIZE <= ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)
 			crypt_stat->num_header_bytes_at_front =
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 542f625312f30..8456f70606ade 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -464,6 +464,14 @@ struct ecryptfs_daemon {
 
 extern struct mutex ecryptfs_daemon_hash_mux;
 
+static inline size_t
+ecryptfs_lower_header_size(struct ecryptfs_crypt_stat *crypt_stat)
+{
+	if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
+		return 0;
+	return crypt_stat->num_header_bytes_at_front;
+}
+
 static inline struct ecryptfs_file_info *
 ecryptfs_file_to_private(struct file *file)
 {
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 4a430ab4115c0..1a739531b0dde 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -768,7 +768,7 @@ upper_size_to_lower_size(struct ecryptfs_crypt_stat *crypt_stat,
 {
 	loff_t lower_size;
 
-	lower_size = crypt_stat->num_header_bytes_at_front;
+	lower_size = ecryptfs_lower_header_size(crypt_stat);
 	if (upper_size != 0) {
 		loff_t num_extents;
 
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index df4ce99d0597b..5a30e01547f1e 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -97,19 +97,6 @@ static int ecryptfs_writepage(struct page *page, struct writeback_control *wbc)
  *                        (big-endian)
  *     Octet  26:         Begin RFC 2440 authentication token packet set
  */
-static void set_header_info(char *page_virt,
-			    struct ecryptfs_crypt_stat *crypt_stat)
-{
-	size_t written;
-	size_t save_num_header_bytes_at_front =
-		crypt_stat->num_header_bytes_at_front;
-
-	crypt_stat->num_header_bytes_at_front =
-		ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
-	ecryptfs_write_header_metadata(page_virt + 20, crypt_stat, &written);
-	crypt_stat->num_header_bytes_at_front =
-		save_num_header_bytes_at_front;
-}
 
 /**
  * ecryptfs_copy_up_encrypted_with_header
@@ -146,9 +133,13 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
 			memset(page_virt, 0, PAGE_CACHE_SIZE);
 			/* TODO: Support more than one header extent */
 			if (view_extent_num == 0) {
+				size_t written;
+
 				rc = ecryptfs_read_xattr_region(
 					page_virt, page->mapping->host);
-				set_header_info(page_virt, crypt_stat);
+				ecryptfs_write_header_metadata(page_virt + 20,
+							       crypt_stat,
+							       &written);
 			}
 			kunmap_atomic(page_virt, KM_USER0);
 			flush_dcache_page(page);

From fa3ef1cb4e6e9958a9bfaa977c107c515907f102 Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Thu, 11 Feb 2010 05:09:14 -0600
Subject: [PATCH 020/464] eCryptfs: Rename
 ecryptfs_crypt_stat.num_header_bytes_at_front

This patch renames the num_header_bytes_at_front variable to
metadata_size since it now contains the max size of the metadata.

Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/crypto.c          | 24 ++++++++++--------------
 fs/ecryptfs/ecryptfs_kernel.h |  4 ++--
 fs/ecryptfs/inode.c           |  2 +-
 fs/ecryptfs/mmap.c            |  5 ++---
 4 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index c907f6f493511..391f558eb4d08 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -834,14 +834,13 @@ void ecryptfs_set_default_sizes(struct ecryptfs_crypt_stat *crypt_stat)
 	set_extent_mask_and_shift(crypt_stat);
 	crypt_stat->iv_bytes = ECRYPTFS_DEFAULT_IV_BYTES;
 	if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
-		crypt_stat->num_header_bytes_at_front =
-					ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
+		crypt_stat->metadata_size = ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
 	else {
 		if (PAGE_CACHE_SIZE <= ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)
-			crypt_stat->num_header_bytes_at_front =
+			crypt_stat->metadata_size =
 				ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
 		else
-			crypt_stat->num_header_bytes_at_front =	PAGE_CACHE_SIZE;
+			crypt_stat->metadata_size = PAGE_CACHE_SIZE;
 	}
 }
 
@@ -1238,8 +1237,7 @@ ecryptfs_write_header_metadata(char *virt,
 
 	header_extent_size = (u32)crypt_stat->extent_size;
 	num_header_extents_at_front =
-		(u16)(crypt_stat->num_header_bytes_at_front
-		      / crypt_stat->extent_size);
+		(u16)(crypt_stat->metadata_size / crypt_stat->extent_size);
 	put_unaligned_be32(header_extent_size, virt);
 	virt += 4;
 	put_unaligned_be16(num_header_extents_at_front, virt);
@@ -1382,7 +1380,7 @@ int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry)
 		rc = -EINVAL;
 		goto out;
 	}
-	virt_len = crypt_stat->num_header_bytes_at_front;
+	virt_len = crypt_stat->metadata_size;
 	order = get_order(virt_len);
 	/* Released in this function */
 	virt = (char *)ecryptfs_get_zeroed_pages(GFP_KERNEL, order);
@@ -1428,16 +1426,15 @@ static int parse_header_metadata(struct ecryptfs_crypt_stat *crypt_stat,
 	header_extent_size = get_unaligned_be32(virt);
 	virt += sizeof(__be32);
 	num_header_extents_at_front = get_unaligned_be16(virt);
-	crypt_stat->num_header_bytes_at_front =
-		(((size_t)num_header_extents_at_front
-		  * (size_t)header_extent_size));
+	crypt_stat->metadata_size = (((size_t)num_header_extents_at_front
+				     * (size_t)header_extent_size));
 	(*bytes_read) = (sizeof(__be32) + sizeof(__be16));
 	if ((validate_header_size == ECRYPTFS_VALIDATE_HEADER_SIZE)
-	    && (crypt_stat->num_header_bytes_at_front
+	    && (crypt_stat->metadata_size
 		< ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)) {
 		rc = -EINVAL;
 		printk(KERN_WARNING "Invalid header size: [%zd]\n",
-		       crypt_stat->num_header_bytes_at_front);
+		       crypt_stat->metadata_size);
 	}
 	return rc;
 }
@@ -1452,8 +1449,7 @@ static int parse_header_metadata(struct ecryptfs_crypt_stat *crypt_stat,
  */
 static void set_default_header_data(struct ecryptfs_crypt_stat *crypt_stat)
 {
-	crypt_stat->num_header_bytes_at_front =
-		ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
+	crypt_stat->metadata_size = ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
 }
 
 /**
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 8456f70606ade..d031efd7666b8 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -273,7 +273,7 @@ struct ecryptfs_crypt_stat {
 	u32 flags;
 	unsigned int file_version;
 	size_t iv_bytes;
-	size_t num_header_bytes_at_front;
+	size_t metadata_size;
 	size_t extent_size; /* Data extent size; default is 4096 */
 	size_t key_size;
 	size_t extent_shift;
@@ -469,7 +469,7 @@ ecryptfs_lower_header_size(struct ecryptfs_crypt_stat *crypt_stat)
 {
 	if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
 		return 0;
-	return crypt_stat->num_header_bytes_at_front;
+	return crypt_stat->metadata_size;
 }
 
 static inline struct ecryptfs_file_info *
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 1a739531b0dde..a50efb18701ce 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -335,7 +335,7 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry,
 		ecryptfs_dentry->d_sb)->mount_crypt_stat;
 	if (mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED) {
 		if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
-			file_size = (crypt_stat->num_header_bytes_at_front
+			file_size = (crypt_stat->metadata_size
 				     + i_size_read(lower_dentry->d_inode));
 		else
 			file_size = i_size_read(lower_dentry->d_inode);
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 5a30e01547f1e..270f42ae7c0d1 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -122,8 +122,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
 					   * num_extents_per_page)
 					  + extent_num_in_page);
 		size_t num_header_extents_at_front =
-			(crypt_stat->num_header_bytes_at_front
-			 / crypt_stat->extent_size);
+			(crypt_stat->metadata_size / crypt_stat->extent_size);
 
 		if (view_extent_num < num_header_extents_at_front) {
 			/* This is a header extent */
@@ -152,7 +151,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
 			/* This is an encrypted data extent */
 			loff_t lower_offset =
 				((view_extent_num * crypt_stat->extent_size)
-				 - crypt_stat->num_header_bytes_at_front);
+				 - crypt_stat->metadata_size);
 
 			rc = ecryptfs_read_lower_page_segment(
 				page, (lower_offset >> PAGE_CACHE_SHIFT),

From 1984c23f9e0cdb432d90a85ecf88b424d36878fc Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Wed, 10 Feb 2010 23:17:44 -0600
Subject: [PATCH 021/464] eCryptfs: Clear buffer before reading in metadata
 xattr

We initially read in the first PAGE_CACHE_SIZE of a file to if the
eCryptfs header marker can be found.  If it isn't found and
ecryptfs_xattr_metadata was given as a mount option, then the
user.ecryptfs xattr is read into the same buffer.  Since the data from
the first page of the file wasn't cleared, it is possible that we think
we've found a second tag 3 or tag 1 packet and then error out after the
packet contents aren't as expected.  This patch clears the buffer before
filling it with metadata from the user.ecryptfs xattr.

Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/crypto.c | 1 +
 fs/ecryptfs/inode.c  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 391f558eb4d08..4d9db0ed88eaa 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1603,6 +1603,7 @@ int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry)
 						ecryptfs_dentry,
 						ECRYPTFS_VALIDATE_HEADER_SIZE);
 	if (rc) {
+		memset(page_virt, 0, PAGE_CACHE_SIZE);
 		rc = ecryptfs_read_xattr_region(page_virt, ecryptfs_inode);
 		if (rc) {
 			printk(KERN_DEBUG "Valid eCryptfs headers not found in "
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index a50efb18701ce..ddbd096c74068 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -323,6 +323,7 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry,
 	rc = ecryptfs_read_and_validate_header_region(page_virt,
 						      ecryptfs_dentry->d_inode);
 	if (rc) {
+		memset(page_virt, 0, PAGE_CACHE_SIZE);
 		rc = ecryptfs_read_and_validate_xattr_region(page_virt,
 							     ecryptfs_dentry);
 		if (rc) {

From f4e60e6b303bc46cdc477d3174dbf9cb5dd013aa Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Thu, 11 Feb 2010 00:02:32 -0600
Subject: [PATCH 022/464] eCryptfs: Strip metadata in xattr flag in encrypted
 view

The ecryptfs_encrypted_view mount option provides a unified way of
viewing encrypted eCryptfs files.  If the metadata is stored in a xattr,
the metadata is moved to the file header when the file is read inside
the eCryptfs mount.  Because of this, we should strip the
ECRYPTFS_METADATA_IN_XATTR flag from the header's flag section.  This
allows eCryptfs to treat the file as an eCryptfs file with a header
at the front.

Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/crypto.c          |  9 +++++----
 fs/ecryptfs/ecryptfs_kernel.h |  3 +++
 fs/ecryptfs/mmap.c            | 14 ++++++++++++++
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 4d9db0ed88eaa..fad5bf6a61163 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1107,9 +1107,9 @@ static void write_ecryptfs_marker(char *page_virt, size_t *written)
 	(*written) = MAGIC_ECRYPTFS_MARKER_SIZE_BYTES;
 }
 
-static void
-write_ecryptfs_flags(char *page_virt, struct ecryptfs_crypt_stat *crypt_stat,
-		     size_t *written)
+void ecryptfs_write_crypt_stat_flags(char *page_virt,
+				     struct ecryptfs_crypt_stat *crypt_stat,
+				     size_t *written)
 {
 	u32 flags = 0;
 	int i;
@@ -1290,7 +1290,8 @@ static int ecryptfs_write_headers_virt(char *page_virt, size_t max,
 	offset = ECRYPTFS_FILE_SIZE_BYTES;
 	write_ecryptfs_marker((page_virt + offset), &written);
 	offset += written;
-	write_ecryptfs_flags((page_virt + offset), crypt_stat, &written);
+	ecryptfs_write_crypt_stat_flags((page_virt + offset), crypt_stat,
+					&written);
 	offset += written;
 	ecryptfs_write_header_metadata((page_virt + offset), crypt_stat,
 				       &written);
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index d031efd7666b8..bc7115403f38d 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -659,6 +659,9 @@ int ecryptfs_decrypt_page(struct page *page);
 int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry);
 int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry);
 int ecryptfs_new_file_context(struct dentry *ecryptfs_dentry);
+void ecryptfs_write_crypt_stat_flags(char *page_virt,
+				     struct ecryptfs_crypt_stat *crypt_stat,
+				     size_t *written);
 int ecryptfs_read_and_validate_header_region(char *data,
 					     struct inode *ecryptfs_inode);
 int ecryptfs_read_and_validate_xattr_region(char *page_virt,
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 270f42ae7c0d1..bea998a25afde 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -82,6 +82,19 @@ static int ecryptfs_writepage(struct page *page, struct writeback_control *wbc)
 	return rc;
 }
 
+static void strip_xattr_flag(char *page_virt,
+			     struct ecryptfs_crypt_stat *crypt_stat)
+{
+	if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) {
+		size_t written;
+
+		crypt_stat->flags &= ~ECRYPTFS_METADATA_IN_XATTR;
+		ecryptfs_write_crypt_stat_flags(page_virt, crypt_stat,
+						&written);
+		crypt_stat->flags |= ECRYPTFS_METADATA_IN_XATTR;
+	}
+}
+
 /**
  *   Header Extent:
  *     Octets 0-7:        Unencrypted file size (big-endian)
@@ -136,6 +149,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
 
 				rc = ecryptfs_read_xattr_region(
 					page_virt, page->mapping->host);
+				strip_xattr_flag(page_virt + 16, crypt_stat);
 				ecryptfs_write_header_metadata(page_virt + 20,
 							       crypt_stat,
 							       &written);

From 8d06a1e1e9c69244f08beb7d17146483f9dcd120 Mon Sep 17 00:00:00 2001
From: Robert Hooker <sarvatt@ubuntu.com>
Date: Fri, 19 Mar 2010 15:13:27 -0400
Subject: [PATCH 023/464] drm/i915: Disable FBC on 915GM and 945GM.

It is causing hangs after a suspend/resume cycle with the default
powersave=1 module option on these chipsets since 2.6.32-rc.

BugLink: http://bugs.launchpad.net/bugs/492392
Signed-off-by: Robert Hooker <sarvatt@ubuntu.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_drv.c      | 4 ++--
 drivers/gpu/drm/i915/intel_display.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 4b26919abdb27..1a39ec75d76bc 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -80,14 +80,14 @@ const static struct intel_device_info intel_i915g_info = {
 	.is_i915g = 1, .is_i9xx = 1, .cursor_needs_physical = 1,
 };
 const static struct intel_device_info intel_i915gm_info = {
-	.is_i9xx = 1,  .is_mobile = 1, .has_fbc = 1,
+	.is_i9xx = 1,  .is_mobile = 1,
 	.cursor_needs_physical = 1,
 };
 const static struct intel_device_info intel_i945g_info = {
 	.is_i9xx = 1, .has_hotplug = 1, .cursor_needs_physical = 1,
 };
 const static struct intel_device_info intel_i945gm_info = {
-	.is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1, .has_fbc = 1,
+	.is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1,
 	.has_hotplug = 1, .cursor_needs_physical = 1,
 };
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 58fc7fa0eb1d6..f0214908a9355 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4814,7 +4814,7 @@ static void intel_init_display(struct drm_device *dev)
 			dev_priv->display.fbc_enabled = g4x_fbc_enabled;
 			dev_priv->display.enable_fbc = g4x_enable_fbc;
 			dev_priv->display.disable_fbc = g4x_disable_fbc;
-		} else if (IS_I965GM(dev) || IS_I945GM(dev) || IS_I915GM(dev)) {
+		} else if (IS_I965GM(dev)) {
 			dev_priv->display.fbc_enabled = i8xx_fbc_enabled;
 			dev_priv->display.enable_fbc = i8xx_enable_fbc;
 			dev_priv->display.disable_fbc = i8xx_disable_fbc;

From 23010e43b353c2cdc9725cbedc7e364708039bf7 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 8 Mar 2010 13:35:02 +0100
Subject: [PATCH 024/464] drm/i915: introduce to_intel_bo helper

This is a purely cosmetic change to make changes in this area easier.
And hey, it's not only clearer and typechecked, but actually shorter,
too!

[anholt: To clarify, this is a change to let us later make
drm_i915_gem_object subclass drm_gem_object, instead of having
drm_gem_object have a pointer to i915's private data]

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_debugfs.c    |   2 +-
 drivers/gpu/drm/i915/i915_drv.c        |   2 +-
 drivers/gpu/drm/i915/i915_drv.h        |   2 +
 drivers/gpu/drm/i915/i915_gem.c        | 132 ++++++++++++-------------
 drivers/gpu/drm/i915/i915_gem_debug.c  |   4 +-
 drivers/gpu/drm/i915/i915_gem_tiling.c |  10 +-
 drivers/gpu/drm/i915/i915_irq.c        |   2 +-
 drivers/gpu/drm/i915/intel_display.c   |  28 +++---
 drivers/gpu/drm/i915/intel_fb.c        |   2 +-
 drivers/gpu/drm/i915/intel_overlay.c   |   6 +-
 10 files changed, 96 insertions(+), 94 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 1376dfe44c952..bb3a4a8aba08b 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -225,7 +225,7 @@ static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
 		} else {
 			struct drm_i915_gem_object *obj_priv;
 
-			obj_priv = obj->driver_private;
+			obj_priv = to_intel_bo(obj);
 			seq_printf(m, "Fenced object[%2d] = %p: %s "
 				   "%08x %08zx %08x %s %08x %08x %d",
 				   i, obj, get_pin_flag(obj_priv),
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 1a39ec75d76bc..0af3dcc85ce96 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -361,7 +361,7 @@ int i965_reset(struct drm_device *dev, u8 flags)
 	    !dev_priv->mm.suspended) {
 		drm_i915_ring_buffer_t *ring = &dev_priv->ring;
 		struct drm_gem_object *obj = ring->ring_obj;
-		struct drm_i915_gem_object *obj_priv = obj->driver_private;
+		struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 		dev_priv->mm.suspended = 0;
 
 		/* Stop the ring if it's running. */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index aba8260fbc5ed..b7cb4aadd0599 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -731,6 +731,8 @@ struct drm_i915_gem_object {
 	atomic_t pending_flip;
 };
 
+#define to_intel_bo(x) ((struct drm_i915_gem_object *) (x)->driver_private)
+
 /**
  * Request queue structure.
  *
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 933e865a89297..b85727ce308e4 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -162,7 +162,7 @@ fast_shmem_read(struct page **pages,
 static int i915_gem_object_needs_bit17_swizzle(struct drm_gem_object *obj)
 {
 	drm_i915_private_t *dev_priv = obj->dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
 		obj_priv->tiling_mode != I915_TILING_NONE;
@@ -263,7 +263,7 @@ i915_gem_shmem_pread_fast(struct drm_device *dev, struct drm_gem_object *obj,
 			  struct drm_i915_gem_pread *args,
 			  struct drm_file *file_priv)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	ssize_t remain;
 	loff_t offset, page_base;
 	char __user *user_data;
@@ -284,7 +284,7 @@ i915_gem_shmem_pread_fast(struct drm_device *dev, struct drm_gem_object *obj,
 	if (ret != 0)
 		goto fail_put_pages;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	offset = args->offset;
 
 	while (remain > 0) {
@@ -353,7 +353,7 @@ i915_gem_shmem_pread_slow(struct drm_device *dev, struct drm_gem_object *obj,
 			  struct drm_i915_gem_pread *args,
 			  struct drm_file *file_priv)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	struct mm_struct *mm = current->mm;
 	struct page **user_pages;
 	ssize_t remain;
@@ -402,7 +402,7 @@ i915_gem_shmem_pread_slow(struct drm_device *dev, struct drm_gem_object *obj,
 	if (ret != 0)
 		goto fail_put_pages;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	offset = args->offset;
 
 	while (remain > 0) {
@@ -478,7 +478,7 @@ i915_gem_pread_ioctl(struct drm_device *dev, void *data,
 	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 	if (obj == NULL)
 		return -EBADF;
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	/* Bounds check source.
 	 *
@@ -580,7 +580,7 @@ i915_gem_gtt_pwrite_fast(struct drm_device *dev, struct drm_gem_object *obj,
 			 struct drm_i915_gem_pwrite *args,
 			 struct drm_file *file_priv)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	ssize_t remain;
 	loff_t offset, page_base;
@@ -604,7 +604,7 @@ i915_gem_gtt_pwrite_fast(struct drm_device *dev, struct drm_gem_object *obj,
 	if (ret)
 		goto fail;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	offset = obj_priv->gtt_offset + args->offset;
 
 	while (remain > 0) {
@@ -654,7 +654,7 @@ i915_gem_gtt_pwrite_slow(struct drm_device *dev, struct drm_gem_object *obj,
 			 struct drm_i915_gem_pwrite *args,
 			 struct drm_file *file_priv)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	ssize_t remain;
 	loff_t gtt_page_base, offset;
@@ -698,7 +698,7 @@ i915_gem_gtt_pwrite_slow(struct drm_device *dev, struct drm_gem_object *obj,
 	if (ret)
 		goto out_unpin_object;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	offset = obj_priv->gtt_offset + args->offset;
 
 	while (remain > 0) {
@@ -760,7 +760,7 @@ i915_gem_shmem_pwrite_fast(struct drm_device *dev, struct drm_gem_object *obj,
 			   struct drm_i915_gem_pwrite *args,
 			   struct drm_file *file_priv)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	ssize_t remain;
 	loff_t offset, page_base;
 	char __user *user_data;
@@ -780,7 +780,7 @@ i915_gem_shmem_pwrite_fast(struct drm_device *dev, struct drm_gem_object *obj,
 	if (ret != 0)
 		goto fail_put_pages;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	offset = args->offset;
 	obj_priv->dirty = 1;
 
@@ -828,7 +828,7 @@ i915_gem_shmem_pwrite_slow(struct drm_device *dev, struct drm_gem_object *obj,
 			   struct drm_i915_gem_pwrite *args,
 			   struct drm_file *file_priv)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	struct mm_struct *mm = current->mm;
 	struct page **user_pages;
 	ssize_t remain;
@@ -876,7 +876,7 @@ i915_gem_shmem_pwrite_slow(struct drm_device *dev, struct drm_gem_object *obj,
 	if (ret != 0)
 		goto fail_put_pages;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	offset = args->offset;
 	obj_priv->dirty = 1;
 
@@ -951,7 +951,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 	if (obj == NULL)
 		return -EBADF;
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	/* Bounds check destination.
 	 *
@@ -1033,7 +1033,7 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
 	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 	if (obj == NULL)
 		return -EBADF;
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	mutex_lock(&dev->struct_mutex);
 
@@ -1095,7 +1095,7 @@ i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
 	DRM_INFO("%s: sw_finish %d (%p %zd)\n",
 		 __func__, args->handle, obj, obj->size);
 #endif
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	/* Pinned buffers may be scanout, so flush the cache */
 	if (obj_priv->pin_count)
@@ -1166,7 +1166,7 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	struct drm_gem_object *obj = vma->vm_private_data;
 	struct drm_device *dev = obj->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	pgoff_t page_offset;
 	unsigned long pfn;
 	int ret = 0;
@@ -1233,7 +1233,7 @@ i915_gem_create_mmap_offset(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	struct drm_gem_mm *mm = dev->mm_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	struct drm_map_list *list;
 	struct drm_local_map *map;
 	int ret = 0;
@@ -1304,7 +1304,7 @@ void
 i915_gem_release_mmap(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	if (dev->dev_mapping)
 		unmap_mapping_range(dev->dev_mapping,
@@ -1315,7 +1315,7 @@ static void
 i915_gem_free_mmap_offset(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	struct drm_gem_mm *mm = dev->mm_private;
 	struct drm_map_list *list;
 
@@ -1346,7 +1346,7 @@ static uint32_t
 i915_gem_get_gtt_alignment(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int start, i;
 
 	/*
@@ -1405,7 +1405,7 @@ i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
 
 	mutex_lock(&dev->struct_mutex);
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	if (obj_priv->madv != I915_MADV_WILLNEED) {
 		DRM_ERROR("Attempting to mmap a purgeable buffer\n");
@@ -1449,7 +1449,7 @@ i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
 void
 i915_gem_object_put_pages(struct drm_gem_object *obj)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int page_count = obj->size / PAGE_SIZE;
 	int i;
 
@@ -1485,7 +1485,7 @@ i915_gem_object_move_to_active(struct drm_gem_object *obj, uint32_t seqno)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	/* Add a reference if we're newly entering the active list. */
 	if (!obj_priv->active) {
@@ -1505,7 +1505,7 @@ i915_gem_object_move_to_flushing(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	BUG_ON(!obj_priv->active);
 	list_move_tail(&obj_priv->list, &dev_priv->mm.flushing_list);
@@ -1516,7 +1516,7 @@ i915_gem_object_move_to_flushing(struct drm_gem_object *obj)
 static void
 i915_gem_object_truncate(struct drm_gem_object *obj)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	struct inode *inode;
 
 	inode = obj->filp->f_path.dentry->d_inode;
@@ -1537,7 +1537,7 @@ i915_gem_object_move_to_inactive(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	i915_verify_inactive(dev, __FILE__, __LINE__);
 	if (obj_priv->pin_count != 0)
@@ -1964,7 +1964,7 @@ static int
 i915_gem_object_wait_rendering(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int ret;
 
 	/* This function only exists to support waiting for existing rendering,
@@ -1996,7 +1996,7 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int ret = 0;
 
 #if WATCH_BUF
@@ -2172,7 +2172,7 @@ i915_gem_evict_something(struct drm_device *dev, int min_size)
 #if WATCH_LRU
 			DRM_INFO("%s: evicting %p\n", __func__, obj);
 #endif
-			obj_priv = obj->driver_private;
+			obj_priv = to_intel_bo(obj);
 			BUG_ON(obj_priv->pin_count != 0);
 			BUG_ON(obj_priv->active);
 
@@ -2243,7 +2243,7 @@ int
 i915_gem_object_get_pages(struct drm_gem_object *obj,
 			  gfp_t gfpmask)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int page_count, i;
 	struct address_space *mapping;
 	struct inode *inode;
@@ -2296,7 +2296,7 @@ static void sandybridge_write_fence_reg(struct drm_i915_fence_reg *reg)
 	struct drm_gem_object *obj = reg->obj;
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int regnum = obj_priv->fence_reg;
 	uint64_t val;
 
@@ -2318,7 +2318,7 @@ static void i965_write_fence_reg(struct drm_i915_fence_reg *reg)
 	struct drm_gem_object *obj = reg->obj;
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int regnum = obj_priv->fence_reg;
 	uint64_t val;
 
@@ -2338,7 +2338,7 @@ static void i915_write_fence_reg(struct drm_i915_fence_reg *reg)
 	struct drm_gem_object *obj = reg->obj;
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int regnum = obj_priv->fence_reg;
 	int tile_width;
 	uint32_t fence_reg, val;
@@ -2380,7 +2380,7 @@ static void i830_write_fence_reg(struct drm_i915_fence_reg *reg)
 	struct drm_gem_object *obj = reg->obj;
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int regnum = obj_priv->fence_reg;
 	uint32_t val;
 	uint32_t pitch_val;
@@ -2424,7 +2424,7 @@ static int i915_find_fence_reg(struct drm_device *dev)
 		if (!reg->obj)
 			return i;
 
-		obj_priv = reg->obj->driver_private;
+		obj_priv = to_intel_bo(reg->obj);
 		if (!obj_priv->pin_count)
 		    avail++;
 	}
@@ -2479,7 +2479,7 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	struct drm_i915_fence_reg *reg = NULL;
 	int ret;
 
@@ -2546,7 +2546,7 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	if (IS_GEN6(dev)) {
 		I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 +
@@ -2582,7 +2582,7 @@ int
 i915_gem_object_put_fence_reg(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	if (obj_priv->fence_reg == I915_FENCE_REG_NONE)
 		return 0;
@@ -2620,7 +2620,7 @@ i915_gem_object_bind_to_gtt(struct drm_gem_object *obj, unsigned alignment)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	struct drm_mm_node *free_space;
 	gfp_t gfpmask =  __GFP_NORETRY | __GFP_NOWARN;
 	int ret;
@@ -2727,7 +2727,7 @@ i915_gem_object_bind_to_gtt(struct drm_gem_object *obj, unsigned alignment)
 void
 i915_gem_clflush_object(struct drm_gem_object *obj)
 {
-	struct drm_i915_gem_object	*obj_priv = obj->driver_private;
+	struct drm_i915_gem_object	*obj_priv = to_intel_bo(obj);
 
 	/* If we don't have a page list set up, then we're not pinned
 	 * to GPU, and we can ignore the cache flush because it'll happen
@@ -2828,7 +2828,7 @@ i915_gem_object_flush_write_domain(struct drm_gem_object *obj)
 int
 i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj, int write)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	uint32_t old_write_domain, old_read_domains;
 	int ret;
 
@@ -2878,7 +2878,7 @@ int
 i915_gem_object_set_to_display_plane(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	uint32_t old_write_domain, old_read_domains;
 	int ret;
 
@@ -3091,7 +3091,7 @@ static void
 i915_gem_object_set_to_gpu_domain(struct drm_gem_object *obj)
 {
 	struct drm_device		*dev = obj->dev;
-	struct drm_i915_gem_object	*obj_priv = obj->driver_private;
+	struct drm_i915_gem_object	*obj_priv = to_intel_bo(obj);
 	uint32_t			invalidate_domains = 0;
 	uint32_t			flush_domains = 0;
 	uint32_t			old_read_domains;
@@ -3176,7 +3176,7 @@ i915_gem_object_set_to_gpu_domain(struct drm_gem_object *obj)
 static void
 i915_gem_object_set_to_full_cpu_read_domain(struct drm_gem_object *obj)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	if (!obj_priv->page_cpu_valid)
 		return;
@@ -3216,7 +3216,7 @@ static int
 i915_gem_object_set_cpu_read_domain_range(struct drm_gem_object *obj,
 					  uint64_t offset, uint64_t size)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	uint32_t old_read_domains;
 	int i, ret;
 
@@ -3285,7 +3285,7 @@ i915_gem_object_pin_and_relocate(struct drm_gem_object *obj,
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int i, ret;
 	void __iomem *reloc_page;
 	bool need_fence;
@@ -3336,7 +3336,7 @@ i915_gem_object_pin_and_relocate(struct drm_gem_object *obj,
 			i915_gem_object_unpin(obj);
 			return -EBADF;
 		}
-		target_obj_priv = target_obj->driver_private;
+		target_obj_priv = to_intel_bo(target_obj);
 
 #if WATCH_RELOC
 		DRM_INFO("%s: obj %p offset %08x target %d "
@@ -3688,7 +3688,7 @@ i915_gem_wait_for_pending_flip(struct drm_device *dev,
 		prepare_to_wait(&dev_priv->pending_flip_queue,
 				&wait, TASK_INTERRUPTIBLE);
 		for (i = 0; i < count; i++) {
-			obj_priv = object_list[i]->driver_private;
+			obj_priv = to_intel_bo(object_list[i]);
 			if (atomic_read(&obj_priv->pending_flip) > 0)
 				break;
 		}
@@ -3797,7 +3797,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 			goto err;
 		}
 
-		obj_priv = object_list[i]->driver_private;
+		obj_priv = to_intel_bo(object_list[i]);
 		if (obj_priv->in_execbuffer) {
 			DRM_ERROR("Object %p appears more than once in object list\n",
 				   object_list[i]);
@@ -3923,7 +3923,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 
 	for (i = 0; i < args->buffer_count; i++) {
 		struct drm_gem_object *obj = object_list[i];
-		struct drm_i915_gem_object *obj_priv = obj->driver_private;
+		struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 		uint32_t old_write_domain = obj->write_domain;
 
 		obj->write_domain = obj->pending_write_domain;
@@ -3998,7 +3998,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 
 	for (i = 0; i < args->buffer_count; i++) {
 		if (object_list[i]) {
-			obj_priv = object_list[i]->driver_private;
+			obj_priv = to_intel_bo(object_list[i]);
 			obj_priv->in_execbuffer = false;
 		}
 		drm_gem_object_unreference(object_list[i]);
@@ -4176,7 +4176,7 @@ int
 i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int ret;
 
 	i915_verify_inactive(dev, __FILE__, __LINE__);
@@ -4209,7 +4209,7 @@ i915_gem_object_unpin(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	i915_verify_inactive(dev, __FILE__, __LINE__);
 	obj_priv->pin_count--;
@@ -4249,7 +4249,7 @@ i915_gem_pin_ioctl(struct drm_device *dev, void *data,
 		mutex_unlock(&dev->struct_mutex);
 		return -EBADF;
 	}
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	if (obj_priv->madv != I915_MADV_WILLNEED) {
 		DRM_ERROR("Attempting to pin a purgeable buffer\n");
@@ -4306,7 +4306,7 @@ i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
 		return -EBADF;
 	}
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	if (obj_priv->pin_filp != file_priv) {
 		DRM_ERROR("Not pinned by caller in i915_gem_pin_ioctl(): %d\n",
 			  args->handle);
@@ -4348,7 +4348,7 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data,
 	 */
 	i915_gem_retire_requests(dev);
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	/* Don't count being on the flushing list against the object being
 	 * done.  Otherwise, a buffer left on the flushing list but not getting
 	 * flushed (because nobody's flushing that domain) won't ever return
@@ -4394,7 +4394,7 @@ i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
 	}
 
 	mutex_lock(&dev->struct_mutex);
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	if (obj_priv->pin_count) {
 		drm_gem_object_unreference(obj);
@@ -4455,7 +4455,7 @@ int i915_gem_init_object(struct drm_gem_object *obj)
 void i915_gem_free_object(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	trace_i915_gem_object_destroy(obj);
 
@@ -4564,7 +4564,7 @@ i915_gem_init_hws(struct drm_device *dev)
 		DRM_ERROR("Failed to allocate status page\n");
 		return -ENOMEM;
 	}
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	obj_priv->agp_type = AGP_USER_CACHED_MEMORY;
 
 	ret = i915_gem_object_pin(obj, 4096);
@@ -4608,7 +4608,7 @@ i915_gem_cleanup_hws(struct drm_device *dev)
 		return;
 
 	obj = dev_priv->hws_obj;
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	kunmap(obj_priv->pages[0]);
 	i915_gem_object_unpin(obj);
@@ -4642,7 +4642,7 @@ i915_gem_init_ringbuffer(struct drm_device *dev)
 		i915_gem_cleanup_hws(dev);
 		return -ENOMEM;
 	}
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	ret = i915_gem_object_pin(obj, 4096);
 	if (ret != 0) {
@@ -4935,7 +4935,7 @@ void i915_gem_detach_phys_object(struct drm_device *dev,
 	int ret;
 	int page_count;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	if (!obj_priv->phys_obj)
 		return;
 
@@ -4974,7 +4974,7 @@ i915_gem_attach_phys_object(struct drm_device *dev,
 	if (id > I915_MAX_PHYS_OBJECT)
 		return -EINVAL;
 
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	if (obj_priv->phys_obj) {
 		if (obj_priv->phys_obj->id == id)
@@ -5025,7 +5025,7 @@ i915_gem_phys_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
 		     struct drm_i915_gem_pwrite *args,
 		     struct drm_file *file_priv)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	void *obj_addr;
 	int ret;
 	char __user *user_data;
diff --git a/drivers/gpu/drm/i915/i915_gem_debug.c b/drivers/gpu/drm/i915/i915_gem_debug.c
index e602614bd3f89..35507cf53fa3c 100644
--- a/drivers/gpu/drm/i915/i915_gem_debug.c
+++ b/drivers/gpu/drm/i915/i915_gem_debug.c
@@ -72,7 +72,7 @@ void
 i915_gem_dump_object(struct drm_gem_object *obj, int len,
 		     const char *where, uint32_t mark)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int page;
 
 	DRM_INFO("%s: object at offset %08x\n", where, obj_priv->gtt_offset);
@@ -137,7 +137,7 @@ void
 i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int page;
 	uint32_t *gtt_mapping;
 	uint32_t *backing_map = NULL;
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index c01c878e51baf..449157f716106 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -240,7 +240,7 @@ bool
 i915_gem_object_fence_offset_ok(struct drm_gem_object *obj, int tiling_mode)
 {
 	struct drm_device *dev = obj->dev;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 
 	if (obj_priv->gtt_space == NULL)
 		return true;
@@ -280,7 +280,7 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
 	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 	if (obj == NULL)
 		return -EINVAL;
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	if (!i915_tiling_ok(dev, args->stride, obj->size, args->tiling_mode)) {
 		drm_gem_object_unreference_unlocked(obj);
@@ -364,7 +364,7 @@ i915_gem_get_tiling(struct drm_device *dev, void *data,
 	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 	if (obj == NULL)
 		return -EINVAL;
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	mutex_lock(&dev->struct_mutex);
 
@@ -427,7 +427,7 @@ i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int page_count = obj->size >> PAGE_SHIFT;
 	int i;
 
@@ -456,7 +456,7 @@ i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	int page_count = obj->size >> PAGE_SHIFT;
 	int i;
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5388354da0d17..bfbdad92d73d1 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -443,7 +443,7 @@ i915_error_object_create(struct drm_device *dev,
 	if (src == NULL)
 		return NULL;
 
-	src_priv = src->driver_private;
+	src_priv = to_intel_bo(src);
 	if (src_priv->pages == NULL)
 		return NULL;
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f0214908a9355..7adb3a54aac69 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1002,7 +1002,7 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_framebuffer *fb = crtc->fb;
 	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
-	struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int plane, i;
 	u32 fbc_ctl, fbc_ctl2;
@@ -1079,7 +1079,7 @@ static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_framebuffer *fb = crtc->fb;
 	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
-	struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int plane = (intel_crtc->plane == 0 ? DPFC_CTL_PLANEA :
 		     DPFC_CTL_PLANEB);
@@ -1175,7 +1175,7 @@ static void intel_update_fbc(struct drm_crtc *crtc,
 		return;
 
 	intel_fb = to_intel_framebuffer(fb);
-	obj_priv = intel_fb->obj->driver_private;
+	obj_priv = to_intel_bo(intel_fb->obj);
 
 	/*
 	 * If FBC is already on, we just have to verify that we can
@@ -1242,7 +1242,7 @@ static void intel_update_fbc(struct drm_crtc *crtc,
 static int
 intel_pin_and_fence_fb_obj(struct drm_device *dev, struct drm_gem_object *obj)
 {
-	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 	u32 alignment;
 	int ret;
 
@@ -1322,7 +1322,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
 
 	intel_fb = to_intel_framebuffer(crtc->fb);
 	obj = intel_fb->obj;
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 
 	mutex_lock(&dev->struct_mutex);
 	ret = intel_pin_and_fence_fb_obj(dev, obj);
@@ -1400,7 +1400,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
 
 	if (old_fb) {
 		intel_fb = to_intel_framebuffer(old_fb);
-		obj_priv = intel_fb->obj->driver_private;
+		obj_priv = to_intel_bo(intel_fb->obj);
 		i915_gem_object_unpin(intel_fb->obj);
 	}
 	intel_increase_pllclock(crtc, true);
@@ -3510,7 +3510,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
 	if (!bo)
 		return -ENOENT;
 
-	obj_priv = bo->driver_private;
+	obj_priv = to_intel_bo(bo);
 
 	if (bo->size < width * height * 4) {
 		DRM_ERROR("buffer is to small\n");
@@ -4155,7 +4155,7 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe)
 	work = intel_crtc->unpin_work;
 	if (work == NULL || !work->pending) {
 		if (work && !work->pending) {
-			obj_priv = work->pending_flip_obj->driver_private;
+			obj_priv = to_intel_bo(work->pending_flip_obj);
 			DRM_DEBUG_DRIVER("flip finish: %p (%d) not pending?\n",
 					 obj_priv,
 					 atomic_read(&obj_priv->pending_flip));
@@ -4180,7 +4180,7 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe)
 
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
-	obj_priv = work->pending_flip_obj->driver_private;
+	obj_priv = to_intel_bo(work->pending_flip_obj);
 
 	/* Initial scanout buffer will have a 0 pending flip count */
 	if ((atomic_read(&obj_priv->pending_flip) == 0) ||
@@ -4251,7 +4251,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	ret = intel_pin_and_fence_fb_obj(dev, obj);
 	if (ret != 0) {
 		DRM_DEBUG_DRIVER("flip queue: %p pin & fence failed\n",
-			  obj->driver_private);
+			  to_intel_bo(obj));
 		kfree(work);
 		intel_crtc->unpin_work = NULL;
 		mutex_unlock(&dev->struct_mutex);
@@ -4265,7 +4265,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	crtc->fb = fb;
 	i915_gem_object_flush_write_domain(obj);
 	drm_vblank_get(dev, intel_crtc->pipe);
-	obj_priv = obj->driver_private;
+	obj_priv = to_intel_bo(obj);
 	atomic_inc(&obj_priv->pending_flip);
 	work->pending_flip_obj = obj;
 
@@ -4778,14 +4778,14 @@ void intel_init_clock_gating(struct drm_device *dev)
 		struct drm_i915_gem_object *obj_priv = NULL;
 
 		if (dev_priv->pwrctx) {
-			obj_priv = dev_priv->pwrctx->driver_private;
+			obj_priv = to_intel_bo(dev_priv->pwrctx);
 		} else {
 			struct drm_gem_object *pwrctx;
 
 			pwrctx = intel_alloc_power_context(dev);
 			if (pwrctx) {
 				dev_priv->pwrctx = pwrctx;
-				obj_priv = pwrctx->driver_private;
+				obj_priv = to_intel_bo(pwrctx);
 			}
 		}
 
@@ -4956,7 +4956,7 @@ void intel_modeset_cleanup(struct drm_device *dev)
 	if (dev_priv->pwrctx) {
 		struct drm_i915_gem_object *obj_priv;
 
-		obj_priv = dev_priv->pwrctx->driver_private;
+		obj_priv = to_intel_bo(dev_priv->pwrctx);
 		I915_WRITE(PWRCTXA, obj_priv->gtt_offset &~ PWRCTX_EN);
 		I915_READ(PWRCTXA);
 		i915_gem_object_unpin(dev_priv->pwrctx);
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 8cd791dc5b298..c9fbdfa9c5752 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -145,7 +145,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
 		ret = -ENOMEM;
 		goto out;
 	}
-	obj_priv = fbo->driver_private;
+	obj_priv = to_intel_bo(fbo);
 
 	mutex_lock(&dev->struct_mutex);
 
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 60595fc26fdd3..6d524a1fc2713 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -724,7 +724,7 @@ int intel_overlay_do_put_image(struct intel_overlay *overlay,
 	int ret, tmp_width;
 	struct overlay_registers *regs;
 	bool scale_changed = false;
-	struct drm_i915_gem_object *bo_priv = new_bo->driver_private;
+	struct drm_i915_gem_object *bo_priv = to_intel_bo(new_bo);
 	struct drm_device *dev = overlay->dev;
 
 	BUG_ON(!mutex_is_locked(&dev->struct_mutex));
@@ -809,7 +809,7 @@ int intel_overlay_do_put_image(struct intel_overlay *overlay,
 	intel_overlay_continue(overlay, scale_changed);
 
 	overlay->old_vid_bo = overlay->vid_bo;
-	overlay->vid_bo = new_bo->driver_private;
+	overlay->vid_bo = to_intel_bo(new_bo);
 
 	return 0;
 
@@ -1344,7 +1344,7 @@ void intel_setup_overlay(struct drm_device *dev)
 	reg_bo = drm_gem_object_alloc(dev, PAGE_SIZE);
 	if (!reg_bo)
 		goto out_free;
-	overlay->reg_bo = reg_bo->driver_private;
+	overlay->reg_bo = to_intel_bo(reg_bo);
 
 	if (OVERLAY_NONPHYSICAL(dev)) {
 		ret = i915_gem_object_pin(reg_bo, PAGE_SIZE);

From 5e64499f3d39c633de49320e399479642c2b1743 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri, 19 Mar 2010 21:46:23 +0100
Subject: [PATCH 025/464] agp/intel: intel_845_driver is an agp driver!

... not a GTT driver. So the additional chipset flush introduced in

commit 2162e6a2b0cd5acbb9bd8a3c94e1c1269b078295
Author: Dave Airlie <airlied@redhat.com>
Date:   Wed Nov 21 16:36:31 2007 +1000

    agp/intel: Add chipset flushing support for i8xx chipsets.

to fix a GTT problem makes absolutely no sense. If this would really be needed
for AGP chipsets, too, we should add it to all i8xx agp drivers, not just one.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/char/agp/intel-agp.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index b78d5c381efe7..a34fc9fdfc53a 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -1816,8 +1816,6 @@ static int intel_845_configure(void)
 	pci_write_config_byte(agp_bridge->dev, INTEL_I845_AGPM, temp2 | (1 << 1));
 	/* clear any possible error conditions */
 	pci_write_config_word(agp_bridge->dev, INTEL_I845_ERRSTS, 0x001c);
-
-	intel_i830_setup_flush();
 	return 0;
 }
 
@@ -2187,7 +2185,6 @@ static const struct agp_bridge_driver intel_845_driver = {
 	.agp_destroy_page	= agp_generic_destroy_page,
 	.agp_destroy_pages      = agp_generic_destroy_pages,
 	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,
-	.chipset_flush		= intel_i830_chipset_flush,
 };
 
 static const struct agp_bridge_driver intel_850_driver = {

From 21d40d37eca86872f2bf0af995809ebdef25c9d9 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 25 Mar 2010 11:11:14 -0700
Subject: [PATCH 026/464] drm/i915: Rename intel_output to intel_encoder.

The intel_output naming is inherited from the UMS code, which had a
structure of screen -> CRTC -> output.  The DRM code has an additional
notion of encoder/connector, so the structure is screen -> CRTC ->
encoder -> connector.  This is a useful structure for SDVO encoders
which can support multiple connectors (each of which requires
different programming in the one encoder and could be connected to
different CRTCs), or for DVI-I, where multiple encoders feed into the
connector for whether it's used for digital or analog.  Most of our
code is encoder-related, so transition it to talking about encoders
before we start trying to distinguish connectors.

This patch is produced by sed s/intel_output/intel_encoder/ over the
driver.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_irq.c      |   6 +-
 drivers/gpu/drm/i915/intel_crt.c     |  68 ++--
 drivers/gpu/drm/i915/intel_display.c |  46 +--
 drivers/gpu/drm/i915/intel_dp.c      | 256 ++++++------
 drivers/gpu/drm/i915/intel_drv.h     |  18 +-
 drivers/gpu/drm/i915/intel_dvo.c     |  92 ++---
 drivers/gpu/drm/i915/intel_hdmi.c    |  86 ++--
 drivers/gpu/drm/i915/intel_lvds.c    |  64 +--
 drivers/gpu/drm/i915/intel_modes.c   |  22 +-
 drivers/gpu/drm/i915/intel_sdvo.c    | 572 +++++++++++++--------------
 drivers/gpu/drm/i915/intel_tv.c      |  96 ++---
 11 files changed, 663 insertions(+), 663 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index bfbdad92d73d1..5b53adfad40a2 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -259,10 +259,10 @@ static void i915_hotplug_work_func(struct work_struct *work)
 
 	if (mode_config->num_connector) {
 		list_for_each_entry(connector, &mode_config->connector_list, head) {
-			struct intel_output *intel_output = to_intel_output(connector);
+			struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 	
-			if (intel_output->hot_plug)
-				(*intel_output->hot_plug) (intel_output);
+			if (intel_encoder->hot_plug)
+				(*intel_encoder->hot_plug) (intel_encoder);
 		}
 	}
 	/* Just fire off a uevent and let userspace tell us what to do */
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index fccf07470c8f6..36c4ad7fb3b6b 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -246,19 +246,19 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
 
 static bool intel_crt_detect_ddc(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
 	/* CRT should always be at 0, but check anyway */
-	if (intel_output->type != INTEL_OUTPUT_ANALOG)
+	if (intel_encoder->type != INTEL_OUTPUT_ANALOG)
 		return false;
 
-	return intel_ddc_probe(intel_output);
+	return intel_ddc_probe(intel_encoder);
 }
 
 static enum drm_connector_status
-intel_crt_load_detect(struct drm_crtc *crtc, struct intel_output *intel_output)
+intel_crt_load_detect(struct drm_crtc *crtc, struct intel_encoder *intel_encoder)
 {
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -386,8 +386,8 @@ intel_crt_load_detect(struct drm_crtc *crtc, struct intel_output *intel_output)
 static enum drm_connector_status intel_crt_detect(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	struct drm_crtc *crtc;
 	int dpms_mode;
 	enum drm_connector_status status;
@@ -404,13 +404,13 @@ static enum drm_connector_status intel_crt_detect(struct drm_connector *connecto
 
 	/* for pre-945g platforms use load detect */
 	if (encoder->crtc && encoder->crtc->enabled) {
-		status = intel_crt_load_detect(encoder->crtc, intel_output);
+		status = intel_crt_load_detect(encoder->crtc, intel_encoder);
 	} else {
-		crtc = intel_get_load_detect_pipe(intel_output,
+		crtc = intel_get_load_detect_pipe(intel_encoder,
 						  NULL, &dpms_mode);
 		if (crtc) {
-			status = intel_crt_load_detect(crtc, intel_output);
-			intel_release_load_detect_pipe(intel_output, dpms_mode);
+			status = intel_crt_load_detect(crtc, intel_encoder);
+			intel_release_load_detect_pipe(intel_encoder, dpms_mode);
 		} else
 			status = connector_status_unknown;
 	}
@@ -420,9 +420,9 @@ static enum drm_connector_status intel_crt_detect(struct drm_connector *connecto
 
 static void intel_crt_destroy(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
-	intel_i2c_destroy(intel_output->ddc_bus);
+	intel_i2c_destroy(intel_encoder->ddc_bus);
 	drm_sysfs_connector_remove(connector);
 	drm_connector_cleanup(connector);
 	kfree(connector);
@@ -431,28 +431,28 @@ static void intel_crt_destroy(struct drm_connector *connector)
 static int intel_crt_get_modes(struct drm_connector *connector)
 {
 	int ret;
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 	struct i2c_adapter *ddcbus;
 	struct drm_device *dev = connector->dev;
 
 
-	ret = intel_ddc_get_modes(intel_output);
+	ret = intel_ddc_get_modes(intel_encoder);
 	if (ret || !IS_G4X(dev))
 		goto end;
 
-	ddcbus = intel_output->ddc_bus;
+	ddcbus = intel_encoder->ddc_bus;
 	/* Try to probe digital port for output in DVI-I -> VGA mode. */
-	intel_output->ddc_bus =
+	intel_encoder->ddc_bus =
 		intel_i2c_create(connector->dev, GPIOD, "CRTDDC_D");
 
-	if (!intel_output->ddc_bus) {
-		intel_output->ddc_bus = ddcbus;
+	if (!intel_encoder->ddc_bus) {
+		intel_encoder->ddc_bus = ddcbus;
 		dev_printk(KERN_ERR, &connector->dev->pdev->dev,
 			   "DDC bus registration failed for CRTDDC_D.\n");
 		goto end;
 	}
 	/* Try to get modes by GPIOD port */
-	ret = intel_ddc_get_modes(intel_output);
+	ret = intel_ddc_get_modes(intel_encoder);
 	intel_i2c_destroy(ddcbus);
 
 end:
@@ -505,23 +505,23 @@ static const struct drm_encoder_funcs intel_crt_enc_funcs = {
 void intel_crt_init(struct drm_device *dev)
 {
 	struct drm_connector *connector;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 i2c_reg;
 
-	intel_output = kzalloc(sizeof(struct intel_output), GFP_KERNEL);
-	if (!intel_output)
+	intel_encoder = kzalloc(sizeof(struct intel_encoder), GFP_KERNEL);
+	if (!intel_encoder)
 		return;
 
-	connector = &intel_output->base;
-	drm_connector_init(dev, &intel_output->base,
+	connector = &intel_encoder->base;
+	drm_connector_init(dev, &intel_encoder->base,
 			   &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
 
-	drm_encoder_init(dev, &intel_output->enc, &intel_crt_enc_funcs,
+	drm_encoder_init(dev, &intel_encoder->enc, &intel_crt_enc_funcs,
 			 DRM_MODE_ENCODER_DAC);
 
-	drm_mode_connector_attach_encoder(&intel_output->base,
-					  &intel_output->enc);
+	drm_mode_connector_attach_encoder(&intel_encoder->base,
+					  &intel_encoder->enc);
 
 	/* Set up the DDC bus. */
 	if (HAS_PCH_SPLIT(dev))
@@ -532,22 +532,22 @@ void intel_crt_init(struct drm_device *dev)
 		if (dev_priv->crt_ddc_bus != 0)
 			i2c_reg = dev_priv->crt_ddc_bus;
 	}
-	intel_output->ddc_bus = intel_i2c_create(dev, i2c_reg, "CRTDDC_A");
-	if (!intel_output->ddc_bus) {
+	intel_encoder->ddc_bus = intel_i2c_create(dev, i2c_reg, "CRTDDC_A");
+	if (!intel_encoder->ddc_bus) {
 		dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration "
 			   "failed.\n");
 		return;
 	}
 
-	intel_output->type = INTEL_OUTPUT_ANALOG;
-	intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
+	intel_encoder->type = INTEL_OUTPUT_ANALOG;
+	intel_encoder->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
 				   (1 << INTEL_ANALOG_CLONE_BIT) |
 				   (1 << INTEL_SDVO_LVDS_CLONE_BIT);
-	intel_output->crtc_mask = (1 << 0) | (1 << 1);
+	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 	connector->interlace_allowed = 0;
 	connector->doublescan_allowed = 0;
 
-	drm_encoder_helper_add(&intel_output->enc, &intel_crt_helper_funcs);
+	drm_encoder_helper_add(&intel_encoder->enc, &intel_crt_helper_funcs);
 	drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs);
 
 	drm_sysfs_connector_add(connector);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 7adb3a54aac69..2595c4ccc6a88 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -746,8 +746,8 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
     list_for_each_entry(l_entry, &mode_config->connector_list, head) {
 	    if (l_entry->encoder &&
 	        l_entry->encoder->crtc == crtc) {
-		    struct intel_output *intel_output = to_intel_output(l_entry);
-		    if (intel_output->type == type)
+		    struct intel_encoder *intel_encoder = to_intel_encoder(l_entry);
+		    if (intel_encoder->type == type)
 			    return true;
 	    }
     }
@@ -2942,19 +2942,19 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 	drm_vblank_pre_modeset(dev, pipe);
 
 	list_for_each_entry(connector, &mode_config->connector_list, head) {
-		struct intel_output *intel_output = to_intel_output(connector);
+		struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
 		if (!connector->encoder || connector->encoder->crtc != crtc)
 			continue;
 
-		switch (intel_output->type) {
+		switch (intel_encoder->type) {
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
 		case INTEL_OUTPUT_SDVO:
 		case INTEL_OUTPUT_HDMI:
 			is_sdvo = true;
-			if (intel_output->needs_tv_clock)
+			if (intel_encoder->needs_tv_clock)
 				is_tv = true;
 			break;
 		case INTEL_OUTPUT_DVO:
@@ -3049,7 +3049,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 			struct drm_connector *edp;
 			target_clock = mode->clock;
 			edp = intel_pipe_get_output(crtc);
-			intel_edp_link_config(to_intel_output(edp),
+			intel_edp_link_config(to_intel_encoder(edp),
 					&lane, &link_bw);
 		} else {
 			/* DP over FDI requires target mode clock
@@ -3669,14 +3669,14 @@ static struct drm_display_mode load_detect_mode = {
 		 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
 };
 
-struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output,
+struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 					    struct drm_display_mode *mode,
 					    int *dpms_mode)
 {
 	struct intel_crtc *intel_crtc;
 	struct drm_crtc *possible_crtc;
 	struct drm_crtc *supported_crtc =NULL;
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	struct drm_crtc *crtc = NULL;
 	struct drm_device *dev = encoder->dev;
 	struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
@@ -3728,8 +3728,8 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output,
 	}
 
 	encoder->crtc = crtc;
-	intel_output->base.encoder = encoder;
-	intel_output->load_detect_temp = true;
+	intel_encoder->base.encoder = encoder;
+	intel_encoder->load_detect_temp = true;
 
 	intel_crtc = to_intel_crtc(crtc);
 	*dpms_mode = intel_crtc->dpms_mode;
@@ -3754,18 +3754,18 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output,
 	return crtc;
 }
 
-void intel_release_load_detect_pipe(struct intel_output *intel_output, int dpms_mode)
+void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, int dpms_mode)
 {
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	struct drm_device *dev = encoder->dev;
 	struct drm_crtc *crtc = encoder->crtc;
 	struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
 	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
 
-	if (intel_output->load_detect_temp) {
+	if (intel_encoder->load_detect_temp) {
 		encoder->crtc = NULL;
-		intel_output->base.encoder = NULL;
-		intel_output->load_detect_temp = false;
+		intel_encoder->base.encoder = NULL;
+		intel_encoder->load_detect_temp = false;
 		crtc->enabled = drm_helper_crtc_in_use(crtc);
 		drm_helper_disable_unused_functions(dev);
 	}
@@ -4398,8 +4398,8 @@ static int intel_connector_clones(struct drm_device *dev, int type_mask)
 	int entry = 0;
 
         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		struct intel_output *intel_output = to_intel_output(connector);
-		if (type_mask & intel_output->clone_mask)
+		struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+		if (type_mask & intel_encoder->clone_mask)
 			index_mask |= (1 << entry);
 		entry++;
 	}
@@ -4494,12 +4494,12 @@ static void intel_setup_outputs(struct drm_device *dev)
 		intel_tv_init(dev);
 
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		struct intel_output *intel_output = to_intel_output(connector);
-		struct drm_encoder *encoder = &intel_output->enc;
+		struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+		struct drm_encoder *encoder = &intel_encoder->enc;
 
-		encoder->possible_crtcs = intel_output->crtc_mask;
+		encoder->possible_crtcs = intel_encoder->crtc_mask;
 		encoder->possible_clones = intel_connector_clones(dev,
-						intel_output->clone_mask);
+						intel_encoder->clone_mask);
 	}
 }
 
@@ -4977,9 +4977,9 @@ void intel_modeset_cleanup(struct drm_device *dev)
 */
 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
-	return &intel_output->enc;
+	return &intel_encoder->enc;
 }
 
 /*
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 3ef3a0d0edd0a..0a7e3264dac21 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -54,23 +54,23 @@ struct intel_dp_priv {
 	uint8_t link_bw;
 	uint8_t lane_count;
 	uint8_t dpcd[4];
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct i2c_adapter adapter;
 	struct i2c_algo_dp_aux_data algo;
 };
 
 static void
-intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
+intel_dp_link_train(struct intel_encoder *intel_encoder, uint32_t DP,
 		    uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE]);
 
 static void
-intel_dp_link_down(struct intel_output *intel_output, uint32_t DP);
+intel_dp_link_down(struct intel_encoder *intel_encoder, uint32_t DP);
 
 void
-intel_edp_link_config (struct intel_output *intel_output,
+intel_edp_link_config (struct intel_encoder *intel_encoder,
 		int *lane_num, int *link_bw)
 {
-	struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv   *dp_priv = intel_encoder->dev_priv;
 
 	*lane_num = dp_priv->lane_count;
 	if (dp_priv->link_bw == DP_LINK_BW_1_62)
@@ -80,9 +80,9 @@ intel_edp_link_config (struct intel_output *intel_output,
 }
 
 static int
-intel_dp_max_lane_count(struct intel_output *intel_output)
+intel_dp_max_lane_count(struct intel_encoder *intel_encoder)
 {
-	struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv   *dp_priv = intel_encoder->dev_priv;
 	int max_lane_count = 4;
 
 	if (dp_priv->dpcd[0] >= 0x11) {
@@ -98,9 +98,9 @@ intel_dp_max_lane_count(struct intel_output *intel_output)
 }
 
 static int
-intel_dp_max_link_bw(struct intel_output *intel_output)
+intel_dp_max_link_bw(struct intel_encoder *intel_encoder)
 {
-	struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv   *dp_priv = intel_encoder->dev_priv;
 	int max_link_bw = dp_priv->dpcd[1];
 
 	switch (max_link_bw) {
@@ -126,11 +126,11 @@ intel_dp_link_clock(uint8_t link_bw)
 /* I think this is a fiction */
 static int
 intel_dp_link_required(struct drm_device *dev,
-		       struct intel_output *intel_output, int pixel_clock)
+		       struct intel_encoder *intel_encoder, int pixel_clock)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	if (IS_eDP(intel_output))
+	if (IS_eDP(intel_encoder))
 		return (pixel_clock * dev_priv->edp_bpp) / 8;
 	else
 		return pixel_clock * 3;
@@ -140,11 +140,11 @@ static int
 intel_dp_mode_valid(struct drm_connector *connector,
 		    struct drm_display_mode *mode)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_output));
-	int max_lanes = intel_dp_max_lane_count(intel_output);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_encoder));
+	int max_lanes = intel_dp_max_lane_count(intel_encoder);
 
-	if (intel_dp_link_required(connector->dev, intel_output, mode->clock)
+	if (intel_dp_link_required(connector->dev, intel_encoder, mode->clock)
 			> max_link_clock * max_lanes)
 		return MODE_CLOCK_HIGH;
 
@@ -208,13 +208,13 @@ intel_hrawclk(struct drm_device *dev)
 }
 
 static int
-intel_dp_aux_ch(struct intel_output *intel_output,
+intel_dp_aux_ch(struct intel_encoder *intel_encoder,
 		uint8_t *send, int send_bytes,
 		uint8_t *recv, int recv_size)
 {
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 	uint32_t output_reg = dp_priv->output_reg;
-	struct drm_device *dev = intel_output->base.dev;
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t ch_ctl = output_reg + 0x10;
 	uint32_t ch_data = ch_ctl + 4;
@@ -229,7 +229,7 @@ intel_dp_aux_ch(struct intel_output *intel_output,
 	 * and would like to run at 2MHz. So, take the
 	 * hrawclk value and divide by 2 and use that
 	 */
-	if (IS_eDP(intel_output))
+	if (IS_eDP(intel_encoder))
 		aux_clock_divider = 225; /* eDP input clock at 450Mhz */
 	else if (HAS_PCH_SPLIT(dev))
 		aux_clock_divider = 62; /* IRL input clock fixed at 125Mhz */
@@ -312,7 +312,7 @@ intel_dp_aux_ch(struct intel_output *intel_output,
 
 /* Write data to the aux channel in native mode */
 static int
-intel_dp_aux_native_write(struct intel_output *intel_output,
+intel_dp_aux_native_write(struct intel_encoder *intel_encoder,
 			  uint16_t address, uint8_t *send, int send_bytes)
 {
 	int ret;
@@ -329,7 +329,7 @@ intel_dp_aux_native_write(struct intel_output *intel_output,
 	memcpy(&msg[4], send, send_bytes);
 	msg_bytes = send_bytes + 4;
 	for (;;) {
-		ret = intel_dp_aux_ch(intel_output, msg, msg_bytes, &ack, 1);
+		ret = intel_dp_aux_ch(intel_encoder, msg, msg_bytes, &ack, 1);
 		if (ret < 0)
 			return ret;
 		if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
@@ -344,15 +344,15 @@ intel_dp_aux_native_write(struct intel_output *intel_output,
 
 /* Write a single byte to the aux channel in native mode */
 static int
-intel_dp_aux_native_write_1(struct intel_output *intel_output,
+intel_dp_aux_native_write_1(struct intel_encoder *intel_encoder,
 			    uint16_t address, uint8_t byte)
 {
-	return intel_dp_aux_native_write(intel_output, address, &byte, 1);
+	return intel_dp_aux_native_write(intel_encoder, address, &byte, 1);
 }
 
 /* read bytes from a native aux channel */
 static int
-intel_dp_aux_native_read(struct intel_output *intel_output,
+intel_dp_aux_native_read(struct intel_encoder *intel_encoder,
 			 uint16_t address, uint8_t *recv, int recv_bytes)
 {
 	uint8_t msg[4];
@@ -371,7 +371,7 @@ intel_dp_aux_native_read(struct intel_output *intel_output,
 	reply_bytes = recv_bytes + 1;
 
 	for (;;) {
-		ret = intel_dp_aux_ch(intel_output, msg, msg_bytes,
+		ret = intel_dp_aux_ch(intel_encoder, msg, msg_bytes,
 				      reply, reply_bytes);
 		if (ret == 0)
 			return -EPROTO;
@@ -397,7 +397,7 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
 	struct intel_dp_priv *dp_priv = container_of(adapter,
 						     struct intel_dp_priv,
 						     adapter);
-	struct intel_output *intel_output = dp_priv->intel_output;
+	struct intel_encoder *intel_encoder = dp_priv->intel_encoder;
 	uint16_t address = algo_data->address;
 	uint8_t msg[5];
 	uint8_t reply[2];
@@ -436,7 +436,7 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
 	}
 
 	for (;;) {
-	  ret = intel_dp_aux_ch(intel_output,
+	  ret = intel_dp_aux_ch(intel_encoder,
 				msg, msg_bytes,
 				reply, reply_bytes);
 		if (ret < 0) {
@@ -464,9 +464,9 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
 }
 
 static int
-intel_dp_i2c_init(struct intel_output *intel_output, const char *name)
+intel_dp_i2c_init(struct intel_encoder *intel_encoder, const char *name)
 {
-	struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv   *dp_priv = intel_encoder->dev_priv;
 
 	DRM_DEBUG_KMS("i2c_init %s\n", name);
 	dp_priv->algo.running = false;
@@ -479,7 +479,7 @@ intel_dp_i2c_init(struct intel_output *intel_output, const char *name)
 	strncpy (dp_priv->adapter.name, name, sizeof(dp_priv->adapter.name) - 1);
 	dp_priv->adapter.name[sizeof(dp_priv->adapter.name) - 1] = '\0';
 	dp_priv->adapter.algo_data = &dp_priv->algo;
-	dp_priv->adapter.dev.parent = &intel_output->base.kdev;
+	dp_priv->adapter.dev.parent = &intel_encoder->base.kdev;
 	
 	return i2c_dp_aux_add_bus(&dp_priv->adapter);
 }
@@ -488,18 +488,18 @@ static bool
 intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
 		    struct drm_display_mode *adjusted_mode)
 {
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_dp_priv   *dp_priv = intel_encoder->dev_priv;
 	int lane_count, clock;
-	int max_lane_count = intel_dp_max_lane_count(intel_output);
-	int max_clock = intel_dp_max_link_bw(intel_output) == DP_LINK_BW_2_7 ? 1 : 0;
+	int max_lane_count = intel_dp_max_lane_count(intel_encoder);
+	int max_clock = intel_dp_max_link_bw(intel_encoder) == DP_LINK_BW_2_7 ? 1 : 0;
 	static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
 
 	for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
 		for (clock = 0; clock <= max_clock; clock++) {
 			int link_avail = intel_dp_link_clock(bws[clock]) * lane_count;
 
-			if (intel_dp_link_required(encoder->dev, intel_output, mode->clock)
+			if (intel_dp_link_required(encoder->dev, intel_encoder, mode->clock)
 					<= link_avail) {
 				dp_priv->link_bw = bws[clock];
 				dp_priv->lane_count = lane_count;
@@ -561,16 +561,16 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
 	struct intel_dp_m_n m_n;
 
 	/*
-	 * Find the lane count in the intel_output private
+	 * Find the lane count in the intel_encoder private
 	 */
 	list_for_each_entry(connector, &mode_config->connector_list, head) {
-		struct intel_output *intel_output = to_intel_output(connector);
-		struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+		struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+		struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 
 		if (!connector->encoder || connector->encoder->crtc != crtc)
 			continue;
 
-		if (intel_output->type == INTEL_OUTPUT_DISPLAYPORT) {
+		if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT) {
 			lane_count = dp_priv->lane_count;
 			break;
 		}
@@ -625,9 +625,9 @@ static void
 intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 		  struct drm_display_mode *adjusted_mode)
 {
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
-	struct drm_crtc *crtc = intel_output->enc.crtc;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
+	struct drm_crtc *crtc = intel_encoder->enc.crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 
 	dp_priv->DP = (DP_LINK_TRAIN_OFF |
@@ -666,7 +666,7 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 	if (intel_crtc->pipe == 1)
 		dp_priv->DP |= DP_PIPEB_SELECT;
 
-	if (IS_eDP(intel_output)) {
+	if (IS_eDP(intel_encoder)) {
 		/* don't miss out required setting for eDP */
 		dp_priv->DP |= DP_PLL_ENABLE;
 		if (adjusted_mode->clock < 200000)
@@ -701,22 +701,22 @@ static void ironlake_edp_backlight_off (struct drm_device *dev)
 static void
 intel_dp_dpms(struct drm_encoder *encoder, int mode)
 {
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
-	struct drm_device *dev = intel_output->base.dev;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t dp_reg = I915_READ(dp_priv->output_reg);
 
 	if (mode != DRM_MODE_DPMS_ON) {
 		if (dp_reg & DP_PORT_EN) {
-			intel_dp_link_down(intel_output, dp_priv->DP);
-			if (IS_eDP(intel_output))
+			intel_dp_link_down(intel_encoder, dp_priv->DP);
+			if (IS_eDP(intel_encoder))
 				ironlake_edp_backlight_off(dev);
 		}
 	} else {
 		if (!(dp_reg & DP_PORT_EN)) {
-			intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration);
-			if (IS_eDP(intel_output))
+			intel_dp_link_train(intel_encoder, dp_priv->DP, dp_priv->link_configuration);
+			if (IS_eDP(intel_encoder))
 				ironlake_edp_backlight_on(dev);
 		}
 	}
@@ -728,12 +728,12 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode)
  * link status information
  */
 static bool
-intel_dp_get_link_status(struct intel_output *intel_output,
+intel_dp_get_link_status(struct intel_encoder *intel_encoder,
 			 uint8_t link_status[DP_LINK_STATUS_SIZE])
 {
 	int ret;
 
-	ret = intel_dp_aux_native_read(intel_output,
+	ret = intel_dp_aux_native_read(intel_encoder,
 				       DP_LANE0_1_STATUS,
 				       link_status, DP_LINK_STATUS_SIZE);
 	if (ret != DP_LINK_STATUS_SIZE)
@@ -751,13 +751,13 @@ intel_dp_link_status(uint8_t link_status[DP_LINK_STATUS_SIZE],
 static void
 intel_dp_save(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct drm_device *dev = intel_output->base.dev;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 
 	dp_priv->save_DP = I915_READ(dp_priv->output_reg);
-	intel_dp_aux_native_read(intel_output, DP_LINK_BW_SET,
+	intel_dp_aux_native_read(intel_encoder, DP_LINK_BW_SET,
 				 dp_priv->save_link_configuration,
 				 sizeof (dp_priv->save_link_configuration));
 }
@@ -824,7 +824,7 @@ intel_dp_pre_emphasis_max(uint8_t voltage_swing)
 }
 
 static void
-intel_get_adjust_train(struct intel_output *intel_output,
+intel_get_adjust_train(struct intel_encoder *intel_encoder,
 		       uint8_t link_status[DP_LINK_STATUS_SIZE],
 		       int lane_count,
 		       uint8_t train_set[4])
@@ -941,15 +941,15 @@ intel_channel_eq_ok(uint8_t link_status[DP_LINK_STATUS_SIZE], int lane_count)
 }
 
 static bool
-intel_dp_set_link_train(struct intel_output *intel_output,
+intel_dp_set_link_train(struct intel_encoder *intel_encoder,
 			uint32_t dp_reg_value,
 			uint8_t dp_train_pat,
 			uint8_t train_set[4],
 			bool first)
 {
-	struct drm_device *dev = intel_output->base.dev;
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 	int ret;
 
 	I915_WRITE(dp_priv->output_reg, dp_reg_value);
@@ -957,11 +957,11 @@ intel_dp_set_link_train(struct intel_output *intel_output,
 	if (first)
 		intel_wait_for_vblank(dev);
 
-	intel_dp_aux_native_write_1(intel_output,
+	intel_dp_aux_native_write_1(intel_encoder,
 				    DP_TRAINING_PATTERN_SET,
 				    dp_train_pat);
 
-	ret = intel_dp_aux_native_write(intel_output,
+	ret = intel_dp_aux_native_write(intel_encoder,
 					DP_TRAINING_LANE0_SET, train_set, 4);
 	if (ret != 4)
 		return false;
@@ -970,12 +970,12 @@ intel_dp_set_link_train(struct intel_output *intel_output,
 }
 
 static void
-intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
+intel_dp_link_train(struct intel_encoder *intel_encoder, uint32_t DP,
 		    uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE])
 {
-	struct drm_device *dev = intel_output->base.dev;
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 	uint8_t	train_set[4];
 	uint8_t link_status[DP_LINK_STATUS_SIZE];
 	int i;
@@ -986,7 +986,7 @@ intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
 	int tries;
 
 	/* Write the link configuration data */
-	intel_dp_aux_native_write(intel_output, 0x100,
+	intel_dp_aux_native_write(intel_encoder, 0x100,
 				  link_configuration, DP_LINK_CONFIGURATION_SIZE);
 
 	DP |= DP_PORT_EN;
@@ -1000,14 +1000,14 @@ intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
 		uint32_t    signal_levels = intel_dp_signal_levels(train_set[0], dp_priv->lane_count);
 		DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
 
-		if (!intel_dp_set_link_train(intel_output, DP | DP_LINK_TRAIN_PAT_1,
+		if (!intel_dp_set_link_train(intel_encoder, DP | DP_LINK_TRAIN_PAT_1,
 					     DP_TRAINING_PATTERN_1, train_set, first))
 			break;
 		first = false;
 		/* Set training pattern 1 */
 
 		udelay(100);
-		if (!intel_dp_get_link_status(intel_output, link_status))
+		if (!intel_dp_get_link_status(intel_encoder, link_status))
 			break;
 
 		if (intel_clock_recovery_ok(link_status, dp_priv->lane_count)) {
@@ -1032,7 +1032,7 @@ intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
 		voltage = train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
 
 		/* Compute new train_set as requested by target */
-		intel_get_adjust_train(intel_output, link_status, dp_priv->lane_count, train_set);
+		intel_get_adjust_train(intel_encoder, link_status, dp_priv->lane_count, train_set);
 	}
 
 	/* channel equalization */
@@ -1044,13 +1044,13 @@ intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
 		DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
 
 		/* channel eq pattern */
-		if (!intel_dp_set_link_train(intel_output, DP | DP_LINK_TRAIN_PAT_2,
+		if (!intel_dp_set_link_train(intel_encoder, DP | DP_LINK_TRAIN_PAT_2,
 					     DP_TRAINING_PATTERN_2, train_set,
 					     false))
 			break;
 
 		udelay(400);
-		if (!intel_dp_get_link_status(intel_output, link_status))
+		if (!intel_dp_get_link_status(intel_encoder, link_status))
 			break;
 
 		if (intel_channel_eq_ok(link_status, dp_priv->lane_count)) {
@@ -1063,26 +1063,26 @@ intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
 			break;
 
 		/* Compute new train_set as requested by target */
-		intel_get_adjust_train(intel_output, link_status, dp_priv->lane_count, train_set);
+		intel_get_adjust_train(intel_encoder, link_status, dp_priv->lane_count, train_set);
 		++tries;
 	}
 
 	I915_WRITE(dp_priv->output_reg, DP | DP_LINK_TRAIN_OFF);
 	POSTING_READ(dp_priv->output_reg);
-	intel_dp_aux_native_write_1(intel_output,
+	intel_dp_aux_native_write_1(intel_encoder,
 				    DP_TRAINING_PATTERN_SET, DP_TRAINING_PATTERN_DISABLE);
 }
 
 static void
-intel_dp_link_down(struct intel_output *intel_output, uint32_t DP)
+intel_dp_link_down(struct intel_encoder *intel_encoder, uint32_t DP)
 {
-	struct drm_device *dev = intel_output->base.dev;
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 
 	DRM_DEBUG_KMS("\n");
 
-	if (IS_eDP(intel_output)) {
+	if (IS_eDP(intel_encoder)) {
 		DP &= ~DP_PLL_ENABLE;
 		I915_WRITE(dp_priv->output_reg, DP);
 		POSTING_READ(dp_priv->output_reg);
@@ -1095,7 +1095,7 @@ intel_dp_link_down(struct intel_output *intel_output, uint32_t DP)
 
 	udelay(17000);
 
-	if (IS_eDP(intel_output))
+	if (IS_eDP(intel_encoder))
 		DP |= DP_LINK_TRAIN_OFF;
 	I915_WRITE(dp_priv->output_reg, DP & ~DP_PORT_EN);
 	POSTING_READ(dp_priv->output_reg);
@@ -1104,13 +1104,13 @@ intel_dp_link_down(struct intel_output *intel_output, uint32_t DP)
 static void
 intel_dp_restore(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 
 	if (dp_priv->save_DP & DP_PORT_EN)
-		intel_dp_link_train(intel_output, dp_priv->save_DP, dp_priv->save_link_configuration);
+		intel_dp_link_train(intel_encoder, dp_priv->save_DP, dp_priv->save_link_configuration);
 	else
-		intel_dp_link_down(intel_output,  dp_priv->save_DP);
+		intel_dp_link_down(intel_encoder,  dp_priv->save_DP);
 }
 
 /*
@@ -1123,32 +1123,32 @@ intel_dp_restore(struct drm_connector *connector)
  */
 
 static void
-intel_dp_check_link_status(struct intel_output *intel_output)
+intel_dp_check_link_status(struct intel_encoder *intel_encoder)
 {
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 	uint8_t link_status[DP_LINK_STATUS_SIZE];
 
-	if (!intel_output->enc.crtc)
+	if (!intel_encoder->enc.crtc)
 		return;
 
-	if (!intel_dp_get_link_status(intel_output, link_status)) {
-		intel_dp_link_down(intel_output, dp_priv->DP);
+	if (!intel_dp_get_link_status(intel_encoder, link_status)) {
+		intel_dp_link_down(intel_encoder, dp_priv->DP);
 		return;
 	}
 
 	if (!intel_channel_eq_ok(link_status, dp_priv->lane_count))
-		intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration);
+		intel_dp_link_train(intel_encoder, dp_priv->DP, dp_priv->link_configuration);
 }
 
 static enum drm_connector_status
 ironlake_dp_detect(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 	enum drm_connector_status status;
 
 	status = connector_status_disconnected;
-	if (intel_dp_aux_native_read(intel_output,
+	if (intel_dp_aux_native_read(intel_encoder,
 				     0x000, dp_priv->dpcd,
 				     sizeof (dp_priv->dpcd)) == sizeof (dp_priv->dpcd))
 	{
@@ -1167,10 +1167,10 @@ ironlake_dp_detect(struct drm_connector *connector)
 static enum drm_connector_status
 intel_dp_detect(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct drm_device *dev = intel_output->base.dev;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 	uint32_t temp, bit;
 	enum drm_connector_status status;
 
@@ -1209,7 +1209,7 @@ intel_dp_detect(struct drm_connector *connector)
 		return connector_status_disconnected;
 
 	status = connector_status_disconnected;
-	if (intel_dp_aux_native_read(intel_output,
+	if (intel_dp_aux_native_read(intel_encoder,
 				     0x000, dp_priv->dpcd,
 				     sizeof (dp_priv->dpcd)) == sizeof (dp_priv->dpcd))
 	{
@@ -1221,20 +1221,20 @@ intel_dp_detect(struct drm_connector *connector)
 
 static int intel_dp_get_modes(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct drm_device *dev = intel_output->base.dev;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret;
 
 	/* We should parse the EDID data and find out if it has an audio sink
 	 */
 
-	ret = intel_ddc_get_modes(intel_output);
+	ret = intel_ddc_get_modes(intel_encoder);
 	if (ret)
 		return ret;
 
 	/* if eDP has no EDID, try to use fixed panel mode from VBT */
-	if (IS_eDP(intel_output)) {
+	if (IS_eDP(intel_encoder)) {
 		if (dev_priv->panel_fixed_mode != NULL) {
 			struct drm_display_mode *mode;
 			mode = drm_mode_duplicate(dev, dev_priv->panel_fixed_mode);
@@ -1248,13 +1248,13 @@ static int intel_dp_get_modes(struct drm_connector *connector)
 static void
 intel_dp_destroy (struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
-	if (intel_output->i2c_bus)
-		intel_i2c_destroy(intel_output->i2c_bus);
+	if (intel_encoder->i2c_bus)
+		intel_i2c_destroy(intel_encoder->i2c_bus);
 	drm_sysfs_connector_remove(connector);
 	drm_connector_cleanup(connector);
-	kfree(intel_output);
+	kfree(intel_encoder);
 }
 
 static const struct drm_encoder_helper_funcs intel_dp_helper_funcs = {
@@ -1290,12 +1290,12 @@ static const struct drm_encoder_funcs intel_dp_enc_funcs = {
 };
 
 void
-intel_dp_hot_plug(struct intel_output *intel_output)
+intel_dp_hot_plug(struct intel_encoder *intel_encoder)
 {
-	struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+	struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
 
 	if (dp_priv->dpms_mode == DRM_MODE_DPMS_ON)
-		intel_dp_check_link_status(intel_output);
+		intel_dp_check_link_status(intel_encoder);
 }
 
 void
@@ -1303,53 +1303,53 @@ intel_dp_init(struct drm_device *dev, int output_reg)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_connector *connector;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct intel_dp_priv *dp_priv;
 	const char *name = NULL;
 
-	intel_output = kcalloc(sizeof(struct intel_output) + 
+	intel_encoder = kcalloc(sizeof(struct intel_encoder) +
 			       sizeof(struct intel_dp_priv), 1, GFP_KERNEL);
-	if (!intel_output)
+	if (!intel_encoder)
 		return;
 
-	dp_priv = (struct intel_dp_priv *)(intel_output + 1);
+	dp_priv = (struct intel_dp_priv *)(intel_encoder + 1);
 
-	connector = &intel_output->base;
+	connector = &intel_encoder->base;
 	drm_connector_init(dev, connector, &intel_dp_connector_funcs,
 			   DRM_MODE_CONNECTOR_DisplayPort);
 	drm_connector_helper_add(connector, &intel_dp_connector_helper_funcs);
 
 	if (output_reg == DP_A)
-		intel_output->type = INTEL_OUTPUT_EDP;
+		intel_encoder->type = INTEL_OUTPUT_EDP;
 	else
-		intel_output->type = INTEL_OUTPUT_DISPLAYPORT;
+		intel_encoder->type = INTEL_OUTPUT_DISPLAYPORT;
 
 	if (output_reg == DP_B || output_reg == PCH_DP_B)
-		intel_output->clone_mask = (1 << INTEL_DP_B_CLONE_BIT);
+		intel_encoder->clone_mask = (1 << INTEL_DP_B_CLONE_BIT);
 	else if (output_reg == DP_C || output_reg == PCH_DP_C)
-		intel_output->clone_mask = (1 << INTEL_DP_C_CLONE_BIT);
+		intel_encoder->clone_mask = (1 << INTEL_DP_C_CLONE_BIT);
 	else if (output_reg == DP_D || output_reg == PCH_DP_D)
-		intel_output->clone_mask = (1 << INTEL_DP_D_CLONE_BIT);
+		intel_encoder->clone_mask = (1 << INTEL_DP_D_CLONE_BIT);
 
-	if (IS_eDP(intel_output))
-		intel_output->clone_mask = (1 << INTEL_EDP_CLONE_BIT);
+	if (IS_eDP(intel_encoder))
+		intel_encoder->clone_mask = (1 << INTEL_EDP_CLONE_BIT);
 
-	intel_output->crtc_mask = (1 << 0) | (1 << 1);
+	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 	connector->interlace_allowed = true;
 	connector->doublescan_allowed = 0;
 
-	dp_priv->intel_output = intel_output;
+	dp_priv->intel_encoder = intel_encoder;
 	dp_priv->output_reg = output_reg;
 	dp_priv->has_audio = false;
 	dp_priv->dpms_mode = DRM_MODE_DPMS_ON;
-	intel_output->dev_priv = dp_priv;
+	intel_encoder->dev_priv = dp_priv;
 
-	drm_encoder_init(dev, &intel_output->enc, &intel_dp_enc_funcs,
+	drm_encoder_init(dev, &intel_encoder->enc, &intel_dp_enc_funcs,
 			 DRM_MODE_ENCODER_TMDS);
-	drm_encoder_helper_add(&intel_output->enc, &intel_dp_helper_funcs);
+	drm_encoder_helper_add(&intel_encoder->enc, &intel_dp_helper_funcs);
 
-	drm_mode_connector_attach_encoder(&intel_output->base,
-					  &intel_output->enc);
+	drm_mode_connector_attach_encoder(&intel_encoder->base,
+					  &intel_encoder->enc);
 	drm_sysfs_connector_add(connector);
 
 	/* Set up the DDC bus. */
@@ -1377,10 +1377,10 @@ intel_dp_init(struct drm_device *dev, int output_reg)
 			break;
 	}
 
-	intel_dp_i2c_init(intel_output, name);
+	intel_dp_i2c_init(intel_encoder, name);
 
-	intel_output->ddc_bus = &dp_priv->adapter;
-	intel_output->hot_plug = intel_dp_hot_plug;
+	intel_encoder->ddc_bus = &dp_priv->adapter;
+	intel_encoder->hot_plug = intel_dp_hot_plug;
 
 	if (output_reg == DP_A) {
 		/* initialize panel mode from VBT if available for eDP */
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3a467ca578579..e30253755f12f 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -95,7 +95,7 @@ struct intel_framebuffer {
 };
 
 
-struct intel_output {
+struct intel_encoder {
 	struct drm_connector base;
 
 	struct drm_encoder enc;
@@ -105,7 +105,7 @@ struct intel_output {
 	bool load_detect_temp;
 	bool needs_tv_clock;
 	void *dev_priv;
-	void (*hot_plug)(struct intel_output *);
+	void (*hot_plug)(struct intel_encoder *);
 	int crtc_mask;
 	int clone_mask;
 };
@@ -152,15 +152,15 @@ struct intel_crtc {
 };
 
 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
-#define to_intel_output(x) container_of(x, struct intel_output, base)
-#define enc_to_intel_output(x) container_of(x, struct intel_output, enc)
+#define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
+#define enc_to_intel_encoder(x) container_of(x, struct intel_encoder, enc)
 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 
 struct i2c_adapter *intel_i2c_create(struct drm_device *dev, const u32 reg,
 				     const char *name);
 void intel_i2c_destroy(struct i2c_adapter *adapter);
-int intel_ddc_get_modes(struct intel_output *intel_output);
-extern bool intel_ddc_probe(struct intel_output *intel_output);
+int intel_ddc_get_modes(struct intel_encoder *intel_encoder);
+extern bool intel_ddc_probe(struct intel_encoder *intel_encoder);
 void intel_i2c_quirk_set(struct drm_device *dev, bool enable);
 void intel_i2c_reset_gmbus(struct drm_device *dev);
 
@@ -175,7 +175,7 @@ extern void intel_dp_init(struct drm_device *dev, int dp_reg);
 void
 intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
 		 struct drm_display_mode *adjusted_mode);
-extern void intel_edp_link_config (struct intel_output *, int *, int *);
+extern void intel_edp_link_config (struct intel_encoder *, int *, int *);
 
 
 extern int intel_panel_fitter_pipe (struct drm_device *dev);
@@ -191,10 +191,10 @@ int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 				struct drm_file *file_priv);
 extern void intel_wait_for_vblank(struct drm_device *dev);
 extern struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe);
-extern struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output,
+extern struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 						   struct drm_display_mode *mode,
 						   int *dpms_mode);
-extern void intel_release_load_detect_pipe(struct intel_output *intel_output,
+extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
 					   int dpms_mode);
 
 extern struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB);
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index a4d2606de778c..62282f34eba9c 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -79,8 +79,8 @@ static struct intel_dvo_device intel_dvo_devices[] = {
 static void intel_dvo_dpms(struct drm_encoder *encoder, int mode)
 {
 	struct drm_i915_private *dev_priv = encoder->dev->dev_private;
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 	u32 dvo_reg = dvo->dvo_reg;
 	u32 temp = I915_READ(dvo_reg);
 
@@ -98,8 +98,8 @@ static void intel_dvo_dpms(struct drm_encoder *encoder, int mode)
 static void intel_dvo_save(struct drm_connector *connector)
 {
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 
 	/* Each output should probably just save the registers it touches,
 	 * but for now, use more overkill.
@@ -114,8 +114,8 @@ static void intel_dvo_save(struct drm_connector *connector)
 static void intel_dvo_restore(struct drm_connector *connector)
 {
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 
 	dvo->dev_ops->restore(dvo);
 
@@ -127,8 +127,8 @@ static void intel_dvo_restore(struct drm_connector *connector)
 static int intel_dvo_mode_valid(struct drm_connector *connector,
 				struct drm_display_mode *mode)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 
 	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 		return MODE_NO_DBLESCAN;
@@ -149,8 +149,8 @@ static bool intel_dvo_mode_fixup(struct drm_encoder *encoder,
 				 struct drm_display_mode *mode,
 				 struct drm_display_mode *adjusted_mode)
 {
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 
 	/* If we have timings from the BIOS for the panel, put them in
 	 * to the adjusted mode.  The CRTC will be set up for this mode,
@@ -185,8 +185,8 @@ static void intel_dvo_mode_set(struct drm_encoder *encoder,
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 	int pipe = intel_crtc->pipe;
 	u32 dvo_val;
 	u32 dvo_reg = dvo->dvo_reg, dvo_srcdim_reg;
@@ -240,23 +240,23 @@ static void intel_dvo_mode_set(struct drm_encoder *encoder,
  */
 static enum drm_connector_status intel_dvo_detect(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 
 	return dvo->dev_ops->detect(dvo);
 }
 
 static int intel_dvo_get_modes(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 
 	/* We should probably have an i2c driver get_modes function for those
 	 * devices which will have a fixed set of modes determined by the chip
 	 * (TV-out, for example), but for now with just TMDS and LVDS,
 	 * that's not the case.
 	 */
-	intel_ddc_get_modes(intel_output);
+	intel_ddc_get_modes(intel_encoder);
 	if (!list_empty(&connector->probed_modes))
 		return 1;
 
@@ -274,8 +274,8 @@ static int intel_dvo_get_modes(struct drm_connector *connector)
 
 static void intel_dvo_destroy (struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 
 	if (dvo) {
 		if (dvo->dev_ops->destroy)
@@ -285,13 +285,13 @@ static void intel_dvo_destroy (struct drm_connector *connector)
 		/* no need, in i830_dvoices[] now */
 		//kfree(dvo);
 	}
-	if (intel_output->i2c_bus)
-		intel_i2c_destroy(intel_output->i2c_bus);
-	if (intel_output->ddc_bus)
-		intel_i2c_destroy(intel_output->ddc_bus);
+	if (intel_encoder->i2c_bus)
+		intel_i2c_destroy(intel_encoder->i2c_bus);
+	if (intel_encoder->ddc_bus)
+		intel_i2c_destroy(intel_encoder->ddc_bus);
 	drm_sysfs_connector_remove(connector);
 	drm_connector_cleanup(connector);
-	kfree(intel_output);
+	kfree(intel_encoder);
 }
 
 #ifdef RANDR_GET_CRTC_INTERFACE
@@ -299,8 +299,8 @@ static struct drm_crtc *intel_dvo_get_crtc(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 	int pipe = !!(I915_READ(dvo->dvo_reg) & SDVO_PIPE_B_SELECT);
 
 	return intel_pipe_to_crtc(pScrn, pipe);
@@ -351,8 +351,8 @@ intel_dvo_get_current_mode (struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_dvo_device *dvo = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_dvo_device *dvo = intel_encoder->dev_priv;
 	uint32_t dvo_reg = dvo->dvo_reg;
 	uint32_t dvo_val = I915_READ(dvo_reg);
 	struct drm_display_mode *mode = NULL;
@@ -382,24 +382,24 @@ intel_dvo_get_current_mode (struct drm_connector *connector)
 
 void intel_dvo_init(struct drm_device *dev)
 {
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct intel_dvo_device *dvo;
 	struct i2c_adapter *i2cbus = NULL;
 	int ret = 0;
 	int i;
 	int encoder_type = DRM_MODE_ENCODER_NONE;
-	intel_output = kzalloc (sizeof(struct intel_output), GFP_KERNEL);
-	if (!intel_output)
+	intel_encoder = kzalloc (sizeof(struct intel_encoder), GFP_KERNEL);
+	if (!intel_encoder)
 		return;
 
 	/* Set up the DDC bus */
-	intel_output->ddc_bus = intel_i2c_create(dev, GPIOD, "DVODDC_D");
-	if (!intel_output->ddc_bus)
+	intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOD, "DVODDC_D");
+	if (!intel_encoder->ddc_bus)
 		goto free_intel;
 
 	/* Now, try to find a controller */
 	for (i = 0; i < ARRAY_SIZE(intel_dvo_devices); i++) {
-		struct drm_connector *connector = &intel_output->base;
+		struct drm_connector *connector = &intel_encoder->base;
 		int gpio;
 
 		dvo = &intel_dvo_devices[i];
@@ -434,11 +434,11 @@ void intel_dvo_init(struct drm_device *dev)
 		if (!ret)
 			continue;
 
-		intel_output->type = INTEL_OUTPUT_DVO;
-		intel_output->crtc_mask = (1 << 0) | (1 << 1);
+		intel_encoder->type = INTEL_OUTPUT_DVO;
+		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 		switch (dvo->type) {
 		case INTEL_DVO_CHIP_TMDS:
-			intel_output->clone_mask =
+			intel_encoder->clone_mask =
 				(1 << INTEL_DVO_TMDS_CLONE_BIT) |
 				(1 << INTEL_ANALOG_CLONE_BIT);
 			drm_connector_init(dev, connector,
@@ -447,7 +447,7 @@ void intel_dvo_init(struct drm_device *dev)
 			encoder_type = DRM_MODE_ENCODER_TMDS;
 			break;
 		case INTEL_DVO_CHIP_LVDS:
-			intel_output->clone_mask =
+			intel_encoder->clone_mask =
 				(1 << INTEL_DVO_LVDS_CLONE_BIT);
 			drm_connector_init(dev, connector,
 					   &intel_dvo_connector_funcs,
@@ -462,16 +462,16 @@ void intel_dvo_init(struct drm_device *dev)
 		connector->interlace_allowed = false;
 		connector->doublescan_allowed = false;
 
-		intel_output->dev_priv = dvo;
-		intel_output->i2c_bus = i2cbus;
+		intel_encoder->dev_priv = dvo;
+		intel_encoder->i2c_bus = i2cbus;
 
-		drm_encoder_init(dev, &intel_output->enc,
+		drm_encoder_init(dev, &intel_encoder->enc,
 				 &intel_dvo_enc_funcs, encoder_type);
-		drm_encoder_helper_add(&intel_output->enc,
+		drm_encoder_helper_add(&intel_encoder->enc,
 				       &intel_dvo_helper_funcs);
 
-		drm_mode_connector_attach_encoder(&intel_output->base,
-						  &intel_output->enc);
+		drm_mode_connector_attach_encoder(&intel_encoder->base,
+						  &intel_encoder->enc);
 		if (dvo->type == INTEL_DVO_CHIP_LVDS) {
 			/* For our LVDS chipsets, we should hopefully be able
 			 * to dig the fixed panel mode out of the BIOS data.
@@ -489,10 +489,10 @@ void intel_dvo_init(struct drm_device *dev)
 		return;
 	}
 
-	intel_i2c_destroy(intel_output->ddc_bus);
+	intel_i2c_destroy(intel_encoder->ddc_bus);
 	/* Didn't find a chip, so tear down. */
 	if (i2cbus != NULL)
 		intel_i2c_destroy(i2cbus);
 free_intel:
-	kfree(intel_output);
+	kfree(intel_encoder);
 }
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index a30f8bfc19856..9777504afeb26 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -50,8 +50,8 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc = encoder->crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
 	u32 sdvox;
 
 	sdvox = SDVO_ENCODING_HDMI |
@@ -73,8 +73,8 @@ static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
 {
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
 	u32 temp;
 
 	temp = I915_READ(hdmi_priv->sdvox_reg);
@@ -109,8 +109,8 @@ static void intel_hdmi_save(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
 
 	hdmi_priv->save_SDVOX = I915_READ(hdmi_priv->sdvox_reg);
 }
@@ -119,8 +119,8 @@ static void intel_hdmi_restore(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
 
 	I915_WRITE(hdmi_priv->sdvox_reg, hdmi_priv->save_SDVOX);
 	POSTING_READ(hdmi_priv->sdvox_reg);
@@ -150,21 +150,21 @@ static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
 static enum drm_connector_status
 intel_hdmi_detect(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
 	struct edid *edid = NULL;
 	enum drm_connector_status status = connector_status_disconnected;
 
 	hdmi_priv->has_hdmi_sink = false;
-	edid = drm_get_edid(&intel_output->base,
-			    intel_output->ddc_bus);
+	edid = drm_get_edid(&intel_encoder->base,
+			    intel_encoder->ddc_bus);
 
 	if (edid) {
 		if (edid->input & DRM_EDID_INPUT_DIGITAL) {
 			status = connector_status_connected;
 			hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
 		}
-		intel_output->base.display_info.raw_edid = NULL;
+		intel_encoder->base.display_info.raw_edid = NULL;
 		kfree(edid);
 	}
 
@@ -173,24 +173,24 @@ intel_hdmi_detect(struct drm_connector *connector)
 
 static int intel_hdmi_get_modes(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
 	/* We should parse the EDID data and find out if it's an HDMI sink so
 	 * we can send audio to it.
 	 */
 
-	return intel_ddc_get_modes(intel_output);
+	return intel_ddc_get_modes(intel_encoder);
 }
 
 static void intel_hdmi_destroy(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
-	if (intel_output->i2c_bus)
-		intel_i2c_destroy(intel_output->i2c_bus);
+	if (intel_encoder->i2c_bus)
+		intel_i2c_destroy(intel_encoder->i2c_bus);
 	drm_sysfs_connector_remove(connector);
 	drm_connector_cleanup(connector);
-	kfree(intel_output);
+	kfree(intel_encoder);
 }
 
 static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = {
@@ -229,63 +229,63 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_connector *connector;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct intel_hdmi_priv *hdmi_priv;
 
-	intel_output = kcalloc(sizeof(struct intel_output) +
+	intel_encoder = kcalloc(sizeof(struct intel_encoder) +
 			       sizeof(struct intel_hdmi_priv), 1, GFP_KERNEL);
-	if (!intel_output)
+	if (!intel_encoder)
 		return;
-	hdmi_priv = (struct intel_hdmi_priv *)(intel_output + 1);
+	hdmi_priv = (struct intel_hdmi_priv *)(intel_encoder + 1);
 
-	connector = &intel_output->base;
+	connector = &intel_encoder->base;
 	drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
 			   DRM_MODE_CONNECTOR_HDMIA);
 	drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
 
-	intel_output->type = INTEL_OUTPUT_HDMI;
+	intel_encoder->type = INTEL_OUTPUT_HDMI;
 
 	connector->interlace_allowed = 0;
 	connector->doublescan_allowed = 0;
-	intel_output->crtc_mask = (1 << 0) | (1 << 1);
+	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 
 	/* Set up the DDC bus. */
 	if (sdvox_reg == SDVOB) {
-		intel_output->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
-		intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
+		intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
+		intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
 		dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
 	} else if (sdvox_reg == SDVOC) {
-		intel_output->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
-		intel_output->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
+		intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
+		intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
 		dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
 	} else if (sdvox_reg == HDMIB) {
-		intel_output->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
-		intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOE,
+		intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
+		intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOE,
 								"HDMIB");
 		dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
 	} else if (sdvox_reg == HDMIC) {
-		intel_output->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
-		intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOD,
+		intel_encoder->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
+		intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOD,
 								"HDMIC");
 		dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
 	} else if (sdvox_reg == HDMID) {
-		intel_output->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
-		intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOF,
+		intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
+		intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOF,
 								"HDMID");
 		dev_priv->hotplug_supported_mask |= HDMID_HOTPLUG_INT_STATUS;
 	}
-	if (!intel_output->ddc_bus)
+	if (!intel_encoder->ddc_bus)
 		goto err_connector;
 
 	hdmi_priv->sdvox_reg = sdvox_reg;
-	intel_output->dev_priv = hdmi_priv;
+	intel_encoder->dev_priv = hdmi_priv;
 
-	drm_encoder_init(dev, &intel_output->enc, &intel_hdmi_enc_funcs,
+	drm_encoder_init(dev, &intel_encoder->enc, &intel_hdmi_enc_funcs,
 			 DRM_MODE_ENCODER_TMDS);
-	drm_encoder_helper_add(&intel_output->enc, &intel_hdmi_helper_funcs);
+	drm_encoder_helper_add(&intel_encoder->enc, &intel_hdmi_helper_funcs);
 
-	drm_mode_connector_attach_encoder(&intel_output->base,
-					  &intel_output->enc);
+	drm_mode_connector_attach_encoder(&intel_encoder->base,
+					  &intel_encoder->enc);
 	drm_sysfs_connector_add(connector);
 
 	/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
@@ -301,7 +301,7 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
 
 err_connector:
 	drm_connector_cleanup(connector);
-	kfree(intel_output);
+	kfree(intel_encoder);
 
 	return;
 }
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 2b3fa7a3c0285..9d99ddca17ef7 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -238,8 +238,8 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
 	struct drm_encoder *tmp_encoder;
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_lvds_priv *lvds_priv = intel_encoder->dev_priv;
 	u32 pfit_control = 0, pfit_pgm_ratios = 0;
 	int left_border = 0, right_border = 0, top_border = 0;
 	int bottom_border = 0;
@@ -586,8 +586,8 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
 {
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_lvds_priv *lvds_priv = intel_encoder->dev_priv;
 
 	/*
 	 * The LVDS pin pair will already have been turned on in the
@@ -634,11 +634,11 @@ static enum drm_connector_status intel_lvds_detect(struct drm_connector *connect
 static int intel_lvds_get_modes(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret = 0;
 
-	ret = intel_ddc_get_modes(intel_output);
+	ret = intel_ddc_get_modes(intel_encoder);
 
 	if (ret)
 		return ret;
@@ -714,11 +714,11 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
 static void intel_lvds_destroy(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	if (intel_output->ddc_bus)
-		intel_i2c_destroy(intel_output->ddc_bus);
+	if (intel_encoder->ddc_bus)
+		intel_i2c_destroy(intel_encoder->ddc_bus);
 	if (dev_priv->lid_notifier.notifier_call)
 		acpi_lid_notifier_unregister(&dev_priv->lid_notifier);
 	drm_sysfs_connector_remove(connector);
@@ -731,13 +731,13 @@ static int intel_lvds_set_property(struct drm_connector *connector,
 				   uint64_t value)
 {
 	struct drm_device *dev = connector->dev;
-	struct intel_output *intel_output =
-			to_intel_output(connector);
+	struct intel_encoder *intel_encoder =
+			to_intel_encoder(connector);
 
 	if (property == dev->mode_config.scaling_mode_property &&
 				connector->encoder) {
 		struct drm_crtc *crtc = connector->encoder->crtc;
-		struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+		struct intel_lvds_priv *lvds_priv = intel_encoder->dev_priv;
 		if (value == DRM_MODE_SCALE_NONE) {
 			DRM_DEBUG_KMS("no scaling not supported\n");
 			return 0;
@@ -967,7 +967,7 @@ static int lvds_is_present_in_vbt(struct drm_device *dev)
 void intel_lvds_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct drm_connector *connector;
 	struct drm_encoder *encoder;
 	struct drm_display_mode *scan; /* *modes, *bios_mode; */
@@ -995,40 +995,40 @@ void intel_lvds_init(struct drm_device *dev)
 		gpio = PCH_GPIOC;
 	}
 
-	intel_output = kzalloc(sizeof(struct intel_output) +
+	intel_encoder = kzalloc(sizeof(struct intel_encoder) +
 				sizeof(struct intel_lvds_priv), GFP_KERNEL);
-	if (!intel_output) {
+	if (!intel_encoder) {
 		return;
 	}
 
-	connector = &intel_output->base;
-	encoder = &intel_output->enc;
-	drm_connector_init(dev, &intel_output->base, &intel_lvds_connector_funcs,
+	connector = &intel_encoder->base;
+	encoder = &intel_encoder->enc;
+	drm_connector_init(dev, &intel_encoder->base, &intel_lvds_connector_funcs,
 			   DRM_MODE_CONNECTOR_LVDS);
 
-	drm_encoder_init(dev, &intel_output->enc, &intel_lvds_enc_funcs,
+	drm_encoder_init(dev, &intel_encoder->enc, &intel_lvds_enc_funcs,
 			 DRM_MODE_ENCODER_LVDS);
 
-	drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
-	intel_output->type = INTEL_OUTPUT_LVDS;
+	drm_mode_connector_attach_encoder(&intel_encoder->base, &intel_encoder->enc);
+	intel_encoder->type = INTEL_OUTPUT_LVDS;
 
-	intel_output->clone_mask = (1 << INTEL_LVDS_CLONE_BIT);
-	intel_output->crtc_mask = (1 << 1);
+	intel_encoder->clone_mask = (1 << INTEL_LVDS_CLONE_BIT);
+	intel_encoder->crtc_mask = (1 << 1);
 	drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs);
 	drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs);
 	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
 	connector->interlace_allowed = false;
 	connector->doublescan_allowed = false;
 
-	lvds_priv = (struct intel_lvds_priv *)(intel_output + 1);
-	intel_output->dev_priv = lvds_priv;
+	lvds_priv = (struct intel_lvds_priv *)(intel_encoder + 1);
+	intel_encoder->dev_priv = lvds_priv;
 	/* create the scaling mode property */
 	drm_mode_create_scaling_mode_property(dev);
 	/*
 	 * the initial panel fitting mode will be FULL_SCREEN.
 	 */
 
-	drm_connector_attach_property(&intel_output->base,
+	drm_connector_attach_property(&intel_encoder->base,
 				      dev->mode_config.scaling_mode_property,
 				      DRM_MODE_SCALE_FULLSCREEN);
 	lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN;
@@ -1043,8 +1043,8 @@ void intel_lvds_init(struct drm_device *dev)
 	 */
 
 	/* Set up the DDC bus. */
-	intel_output->ddc_bus = intel_i2c_create(dev, gpio, "LVDSDDC_C");
-	if (!intel_output->ddc_bus) {
+	intel_encoder->ddc_bus = intel_i2c_create(dev, gpio, "LVDSDDC_C");
+	if (!intel_encoder->ddc_bus) {
 		dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration "
 			   "failed.\n");
 		goto failed;
@@ -1054,7 +1054,7 @@ void intel_lvds_init(struct drm_device *dev)
 	 * Attempt to get the fixed panel mode from DDC.  Assume that the
 	 * preferred mode is the right one.
 	 */
-	intel_ddc_get_modes(intel_output);
+	intel_ddc_get_modes(intel_encoder);
 
 	list_for_each_entry(scan, &connector->probed_modes, head) {
 		mutex_lock(&dev->mode_config.mutex);
@@ -1132,9 +1132,9 @@ void intel_lvds_init(struct drm_device *dev)
 
 failed:
 	DRM_DEBUG_KMS("No LVDS modes found, disabling.\n");
-	if (intel_output->ddc_bus)
-		intel_i2c_destroy(intel_output->ddc_bus);
+	if (intel_encoder->ddc_bus)
+		intel_i2c_destroy(intel_encoder->ddc_bus);
 	drm_connector_cleanup(connector);
 	drm_encoder_cleanup(encoder);
-	kfree(intel_output);
+	kfree(intel_encoder);
 }
diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c
index 67e2f4632a245..3111a1c2731f2 100644
--- a/drivers/gpu/drm/i915/intel_modes.c
+++ b/drivers/gpu/drm/i915/intel_modes.c
@@ -33,7 +33,7 @@
  * intel_ddc_probe
  *
  */
-bool intel_ddc_probe(struct intel_output *intel_output)
+bool intel_ddc_probe(struct intel_encoder *intel_encoder)
 {
 	u8 out_buf[] = { 0x0, 0x0};
 	u8 buf[2];
@@ -53,9 +53,9 @@ bool intel_ddc_probe(struct intel_output *intel_output)
 		}
 	};
 
-	intel_i2c_quirk_set(intel_output->base.dev, true);
-	ret = i2c_transfer(intel_output->ddc_bus, msgs, 2);
-	intel_i2c_quirk_set(intel_output->base.dev, false);
+	intel_i2c_quirk_set(intel_encoder->base.dev, true);
+	ret = i2c_transfer(intel_encoder->ddc_bus, msgs, 2);
+	intel_i2c_quirk_set(intel_encoder->base.dev, false);
 	if (ret == 2)
 		return true;
 
@@ -68,19 +68,19 @@ bool intel_ddc_probe(struct intel_output *intel_output)
  *
  * Fetch the EDID information from @connector using the DDC bus.
  */
-int intel_ddc_get_modes(struct intel_output *intel_output)
+int intel_ddc_get_modes(struct intel_encoder *intel_encoder)
 {
 	struct edid *edid;
 	int ret = 0;
 
-	intel_i2c_quirk_set(intel_output->base.dev, true);
-	edid = drm_get_edid(&intel_output->base, intel_output->ddc_bus);
-	intel_i2c_quirk_set(intel_output->base.dev, false);
+	intel_i2c_quirk_set(intel_encoder->base.dev, true);
+	edid = drm_get_edid(&intel_encoder->base, intel_encoder->ddc_bus);
+	intel_i2c_quirk_set(intel_encoder->base.dev, false);
 	if (edid) {
-		drm_mode_connector_update_edid_property(&intel_output->base,
+		drm_mode_connector_update_edid_property(&intel_encoder->base,
 							edid);
-		ret = drm_add_edid_modes(&intel_output->base, edid);
-		intel_output->base.display_info.raw_edid = NULL;
+		ret = drm_add_edid_modes(&intel_encoder->base, edid);
+		intel_encoder->base.display_info.raw_edid = NULL;
 		kfree(edid);
 	}
 
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 48daee5c9c63b..ea6de3b149540 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -161,18 +161,18 @@ struct intel_sdvo_priv {
 };
 
 static bool
-intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags);
+intel_sdvo_output_setup(struct intel_encoder *intel_encoder, uint16_t flags);
 
 /**
  * Writes the SDVOB or SDVOC with the given value, but always writes both
  * SDVOB and SDVOC to work around apparent hardware issues (according to
  * comments in the BIOS).
  */
-static void intel_sdvo_write_sdvox(struct intel_output *intel_output, u32 val)
+static void intel_sdvo_write_sdvox(struct intel_encoder *intel_encoder, u32 val)
 {
-	struct drm_device *dev = intel_output->base.dev;
+	struct drm_device *dev = intel_encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_sdvo_priv   *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv   *sdvo_priv = intel_encoder->dev_priv;
 	u32 bval = val, cval = val;
 	int i;
 
@@ -195,10 +195,10 @@ static void intel_sdvo_write_sdvox(struct intel_output *intel_output, u32 val)
 	}
 }
 
-static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
+static bool intel_sdvo_read_byte(struct intel_encoder *intel_encoder, u8 addr,
 				 u8 *ch)
 {
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	u8 out_buf[2];
 	u8 buf[2];
 	int ret;
@@ -221,7 +221,7 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
 	out_buf[0] = addr;
 	out_buf[1] = 0;
 
-	if ((ret = i2c_transfer(intel_output->i2c_bus, msgs, 2)) == 2)
+	if ((ret = i2c_transfer(intel_encoder->i2c_bus, msgs, 2)) == 2)
 	{
 		*ch = buf[0];
 		return true;
@@ -231,10 +231,10 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
 	return false;
 }
 
-static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr,
+static bool intel_sdvo_write_byte(struct intel_encoder *intel_encoder, int addr,
 				  u8 ch)
 {
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	u8 out_buf[2];
 	struct i2c_msg msgs[] = {
 		{
@@ -248,7 +248,7 @@ static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr,
 	out_buf[0] = addr;
 	out_buf[1] = ch;
 
-	if (i2c_transfer(intel_output->i2c_bus, msgs, 1) == 1)
+	if (i2c_transfer(intel_encoder->i2c_bus, msgs, 1) == 1)
 	{
 		return true;
 	}
@@ -355,10 +355,10 @@ static const struct _sdvo_cmd_name {
 #define SDVO_NAME(dev_priv) ((dev_priv)->output_device == SDVOB ? "SDVOB" : "SDVOC")
 #define SDVO_PRIV(output)   ((struct intel_sdvo_priv *) (output)->dev_priv)
 
-static void intel_sdvo_debug_write(struct intel_output *intel_output, u8 cmd,
+static void intel_sdvo_debug_write(struct intel_encoder *intel_encoder, u8 cmd,
 				   void *args, int args_len)
 {
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	int i;
 
 	DRM_DEBUG_KMS("%s: W: %02X ",
@@ -378,19 +378,19 @@ static void intel_sdvo_debug_write(struct intel_output *intel_output, u8 cmd,
 	DRM_LOG_KMS("\n");
 }
 
-static void intel_sdvo_write_cmd(struct intel_output *intel_output, u8 cmd,
+static void intel_sdvo_write_cmd(struct intel_encoder *intel_encoder, u8 cmd,
 				 void *args, int args_len)
 {
 	int i;
 
-	intel_sdvo_debug_write(intel_output, cmd, args, args_len);
+	intel_sdvo_debug_write(intel_encoder, cmd, args, args_len);
 
 	for (i = 0; i < args_len; i++) {
-		intel_sdvo_write_byte(intel_output, SDVO_I2C_ARG_0 - i,
+		intel_sdvo_write_byte(intel_encoder, SDVO_I2C_ARG_0 - i,
 				      ((u8*)args)[i]);
 	}
 
-	intel_sdvo_write_byte(intel_output, SDVO_I2C_OPCODE, cmd);
+	intel_sdvo_write_byte(intel_encoder, SDVO_I2C_OPCODE, cmd);
 }
 
 static const char *cmd_status_names[] = {
@@ -403,11 +403,11 @@ static const char *cmd_status_names[] = {
 	"Scaling not supported"
 };
 
-static void intel_sdvo_debug_response(struct intel_output *intel_output,
+static void intel_sdvo_debug_response(struct intel_encoder *intel_encoder,
 				      void *response, int response_len,
 				      u8 status)
 {
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	int i;
 
 	DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(sdvo_priv));
@@ -422,7 +422,7 @@ static void intel_sdvo_debug_response(struct intel_output *intel_output,
 	DRM_LOG_KMS("\n");
 }
 
-static u8 intel_sdvo_read_response(struct intel_output *intel_output,
+static u8 intel_sdvo_read_response(struct intel_encoder *intel_encoder,
 				   void *response, int response_len)
 {
 	int i;
@@ -432,16 +432,16 @@ static u8 intel_sdvo_read_response(struct intel_output *intel_output,
 	while (retry--) {
 		/* Read the command response */
 		for (i = 0; i < response_len; i++) {
-			intel_sdvo_read_byte(intel_output,
+			intel_sdvo_read_byte(intel_encoder,
 					     SDVO_I2C_RETURN_0 + i,
 					     &((u8 *)response)[i]);
 		}
 
 		/* read the return status */
-		intel_sdvo_read_byte(intel_output, SDVO_I2C_CMD_STATUS,
+		intel_sdvo_read_byte(intel_encoder, SDVO_I2C_CMD_STATUS,
 				     &status);
 
-		intel_sdvo_debug_response(intel_output, response, response_len,
+		intel_sdvo_debug_response(intel_encoder, response, response_len,
 					  status);
 		if (status != SDVO_CMD_STATUS_PENDING)
 			return status;
@@ -469,10 +469,10 @@ static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
  * another I2C transaction after issuing the DDC bus switch, it will be
  * switched to the internal SDVO register.
  */
-static void intel_sdvo_set_control_bus_switch(struct intel_output *intel_output,
+static void intel_sdvo_set_control_bus_switch(struct intel_encoder *intel_encoder,
 					      u8 target)
 {
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	u8 out_buf[2], cmd_buf[2], ret_value[2], ret;
 	struct i2c_msg msgs[] = {
 		{
@@ -496,10 +496,10 @@ static void intel_sdvo_set_control_bus_switch(struct intel_output *intel_output,
 		},
 	};
 
-	intel_sdvo_debug_write(intel_output, SDVO_CMD_SET_CONTROL_BUS_SWITCH,
+	intel_sdvo_debug_write(intel_encoder, SDVO_CMD_SET_CONTROL_BUS_SWITCH,
 					&target, 1);
 	/* write the DDC switch command argument */
-	intel_sdvo_write_byte(intel_output, SDVO_I2C_ARG_0, target);
+	intel_sdvo_write_byte(intel_encoder, SDVO_I2C_ARG_0, target);
 
 	out_buf[0] = SDVO_I2C_OPCODE;
 	out_buf[1] = SDVO_CMD_SET_CONTROL_BUS_SWITCH;
@@ -508,7 +508,7 @@ static void intel_sdvo_set_control_bus_switch(struct intel_output *intel_output,
 	ret_value[0] = 0;
 	ret_value[1] = 0;
 
-	ret = i2c_transfer(intel_output->i2c_bus, msgs, 3);
+	ret = i2c_transfer(intel_encoder->i2c_bus, msgs, 3);
 	if (ret != 3) {
 		/* failure in I2C transfer */
 		DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
@@ -522,7 +522,7 @@ static void intel_sdvo_set_control_bus_switch(struct intel_output *intel_output,
 	return;
 }
 
-static bool intel_sdvo_set_target_input(struct intel_output *intel_output, bool target_0, bool target_1)
+static bool intel_sdvo_set_target_input(struct intel_encoder *intel_encoder, bool target_0, bool target_1)
 {
 	struct intel_sdvo_set_target_input_args targets = {0};
 	u8 status;
@@ -533,10 +533,10 @@ static bool intel_sdvo_set_target_input(struct intel_output *intel_output, bool
 	if (target_1)
 		targets.target_1 = 1;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_SET_TARGET_INPUT, &targets,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_TARGET_INPUT, &targets,
 			     sizeof(targets));
 
-	status = intel_sdvo_read_response(intel_output, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
@@ -547,13 +547,13 @@ static bool intel_sdvo_set_target_input(struct intel_output *intel_output, bool
  * This function is making an assumption about the layout of the response,
  * which should be checked against the docs.
  */
-static bool intel_sdvo_get_trained_inputs(struct intel_output *intel_output, bool *input_1, bool *input_2)
+static bool intel_sdvo_get_trained_inputs(struct intel_encoder *intel_encoder, bool *input_1, bool *input_2)
 {
 	struct intel_sdvo_get_trained_inputs_response response;
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_TRAINED_INPUTS, NULL, 0);
-	status = intel_sdvo_read_response(intel_output, &response, sizeof(response));
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_TRAINED_INPUTS, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, &response, sizeof(response));
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
@@ -562,29 +562,29 @@ static bool intel_sdvo_get_trained_inputs(struct intel_output *intel_output, boo
 	return true;
 }
 
-static bool intel_sdvo_get_active_outputs(struct intel_output *intel_output,
+static bool intel_sdvo_get_active_outputs(struct intel_encoder *intel_encoder,
 					  u16 *outputs)
 {
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_ACTIVE_OUTPUTS, NULL, 0);
-	status = intel_sdvo_read_response(intel_output, outputs, sizeof(*outputs));
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_ACTIVE_OUTPUTS, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, outputs, sizeof(*outputs));
 
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
 
-static bool intel_sdvo_set_active_outputs(struct intel_output *intel_output,
+static bool intel_sdvo_set_active_outputs(struct intel_encoder *intel_encoder,
 					  u16 outputs)
 {
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_SET_ACTIVE_OUTPUTS, &outputs,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_ACTIVE_OUTPUTS, &outputs,
 			     sizeof(outputs));
-	status = intel_sdvo_read_response(intel_output, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
 
-static bool intel_sdvo_set_encoder_power_state(struct intel_output *intel_output,
+static bool intel_sdvo_set_encoder_power_state(struct intel_encoder *intel_encoder,
 					       int mode)
 {
 	u8 status, state = SDVO_ENCODER_STATE_ON;
@@ -604,24 +604,24 @@ static bool intel_sdvo_set_encoder_power_state(struct intel_output *intel_output
 		break;
 	}
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_SET_ENCODER_POWER_STATE, &state,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_ENCODER_POWER_STATE, &state,
 			     sizeof(state));
-	status = intel_sdvo_read_response(intel_output, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
 
-static bool intel_sdvo_get_input_pixel_clock_range(struct intel_output *intel_output,
+static bool intel_sdvo_get_input_pixel_clock_range(struct intel_encoder *intel_encoder,
 						   int *clock_min,
 						   int *clock_max)
 {
 	struct intel_sdvo_pixel_clock_range clocks;
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
 			     NULL, 0);
 
-	status = intel_sdvo_read_response(intel_output, &clocks, sizeof(clocks));
+	status = intel_sdvo_read_response(intel_encoder, &clocks, sizeof(clocks));
 
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
@@ -633,31 +633,31 @@ static bool intel_sdvo_get_input_pixel_clock_range(struct intel_output *intel_ou
 	return true;
 }
 
-static bool intel_sdvo_set_target_output(struct intel_output *intel_output,
+static bool intel_sdvo_set_target_output(struct intel_encoder *intel_encoder,
 					 u16 outputs)
 {
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_SET_TARGET_OUTPUT, &outputs,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_TARGET_OUTPUT, &outputs,
 			     sizeof(outputs));
 
-	status = intel_sdvo_read_response(intel_output, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
 
-static bool intel_sdvo_get_timing(struct intel_output *intel_output, u8 cmd,
+static bool intel_sdvo_get_timing(struct intel_encoder *intel_encoder, u8 cmd,
 				  struct intel_sdvo_dtd *dtd)
 {
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, cmd, NULL, 0);
-	status = intel_sdvo_read_response(intel_output, &dtd->part1,
+	intel_sdvo_write_cmd(intel_encoder, cmd, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, &dtd->part1,
 					  sizeof(dtd->part1));
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
-	intel_sdvo_write_cmd(intel_output, cmd + 1, NULL, 0);
-	status = intel_sdvo_read_response(intel_output, &dtd->part2,
+	intel_sdvo_write_cmd(intel_encoder, cmd + 1, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, &dtd->part2,
 					  sizeof(dtd->part2));
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
@@ -665,54 +665,54 @@ static bool intel_sdvo_get_timing(struct intel_output *intel_output, u8 cmd,
 	return true;
 }
 
-static bool intel_sdvo_get_input_timing(struct intel_output *intel_output,
+static bool intel_sdvo_get_input_timing(struct intel_encoder *intel_encoder,
 					 struct intel_sdvo_dtd *dtd)
 {
-	return intel_sdvo_get_timing(intel_output,
+	return intel_sdvo_get_timing(intel_encoder,
 				     SDVO_CMD_GET_INPUT_TIMINGS_PART1, dtd);
 }
 
-static bool intel_sdvo_get_output_timing(struct intel_output *intel_output,
+static bool intel_sdvo_get_output_timing(struct intel_encoder *intel_encoder,
 					 struct intel_sdvo_dtd *dtd)
 {
-	return intel_sdvo_get_timing(intel_output,
+	return intel_sdvo_get_timing(intel_encoder,
 				     SDVO_CMD_GET_OUTPUT_TIMINGS_PART1, dtd);
 }
 
-static bool intel_sdvo_set_timing(struct intel_output *intel_output, u8 cmd,
+static bool intel_sdvo_set_timing(struct intel_encoder *intel_encoder, u8 cmd,
 				  struct intel_sdvo_dtd *dtd)
 {
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, cmd, &dtd->part1, sizeof(dtd->part1));
-	status = intel_sdvo_read_response(intel_output, NULL, 0);
+	intel_sdvo_write_cmd(intel_encoder, cmd, &dtd->part1, sizeof(dtd->part1));
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
-	intel_sdvo_write_cmd(intel_output, cmd + 1, &dtd->part2, sizeof(dtd->part2));
-	status = intel_sdvo_read_response(intel_output, NULL, 0);
+	intel_sdvo_write_cmd(intel_encoder, cmd + 1, &dtd->part2, sizeof(dtd->part2));
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
 	return true;
 }
 
-static bool intel_sdvo_set_input_timing(struct intel_output *intel_output,
+static bool intel_sdvo_set_input_timing(struct intel_encoder *intel_encoder,
 					 struct intel_sdvo_dtd *dtd)
 {
-	return intel_sdvo_set_timing(intel_output,
+	return intel_sdvo_set_timing(intel_encoder,
 				     SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
 }
 
-static bool intel_sdvo_set_output_timing(struct intel_output *intel_output,
+static bool intel_sdvo_set_output_timing(struct intel_encoder *intel_encoder,
 					 struct intel_sdvo_dtd *dtd)
 {
-	return intel_sdvo_set_timing(intel_output,
+	return intel_sdvo_set_timing(intel_encoder,
 				     SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
 }
 
 static bool
-intel_sdvo_create_preferred_input_timing(struct intel_output *output,
+intel_sdvo_create_preferred_input_timing(struct intel_encoder *output,
 					 uint16_t clock,
 					 uint16_t width,
 					 uint16_t height)
@@ -741,7 +741,7 @@ intel_sdvo_create_preferred_input_timing(struct intel_output *output,
 	return true;
 }
 
-static bool intel_sdvo_get_preferred_input_timing(struct intel_output *output,
+static bool intel_sdvo_get_preferred_input_timing(struct intel_encoder *output,
 						  struct intel_sdvo_dtd *dtd)
 {
 	bool status;
@@ -765,12 +765,12 @@ static bool intel_sdvo_get_preferred_input_timing(struct intel_output *output,
 	return false;
 }
 
-static int intel_sdvo_get_clock_rate_mult(struct intel_output *intel_output)
+static int intel_sdvo_get_clock_rate_mult(struct intel_encoder *intel_encoder)
 {
 	u8 response, status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_CLOCK_RATE_MULT, NULL, 0);
-	status = intel_sdvo_read_response(intel_output, &response, 1);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_CLOCK_RATE_MULT, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, &response, 1);
 
 	if (status != SDVO_CMD_STATUS_SUCCESS) {
 		DRM_DEBUG_KMS("Couldn't get SDVO clock rate multiplier\n");
@@ -782,12 +782,12 @@ static int intel_sdvo_get_clock_rate_mult(struct intel_output *intel_output)
 	return response;
 }
 
-static bool intel_sdvo_set_clock_rate_mult(struct intel_output *intel_output, u8 val)
+static bool intel_sdvo_set_clock_rate_mult(struct intel_encoder *intel_encoder, u8 val)
 {
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
-	status = intel_sdvo_read_response(intel_output, NULL, 0);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
@@ -876,7 +876,7 @@ static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 		mode->flags |= DRM_MODE_FLAG_PVSYNC;
 }
 
-static bool intel_sdvo_get_supp_encode(struct intel_output *output,
+static bool intel_sdvo_get_supp_encode(struct intel_encoder *output,
 				       struct intel_sdvo_encode *encode)
 {
 	uint8_t status;
@@ -891,7 +891,7 @@ static bool intel_sdvo_get_supp_encode(struct intel_output *output,
 	return true;
 }
 
-static bool intel_sdvo_set_encode(struct intel_output *output, uint8_t mode)
+static bool intel_sdvo_set_encode(struct intel_encoder *output, uint8_t mode)
 {
 	uint8_t status;
 
@@ -901,7 +901,7 @@ static bool intel_sdvo_set_encode(struct intel_output *output, uint8_t mode)
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
 
-static bool intel_sdvo_set_colorimetry(struct intel_output *output,
+static bool intel_sdvo_set_colorimetry(struct intel_encoder *output,
 				       uint8_t mode)
 {
 	uint8_t status;
@@ -913,7 +913,7 @@ static bool intel_sdvo_set_colorimetry(struct intel_output *output,
 }
 
 #if 0
-static void intel_sdvo_dump_hdmi_buf(struct intel_output *output)
+static void intel_sdvo_dump_hdmi_buf(struct intel_encoder *output)
 {
 	int i, j;
 	uint8_t set_buf_index[2];
@@ -943,7 +943,7 @@ static void intel_sdvo_dump_hdmi_buf(struct intel_output *output)
 }
 #endif
 
-static void intel_sdvo_set_hdmi_buf(struct intel_output *output, int index,
+static void intel_sdvo_set_hdmi_buf(struct intel_encoder *output, int index,
 				uint8_t *data, int8_t size, uint8_t tx_rate)
 {
     uint8_t set_buf_index[2];
@@ -1033,7 +1033,7 @@ struct dip_infoframe {
 	} __attribute__ ((packed)) u;
 } __attribute__((packed));
 
-static void intel_sdvo_set_avi_infoframe(struct intel_output *output,
+static void intel_sdvo_set_avi_infoframe(struct intel_encoder *output,
 					 struct drm_display_mode * mode)
 {
 	struct dip_infoframe avi_if = {
@@ -1048,7 +1048,7 @@ static void intel_sdvo_set_avi_infoframe(struct intel_output *output,
 				SDVO_HBUF_TX_VSYNC);
 }
 
-static void intel_sdvo_set_tv_format(struct intel_output *output)
+static void intel_sdvo_set_tv_format(struct intel_encoder *output)
 {
 
 	struct intel_sdvo_tv_format format;
@@ -1078,7 +1078,7 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 				  struct drm_display_mode *mode,
 				  struct drm_display_mode *adjusted_mode)
 {
-	struct intel_output *output = enc_to_intel_output(encoder);
+	struct intel_encoder *output = enc_to_intel_encoder(encoder);
 	struct intel_sdvo_priv *dev_priv = output->dev_priv;
 
 	if (dev_priv->is_tv) {
@@ -1181,7 +1181,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc = encoder->crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_output *output = enc_to_intel_output(encoder);
+	struct intel_encoder *output = enc_to_intel_encoder(encoder);
 	struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
 	u32 sdvox = 0;
 	int sdvo_pixel_multiply;
@@ -1305,19 +1305,19 @@ static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
 {
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	u32 temp;
 
 	if (mode != DRM_MODE_DPMS_ON) {
-		intel_sdvo_set_active_outputs(intel_output, 0);
+		intel_sdvo_set_active_outputs(intel_encoder, 0);
 		if (0)
-			intel_sdvo_set_encoder_power_state(intel_output, mode);
+			intel_sdvo_set_encoder_power_state(intel_encoder, mode);
 
 		if (mode == DRM_MODE_DPMS_OFF) {
 			temp = I915_READ(sdvo_priv->output_device);
 			if ((temp & SDVO_ENABLE) != 0) {
-				intel_sdvo_write_sdvox(intel_output, temp & ~SDVO_ENABLE);
+				intel_sdvo_write_sdvox(intel_encoder, temp & ~SDVO_ENABLE);
 			}
 		}
 	} else {
@@ -1327,11 +1327,11 @@ static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
 
 		temp = I915_READ(sdvo_priv->output_device);
 		if ((temp & SDVO_ENABLE) == 0)
-			intel_sdvo_write_sdvox(intel_output, temp | SDVO_ENABLE);
+			intel_sdvo_write_sdvox(intel_encoder, temp | SDVO_ENABLE);
 		for (i = 0; i < 2; i++)
 		  intel_wait_for_vblank(dev);
 
-		status = intel_sdvo_get_trained_inputs(intel_output, &input1,
+		status = intel_sdvo_get_trained_inputs(intel_encoder, &input1,
 						       &input2);
 
 
@@ -1345,8 +1345,8 @@ static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
 		}
 
 		if (0)
-			intel_sdvo_set_encoder_power_state(intel_output, mode);
-		intel_sdvo_set_active_outputs(intel_output, sdvo_priv->controlled_output);
+			intel_sdvo_set_encoder_power_state(intel_encoder, mode);
+		intel_sdvo_set_active_outputs(intel_encoder, sdvo_priv->controlled_output);
 	}
 	return;
 }
@@ -1355,22 +1355,22 @@ static void intel_sdvo_save(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	int o;
 
-	sdvo_priv->save_sdvo_mult = intel_sdvo_get_clock_rate_mult(intel_output);
-	intel_sdvo_get_active_outputs(intel_output, &sdvo_priv->save_active_outputs);
+	sdvo_priv->save_sdvo_mult = intel_sdvo_get_clock_rate_mult(intel_encoder);
+	intel_sdvo_get_active_outputs(intel_encoder, &sdvo_priv->save_active_outputs);
 
 	if (sdvo_priv->caps.sdvo_inputs_mask & 0x1) {
-		intel_sdvo_set_target_input(intel_output, true, false);
-		intel_sdvo_get_input_timing(intel_output,
+		intel_sdvo_set_target_input(intel_encoder, true, false);
+		intel_sdvo_get_input_timing(intel_encoder,
 					    &sdvo_priv->save_input_dtd_1);
 	}
 
 	if (sdvo_priv->caps.sdvo_inputs_mask & 0x2) {
-		intel_sdvo_set_target_input(intel_output, false, true);
-		intel_sdvo_get_input_timing(intel_output,
+		intel_sdvo_set_target_input(intel_encoder, false, true);
+		intel_sdvo_get_input_timing(intel_encoder,
 					    &sdvo_priv->save_input_dtd_2);
 	}
 
@@ -1379,8 +1379,8 @@ static void intel_sdvo_save(struct drm_connector *connector)
 	        u16  this_output = (1 << o);
 		if (sdvo_priv->caps.output_flags & this_output)
 		{
-			intel_sdvo_set_target_output(intel_output, this_output);
-			intel_sdvo_get_output_timing(intel_output,
+			intel_sdvo_set_target_output(intel_encoder, this_output);
+			intel_sdvo_get_output_timing(intel_encoder,
 						     &sdvo_priv->save_output_dtd[o]);
 		}
 	}
@@ -1394,60 +1394,60 @@ static void intel_sdvo_save(struct drm_connector *connector)
 static void intel_sdvo_restore(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	int o;
 	int i;
 	bool input1, input2;
 	u8 status;
 
-	intel_sdvo_set_active_outputs(intel_output, 0);
+	intel_sdvo_set_active_outputs(intel_encoder, 0);
 
 	for (o = SDVO_OUTPUT_FIRST; o <= SDVO_OUTPUT_LAST; o++)
 	{
 		u16  this_output = (1 << o);
 		if (sdvo_priv->caps.output_flags & this_output) {
-			intel_sdvo_set_target_output(intel_output, this_output);
-			intel_sdvo_set_output_timing(intel_output, &sdvo_priv->save_output_dtd[o]);
+			intel_sdvo_set_target_output(intel_encoder, this_output);
+			intel_sdvo_set_output_timing(intel_encoder, &sdvo_priv->save_output_dtd[o]);
 		}
 	}
 
 	if (sdvo_priv->caps.sdvo_inputs_mask & 0x1) {
-		intel_sdvo_set_target_input(intel_output, true, false);
-		intel_sdvo_set_input_timing(intel_output, &sdvo_priv->save_input_dtd_1);
+		intel_sdvo_set_target_input(intel_encoder, true, false);
+		intel_sdvo_set_input_timing(intel_encoder, &sdvo_priv->save_input_dtd_1);
 	}
 
 	if (sdvo_priv->caps.sdvo_inputs_mask & 0x2) {
-		intel_sdvo_set_target_input(intel_output, false, true);
-		intel_sdvo_set_input_timing(intel_output, &sdvo_priv->save_input_dtd_2);
+		intel_sdvo_set_target_input(intel_encoder, false, true);
+		intel_sdvo_set_input_timing(intel_encoder, &sdvo_priv->save_input_dtd_2);
 	}
 
-	intel_sdvo_set_clock_rate_mult(intel_output, sdvo_priv->save_sdvo_mult);
+	intel_sdvo_set_clock_rate_mult(intel_encoder, sdvo_priv->save_sdvo_mult);
 
 	if (sdvo_priv->is_tv) {
 		/* XXX: Restore TV format/enhancements. */
 	}
 
-	intel_sdvo_write_sdvox(intel_output, sdvo_priv->save_SDVOX);
+	intel_sdvo_write_sdvox(intel_encoder, sdvo_priv->save_SDVOX);
 
 	if (sdvo_priv->save_SDVOX & SDVO_ENABLE)
 	{
 		for (i = 0; i < 2; i++)
 			intel_wait_for_vblank(dev);
-		status = intel_sdvo_get_trained_inputs(intel_output, &input1, &input2);
+		status = intel_sdvo_get_trained_inputs(intel_encoder, &input1, &input2);
 		if (status == SDVO_CMD_STATUS_SUCCESS && !input1)
 			DRM_DEBUG_KMS("First %s output reported failure to "
 					"sync\n", SDVO_NAME(sdvo_priv));
 	}
 
-	intel_sdvo_set_active_outputs(intel_output, sdvo_priv->save_active_outputs);
+	intel_sdvo_set_active_outputs(intel_encoder, sdvo_priv->save_active_outputs);
 }
 
 static int intel_sdvo_mode_valid(struct drm_connector *connector,
 				 struct drm_display_mode *mode)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 
 	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 		return MODE_NO_DBLESCAN;
@@ -1472,12 +1472,12 @@ static int intel_sdvo_mode_valid(struct drm_connector *connector,
 	return MODE_OK;
 }
 
-static bool intel_sdvo_get_capabilities(struct intel_output *intel_output, struct intel_sdvo_caps *caps)
+static bool intel_sdvo_get_capabilities(struct intel_encoder *intel_encoder, struct intel_sdvo_caps *caps)
 {
 	u8 status;
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_DEVICE_CAPS, NULL, 0);
-	status = intel_sdvo_read_response(intel_output, caps, sizeof(*caps));
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_DEVICE_CAPS, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, caps, sizeof(*caps));
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
@@ -1487,12 +1487,12 @@ static bool intel_sdvo_get_capabilities(struct intel_output *intel_output, struc
 struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB)
 {
 	struct drm_connector *connector = NULL;
-	struct intel_output *iout = NULL;
+	struct intel_encoder *iout = NULL;
 	struct intel_sdvo_priv *sdvo;
 
 	/* find the sdvo connector */
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		iout = to_intel_output(connector);
+		iout = to_intel_encoder(connector);
 
 		if (iout->type != INTEL_OUTPUT_SDVO)
 			continue;
@@ -1514,16 +1514,16 @@ int intel_sdvo_supports_hotplug(struct drm_connector *connector)
 {
 	u8 response[2];
 	u8 status;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	DRM_DEBUG_KMS("\n");
 
 	if (!connector)
 		return 0;
 
-	intel_output = to_intel_output(connector);
+	intel_encoder = to_intel_encoder(connector);
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
-	status = intel_sdvo_read_response(intel_output, &response, 2);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, &response, 2);
 
 	if (response[0] !=0)
 		return 1;
@@ -1535,30 +1535,30 @@ void intel_sdvo_set_hotplug(struct drm_connector *connector, int on)
 {
 	u8 response[2];
 	u8 status;
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
-	intel_sdvo_read_response(intel_output, &response, 2);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
+	intel_sdvo_read_response(intel_encoder, &response, 2);
 
 	if (on) {
-		intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
-		status = intel_sdvo_read_response(intel_output, &response, 2);
+		intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
+		status = intel_sdvo_read_response(intel_encoder, &response, 2);
 
-		intel_sdvo_write_cmd(intel_output, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
+		intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
 	} else {
 		response[0] = 0;
 		response[1] = 0;
-		intel_sdvo_write_cmd(intel_output, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
+		intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
 	}
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
-	intel_sdvo_read_response(intel_output, &response, 2);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
+	intel_sdvo_read_response(intel_encoder, &response, 2);
 }
 
 static bool
-intel_sdvo_multifunc_encoder(struct intel_output *intel_output)
+intel_sdvo_multifunc_encoder(struct intel_encoder *intel_encoder)
 {
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	int caps = 0;
 
 	if (sdvo_priv->caps.output_flags &
@@ -1592,11 +1592,11 @@ static struct drm_connector *
 intel_find_analog_connector(struct drm_device *dev)
 {
 	struct drm_connector *connector;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		intel_output = to_intel_output(connector);
-		if (intel_output->type == INTEL_OUTPUT_ANALOG)
+		intel_encoder = to_intel_encoder(connector);
+		if (intel_encoder->type == INTEL_OUTPUT_ANALOG)
 			return connector;
 	}
 	return NULL;
@@ -1621,16 +1621,16 @@ intel_analog_is_connected(struct drm_device *dev)
 enum drm_connector_status
 intel_sdvo_hdmi_sink_detect(struct drm_connector *connector, u16 response)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	enum drm_connector_status status = connector_status_connected;
 	struct edid *edid = NULL;
 
-	edid = drm_get_edid(&intel_output->base,
-			    intel_output->ddc_bus);
+	edid = drm_get_edid(&intel_encoder->base,
+			    intel_encoder->ddc_bus);
 
 	/* This is only applied to SDVO cards with multiple outputs */
-	if (edid == NULL && intel_sdvo_multifunc_encoder(intel_output)) {
+	if (edid == NULL && intel_sdvo_multifunc_encoder(intel_encoder)) {
 		uint8_t saved_ddc, temp_ddc;
 		saved_ddc = sdvo_priv->ddc_bus;
 		temp_ddc = sdvo_priv->ddc_bus >> 1;
@@ -1640,8 +1640,8 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector, u16 response)
 		 */
 		while(temp_ddc > 1) {
 			sdvo_priv->ddc_bus = temp_ddc;
-			edid = drm_get_edid(&intel_output->base,
-				intel_output->ddc_bus);
+			edid = drm_get_edid(&intel_encoder->base,
+				intel_encoder->ddc_bus);
 			if (edid) {
 				/*
 				 * When we can get the EDID, maybe it is the
@@ -1660,8 +1660,8 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector, u16 response)
 	 */
 	if (edid == NULL &&
 	    sdvo_priv->analog_ddc_bus &&
-	    !intel_analog_is_connected(intel_output->base.dev))
-		edid = drm_get_edid(&intel_output->base,
+	    !intel_analog_is_connected(intel_encoder->base.dev))
+		edid = drm_get_edid(&intel_encoder->base,
 				    sdvo_priv->analog_ddc_bus);
 	if (edid != NULL) {
 		/* Don't report the output as connected if it's a DVI-I
@@ -1676,7 +1676,7 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector, u16 response)
 		}
 
 		kfree(edid);
-		intel_output->base.display_info.raw_edid = NULL;
+		intel_encoder->base.display_info.raw_edid = NULL;
 
 	} else if (response & (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1))
 		status = connector_status_disconnected;
@@ -1688,16 +1688,16 @@ static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connect
 {
 	uint16_t response;
 	u8 status;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 
-	intel_sdvo_write_cmd(intel_output,
+	intel_sdvo_write_cmd(intel_encoder,
 			     SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0);
 	if (sdvo_priv->is_tv) {
 		/* add 30ms delay when the output type is SDVO-TV */
 		mdelay(30);
 	}
-	status = intel_sdvo_read_response(intel_output, &response, 2);
+	status = intel_sdvo_read_response(intel_encoder, &response, 2);
 
 	DRM_DEBUG_KMS("SDVO response %d %d\n", response & 0xff, response >> 8);
 
@@ -1707,10 +1707,10 @@ static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connect
 	if (response == 0)
 		return connector_status_disconnected;
 
-	if (intel_sdvo_multifunc_encoder(intel_output) &&
+	if (intel_sdvo_multifunc_encoder(intel_encoder) &&
 		sdvo_priv->attached_output != response) {
 		if (sdvo_priv->controlled_output != response &&
-			intel_sdvo_output_setup(intel_output, response) != true)
+			intel_sdvo_output_setup(intel_encoder, response) != true)
 			return connector_status_unknown;
 		sdvo_priv->attached_output = response;
 	}
@@ -1719,12 +1719,12 @@ static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connect
 
 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	int num_modes;
 
 	/* set the bus switch and get the modes */
-	num_modes = intel_ddc_get_modes(intel_output);
+	num_modes = intel_ddc_get_modes(intel_encoder);
 
 	/*
 	 * Mac mini hack.  On this device, the DVI-I connector shares one DDC
@@ -1734,17 +1734,17 @@ static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
 	 */
 	if (num_modes == 0 &&
 	    sdvo_priv->analog_ddc_bus &&
-	    !intel_analog_is_connected(intel_output->base.dev)) {
+	    !intel_analog_is_connected(intel_encoder->base.dev)) {
 		struct i2c_adapter *digital_ddc_bus;
 
 		/* Switch to the analog ddc bus and try that
 		 */
-		digital_ddc_bus = intel_output->ddc_bus;
-		intel_output->ddc_bus = sdvo_priv->analog_ddc_bus;
+		digital_ddc_bus = intel_encoder->ddc_bus;
+		intel_encoder->ddc_bus = sdvo_priv->analog_ddc_bus;
 
-		(void) intel_ddc_get_modes(intel_output);
+		(void) intel_ddc_get_modes(intel_encoder);
 
-		intel_output->ddc_bus = digital_ddc_bus;
+		intel_encoder->ddc_bus = digital_ddc_bus;
 	}
 }
 
@@ -1815,7 +1815,7 @@ struct drm_display_mode sdvo_tv_modes[] = {
 
 static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
 {
-	struct intel_output *output = to_intel_output(connector);
+	struct intel_encoder *output = to_intel_encoder(connector);
 	struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
 	struct intel_sdvo_sdtv_resolution_request tv_res;
 	uint32_t reply = 0, format_map = 0;
@@ -1857,9 +1857,9 @@ static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
 
 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	struct drm_display_mode *newmode;
 
 	/*
@@ -1867,7 +1867,7 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 	 * Assume that the preferred modes are
 	 * arranged in priority order.
 	 */
-	intel_ddc_get_modes(intel_output);
+	intel_ddc_get_modes(intel_encoder);
 	if (list_empty(&connector->probed_modes) == false)
 		goto end;
 
@@ -1896,7 +1896,7 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 
 static int intel_sdvo_get_modes(struct drm_connector *connector)
 {
-	struct intel_output *output = to_intel_output(connector);
+	struct intel_encoder *output = to_intel_encoder(connector);
 	struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
 
 	if (sdvo_priv->is_tv)
@@ -1914,8 +1914,8 @@ static int intel_sdvo_get_modes(struct drm_connector *connector)
 static
 void intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	struct drm_device *dev = connector->dev;
 
 	if (sdvo_priv->is_tv) {
@@ -1952,13 +1952,13 @@ void intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
 
 static void intel_sdvo_destroy(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 
-	if (intel_output->i2c_bus)
-		intel_i2c_destroy(intel_output->i2c_bus);
-	if (intel_output->ddc_bus)
-		intel_i2c_destroy(intel_output->ddc_bus);
+	if (intel_encoder->i2c_bus)
+		intel_i2c_destroy(intel_encoder->i2c_bus);
+	if (intel_encoder->ddc_bus)
+		intel_i2c_destroy(intel_encoder->ddc_bus);
 	if (sdvo_priv->analog_ddc_bus)
 		intel_i2c_destroy(sdvo_priv->analog_ddc_bus);
 
@@ -1976,7 +1976,7 @@ static void intel_sdvo_destroy(struct drm_connector *connector)
 	drm_sysfs_connector_remove(connector);
 	drm_connector_cleanup(connector);
 
-	kfree(intel_output);
+	kfree(intel_encoder);
 }
 
 static int
@@ -1984,9 +1984,9 @@ intel_sdvo_set_property(struct drm_connector *connector,
 			struct drm_property *property,
 			uint64_t val)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	struct drm_crtc *crtc = encoder->crtc;
 	int ret = 0;
 	bool changed = false;
@@ -2094,8 +2094,8 @@ intel_sdvo_set_property(struct drm_connector *connector,
 			sdvo_priv->cur_brightness = temp_value;
 		}
 		if (cmd) {
-			intel_sdvo_write_cmd(intel_output, cmd, &temp_value, 2);
-			status = intel_sdvo_read_response(intel_output,
+			intel_sdvo_write_cmd(intel_encoder, cmd, &temp_value, 2);
+			status = intel_sdvo_read_response(intel_encoder,
 								NULL, 0);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO command \n");
@@ -2190,7 +2190,7 @@ intel_sdvo_select_ddc_bus(struct intel_sdvo_priv *dev_priv)
 }
 
 static bool
-intel_sdvo_get_digital_encoding_mode(struct intel_output *output)
+intel_sdvo_get_digital_encoding_mode(struct intel_encoder *output)
 {
 	struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
 	uint8_t status;
@@ -2204,42 +2204,42 @@ intel_sdvo_get_digital_encoding_mode(struct intel_output *output)
 	return true;
 }
 
-static struct intel_output *
-intel_sdvo_chan_to_intel_output(struct intel_i2c_chan *chan)
+static struct intel_encoder *
+intel_sdvo_chan_to_intel_encoder(struct intel_i2c_chan *chan)
 {
 	struct drm_device *dev = chan->drm_dev;
 	struct drm_connector *connector;
-	struct intel_output *intel_output = NULL;
+	struct intel_encoder *intel_encoder = NULL;
 
 	list_for_each_entry(connector,
 			&dev->mode_config.connector_list, head) {
-		if (to_intel_output(connector)->ddc_bus == &chan->adapter) {
-			intel_output = to_intel_output(connector);
+		if (to_intel_encoder(connector)->ddc_bus == &chan->adapter) {
+			intel_encoder = to_intel_encoder(connector);
 			break;
 		}
 	}
-	return intel_output;
+	return intel_encoder;
 }
 
 static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap,
 				  struct i2c_msg msgs[], int num)
 {
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct intel_sdvo_priv *sdvo_priv;
 	struct i2c_algo_bit_data *algo_data;
 	const struct i2c_algorithm *algo;
 
 	algo_data = (struct i2c_algo_bit_data *)i2c_adap->algo_data;
-	intel_output =
-		intel_sdvo_chan_to_intel_output(
+	intel_encoder =
+		intel_sdvo_chan_to_intel_encoder(
 				(struct intel_i2c_chan *)(algo_data->data));
-	if (intel_output == NULL)
+	if (intel_encoder == NULL)
 		return -EINVAL;
 
-	sdvo_priv = intel_output->dev_priv;
-	algo = intel_output->i2c_bus->algo;
+	sdvo_priv = intel_encoder->dev_priv;
+	algo = intel_encoder->i2c_bus->algo;
 
-	intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
+	intel_sdvo_set_control_bus_switch(intel_encoder, sdvo_priv->ddc_bus);
 	return algo->master_xfer(i2c_adap, msgs, num);
 }
 
@@ -2304,15 +2304,15 @@ static struct dmi_system_id intel_sdvo_bad_tv[] = {
 };
 
 static bool
-intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
+intel_sdvo_output_setup(struct intel_encoder *intel_encoder, uint16_t flags)
 {
-	struct drm_connector *connector = &intel_output->base;
-	struct drm_encoder *encoder = &intel_output->enc;
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct drm_connector *connector = &intel_encoder->base;
+	struct drm_encoder *encoder = &intel_encoder->enc;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	bool ret = true, registered = false;
 
 	sdvo_priv->is_tv = false;
-	intel_output->needs_tv_clock = false;
+	intel_encoder->needs_tv_clock = false;
 	sdvo_priv->is_lvds = false;
 
 	if (device_is_registered(&connector->kdev)) {
@@ -2330,16 +2330,16 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
 		encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
 		connector->connector_type = DRM_MODE_CONNECTOR_DVID;
 
-		if (intel_sdvo_get_supp_encode(intel_output,
+		if (intel_sdvo_get_supp_encode(intel_encoder,
 					       &sdvo_priv->encode) &&
-		    intel_sdvo_get_digital_encoding_mode(intel_output) &&
+		    intel_sdvo_get_digital_encoding_mode(intel_encoder) &&
 		    sdvo_priv->is_hdmi) {
 			/* enable hdmi encoding mode if supported */
-			intel_sdvo_set_encode(intel_output, SDVO_ENCODE_HDMI);
-			intel_sdvo_set_colorimetry(intel_output,
+			intel_sdvo_set_encode(intel_encoder, SDVO_ENCODE_HDMI);
+			intel_sdvo_set_colorimetry(intel_encoder,
 						   SDVO_COLORIMETRY_RGB256);
 			connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
-			intel_output->clone_mask =
+			intel_encoder->clone_mask =
 					(1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
 					(1 << INTEL_ANALOG_CLONE_BIT);
 		}
@@ -2350,21 +2350,21 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
 		encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
 		connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
 		sdvo_priv->is_tv = true;
-		intel_output->needs_tv_clock = true;
-		intel_output->clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
+		intel_encoder->needs_tv_clock = true;
+		intel_encoder->clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
 	} else if (flags & SDVO_OUTPUT_RGB0) {
 
 		sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0;
 		encoder->encoder_type = DRM_MODE_ENCODER_DAC;
 		connector->connector_type = DRM_MODE_CONNECTOR_VGA;
-		intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
+		intel_encoder->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
 					(1 << INTEL_ANALOG_CLONE_BIT);
 	} else if (flags & SDVO_OUTPUT_RGB1) {
 
 		sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1;
 		encoder->encoder_type = DRM_MODE_ENCODER_DAC;
 		connector->connector_type = DRM_MODE_CONNECTOR_VGA;
-		intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
+		intel_encoder->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
 					(1 << INTEL_ANALOG_CLONE_BIT);
 	} else if (flags & SDVO_OUTPUT_CVBS0) {
 
@@ -2372,15 +2372,15 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
 		encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
 		connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
 		sdvo_priv->is_tv = true;
-		intel_output->needs_tv_clock = true;
-		intel_output->clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
+		intel_encoder->needs_tv_clock = true;
+		intel_encoder->clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
 	} else if (flags & SDVO_OUTPUT_LVDS0) {
 
 		sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS0;
 		encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
 		connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
 		sdvo_priv->is_lvds = true;
-		intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT) |
+		intel_encoder->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT) |
 					(1 << INTEL_SDVO_LVDS_CLONE_BIT);
 	} else if (flags & SDVO_OUTPUT_LVDS1) {
 
@@ -2388,7 +2388,7 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
 		encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
 		connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
 		sdvo_priv->is_lvds = true;
-		intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT) |
+		intel_encoder->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT) |
 					(1 << INTEL_SDVO_LVDS_CLONE_BIT);
 	} else {
 
@@ -2401,7 +2401,7 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
 			      bytes[0], bytes[1]);
 		ret = false;
 	}
-	intel_output->crtc_mask = (1 << 0) | (1 << 1);
+	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 
 	if (ret && registered)
 		ret = drm_sysfs_connector_add(connector) == 0 ? true : false;
@@ -2413,18 +2413,18 @@ intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
 
 static void intel_sdvo_tv_create_property(struct drm_connector *connector)
 {
-      struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+      struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	struct intel_sdvo_tv_format format;
 	uint32_t format_map, i;
 	uint8_t status;
 
-	intel_sdvo_set_target_output(intel_output,
+	intel_sdvo_set_target_output(intel_encoder,
 				     sdvo_priv->controlled_output);
 
-	intel_sdvo_write_cmd(intel_output,
+	intel_sdvo_write_cmd(intel_encoder,
 			     SDVO_CMD_GET_SUPPORTED_TV_FORMATS, NULL, 0);
-	status = intel_sdvo_read_response(intel_output,
+	status = intel_sdvo_read_response(intel_encoder,
 					  &format, sizeof(format));
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return;
@@ -2462,16 +2462,16 @@ static void intel_sdvo_tv_create_property(struct drm_connector *connector)
 
 static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	struct intel_sdvo_enhancements_reply sdvo_data;
 	struct drm_device *dev = connector->dev;
 	uint8_t status;
 	uint16_t response, data_value[2];
 
-	intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
 						NULL, 0);
-	status = intel_sdvo_read_response(intel_output, &sdvo_data,
+	status = intel_sdvo_read_response(intel_encoder, &sdvo_data,
 					sizeof(sdvo_data));
 	if (status != SDVO_CMD_STATUS_SUCCESS) {
 		DRM_DEBUG_KMS(" incorrect response is returned\n");
@@ -2487,18 +2487,18 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 		 * property
 		 */
 		if (sdvo_data.overscan_h) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_OVERSCAN_H, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO max "
 						"h_overscan\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_OVERSCAN_H, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO h_overscan\n");
@@ -2528,18 +2528,18 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 					data_value[0], data_value[1], response);
 		}
 		if (sdvo_data.overscan_v) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_OVERSCAN_V, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO max "
 						"v_overscan\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_OVERSCAN_V, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO v_overscan\n");
@@ -2569,17 +2569,17 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 					data_value[0], data_value[1], response);
 		}
 		if (sdvo_data.position_h) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_POSITION_H, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO Max h_pos\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_POSITION_H, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO get h_postion\n");
@@ -2600,17 +2600,17 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 					data_value[0], data_value[1], response);
 		}
 		if (sdvo_data.position_v) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_POSITION_V, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO Max v_pos\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_POSITION_V, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO get v_postion\n");
@@ -2633,17 +2633,17 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 	}
 	if (sdvo_priv->is_tv) {
 		if (sdvo_data.saturation) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_SATURATION, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO Max sat\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_SATURATION, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO get sat\n");
@@ -2665,17 +2665,17 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 					data_value[0], data_value[1], response);
 		}
 		if (sdvo_data.contrast) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_CONTRAST, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO Max contrast\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_CONTRAST, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO get contrast\n");
@@ -2696,17 +2696,17 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 					data_value[0], data_value[1], response);
 		}
 		if (sdvo_data.hue) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_HUE, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO Max hue\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_HUE, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO get hue\n");
@@ -2729,17 +2729,17 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 	}
 	if (sdvo_priv->is_tv || sdvo_priv->is_lvds) {
 		if (sdvo_data.brightness) {
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_MAX_BRIGHTNESS, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&data_value, 4);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO Max bright\n");
 				return;
 			}
-			intel_sdvo_write_cmd(intel_output,
+			intel_sdvo_write_cmd(intel_encoder,
 				SDVO_CMD_GET_BRIGHTNESS, NULL, 0);
-			status = intel_sdvo_read_response(intel_output,
+			status = intel_sdvo_read_response(intel_encoder,
 				&response, 2);
 			if (status != SDVO_CMD_STATUS_SUCCESS) {
 				DRM_DEBUG_KMS("Incorrect SDVO get brigh\n");
@@ -2768,40 +2768,40 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_connector *connector;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct intel_sdvo_priv *sdvo_priv;
 
 	u8 ch[0x40];
 	int i;
 
-	intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
-	if (!intel_output) {
+	intel_encoder = kcalloc(sizeof(struct intel_encoder)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
+	if (!intel_encoder) {
 		return false;
 	}
 
-	sdvo_priv = (struct intel_sdvo_priv *)(intel_output + 1);
+	sdvo_priv = (struct intel_sdvo_priv *)(intel_encoder + 1);
 	sdvo_priv->output_device = output_device;
 
-	intel_output->dev_priv = sdvo_priv;
-	intel_output->type = INTEL_OUTPUT_SDVO;
+	intel_encoder->dev_priv = sdvo_priv;
+	intel_encoder->type = INTEL_OUTPUT_SDVO;
 
 	/* setup the DDC bus. */
 	if (output_device == SDVOB)
-		intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB");
+		intel_encoder->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB");
 	else
-		intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC");
+		intel_encoder->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC");
 
-	if (!intel_output->i2c_bus)
+	if (!intel_encoder->i2c_bus)
 		goto err_inteloutput;
 
 	sdvo_priv->slave_addr = intel_sdvo_get_slave_addr(dev, output_device);
 
 	/* Save the bit-banging i2c functionality for use by the DDC wrapper */
-	intel_sdvo_i2c_bit_algo.functionality = intel_output->i2c_bus->algo->functionality;
+	intel_sdvo_i2c_bit_algo.functionality = intel_encoder->i2c_bus->algo->functionality;
 
 	/* Read the regs to test if we can talk to the device */
 	for (i = 0; i < 0x40; i++) {
-		if (!intel_sdvo_read_byte(intel_output, i, &ch[i])) {
+		if (!intel_sdvo_read_byte(intel_encoder, i, &ch[i])) {
 			DRM_DEBUG_KMS("No SDVO device found on SDVO%c\n",
 					output_device == SDVOB ? 'B' : 'C');
 			goto err_i2c;
@@ -2810,27 +2810,27 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 
 	/* setup the DDC bus. */
 	if (output_device == SDVOB) {
-		intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");
+		intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");
 		sdvo_priv->analog_ddc_bus = intel_i2c_create(dev, GPIOA,
 						"SDVOB/VGA DDC BUS");
 		dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
 	} else {
-		intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS");
+		intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS");
 		sdvo_priv->analog_ddc_bus = intel_i2c_create(dev, GPIOA,
 						"SDVOC/VGA DDC BUS");
 		dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
 	}
 
-	if (intel_output->ddc_bus == NULL)
+	if (intel_encoder->ddc_bus == NULL)
 		goto err_i2c;
 
 	/* Wrap with our custom algo which switches to DDC mode */
-	intel_output->ddc_bus->algo = &intel_sdvo_i2c_bit_algo;
+	intel_encoder->ddc_bus->algo = &intel_sdvo_i2c_bit_algo;
 
 	/* In default case sdvo lvds is false */
-	intel_sdvo_get_capabilities(intel_output, &sdvo_priv->caps);
+	intel_sdvo_get_capabilities(intel_encoder, &sdvo_priv->caps);
 
-	if (intel_sdvo_output_setup(intel_output,
+	if (intel_sdvo_output_setup(intel_encoder,
 				    sdvo_priv->caps.output_flags) != true) {
 		DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
 			  output_device == SDVOB ? 'B' : 'C');
@@ -2838,7 +2838,7 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 	}
 
 
-	connector = &intel_output->base;
+	connector = &intel_encoder->base;
 	drm_connector_init(dev, connector, &intel_sdvo_connector_funcs,
 			   connector->connector_type);
 
@@ -2847,12 +2847,12 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 	connector->doublescan_allowed = 0;
 	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
 
-	drm_encoder_init(dev, &intel_output->enc,
-			&intel_sdvo_enc_funcs, intel_output->enc.encoder_type);
+	drm_encoder_init(dev, &intel_encoder->enc,
+			&intel_sdvo_enc_funcs, intel_encoder->enc.encoder_type);
 
-	drm_encoder_helper_add(&intel_output->enc, &intel_sdvo_helper_funcs);
+	drm_encoder_helper_add(&intel_encoder->enc, &intel_sdvo_helper_funcs);
 
-	drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
+	drm_mode_connector_attach_encoder(&intel_encoder->base, &intel_encoder->enc);
 	if (sdvo_priv->is_tv)
 		intel_sdvo_tv_create_property(connector);
 
@@ -2864,9 +2864,9 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 	intel_sdvo_select_ddc_bus(sdvo_priv);
 
 	/* Set the input timing to the screen. Assume always input 0. */
-	intel_sdvo_set_target_input(intel_output, true, false);
+	intel_sdvo_set_target_input(intel_encoder, true, false);
 
-	intel_sdvo_get_input_pixel_clock_range(intel_output,
+	intel_sdvo_get_input_pixel_clock_range(intel_encoder,
 					       &sdvo_priv->pixel_clock_min,
 					       &sdvo_priv->pixel_clock_max);
 
@@ -2893,12 +2893,12 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 err_i2c:
 	if (sdvo_priv->analog_ddc_bus != NULL)
 		intel_i2c_destroy(sdvo_priv->analog_ddc_bus);
-	if (intel_output->ddc_bus != NULL)
-		intel_i2c_destroy(intel_output->ddc_bus);
-	if (intel_output->i2c_bus != NULL)
-		intel_i2c_destroy(intel_output->i2c_bus);
+	if (intel_encoder->ddc_bus != NULL)
+		intel_i2c_destroy(intel_encoder->ddc_bus);
+	if (intel_encoder->i2c_bus != NULL)
+		intel_i2c_destroy(intel_encoder->i2c_bus);
 err_inteloutput:
-	kfree(intel_output);
+	kfree(intel_encoder);
 
 	return false;
 }
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 552ec110b7419..d7d39b2327df3 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -921,8 +921,8 @@ intel_tv_save(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_tv_priv *tv_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_tv_priv *tv_priv = intel_encoder->dev_priv;
 	int i;
 
 	tv_priv->save_TV_H_CTL_1 = I915_READ(TV_H_CTL_1);
@@ -971,8 +971,8 @@ intel_tv_restore(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_tv_priv *tv_priv = intel_output->dev_priv;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_tv_priv *tv_priv = intel_encoder->dev_priv;
 	struct drm_crtc *crtc = connector->encoder->crtc;
 	struct intel_crtc *intel_crtc;
 	int i;
@@ -1068,9 +1068,9 @@ intel_tv_mode_lookup (char *tv_format)
 }
 
 static const struct tv_mode *
-intel_tv_mode_find (struct intel_output *intel_output)
+intel_tv_mode_find (struct intel_encoder *intel_encoder)
 {
-	struct intel_tv_priv *tv_priv = intel_output->dev_priv;
+	struct intel_tv_priv *tv_priv = intel_encoder->dev_priv;
 
 	return intel_tv_mode_lookup(tv_priv->tv_format);
 }
@@ -1078,8 +1078,8 @@ intel_tv_mode_find (struct intel_output *intel_output)
 static enum drm_mode_status
 intel_tv_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_encoder);
 
 	/* Ensure TV refresh is close to desired refresh */
 	if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode) * 1000)
@@ -1095,8 +1095,8 @@ intel_tv_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
 {
 	struct drm_device *dev = encoder->dev;
 	struct drm_mode_config *drm_config = &dev->mode_config;
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	const struct tv_mode *tv_mode = intel_tv_mode_find (intel_output);
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	const struct tv_mode *tv_mode = intel_tv_mode_find (intel_encoder);
 	struct drm_encoder *other_encoder;
 
 	if (!tv_mode)
@@ -1121,9 +1121,9 @@ intel_tv_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc = encoder->crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_output *intel_output = enc_to_intel_output(encoder);
-	struct intel_tv_priv *tv_priv = intel_output->dev_priv;
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_tv_priv *tv_priv = intel_encoder->dev_priv;
+	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_encoder);
 	u32 tv_ctl;
 	u32 hctl1, hctl2, hctl3;
 	u32 vctl1, vctl2, vctl3, vctl4, vctl5, vctl6, vctl7;
@@ -1360,9 +1360,9 @@ static const struct drm_display_mode reported_modes[] = {
  * \return false if TV is disconnected.
  */
 static int
-intel_tv_detect_type (struct drm_crtc *crtc, struct intel_output *intel_output)
+intel_tv_detect_type (struct drm_crtc *crtc, struct intel_encoder *intel_encoder)
 {
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	unsigned long irqflags;
@@ -1441,9 +1441,9 @@ intel_tv_detect_type (struct drm_crtc *crtc, struct intel_output *intel_output)
  */
 static void intel_tv_find_better_format(struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_tv_priv *tv_priv = intel_output->dev_priv;
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_tv_priv *tv_priv = intel_encoder->dev_priv;
+	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_encoder);
 	int i;
 
 	if ((tv_priv->type == DRM_MODE_CONNECTOR_Component) ==
@@ -1475,9 +1475,9 @@ intel_tv_detect(struct drm_connector *connector)
 {
 	struct drm_crtc *crtc;
 	struct drm_display_mode mode;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_tv_priv *tv_priv = intel_output->dev_priv;
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_tv_priv *tv_priv = intel_encoder->dev_priv;
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	int dpms_mode;
 	int type = tv_priv->type;
 
@@ -1485,12 +1485,12 @@ intel_tv_detect(struct drm_connector *connector)
 	drm_mode_set_crtcinfo(&mode, CRTC_INTERLACE_HALVE_V);
 
 	if (encoder->crtc && encoder->crtc->enabled) {
-		type = intel_tv_detect_type(encoder->crtc, intel_output);
+		type = intel_tv_detect_type(encoder->crtc, intel_encoder);
 	} else {
-		crtc = intel_get_load_detect_pipe(intel_output, &mode, &dpms_mode);
+		crtc = intel_get_load_detect_pipe(intel_encoder, &mode, &dpms_mode);
 		if (crtc) {
-			type = intel_tv_detect_type(crtc, intel_output);
-			intel_release_load_detect_pipe(intel_output, dpms_mode);
+			type = intel_tv_detect_type(crtc, intel_encoder);
+			intel_release_load_detect_pipe(intel_encoder, dpms_mode);
 		} else
 			type = -1;
 	}
@@ -1525,8 +1525,8 @@ static void
 intel_tv_chose_preferred_modes(struct drm_connector *connector,
 			       struct drm_display_mode *mode_ptr)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_encoder);
 
 	if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
 		mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
@@ -1550,8 +1550,8 @@ static int
 intel_tv_get_modes(struct drm_connector *connector)
 {
 	struct drm_display_mode *mode_ptr;
-	struct intel_output *intel_output = to_intel_output(connector);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_encoder);
 	int j, count = 0;
 	u64 tmp;
 
@@ -1604,11 +1604,11 @@ intel_tv_get_modes(struct drm_connector *connector)
 static void
 intel_tv_destroy (struct drm_connector *connector)
 {
-	struct intel_output *intel_output = to_intel_output(connector);
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
 
 	drm_sysfs_connector_remove(connector);
 	drm_connector_cleanup(connector);
-	kfree(intel_output);
+	kfree(intel_encoder);
 }
 
 
@@ -1617,9 +1617,9 @@ intel_tv_set_property(struct drm_connector *connector, struct drm_property *prop
 		      uint64_t val)
 {
 	struct drm_device *dev = connector->dev;
-	struct intel_output *intel_output = to_intel_output(connector);
-	struct intel_tv_priv *tv_priv = intel_output->dev_priv;
-	struct drm_encoder *encoder = &intel_output->enc;
+	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
+	struct intel_tv_priv *tv_priv = intel_encoder->dev_priv;
+	struct drm_encoder *encoder = &intel_encoder->enc;
 	struct drm_crtc *crtc = encoder->crtc;
 	int ret = 0;
 	bool changed = false;
@@ -1740,7 +1740,7 @@ intel_tv_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_connector *connector;
-	struct intel_output *intel_output;
+	struct intel_encoder *intel_encoder;
 	struct intel_tv_priv *tv_priv;
 	u32 tv_dac_on, tv_dac_off, save_tv_dac;
 	char **tv_format_names;
@@ -1780,28 +1780,28 @@ intel_tv_init(struct drm_device *dev)
 	    (tv_dac_off & TVDAC_STATE_CHG_EN) != 0)
 		return;
 
-	intel_output = kzalloc(sizeof(struct intel_output) +
+	intel_encoder = kzalloc(sizeof(struct intel_encoder) +
 			       sizeof(struct intel_tv_priv), GFP_KERNEL);
-	if (!intel_output) {
+	if (!intel_encoder) {
 		return;
 	}
 
-	connector = &intel_output->base;
+	connector = &intel_encoder->base;
 
 	drm_connector_init(dev, connector, &intel_tv_connector_funcs,
 			   DRM_MODE_CONNECTOR_SVIDEO);
 
-	drm_encoder_init(dev, &intel_output->enc, &intel_tv_enc_funcs,
+	drm_encoder_init(dev, &intel_encoder->enc, &intel_tv_enc_funcs,
 			 DRM_MODE_ENCODER_TVDAC);
 
-	drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
-	tv_priv = (struct intel_tv_priv *)(intel_output + 1);
-	intel_output->type = INTEL_OUTPUT_TVOUT;
-	intel_output->crtc_mask = (1 << 0) | (1 << 1);
-	intel_output->clone_mask = (1 << INTEL_TV_CLONE_BIT);
-	intel_output->enc.possible_crtcs = ((1 << 0) | (1 << 1));
-	intel_output->enc.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
-	intel_output->dev_priv = tv_priv;
+	drm_mode_connector_attach_encoder(&intel_encoder->base, &intel_encoder->enc);
+	tv_priv = (struct intel_tv_priv *)(intel_encoder + 1);
+	intel_encoder->type = INTEL_OUTPUT_TVOUT;
+	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
+	intel_encoder->clone_mask = (1 << INTEL_TV_CLONE_BIT);
+	intel_encoder->enc.possible_crtcs = ((1 << 0) | (1 << 1));
+	intel_encoder->enc.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
+	intel_encoder->dev_priv = tv_priv;
 	tv_priv->type = DRM_MODE_CONNECTOR_Unknown;
 
 	/* BIOS margin values */
@@ -1812,7 +1812,7 @@ intel_tv_init(struct drm_device *dev)
 
 	tv_priv->tv_format = kstrdup(tv_modes[initial_mode].name, GFP_KERNEL);
 
-	drm_encoder_helper_add(&intel_output->enc, &intel_tv_helper_funcs);
+	drm_encoder_helper_add(&intel_encoder->enc, &intel_tv_helper_funcs);
 	drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
 	connector->interlace_allowed = false;
 	connector->doublescan_allowed = false;

From c751ce4f52b11ea93764a7cd44e6ae9c098d361b Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 25 Mar 2010 11:48:48 -0700
Subject: [PATCH 027/464] drm/i915: Rename many remaining uses of "output" to
 encoder or connector.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_display.c |  20 +--
 drivers/gpu/drm/i915/intel_sdvo.c    | 181 ++++++++++++++-------------
 2 files changed, 103 insertions(+), 98 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2595c4ccc6a88..34d2652f405f6 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -754,8 +754,8 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
     return false;
 }
 
-struct drm_connector *
-intel_pipe_get_output (struct drm_crtc *crtc)
+static struct drm_connector *
+intel_pipe_get_connector (struct drm_crtc *crtc)
 {
     struct drm_device *dev = crtc->dev;
     struct drm_mode_config *mode_config = &dev->mode_config;
@@ -2916,7 +2916,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 	int dspsize_reg = (plane == 0) ? DSPASIZE : DSPBSIZE;
 	int dsppos_reg = (plane == 0) ? DSPAPOS : DSPBPOS;
 	int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
-	int refclk, num_outputs = 0;
+	int refclk, num_connectors = 0;
 	intel_clock_t clock, reduced_clock;
 	u32 dpll = 0, fp = 0, fp2 = 0, dspcntr, pipeconf;
 	bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false;
@@ -2974,10 +2974,10 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 			break;
 		}
 
-		num_outputs++;
+		num_connectors++;
 	}
 
-	if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) {
+	if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2) {
 		refclk = dev_priv->lvds_ssc_freq * 1000;
 		DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
 					refclk / 1000);
@@ -3048,7 +3048,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 		if (is_edp) {
 			struct drm_connector *edp;
 			target_clock = mode->clock;
-			edp = intel_pipe_get_output(crtc);
+			edp = intel_pipe_get_connector(crtc);
 			intel_edp_link_config(to_intel_encoder(edp),
 					&lane, &link_bw);
 		} else {
@@ -3230,7 +3230,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 		/* XXX: just matching BIOS for now */
 		/*	dpll |= PLL_REF_INPUT_TVCLKINBC; */
 		dpll |= 3;
-	else if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2)
+	else if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2)
 		dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
 	else
 		dpll |= PLL_REF_INPUT_DREFCLK;
@@ -3654,9 +3654,9 @@ static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
  * detection.
  *
  * It will be up to the load-detect code to adjust the pipe as appropriate for
- * its requirements.  The pipe will be connected to no other outputs.
+ * its requirements.  The pipe will be connected to no other encoders.
  *
- * Currently this code will only succeed if there is a pipe with no outputs
+ * Currently this code will only succeed if there is a pipe with no encoders
  * configured for it.  In the future, it could choose to temporarily disable
  * some outputs to free up a pipe for its use.
  *
@@ -3770,7 +3770,7 @@ void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, int dpm
 		drm_helper_disable_unused_functions(dev);
 	}
 
-	/* Switch crtc and output back off if necessary */
+	/* Switch crtc and encoder back off if necessary */
 	if (crtc->enabled && dpms_mode != DRM_MODE_DPMS_ON) {
 		if (encoder->crtc == crtc)
 			encoder_funcs->dpms(encoder, dpms_mode);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index ea6de3b149540..a5b049f94915e 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -53,7 +53,7 @@ struct intel_sdvo_priv {
 	u8 slave_addr;
 
 	/* Register for the SDVO device: SDVOB or SDVOC */
-	int output_device;
+	int sdvo_reg;
 
 	/* Active outputs controlled by this SDVO output */
 	uint16_t controlled_output;
@@ -123,7 +123,7 @@ struct intel_sdvo_priv {
 	 */
 	struct intel_sdvo_encode encode;
 
-	/* DDC bus used by this SDVO output */
+	/* DDC bus used by this SDVO encoder */
 	uint8_t ddc_bus;
 
 	/* Mac mini hack -- use the same DDC as the analog connector */
@@ -176,7 +176,7 @@ static void intel_sdvo_write_sdvox(struct intel_encoder *intel_encoder, u32 val)
 	u32 bval = val, cval = val;
 	int i;
 
-	if (sdvo_priv->output_device == SDVOB) {
+	if (sdvo_priv->sdvo_reg == SDVOB) {
 		cval = I915_READ(SDVOC);
 	} else {
 		bval = I915_READ(SDVOB);
@@ -352,8 +352,8 @@ static const struct _sdvo_cmd_name {
     SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 };
 
-#define SDVO_NAME(dev_priv) ((dev_priv)->output_device == SDVOB ? "SDVOB" : "SDVOC")
-#define SDVO_PRIV(output)   ((struct intel_sdvo_priv *) (output)->dev_priv)
+#define SDVO_NAME(dev_priv) ((dev_priv)->sdvo_reg == SDVOB ? "SDVOB" : "SDVOC")
+#define SDVO_PRIV(encoder)   ((struct intel_sdvo_priv *) (encoder)->dev_priv)
 
 static void intel_sdvo_debug_write(struct intel_encoder *intel_encoder, u8 cmd,
 				   void *args, int args_len)
@@ -712,13 +712,13 @@ static bool intel_sdvo_set_output_timing(struct intel_encoder *intel_encoder,
 }
 
 static bool
-intel_sdvo_create_preferred_input_timing(struct intel_encoder *output,
+intel_sdvo_create_preferred_input_timing(struct intel_encoder *intel_encoder,
 					 uint16_t clock,
 					 uint16_t width,
 					 uint16_t height)
 {
 	struct intel_sdvo_preferred_input_timing_args args;
-	struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	uint8_t status;
 
 	memset(&args, 0, sizeof(args));
@@ -732,32 +732,33 @@ intel_sdvo_create_preferred_input_timing(struct intel_encoder *output,
 	    sdvo_priv->sdvo_lvds_fixed_mode->vdisplay != height))
 		args.scaled = 1;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
+	intel_sdvo_write_cmd(intel_encoder,
+			     SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
 			     &args, sizeof(args));
-	status = intel_sdvo_read_response(output, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
 	return true;
 }
 
-static bool intel_sdvo_get_preferred_input_timing(struct intel_encoder *output,
+static bool intel_sdvo_get_preferred_input_timing(struct intel_encoder *intel_encoder,
 						  struct intel_sdvo_dtd *dtd)
 {
 	bool status;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
 			     NULL, 0);
 
-	status = intel_sdvo_read_response(output, &dtd->part1,
+	status = intel_sdvo_read_response(intel_encoder, &dtd->part1,
 					  sizeof(dtd->part1));
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
 			     NULL, 0);
 
-	status = intel_sdvo_read_response(output, &dtd->part2,
+	status = intel_sdvo_read_response(intel_encoder, &dtd->part2,
 					  sizeof(dtd->part2));
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		return false;
@@ -876,13 +877,13 @@ static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
 		mode->flags |= DRM_MODE_FLAG_PVSYNC;
 }
 
-static bool intel_sdvo_get_supp_encode(struct intel_encoder *output,
+static bool intel_sdvo_get_supp_encode(struct intel_encoder *intel_encoder,
 				       struct intel_sdvo_encode *encode)
 {
 	uint8_t status;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_GET_SUPP_ENCODE, NULL, 0);
-	status = intel_sdvo_read_response(output, encode, sizeof(*encode));
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_GET_SUPP_ENCODE, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, encode, sizeof(*encode));
 	if (status != SDVO_CMD_STATUS_SUCCESS) { /* non-support means DVI */
 		memset(encode, 0, sizeof(*encode));
 		return false;
@@ -891,29 +892,30 @@ static bool intel_sdvo_get_supp_encode(struct intel_encoder *output,
 	return true;
 }
 
-static bool intel_sdvo_set_encode(struct intel_encoder *output, uint8_t mode)
+static bool intel_sdvo_set_encode(struct intel_encoder *intel_encoder,
+				  uint8_t mode)
 {
 	uint8_t status;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_SET_ENCODE, &mode, 1);
-	status = intel_sdvo_read_response(output, NULL, 0);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_ENCODE, &mode, 1);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
 
-static bool intel_sdvo_set_colorimetry(struct intel_encoder *output,
+static bool intel_sdvo_set_colorimetry(struct intel_encoder *intel_encoder,
 				       uint8_t mode)
 {
 	uint8_t status;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
-	status = intel_sdvo_read_response(output, NULL, 0);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 
 	return (status == SDVO_CMD_STATUS_SUCCESS);
 }
 
 #if 0
-static void intel_sdvo_dump_hdmi_buf(struct intel_encoder *output)
+static void intel_sdvo_dump_hdmi_buf(struct intel_encoder *intel_encoder)
 {
 	int i, j;
 	uint8_t set_buf_index[2];
@@ -922,43 +924,45 @@ static void intel_sdvo_dump_hdmi_buf(struct intel_encoder *output)
 	uint8_t buf[48];
 	uint8_t *pos;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_GET_HBUF_AV_SPLIT, NULL, 0);
-	intel_sdvo_read_response(output, &av_split, 1);
+	intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, NULL, 0);
+	intel_sdvo_read_response(encoder, &av_split, 1);
 
 	for (i = 0; i <= av_split; i++) {
 		set_buf_index[0] = i; set_buf_index[1] = 0;
-		intel_sdvo_write_cmd(output, SDVO_CMD_SET_HBUF_INDEX,
+		intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
 				     set_buf_index, 2);
-		intel_sdvo_write_cmd(output, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
-		intel_sdvo_read_response(output, &buf_size, 1);
+		intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
+		intel_sdvo_read_response(encoder, &buf_size, 1);
 
 		pos = buf;
 		for (j = 0; j <= buf_size; j += 8) {
-			intel_sdvo_write_cmd(output, SDVO_CMD_GET_HBUF_DATA,
+			intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
 					     NULL, 0);
-			intel_sdvo_read_response(output, pos, 8);
+			intel_sdvo_read_response(encoder, pos, 8);
 			pos += 8;
 		}
 	}
 }
 #endif
 
-static void intel_sdvo_set_hdmi_buf(struct intel_encoder *output, int index,
-				uint8_t *data, int8_t size, uint8_t tx_rate)
+static void intel_sdvo_set_hdmi_buf(struct intel_encoder *intel_encoder,
+				    int index,
+				    uint8_t *data, int8_t size, uint8_t tx_rate)
 {
     uint8_t set_buf_index[2];
 
     set_buf_index[0] = index;
     set_buf_index[1] = 0;
 
-    intel_sdvo_write_cmd(output, SDVO_CMD_SET_HBUF_INDEX, set_buf_index, 2);
+    intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_HBUF_INDEX,
+			 set_buf_index, 2);
 
     for (; size > 0; size -= 8) {
-	intel_sdvo_write_cmd(output, SDVO_CMD_SET_HBUF_DATA, data, 8);
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_HBUF_DATA, data, 8);
 	data += 8;
     }
 
-    intel_sdvo_write_cmd(output, SDVO_CMD_SET_HBUF_TXRATE, &tx_rate, 1);
+    intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_HBUF_TXRATE, &tx_rate, 1);
 }
 
 static uint8_t intel_sdvo_calc_hbuf_csum(uint8_t *data, uint8_t size)
@@ -1033,7 +1037,7 @@ struct dip_infoframe {
 	} __attribute__ ((packed)) u;
 } __attribute__((packed));
 
-static void intel_sdvo_set_avi_infoframe(struct intel_encoder *output,
+static void intel_sdvo_set_avi_infoframe(struct intel_encoder *intel_encoder,
 					 struct drm_display_mode * mode)
 {
 	struct dip_infoframe avi_if = {
@@ -1044,15 +1048,16 @@ static void intel_sdvo_set_avi_infoframe(struct intel_encoder *output,
 
 	avi_if.checksum = intel_sdvo_calc_hbuf_csum((uint8_t *)&avi_if,
 						    4 + avi_if.len);
-	intel_sdvo_set_hdmi_buf(output, 1, (uint8_t *)&avi_if, 4 + avi_if.len,
+	intel_sdvo_set_hdmi_buf(intel_encoder, 1, (uint8_t *)&avi_if,
+				4 + avi_if.len,
 				SDVO_HBUF_TX_VSYNC);
 }
 
-static void intel_sdvo_set_tv_format(struct intel_encoder *output)
+static void intel_sdvo_set_tv_format(struct intel_encoder *intel_encoder)
 {
 
 	struct intel_sdvo_tv_format format;
-	struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	uint32_t format_map, i;
 	uint8_t status;
 
@@ -1065,10 +1070,10 @@ static void intel_sdvo_set_tv_format(struct intel_encoder *output)
 	memcpy(&format, &format_map, sizeof(format_map) > sizeof(format) ?
 			sizeof(format) : sizeof(format_map));
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_SET_TV_FORMAT, &format_map,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_TV_FORMAT, &format_map,
 			     sizeof(format));
 
-	status = intel_sdvo_read_response(output, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 	if (status != SDVO_CMD_STATUS_SUCCESS)
 		DRM_DEBUG_KMS("%s: Failed to set TV format\n",
 			  SDVO_NAME(sdvo_priv));
@@ -1078,8 +1083,8 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 				  struct drm_display_mode *mode,
 				  struct drm_display_mode *adjusted_mode)
 {
-	struct intel_encoder *output = enc_to_intel_encoder(encoder);
-	struct intel_sdvo_priv *dev_priv = output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_sdvo_priv *dev_priv = intel_encoder->dev_priv;
 
 	if (dev_priv->is_tv) {
 		struct intel_sdvo_dtd output_dtd;
@@ -1094,22 +1099,22 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 
 		/* Set output timings */
 		intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
-		intel_sdvo_set_target_output(output,
+		intel_sdvo_set_target_output(intel_encoder,
 					     dev_priv->controlled_output);
-		intel_sdvo_set_output_timing(output, &output_dtd);
+		intel_sdvo_set_output_timing(intel_encoder, &output_dtd);
 
 		/* Set the input timing to the screen. Assume always input 0. */
-		intel_sdvo_set_target_input(output, true, false);
+		intel_sdvo_set_target_input(intel_encoder, true, false);
 
 
-		success = intel_sdvo_create_preferred_input_timing(output,
+		success = intel_sdvo_create_preferred_input_timing(intel_encoder,
 								   mode->clock / 10,
 								   mode->hdisplay,
 								   mode->vdisplay);
 		if (success) {
 			struct intel_sdvo_dtd input_dtd;
 
-			intel_sdvo_get_preferred_input_timing(output,
+			intel_sdvo_get_preferred_input_timing(intel_encoder,
 							     &input_dtd);
 			intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
 			dev_priv->sdvo_flags = input_dtd.part2.sdvo_flags;
@@ -1132,16 +1137,16 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 		intel_sdvo_get_dtd_from_mode(&output_dtd,
 				dev_priv->sdvo_lvds_fixed_mode);
 
-		intel_sdvo_set_target_output(output,
+		intel_sdvo_set_target_output(intel_encoder,
 					     dev_priv->controlled_output);
-		intel_sdvo_set_output_timing(output, &output_dtd);
+		intel_sdvo_set_output_timing(intel_encoder, &output_dtd);
 
 		/* Set the input timing to the screen. Assume always input 0. */
-		intel_sdvo_set_target_input(output, true, false);
+		intel_sdvo_set_target_input(intel_encoder, true, false);
 
 
 		success = intel_sdvo_create_preferred_input_timing(
-				output,
+				intel_encoder,
 				mode->clock / 10,
 				mode->hdisplay,
 				mode->vdisplay);
@@ -1149,7 +1154,7 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
 		if (success) {
 			struct intel_sdvo_dtd input_dtd;
 
-			intel_sdvo_get_preferred_input_timing(output,
+			intel_sdvo_get_preferred_input_timing(intel_encoder,
 							     &input_dtd);
 			intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
 			dev_priv->sdvo_flags = input_dtd.part2.sdvo_flags;
@@ -1181,8 +1186,8 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc = encoder->crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_encoder *output = enc_to_intel_encoder(encoder);
-	struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
+	struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+	struct intel_sdvo_priv *sdvo_priv = intel_encoder->dev_priv;
 	u32 sdvox = 0;
 	int sdvo_pixel_multiply;
 	struct intel_sdvo_in_out_map in_out;
@@ -1201,12 +1206,12 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	in_out.in0 = sdvo_priv->controlled_output;
 	in_out.in1 = 0;
 
-	intel_sdvo_write_cmd(output, SDVO_CMD_SET_IN_OUT_MAP,
+	intel_sdvo_write_cmd(intel_encoder, SDVO_CMD_SET_IN_OUT_MAP,
 			     &in_out, sizeof(in_out));
-	status = intel_sdvo_read_response(output, NULL, 0);
+	status = intel_sdvo_read_response(intel_encoder, NULL, 0);
 
 	if (sdvo_priv->is_hdmi) {
-		intel_sdvo_set_avi_infoframe(output, mode);
+		intel_sdvo_set_avi_infoframe(intel_encoder, mode);
 		sdvox |= SDVO_AUDIO_ENABLE;
 	}
 
@@ -1223,16 +1228,16 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	 */
 	if (!sdvo_priv->is_tv && !sdvo_priv->is_lvds) {
 		/* Set the output timing to the screen */
-		intel_sdvo_set_target_output(output,
+		intel_sdvo_set_target_output(intel_encoder,
 					     sdvo_priv->controlled_output);
-		intel_sdvo_set_output_timing(output, &input_dtd);
+		intel_sdvo_set_output_timing(intel_encoder, &input_dtd);
 	}
 
 	/* Set the input timing to the screen. Assume always input 0. */
-	intel_sdvo_set_target_input(output, true, false);
+	intel_sdvo_set_target_input(intel_encoder, true, false);
 
 	if (sdvo_priv->is_tv)
-		intel_sdvo_set_tv_format(output);
+		intel_sdvo_set_tv_format(intel_encoder);
 
 	/* We would like to use intel_sdvo_create_preferred_input_timing() to
 	 * provide the device with a timing it can support, if it supports that
@@ -1240,29 +1245,29 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	 * output the preferred timing, and we don't support that currently.
 	 */
 #if 0
-	success = intel_sdvo_create_preferred_input_timing(output, clock,
+	success = intel_sdvo_create_preferred_input_timing(encoder, clock,
 							   width, height);
 	if (success) {
 		struct intel_sdvo_dtd *input_dtd;
 
-		intel_sdvo_get_preferred_input_timing(output, &input_dtd);
-		intel_sdvo_set_input_timing(output, &input_dtd);
+		intel_sdvo_get_preferred_input_timing(encoder, &input_dtd);
+		intel_sdvo_set_input_timing(encoder, &input_dtd);
 	}
 #else
-	intel_sdvo_set_input_timing(output, &input_dtd);
+	intel_sdvo_set_input_timing(intel_encoder, &input_dtd);
 #endif
 
 	switch (intel_sdvo_get_pixel_multiplier(mode)) {
 	case 1:
-		intel_sdvo_set_clock_rate_mult(output,
+		intel_sdvo_set_clock_rate_mult(intel_encoder,
 					       SDVO_CLOCK_RATE_MULT_1X);
 		break;
 	case 2:
-		intel_sdvo_set_clock_rate_mult(output,
+		intel_sdvo_set_clock_rate_mult(intel_encoder,
 					       SDVO_CLOCK_RATE_MULT_2X);
 		break;
 	case 4:
-		intel_sdvo_set_clock_rate_mult(output,
+		intel_sdvo_set_clock_rate_mult(intel_encoder,
 					       SDVO_CLOCK_RATE_MULT_4X);
 		break;
 	}
@@ -1273,8 +1278,8 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 			SDVO_VSYNC_ACTIVE_HIGH |
 			SDVO_HSYNC_ACTIVE_HIGH;
 	} else {
-		sdvox |= I915_READ(sdvo_priv->output_device);
-		switch (sdvo_priv->output_device) {
+		sdvox |= I915_READ(sdvo_priv->sdvo_reg);
+		switch (sdvo_priv->sdvo_reg) {
 		case SDVOB:
 			sdvox &= SDVOB_PRESERVE_MASK;
 			break;
@@ -1298,7 +1303,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 
 	if (sdvo_priv->sdvo_flags & SDVO_NEED_TO_STALL)
 		sdvox |= SDVO_STALL_SELECT;
-	intel_sdvo_write_sdvox(output, sdvox);
+	intel_sdvo_write_sdvox(intel_encoder, sdvox);
 }
 
 static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
@@ -1315,7 +1320,7 @@ static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
 			intel_sdvo_set_encoder_power_state(intel_encoder, mode);
 
 		if (mode == DRM_MODE_DPMS_OFF) {
-			temp = I915_READ(sdvo_priv->output_device);
+			temp = I915_READ(sdvo_priv->sdvo_reg);
 			if ((temp & SDVO_ENABLE) != 0) {
 				intel_sdvo_write_sdvox(intel_encoder, temp & ~SDVO_ENABLE);
 			}
@@ -1325,7 +1330,7 @@ static void intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
 		int i;
 		u8 status;
 
-		temp = I915_READ(sdvo_priv->output_device);
+		temp = I915_READ(sdvo_priv->sdvo_reg);
 		if ((temp & SDVO_ENABLE) == 0)
 			intel_sdvo_write_sdvox(intel_encoder, temp | SDVO_ENABLE);
 		for (i = 0; i < 2; i++)
@@ -1388,7 +1393,7 @@ static void intel_sdvo_save(struct drm_connector *connector)
 		/* XXX: Save TV format/enhancements. */
 	}
 
-	sdvo_priv->save_SDVOX = I915_READ(sdvo_priv->output_device);
+	sdvo_priv->save_SDVOX = I915_READ(sdvo_priv->sdvo_reg);
 }
 
 static void intel_sdvo_restore(struct drm_connector *connector)
@@ -1499,10 +1504,10 @@ struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB)
 
 		sdvo = iout->dev_priv;
 
-		if (sdvo->output_device == SDVOB && sdvoB)
+		if (sdvo->sdvo_reg == SDVOB && sdvoB)
 			return connector;
 
-		if (sdvo->output_device == SDVOC && !sdvoB)
+		if (sdvo->sdvo_reg == SDVOC && !sdvoB)
 			return connector;
 
 	}
@@ -2248,12 +2253,12 @@ static struct i2c_algorithm intel_sdvo_i2c_bit_algo = {
 };
 
 static u8
-intel_sdvo_get_slave_addr(struct drm_device *dev, int output_device)
+intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct sdvo_device_mapping *my_mapping, *other_mapping;
 
-	if (output_device == SDVOB) {
+	if (sdvo_reg == SDVOB) {
 		my_mapping = &dev_priv->sdvo_mappings[0];
 		other_mapping = &dev_priv->sdvo_mappings[1];
 	} else {
@@ -2278,7 +2283,7 @@ intel_sdvo_get_slave_addr(struct drm_device *dev, int output_device)
 	/* No SDVO device info is found for another DVO port,
 	 * so use mapping assumption we had before BIOS parsing.
 	 */
-	if (output_device == SDVOB)
+	if (sdvo_reg == SDVOB)
 		return 0x70;
 	else
 		return 0x72;
@@ -2764,7 +2769,7 @@ static void intel_sdvo_create_enhance_property(struct drm_connector *connector)
 	return;
 }
 
-bool intel_sdvo_init(struct drm_device *dev, int output_device)
+bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_connector *connector;
@@ -2780,13 +2785,13 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 	}
 
 	sdvo_priv = (struct intel_sdvo_priv *)(intel_encoder + 1);
-	sdvo_priv->output_device = output_device;
+	sdvo_priv->sdvo_reg = sdvo_reg;
 
 	intel_encoder->dev_priv = sdvo_priv;
 	intel_encoder->type = INTEL_OUTPUT_SDVO;
 
 	/* setup the DDC bus. */
-	if (output_device == SDVOB)
+	if (sdvo_reg == SDVOB)
 		intel_encoder->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB");
 	else
 		intel_encoder->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC");
@@ -2794,7 +2799,7 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 	if (!intel_encoder->i2c_bus)
 		goto err_inteloutput;
 
-	sdvo_priv->slave_addr = intel_sdvo_get_slave_addr(dev, output_device);
+	sdvo_priv->slave_addr = intel_sdvo_get_slave_addr(dev, sdvo_reg);
 
 	/* Save the bit-banging i2c functionality for use by the DDC wrapper */
 	intel_sdvo_i2c_bit_algo.functionality = intel_encoder->i2c_bus->algo->functionality;
@@ -2803,13 +2808,13 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 	for (i = 0; i < 0x40; i++) {
 		if (!intel_sdvo_read_byte(intel_encoder, i, &ch[i])) {
 			DRM_DEBUG_KMS("No SDVO device found on SDVO%c\n",
-					output_device == SDVOB ? 'B' : 'C');
+					sdvo_reg == SDVOB ? 'B' : 'C');
 			goto err_i2c;
 		}
 	}
 
 	/* setup the DDC bus. */
-	if (output_device == SDVOB) {
+	if (sdvo_reg == SDVOB) {
 		intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");
 		sdvo_priv->analog_ddc_bus = intel_i2c_create(dev, GPIOA,
 						"SDVOB/VGA DDC BUS");
@@ -2833,7 +2838,7 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 	if (intel_sdvo_output_setup(intel_encoder,
 				    sdvo_priv->caps.output_flags) != true) {
 		DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
-			  output_device == SDVOB ? 'B' : 'C');
+			  sdvo_reg == SDVOB ? 'B' : 'C');
 		goto err_i2c;
 	}
 

From e05c378f4973674a16d5b9636f2310cf88aca5f2 Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Tue, 30 Mar 2010 18:25:17 +0200
Subject: [PATCH 028/464] [LogFS] Remove unused method

All callers are long gone.

Signed-off-by: Joern Engel <joern@logfs.org>
---
 fs/logfs/logfs.h     |  1 -
 fs/logfs/readwrite.c | 21 ---------------------
 fs/logfs/segment.c   |  6 ------
 3 files changed, 28 deletions(-)

diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index b84b0eec6024d..97195b9e93a50 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -305,7 +305,6 @@ typedef int write_alias_t(struct super_block *sb, u64 ino, u64 bix,
 		level_t level, int child_no, __be64 val);
 struct logfs_block_ops {
 	void	(*write_block)(struct logfs_block *block);
-	gc_level_t	(*block_level)(struct logfs_block *block);
 	void	(*free_block)(struct super_block *sb, struct logfs_block*block);
 	int	(*write_alias)(struct super_block *sb,
 			struct logfs_block *block,
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index c3a3a6814b841..3659c37fbd724 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -429,25 +429,6 @@ static void inode_write_block(struct logfs_block *block)
 	}
 }
 
-static gc_level_t inode_block_level(struct logfs_block *block)
-{
-	BUG_ON(block->inode->i_ino == LOGFS_INO_MASTER);
-	return GC_LEVEL(LOGFS_MAX_LEVELS);
-}
-
-static gc_level_t indirect_block_level(struct logfs_block *block)
-{
-	struct page *page;
-	struct inode *inode;
-	u64 bix;
-	level_t level;
-
-	page = block->page;
-	inode = page->mapping->host;
-	logfs_unpack_index(page->index, &bix, &level);
-	return expand_level(inode->i_ino, level);
-}
-
 /*
  * This silences a false, yet annoying gcc warning.  I hate it when my editor
  * jumps into bitops.h each time I recompile this file.
@@ -586,14 +567,12 @@ static void indirect_free_block(struct super_block *sb,
 
 static struct logfs_block_ops inode_block_ops = {
 	.write_block = inode_write_block,
-	.block_level = inode_block_level,
 	.free_block = inode_free_block,
 	.write_alias = inode_write_alias,
 };
 
 struct logfs_block_ops indirect_block_ops = {
 	.write_block = indirect_write_block,
-	.block_level = indirect_block_level,
 	.free_block = indirect_free_block,
 	.write_alias = indirect_write_alias,
 };
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index 0ecd8f07c11e4..02db22ebbf130 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -182,14 +182,8 @@ static int btree_write_alias(struct super_block *sb, struct logfs_block *block,
 	return 0;
 }
 
-static gc_level_t btree_block_level(struct logfs_block *block)
-{
-	return expand_level(block->ino, block->level);
-}
-
 static struct logfs_block_ops btree_block_ops = {
 	.write_block	= btree_write_block,
-	.block_level	= btree_block_level,
 	.free_block	= __free_block,
 	.write_alias	= btree_write_alias,
 };

From 9358c6d4c0264b1572554c49c4b92673ea9a5c72 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Tue, 30 Mar 2010 13:54:41 -0700
Subject: [PATCH 029/464] ceph: fix dentry rehashing on virtual .snap dir

If a lookup fails on the magic .snap directory, we bind it to a magic
snap directory inode in ceph_lookup_finish().  That code assumes the dentry
is unhashed, but a recent server-side change started returning NULL leases
on lookup failure, causing the .snap dentry to be hashed and NULL by
ceph_fill_trace().

This causes dentry hash chain corruption, or a dies when d_rehash()
includes
	BUG_ON(!d_unhashed(entry));

So, avoid processing the NULL dentry lease if it the dentry matches the
snapdir name in ceph_fill_trace().  That allows the lookup completion to
properly bind it to the snapdir inode.  BUG there if dentry is hashed to
be sure.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/dir.c   |  1 +
 fs/ceph/inode.c | 10 +++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 8a9116e15b701..aed8fda330249 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -488,6 +488,7 @@ struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
 		struct inode *inode = ceph_get_snapdir(parent);
 		dout("ENOENT on snapdir %p '%.*s', linking to snapdir %p\n",
 		     dentry, dentry->d_name.len, dentry->d_name.name, inode);
+		BUG_ON(!d_unhashed(dentry));
 		d_add(dentry, inode);
 		err = 0;
 	}
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index aca82d55cc538..26f883c275e85 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -886,6 +886,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
 	struct inode *in = NULL;
 	struct ceph_mds_reply_inode *ininfo;
 	struct ceph_vino vino;
+	struct ceph_client *client = ceph_sb_to_client(sb);
 	int i = 0;
 	int err = 0;
 
@@ -949,7 +950,14 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
 			return err;
 	}
 
-	if (rinfo->head->is_dentry && !req->r_aborted) {
+	/*
+	 * ignore null lease/binding on snapdir ENOENT, or else we
+	 * will have trouble splicing in the virtual snapdir later
+	 */
+	if (rinfo->head->is_dentry && !req->r_aborted &&
+	    (rinfo->head->is_target || strncmp(req->r_dentry->d_name.name,
+					       client->mount_args->snapdir_name,
+					       req->r_dentry->d_name.len))) {
 		/*
 		 * lookup link rename   : null -> possibly existing inode
 		 * mknod symlink mkdir  : null -> new inode

From d5647c18eac9a313a89a3049a9fff51b20021a44 Mon Sep 17 00:00:00 2001
From: Thara Gopinath <thara@ti.com>
Date: Wed, 31 Mar 2010 04:16:29 -0600
Subject: [PATCH 030/464] OMAP: HWMOD: Adding clockdomain check

This patch adds check for presence of clockdomain structure in the API
omap_hwmod_get_pwrdm before trying to access the powerdomain structure.
This will prevent unnecessary crashing of the system in case of a
clock node with out an associated clockdomain.

Signed-off-by: Thara Gopinath <thara@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index c6649472ce0d1..e436dcb19795c 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1511,6 +1511,9 @@ struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
 		c = oh->slaves[oh->_mpu_port_index]->_clk;
 	}
 
+	if (!c->clkdm)
+		return NULL;
+
 	return c->clkdm->pwrdm.ptr;
 
 }

From 56dc79aba14bad1b73508df9e210e93bbd81a577 Mon Sep 17 00:00:00 2001
From: Thara Gopinath <thara@ti.com>
Date: Wed, 31 Mar 2010 04:16:29 -0600
Subject: [PATCH 031/464] OMAP: HWMOD: Bug fixes in hwmod structure definitions

This patch corrects the width of sysc_flags in hwmod sysconfig structure
where the values to be stored to this variable exceed the current
field width.

Signed-off-by: Thara Gopinath <thara@ti.com>
[paul@pwsan.com: edited to apply; rearranged structure members to pack]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/plat-omap/include/plat/omap_hwmod.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 440b4164f2f65..36d6ea56ab512 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -294,8 +294,8 @@ struct omap_hwmod_class_sysconfig {
 	u16 rev_offs;
 	u16 sysc_offs;
 	u16 syss_offs;
+	u16 sysc_flags;
 	u8 idlemodes;
-	u8 sysc_flags;
 	u8 clockact;
 	struct omap_hwmod_sysc_fields *sysc_fields;
 };

From 766d305fead341889e7b9611fdc97236075a29fb Mon Sep 17 00:00:00 2001
From: Rajendra Nayak <rnayak@ti.com>
Date: Wed, 31 Mar 2010 04:16:30 -0600
Subject: [PATCH 032/464] OMAP4: prcm: Use logical OR instead of bitwise OR

This patch fixes usage of bitwise OR in if conditions, and instead
uses logical OR.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: Abhijit Pagare <abhijitpagare@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/clockdomain.c | 6 +++---
 arch/arm/mach-omap2/powerdomain.c | 2 +-
 arch/arm/mach-omap2/prcm.c        | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index b87ad66f083ee..6e568ec995ee8 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -240,7 +240,7 @@ static void _omap2_clkdm_set_hwsup(struct clockdomain *clkdm, int enable)
 			bits = OMAP24XX_CLKSTCTRL_ENABLE_AUTO;
 		else
 			bits = OMAP24XX_CLKSTCTRL_DISABLE_AUTO;
-	} else if (cpu_is_omap34xx() | cpu_is_omap44xx()) {
+	} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
 		if (enable)
 			bits = OMAP34XX_CLKSTCTRL_ENABLE_AUTO;
 		else
@@ -812,7 +812,7 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm)
 		cm_set_mod_reg_bits(OMAP24XX_FORCESTATE,
 			    clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
 
-	} else if (cpu_is_omap34xx() | cpu_is_omap44xx()) {
+	} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
 
 		u32 bits = (OMAP34XX_CLKSTCTRL_FORCE_SLEEP <<
 			 __ffs(clkdm->clktrctrl_mask));
@@ -856,7 +856,7 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm)
 		cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE,
 			      clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
 
-	} else if (cpu_is_omap34xx() | cpu_is_omap44xx()) {
+	} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
 
 		u32 bits = (OMAP34XX_CLKSTCTRL_FORCE_WAKEUP <<
 			 __ffs(clkdm->clktrctrl_mask));
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 9a0fb385622b9..ebfce7d1a5d37 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -222,7 +222,7 @@ void pwrdm_init(struct powerdomain **pwrdm_list)
 {
 	struct powerdomain **p = NULL;
 
-	if (cpu_is_omap24xx() | cpu_is_omap34xx()) {
+	if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
 		pwrstctrl_reg_offs = OMAP2_PM_PWSTCTRL;
 		pwrstst_reg_offs = OMAP2_PM_PWSTST;
 	} else if (cpu_is_omap44xx()) {
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
index 9537f6f2352db..07a60f1204ca8 100644
--- a/arch/arm/mach-omap2/prcm.c
+++ b/arch/arm/mach-omap2/prcm.c
@@ -123,7 +123,7 @@ struct omap3_prcm_regs prcm_context;
 u32 omap_prcm_get_reset_sources(void)
 {
 	/* XXX This presumably needs modification for 34XX */
-	if (cpu_is_omap24xx() | cpu_is_omap34xx())
+	if (cpu_is_omap24xx() || cpu_is_omap34xx())
 		return prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST) & 0x7f;
 	if (cpu_is_omap44xx())
 		return prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST) & 0x7f;
@@ -157,7 +157,7 @@ void omap_prcm_arch_reset(char mode, const char *cmd)
 	else
 		WARN_ON(1);
 
-	if (cpu_is_omap24xx() | cpu_is_omap34xx())
+	if (cpu_is_omap24xx() || cpu_is_omap34xx())
 		prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
 						 OMAP2_RM_RSTCTRL);
 	if (cpu_is_omap44xx())

From d54a45e2533ef33678dc340298b022a289d2b3e3 Mon Sep 17 00:00:00 2001
From: Ranjith Lohithakshan <ranjithl@ti.com>
Date: Wed, 31 Mar 2010 04:16:30 -0600
Subject: [PATCH 033/464] OMAP3: clock: fix enable bit used for dpll4_m4x2
 clock

The enable bit for dpll4_m4x2 clock should be OMAP3430_PWRDN_DSS1_SHIFT.
The code erroneously uses OMAP3430_PWRDN_CAM_SHIFT which is meant for
dpll4_m5x2 clock.

This came into notice during a recent review of the clock tree.

Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/clock3xxx_data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
index d5153b6bd6cb3..9cba5560519b5 100644
--- a/arch/arm/mach-omap2/clock3xxx_data.c
+++ b/arch/arm/mach-omap2/clock3xxx_data.c
@@ -895,7 +895,7 @@ static struct clk dpll4_m4x2_ck = {
 	.ops		= &clkops_omap2_dflt_wait,
 	.parent		= &dpll4_m4_ck,
 	.enable_reg	= OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN),
-	.enable_bit	= OMAP3430_PWRDN_CAM_SHIFT,
+	.enable_bit	= OMAP3430_PWRDN_DSS1_SHIFT,
 	.flags		= INVERT_ENABLE,
 	.clkdm_name	= "dpll4_clkdm",
 	.recalc		= &omap3_clkoutx2_recalc,

From 499bca9b6d3243f9278a1f5a22d00e67acdd844d Mon Sep 17 00:00:00 2001
From: Amerigo Wang <amwang@redhat.com>
Date: Thu, 4 Mar 2010 03:23:46 -0500
Subject: [PATCH 034/464] [CPUFREQ] fix a lockdep warning

There is no need to do sysfs_remove_link() or kobject_put() etc.
when policy_rwsem_write is held, move them after releasing the lock.

This fixes the lockdep warning:

halt/4071 is trying to acquire lock:
 (s_active){++++.+}, at: [<c0000000001ef868>] .sysfs_addrm_finish+0x58/0xc0

but task is already holding lock:
 (&per_cpu(cpu_policy_rwsem, cpu)){+.+.+.}, at: [<c0000000004cd6ac>] .lock_policy_rwsem_write+0x84/0xf4

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: WANG Cong <amwang@redhat.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
---
 drivers/cpufreq/cpufreq.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 2d5d575e889d5..75d293eeb3ee0 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1113,6 +1113,8 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
 	unsigned int cpu = sys_dev->id;
 	unsigned long flags;
 	struct cpufreq_policy *data;
+	struct kobject *kobj;
+	struct completion *cmp;
 #ifdef CONFIG_SMP
 	struct sys_device *cpu_sys_dev;
 	unsigned int j;
@@ -1141,10 +1143,11 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
 		dprintk("removing link\n");
 		cpumask_clear_cpu(cpu, data->cpus);
 		spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
-		sysfs_remove_link(&sys_dev->kobj, "cpufreq");
+		kobj = &sys_dev->kobj;
 		cpufreq_cpu_put(data);
 		cpufreq_debug_enable_ratelimit();
 		unlock_policy_rwsem_write(cpu);
+		sysfs_remove_link(kobj, "cpufreq");
 		return 0;
 	}
 #endif
@@ -1181,7 +1184,10 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
 				data->governor->name, CPUFREQ_NAME_LEN);
 #endif
 			cpu_sys_dev = get_cpu_sysdev(j);
-			sysfs_remove_link(&cpu_sys_dev->kobj, "cpufreq");
+			kobj = &cpu_sys_dev->kobj;
+			unlock_policy_rwsem_write(cpu);
+			sysfs_remove_link(kobj, "cpufreq");
+			lock_policy_rwsem_write(cpu);
 			cpufreq_cpu_put(data);
 		}
 	}
@@ -1192,19 +1198,22 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
 	if (cpufreq_driver->target)
 		__cpufreq_governor(data, CPUFREQ_GOV_STOP);
 
-	kobject_put(&data->kobj);
+	kobj = &data->kobj;
+	cmp = &data->kobj_unregister;
+	unlock_policy_rwsem_write(cpu);
+	kobject_put(kobj);
 
 	/* we need to make sure that the underlying kobj is actually
 	 * not referenced anymore by anybody before we proceed with
 	 * unloading.
 	 */
 	dprintk("waiting for dropping of refcount\n");
-	wait_for_completion(&data->kobj_unregister);
+	wait_for_completion(cmp);
 	dprintk("wait complete\n");
 
+	lock_policy_rwsem_write(cpu);
 	if (cpufreq_driver->exit)
 		cpufreq_driver->exit(data);
-
 	unlock_policy_rwsem_write(cpu);
 
 	free_cpumask_var(data->related_cpus);

From fd187aaf980c45f1d16a94a846faa68e24de03c8 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Fri, 26 Mar 2010 10:01:34 +0100
Subject: [PATCH 035/464] [CPUFREQ] use max load in conservative governor

Instead of using the load of the last CPU in a package, use the
maximum load of all CPUs in a package.

Reported-by: Jean-Christian Goussard <jeanchristian.goussard@sfr.fr>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Dave Jones <davej@redhat.com>
---
 drivers/cpufreq/cpufreq_conservative.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 599a40b25cb06..3a147874a4656 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -444,6 +444,7 @@ static struct attribute_group dbs_attr_group_old = {
 static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
 {
 	unsigned int load = 0;
+	unsigned int max_load = 0;
 	unsigned int freq_target;
 
 	struct cpufreq_policy *policy;
@@ -501,6 +502,9 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
 			continue;
 
 		load = 100 * (wall_time - idle_time) / wall_time;
+
+		if (load > max_load)
+			max_load = load;
 	}
 
 	/*
@@ -511,7 +515,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
 		return;
 
 	/* Check for frequency increase */
-	if (load > dbs_tuners_ins.up_threshold) {
+	if (max_load > dbs_tuners_ins.up_threshold) {
 		this_dbs_info->down_skip = 0;
 
 		/* if we are already at full speed then break out early */
@@ -538,7 +542,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
 	 * can support the current CPU usage without triggering the up
 	 * policy. To be safe, we focus 10 points under the threshold.
 	 */
-	if (load < (dbs_tuners_ins.down_threshold - 10)) {
+	if (max_load < (dbs_tuners_ins.down_threshold - 10)) {
 		freq_target = (dbs_tuners_ins.freq_step * policy->max) / 100;
 
 		this_dbs_info->requested_freq -= freq_target;

From 80e755fedebc8de0599a79efad2c656503df2e62 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Wed, 31 Mar 2010 21:52:10 -0700
Subject: [PATCH 036/464] ceph: allow writeback of snapped pages older than
 'oldest' snapc

On snap deletion, we don't regenerate ceph_cap_snaps for inodes with dirty
pages because deletion does not affect metadata writeback.  However, we
did run into problems when we went to write back the pages because the
'oldest' snapc is determined by the oldest cap_snap, and that may be the
newer snapc that reflects the deletion.  This caused confusion and an
infinite loop in ceph_update_writeable_page().

Change the snapc checks to allow writeback of any snapc that is equal to
OR older than the 'oldest' snapc.

When there are no cap_snaps, we were also using the realm's latest snapc
for writeback, which complicates ceph_put_wrbufffer_cap_refs().  Instead,
use i_head_snapc, the most snapc used for the most recent ('head') data.
This makes the writeback snapc (ceph_osd_request.r_snapc) _always_ match a
capsnap or i_head_snapc.

Also, in writepags_finish(), drop the snapc referenced by the _page_
and do not assume it matches the request snapc (it may not anymore).

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/addr.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index ce8ef6107727a..a313e9baeed0f 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -356,8 +356,8 @@ static struct ceph_snap_context *__get_oldest_context(struct inode *inode,
 			break;
 		}
 	}
-	if (!snapc && ci->i_snap_realm) {
-		snapc = ceph_get_snap_context(ci->i_snap_realm->cached_context);
+	if (!snapc && ci->i_head_snapc) {
+		snapc = ceph_get_snap_context(ci->i_head_snapc);
 		dout(" head snapc %p has %d dirty pages\n",
 		     snapc, ci->i_wrbuffer_ref_head);
 	}
@@ -412,7 +412,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 		dout("writepage %p page %p not dirty?\n", inode, page);
 		goto out;
 	}
-	if (snapc != get_oldest_context(inode, &snap_size)) {
+	if (snapc->seq > get_oldest_context(inode, &snap_size)->seq) {
 		dout("writepage %p page %p snapc %p not writeable - noop\n",
 		     inode, page, (void *)page->private);
 		/* we should only noop if called by kswapd */
@@ -557,9 +557,9 @@ static void writepages_finish(struct ceph_osd_request *req,
 			dout("inode %p skipping page %p\n", inode, page);
 			wbc->pages_skipped++;
 		}
+		ceph_put_snap_context((void *)page->private);
 		page->private = 0;
 		ClearPagePrivate(page);
-		ceph_put_snap_context(snapc);
 		dout("unlocking %d %p\n", i, page);
 		end_page_writeback(page);
 
@@ -617,7 +617,7 @@ static int ceph_writepages_start(struct address_space *mapping,
 	int range_whole = 0;
 	int should_loop = 1;
 	pgoff_t max_pages = 0, max_pages_ever = 0;
-	struct ceph_snap_context *snapc = NULL, *last_snapc = NULL;
+	struct ceph_snap_context *snapc = NULL, *last_snapc = NULL, *pgsnapc;
 	struct pagevec pvec;
 	int done = 0;
 	int rc = 0;
@@ -769,9 +769,10 @@ static int ceph_writepages_start(struct address_space *mapping,
 			}
 
 			/* only if matching snap context */
-			if (snapc != (void *)page->private) {
-				dout("page snapc %p != oldest %p\n",
-				     (void *)page->private, snapc);
+			pgsnapc = (void *)page->private;
+			if (pgsnapc->seq > snapc->seq) {
+				dout("page snapc %p %lld > oldest %p %lld\n",
+				     pgsnapc, pgsnapc->seq, snapc, snapc->seq);
 				unlock_page(page);
 				if (!locked_pages)
 					continue; /* keep looking for snap */
@@ -935,8 +936,8 @@ static int ceph_update_writeable_page(struct file *file,
 	int pos_in_page = pos & ~PAGE_CACHE_MASK;
 	int end_in_page = pos_in_page + len;
 	loff_t i_size;
-	struct ceph_snap_context *snapc;
 	int r;
+	struct ceph_snap_context *snapc, *oldest;
 
 retry_locked:
 	/* writepages currently holds page lock, but if we change that later, */
@@ -946,16 +947,16 @@ static int ceph_update_writeable_page(struct file *file,
 	BUG_ON(!ci->i_snap_realm);
 	down_read(&mdsc->snap_rwsem);
 	BUG_ON(!ci->i_snap_realm->cached_context);
-	if (page->private &&
-	    (void *)page->private != ci->i_snap_realm->cached_context) {
+	snapc = (void *)page->private;
+	if (snapc && snapc != ci->i_head_snapc) {
 		/*
 		 * this page is already dirty in another (older) snap
 		 * context!  is it writeable now?
 		 */
-		snapc = get_oldest_context(inode, NULL);
+		oldest = get_oldest_context(inode, NULL);
 		up_read(&mdsc->snap_rwsem);
 
-		if (snapc != (void *)page->private) {
+		if (snapc->seq > oldest->seq) {
 			dout(" page %p snapc %p not current or oldest\n",
 			     page, (void *)page->private);
 			/*

From 6298a33757ba7361bb8f506c106daad77e5ac8cf Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Wed, 31 Mar 2010 22:01:38 -0700
Subject: [PATCH 037/464] ceph: fix snap context reference leaks

The get_oldest_context() helper takes a reference to the returned snap
context, but most callers weren't dropping that reference.  Fix them.

Also drop the unused locked __get_oldest_context() variant.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/addr.c | 37 +++++++++++++++++--------------------
 1 file changed, 17 insertions(+), 20 deletions(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index a313e9baeed0f..41f1f713b7ba9 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -336,16 +336,15 @@ static int ceph_readpages(struct file *file, struct address_space *mapping,
 /*
  * Get ref for the oldest snapc for an inode with dirty data... that is, the
  * only snap context we are allowed to write back.
- *
- * Caller holds i_lock.
  */
-static struct ceph_snap_context *__get_oldest_context(struct inode *inode,
-						      u64 *snap_size)
+static struct ceph_snap_context *get_oldest_context(struct inode *inode,
+						    u64 *snap_size)
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	struct ceph_snap_context *snapc = NULL;
 	struct ceph_cap_snap *capsnap = NULL;
 
+	spin_lock(&inode->i_lock);
 	list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
 		dout(" cap_snap %p snapc %p has %d dirty pages\n", capsnap,
 		     capsnap->context, capsnap->dirty_pages);
@@ -361,16 +360,6 @@ static struct ceph_snap_context *__get_oldest_context(struct inode *inode,
 		dout(" head snapc %p has %d dirty pages\n",
 		     snapc, ci->i_wrbuffer_ref_head);
 	}
-	return snapc;
-}
-
-static struct ceph_snap_context *get_oldest_context(struct inode *inode,
-						    u64 *snap_size)
-{
-	struct ceph_snap_context *snapc = NULL;
-
-	spin_lock(&inode->i_lock);
-	snapc = __get_oldest_context(inode, snap_size);
 	spin_unlock(&inode->i_lock);
 	return snapc;
 }
@@ -391,7 +380,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 	int len = PAGE_CACHE_SIZE;
 	loff_t i_size;
 	int err = 0;
-	struct ceph_snap_context *snapc;
+	struct ceph_snap_context *snapc, *oldest;
 	u64 snap_size = 0;
 	long writeback_stat;
 
@@ -412,13 +401,16 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 		dout("writepage %p page %p not dirty?\n", inode, page);
 		goto out;
 	}
-	if (snapc->seq > get_oldest_context(inode, &snap_size)->seq) {
+	oldest = get_oldest_context(inode, &snap_size);
+	if (snapc->seq > oldest->seq) {
 		dout("writepage %p page %p snapc %p not writeable - noop\n",
 		     inode, page, (void *)page->private);
 		/* we should only noop if called by kswapd */
 		WARN_ON((current->flags & PF_MEMALLOC) == 0);
+		ceph_put_snap_context(oldest);
 		goto out;
 	}
+	ceph_put_snap_context(oldest);
 
 	/* is this a partial page at end of file? */
 	if (snap_size)
@@ -457,7 +449,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 	ClearPagePrivate(page);
 	end_page_writeback(page);
 	ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
-	ceph_put_snap_context(snapc);
+	ceph_put_snap_context(snapc);  /* page's reference */
 out:
 	return err;
 }
@@ -914,7 +906,10 @@ static int context_is_writeable_or_written(struct inode *inode,
 					   struct ceph_snap_context *snapc)
 {
 	struct ceph_snap_context *oldest = get_oldest_context(inode, NULL);
-	return !oldest || snapc->seq <= oldest->seq;
+	int ret = !oldest || snapc->seq <= oldest->seq;
+
+	ceph_put_snap_context(oldest);
+	return ret;
 }
 
 /*
@@ -957,13 +952,14 @@ static int ceph_update_writeable_page(struct file *file,
 		up_read(&mdsc->snap_rwsem);
 
 		if (snapc->seq > oldest->seq) {
+			ceph_put_snap_context(oldest);
 			dout(" page %p snapc %p not current or oldest\n",
-			     page, (void *)page->private);
+			     page, snapc);
 			/*
 			 * queue for writeback, and wait for snapc to
 			 * be writeable or written
 			 */
-			snapc = ceph_get_snap_context((void *)page->private);
+			snapc = ceph_get_snap_context(snapc);
 			unlock_page(page);
 			ceph_queue_writeback(inode);
 			r = wait_event_interruptible(ci->i_cap_wq,
@@ -973,6 +969,7 @@ static int ceph_update_writeable_page(struct file *file,
 				return r;
 			return -EAGAIN;
 		}
+		ceph_put_snap_context(oldest);
 
 		/* yay, writeable, do it now (without dropping page lock) */
 		dout(" page %p snapc %p not current, but oldest\n",

From 819ccbfa448403992ceafc05d6d7097aaa74d4c3 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Thu, 1 Apr 2010 09:33:46 -0700
Subject: [PATCH 038/464] ceph: fix leaked inode ref due to snap metadata
 writeback race

We create a ceph_cap_snap if there is dirty cap metadata (for writeback to
mds) OR dirty pages (for writeback to osd).  It is thus possible that the
metadata has been written back to the MDS but the OSD data has not when
the cap_snap is created.  This results in a cap_snap with dirty(caps) == 0.
The problem is that cap writeback to the MDS isn't necessary, and a
FLUSHSNAP cap op gets no ack from the MDS.  This leaves the cap_snap
attached to the inode along with its inode reference.

Fix the problem by dropping the cap_snap if it becomes 'complete' (all
pages written out) and dirty(caps) == 0 in ceph_put_wrbuffer_cap_refs().

Also, BUG() in __ceph_flush_snaps() if we encounter a cap_snap with
dirty(caps) == 0.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/caps.c | 42 ++++++++++++++++++++++++++++++++----------
 fs/ceph/snap.c | 10 ++++++----
 2 files changed, 38 insertions(+), 14 deletions(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 7d0a0d0adc18f..b6fdf010749b8 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1204,6 +1204,12 @@ void __ceph_flush_snaps(struct ceph_inode_info *ci,
 		if (capsnap->dirty_pages || capsnap->writing)
 			continue;
 
+		/*
+		 * if cap writeback already occurred, we should have dropped
+		 * the capsnap in ceph_put_wrbuffer_cap_refs.
+		 */
+		BUG_ON(capsnap->dirty == 0);
+
 		/* pick mds, take s_mutex */
 		mds = __ceph_get_cap_mds(ci, &mseq);
 		if (session && session->s_mds != mds) {
@@ -2117,8 +2123,8 @@ void ceph_put_cap_refs(struct ceph_inode_info *ci, int had)
 		}
 	spin_unlock(&inode->i_lock);
 
-	dout("put_cap_refs %p had %s %s\n", inode, ceph_cap_string(had),
-	     last ? "last" : "");
+	dout("put_cap_refs %p had %s%s%s\n", inode, ceph_cap_string(had),
+	     last ? " last" : "", put ? " put" : "");
 
 	if (last && !flushsnaps)
 		ceph_check_caps(ci, 0, NULL);
@@ -2142,7 +2148,8 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
 {
 	struct inode *inode = &ci->vfs_inode;
 	int last = 0;
-	int last_snap = 0;
+	int complete_capsnap = 0;
+	int drop_capsnap = 0;
 	int found = 0;
 	struct ceph_cap_snap *capsnap = NULL;
 
@@ -2165,19 +2172,32 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
 		list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
 			if (capsnap->context == snapc) {
 				found = 1;
-				capsnap->dirty_pages -= nr;
-				last_snap = !capsnap->dirty_pages;
 				break;
 			}
 		}
 		BUG_ON(!found);
+		capsnap->dirty_pages -= nr;
+		if (capsnap->dirty_pages == 0) {
+			complete_capsnap = 1;
+			if (capsnap->dirty == 0)
+				/* cap writeback completed before we created
+				 * the cap_snap; no FLUSHSNAP is needed */
+				drop_capsnap = 1;
+		}
 		dout("put_wrbuffer_cap_refs on %p cap_snap %p "
-		     " snap %lld %d/%d -> %d/%d %s%s\n",
+		     " snap %lld %d/%d -> %d/%d %s%s%s\n",
 		     inode, capsnap, capsnap->context->seq,
 		     ci->i_wrbuffer_ref+nr, capsnap->dirty_pages + nr,
 		     ci->i_wrbuffer_ref, capsnap->dirty_pages,
 		     last ? " (wrbuffer last)" : "",
-		     last_snap ? " (capsnap last)" : "");
+		     complete_capsnap ? " (complete capsnap)" : "",
+		     drop_capsnap ? " (drop capsnap)" : "");
+		if (drop_capsnap) {
+			ceph_put_snap_context(capsnap->context);
+			list_del(&capsnap->ci_item);
+			list_del(&capsnap->flushing_item);
+			ceph_put_cap_snap(capsnap);
+		}
 	}
 
 	spin_unlock(&inode->i_lock);
@@ -2185,10 +2205,12 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
 	if (last) {
 		ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
 		iput(inode);
-	} else if (last_snap) {
+	} else if (complete_capsnap) {
 		ceph_flush_snaps(ci);
 		wake_up(&ci->i_cap_wq);
 	}
+	if (drop_capsnap)
+		iput(inode);
 }
 
 /*
@@ -2464,8 +2486,8 @@ static void handle_cap_flushsnap_ack(struct inode *inode, u64 flush_tid,
 				break;
 			}
 			WARN_ON(capsnap->dirty_pages || capsnap->writing);
-			dout(" removing cap_snap %p follows %lld\n",
-			     capsnap, follows);
+			dout(" removing %p cap_snap %p follows %lld\n",
+			     inode, capsnap, follows);
 			ceph_put_snap_context(capsnap->context);
 			list_del(&capsnap->ci_item);
 			list_del(&capsnap->flushing_item);
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index df04e210a055b..7e3e5f9edaa41 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -521,15 +521,17 @@ int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
 	capsnap->ctime = inode->i_ctime;
 	capsnap->time_warp_seq = ci->i_time_warp_seq;
 	if (capsnap->dirty_pages) {
-		dout("finish_cap_snap %p cap_snap %p snapc %p %llu s=%llu "
+		dout("finish_cap_snap %p cap_snap %p snapc %p %llu %s s=%llu "
 		     "still has %d dirty pages\n", inode, capsnap,
 		     capsnap->context, capsnap->context->seq,
-		     capsnap->size, capsnap->dirty_pages);
+		     ceph_cap_string(capsnap->dirty), capsnap->size,
+		     capsnap->dirty_pages);
 		return 0;
 	}
-	dout("finish_cap_snap %p cap_snap %p snapc %p %llu s=%llu clean\n",
+	dout("finish_cap_snap %p cap_snap %p snapc %p %llu %s s=%llu\n",
 	     inode, capsnap, capsnap->context,
-	     capsnap->context->seq, capsnap->size);
+	     capsnap->context->seq, ceph_cap_string(capsnap->dirty),
+	     capsnap->size);
 
 	spin_lock(&mdsc->snap_flush_lock);
 	list_add_tail(&ci->i_snap_flush_item, &mdsc->snap_flush_list);

From dd48744964296b5713032ea1d66eb9e3d990e287 Mon Sep 17 00:00:00 2001
From: Zhu Yi <yi.zhu@intel.com>
Date: Mon, 22 Mar 2010 02:28:41 -0700
Subject: [PATCH 039/464] iwlwifi: fix DMA allocation warnings

Below warning is triggered sometimes at module removal time when
CONFIG_DMA_API_DEBUG is enabled. This should be caused by we didn't
unmap pending commands (enqueued, but no complete notification
received) for the Tx command queue.

[ 1583.107469] ------------[ cut here ]------------
[ 1583.107539] WARNING: at lib/dma-debug.c:688
dma_debug_device_change+0x13c/0x180()
[ 1583.107617] Hardware name: ...
[ 1583.107664] pci 0000:04:00.0: DMA-API: device driver has pending DMA
allocations while released from device [count=1]
[ 1583.107713] Modules linked in: ...
[ 1583.111661] Pid: 16970, comm: modprobe Tainted: G        W
2.6.34-rc1-wl #33
[ 1583.111727] Call Trace:
[ 1583.111779]  [<c02a281c>] ? dma_debug_device_change+0x13c/0x180
[ 1583.111833]  [<c02a281c>] ? dma_debug_device_change+0x13c/0x180
[ 1583.111908]  [<c0138e11>] warn_slowpath_common+0x71/0xd0
[ 1583.111963]  [<c02a281c>] ? dma_debug_device_change+0x13c/0x180
[ 1583.112016]  [<c0138ebb>] warn_slowpath_fmt+0x2b/0x30
[ 1583.112086]  [<c02a281c>] dma_debug_device_change+0x13c/0x180
[ 1583.112142]  [<c03e6c33>] notifier_call_chain+0x53/0x90
[ 1583.112198]  [<c03e1ebe>] ? down_read+0x6e/0x90
[ 1583.112271]  [<c015b229>] __blocking_notifier_call_chain+0x49/0x70
[ 1583.112326]  [<c015b26f>] blocking_notifier_call_chain+0x1f/0x30
[ 1583.112380]  [<c031931c>] __device_release_driver+0x8c/0xa0
[ 1583.112451]  [<c03193bf>] driver_detach+0x8f/0xa0
[ 1583.112538]  [<c0318382>] bus_remove_driver+0x82/0x100
[ 1583.112595]  [<c0319ad9>] driver_unregister+0x49/0x80
[ 1583.112671]  [<c024feb2>] ? sysfs_remove_file+0x12/0x20
[ 1583.112727]  [<c02aa292>] pci_unregister_driver+0x32/0x80
[ 1583.112791]  [<fc13a3c1>] iwl_exit+0x12/0x19 [iwlagn]
[ 1583.112848]  [<c017940a>] sys_delete_module+0x15a/0x210
[ 1583.112870]  [<c015a5db>] ? up_read+0x1b/0x30
[ 1583.112893]  [<c029600c>] ? trace_hardirqs_off_thunk+0xc/0x10
[ 1583.112924]  [<c0295ffc>] ? trace_hardirqs_on_thunk+0xc/0x10
[ 1583.112947]  [<c03e6a1f>] ? do_page_fault+0x1ff/0x3c0
[ 1583.112978]  [<c03e36f6>] ? restore_all_notrace+0x0/0x18
[ 1583.113002]  [<c016aa70>] ? trace_hardirqs_on_caller+0x20/0x190
[ 1583.113025]  [<c0102d58>] sysenter_do_call+0x12/0x38
[ 1583.113054] ---[ end trace fc23e059cc4c2ced ]---

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c | 48 +++++++++++++++++++++++++--
 1 file changed, 45 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 8c12311dbb0a5..6aa309032f4e7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -193,10 +193,34 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
 	struct iwl_queue *q = &txq->q;
 	struct device *dev = &priv->pci_dev->dev;
 	int i;
+	bool huge = false;
 
 	if (q->n_bd == 0)
 		return;
 
+	for (; q->read_ptr != q->write_ptr;
+	     q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+		/* we have no way to tell if it is a huge cmd ATM */
+		i = get_cmd_index(q, q->read_ptr, 0);
+
+		if (txq->meta[i].flags & CMD_SIZE_HUGE) {
+			huge = true;
+			continue;
+		}
+
+		pci_unmap_single(priv->pci_dev,
+				 pci_unmap_addr(&txq->meta[i], mapping),
+				 pci_unmap_len(&txq->meta[i], len),
+				 PCI_DMA_BIDIRECTIONAL);
+	}
+	if (huge) {
+		i = q->n_window;
+		pci_unmap_single(priv->pci_dev,
+				 pci_unmap_addr(&txq->meta[i], mapping),
+				 pci_unmap_len(&txq->meta[i], len),
+				 PCI_DMA_BIDIRECTIONAL);
+	}
+
 	/* De-alloc array of command/tx buffers */
 	for (i = 0; i <= TFD_CMD_SLOTS; i++)
 		kfree(txq->cmd[i]);
@@ -1049,6 +1073,14 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 
 	spin_lock_irqsave(&priv->hcmd_lock, flags);
 
+	/* If this is a huge cmd, mark the huge flag also on the meta.flags
+	 * of the _original_ cmd. This is used for DMA mapping clean up.
+	 */
+	if (cmd->flags & CMD_SIZE_HUGE) {
+		idx = get_cmd_index(q, q->write_ptr, 0);
+		txq->meta[idx].flags = CMD_SIZE_HUGE;
+	}
+
 	idx = get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
 	out_cmd = txq->cmd[idx];
 	out_meta = &txq->meta[idx];
@@ -1226,6 +1258,7 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 	bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
 	struct iwl_device_cmd *cmd;
 	struct iwl_cmd_meta *meta;
+	struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
 
 	/* If a Tx command is being handled and it isn't in the actual
 	 * command queue then there a command routing bug has been introduced
@@ -1239,9 +1272,17 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 		return;
 	}
 
-	cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
-	cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
-	meta = &priv->txq[IWL_CMD_QUEUE_NUM].meta[cmd_index];
+	/* If this is a huge cmd, clear the huge flag on the meta.flags
+	 * of the _original_ cmd. So that iwl_cmd_queue_free won't unmap
+	 * the DMA buffer for the scan (huge) command.
+	 */
+	if (huge) {
+		cmd_index = get_cmd_index(&txq->q, index, 0);
+		txq->meta[cmd_index].flags = 0;
+	}
+	cmd_index = get_cmd_index(&txq->q, index, huge);
+	cmd = txq->cmd[cmd_index];
+	meta = &txq->meta[cmd_index];
 
 	pci_unmap_single(priv->pci_dev,
 			 pci_unmap_addr(meta, mapping),
@@ -1263,6 +1304,7 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 			       get_cmd_string(cmd->hdr.cmd));
 		wake_up_interruptible(&priv->wait_command_queue);
 	}
+	meta->flags = 0;
 }
 EXPORT_SYMBOL(iwl_tx_cmd_complete);
 

From 04f2dec1c3d375c4072613880f28f43b66524876 Mon Sep 17 00:00:00 2001
From: Shanyu Zhao <shanyu.zhao@intel.com>
Date: Fri, 19 Mar 2010 13:34:45 -0700
Subject: [PATCH 040/464] iwlwifi: use consistent table for tx data collect

When collecting tx data for non-aggregation packets in rate scaling, if
the tx data matches "other table", it still uses current table to update
the stats and calculate average throughput in function rs_collect_tx_data().
This can mess up the rate scaling data structure and cause a kernel panic
in a BUG_ON statement in rs_rate_scale_perform().

To fix this bug, we pass table pointer instead of window pointer (pointed
to by table pointer) to function rs_collect_tx_data() so that the table
being used is consistent.

Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Henry Zhang <hongx.c.zhang@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 55 ++++++++++-------------
 1 file changed, 24 insertions(+), 31 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 8bf7c20b9d392..be00cb3b1d0e8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -345,6 +345,17 @@ static inline int get_num_of_ant_from_rate(u32 rate_n_flags)
 	       !!(rate_n_flags & RATE_MCS_ANT_C_MSK);
 }
 
+/*
+ * Static function to get the expected throughput from an iwl_scale_tbl_info
+ * that wraps a NULL pointer check
+ */
+static s32 get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index)
+{
+	if (tbl->expected_tpt)
+		return tbl->expected_tpt[rs_index];
+	return 0;
+}
+
 /**
  * rs_collect_tx_data - Update the success/failure sliding window
  *
@@ -352,19 +363,21 @@ static inline int get_num_of_ant_from_rate(u32 rate_n_flags)
  * at this rate.  window->data contains the bitmask of successful
  * packets.
  */
-static int rs_collect_tx_data(struct iwl_rate_scale_data *windows,
-			      int scale_index, s32 tpt, int attempts,
-			      int successes)
+static int rs_collect_tx_data(struct iwl_scale_tbl_info *tbl,
+			      int scale_index, int attempts, int successes)
 {
 	struct iwl_rate_scale_data *window = NULL;
 	static const u64 mask = (((u64)1) << (IWL_RATE_MAX_WINDOW - 1));
-	s32 fail_count;
+	s32 fail_count, tpt;
 
 	if (scale_index < 0 || scale_index >= IWL_RATE_COUNT)
 		return -EINVAL;
 
 	/* Select window for current tx bit rate */
-	window = &(windows[scale_index]);
+	window = &(tbl->win[scale_index]);
+
+	/* Get expected throughput */
+	tpt = get_expected_tpt(tbl, scale_index);
 
 	/*
 	 * Keep track of only the latest 62 tx frame attempts in this rate's
@@ -738,16 +751,6 @@ static bool table_type_matches(struct iwl_scale_tbl_info *a,
 	return (a->lq_type == b->lq_type) && (a->ant_type == b->ant_type) &&
 		(a->is_SGI == b->is_SGI);
 }
-/*
- * Static function to get the expected throughput from an iwl_scale_tbl_info
- * that wraps a NULL pointer check
- */
-static s32 get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index)
-{
-	if (tbl->expected_tpt)
-		return tbl->expected_tpt[rs_index];
-	return 0;
-}
 
 /*
  * mac80211 sends us Tx status
@@ -764,12 +767,10 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct iwl_rate_scale_data *window = NULL;
 	enum mac80211_rate_control_flags mac_flags;
 	u32 tx_rate;
 	struct iwl_scale_tbl_info tbl_type;
-	struct iwl_scale_tbl_info *curr_tbl, *other_tbl;
-	s32 tpt = 0;
+	struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl;
 
 	IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n");
 
@@ -852,7 +853,6 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 		IWL_DEBUG_RATE(priv, "Neither active nor search matches tx rate\n");
 		return;
 	}
-	window = (struct iwl_rate_scale_data *)&(curr_tbl->win[0]);
 
 	/*
 	 * Updating the frame history depends on whether packets were
@@ -865,8 +865,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 		tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags);
 		rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type,
 				&rs_index);
-		tpt = get_expected_tpt(curr_tbl, rs_index);
-		rs_collect_tx_data(window, rs_index, tpt,
+		rs_collect_tx_data(curr_tbl, rs_index,
 				   info->status.ampdu_ack_len,
 				   info->status.ampdu_ack_map);
 
@@ -896,19 +895,13 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 			 * table as active/search.
 			 */
 			if (table_type_matches(&tbl_type, curr_tbl))
-				tpt = get_expected_tpt(curr_tbl, rs_index);
+				tmp_tbl = curr_tbl;
 			else if (table_type_matches(&tbl_type, other_tbl))
-				tpt = get_expected_tpt(other_tbl, rs_index);
+				tmp_tbl = other_tbl;
 			else
 				continue;
-
-			/* Constants mean 1 transmission, 0 successes */
-			if (i < retries)
-				rs_collect_tx_data(window, rs_index, tpt, 1,
-						0);
-			else
-				rs_collect_tx_data(window, rs_index, tpt, 1,
-						legacy_success);
+			rs_collect_tx_data(tmp_tbl, rs_index, 1,
+					   i < retries ? 0 : legacy_success);
 		}
 
 		/* Update success/fail counts if not searching for new mode */

From de0f60ea94e132c858caa64a44b2012e1e8580b0 Mon Sep 17 00:00:00 2001
From: Zhu Yi <yi.zhu@intel.com>
Date: Tue, 23 Mar 2010 00:45:03 -0700
Subject: [PATCH 041/464] iwlwifi: avoid Tx queue memory allocation in
 interface down

We used to free all the Tx queues memory when interface is brought
down and reallocate them again in interface up. This requires
order-4 allocation for txq->cmd[]. In situations like s2ram, this
usually leads to allocation failure in the memory subsystem. The
patch fixed this problem by allocating the Tx queues memory only at
the first time. Later iwl_down/iwl_up only initialize but don't
free and reallocate them. The memory is freed at the device removal
time. BTW, we have already done this for the Rx queue.

This fixed bug https://bugzilla.kernel.org/show_bug.cgi?id=15551

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 11 +++--
 drivers/net/wireless/iwlwifi/iwl-core.h |  5 ++-
 drivers/net/wireless/iwlwifi/iwl-tx.c   | 59 ++++++++++++++++++++-----
 3 files changed, 60 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 112149e9b31e4..894bcb8b8b37d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -307,10 +307,13 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	/* Allocate and init all Tx and Command queues */
-	ret = iwl_txq_ctx_reset(priv);
-	if (ret)
-		return ret;
+	/* Allocate or reset and init all Tx and Command queues */
+	if (!priv->txq) {
+		ret = iwl_txq_ctx_alloc(priv);
+		if (ret)
+			return ret;
+	} else
+		iwl_txq_ctx_reset(priv);
 
 	set_bit(STATUS_INIT, &priv->status);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 4ef7739f9e8e6..732590f5fe30c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -442,7 +442,8 @@ void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 /*****************************************************
 * TX
 ******************************************************/
-int iwl_txq_ctx_reset(struct iwl_priv *priv);
+int iwl_txq_ctx_alloc(struct iwl_priv *priv);
+void iwl_txq_ctx_reset(struct iwl_priv *priv);
 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 				 struct iwl_tx_queue *txq,
@@ -456,6 +457,8 @@ void iwl_free_tfds_in_queue(struct iwl_priv *priv,
 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 		      int slots_num, u32 txq_id);
+void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+			int slots_num, u32 txq_id);
 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
 int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 6aa309032f4e7..343d81ad26530 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -433,6 +433,26 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 }
 EXPORT_SYMBOL(iwl_tx_queue_init);
 
+void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+			int slots_num, u32 txq_id)
+{
+	int actual_slots = slots_num;
+
+	if (txq_id == IWL_CMD_QUEUE_NUM)
+		actual_slots++;
+
+	memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * actual_slots);
+
+	txq->need_update = 0;
+
+	/* Initialize queue's high/low-water marks, and head/tail indexes */
+	iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+
+	/* Tell device where to find queue */
+	priv->cfg->ops->lib->txq_init(priv, txq);
+}
+EXPORT_SYMBOL(iwl_tx_queue_reset);
+
 /**
  * iwl_hw_txq_ctx_free - Free TXQ Context
  *
@@ -444,8 +464,7 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
 
 	/* Tx queues */
 	if (priv->txq) {
-		for (txq_id = 0; txq_id < priv->hw_params.max_txq_num;
-		     txq_id++)
+		for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
 			if (txq_id == IWL_CMD_QUEUE_NUM)
 				iwl_cmd_queue_free(priv);
 			else
@@ -461,15 +480,15 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
 EXPORT_SYMBOL(iwl_hw_txq_ctx_free);
 
 /**
- * iwl_txq_ctx_reset - Reset TX queue context
- * Destroys all DMA structures and initialize them again
+ * iwl_txq_ctx_alloc - allocate TX queue context
+ * Allocate all Tx DMA structures and initialize them
  *
  * @param priv
  * @return error code
  */
-int iwl_txq_ctx_reset(struct iwl_priv *priv)
+int iwl_txq_ctx_alloc(struct iwl_priv *priv)
 {
-	int ret = 0;
+	int ret;
 	int txq_id, slots_num;
 	unsigned long flags;
 
@@ -527,8 +546,31 @@ int iwl_txq_ctx_reset(struct iwl_priv *priv)
 	return ret;
 }
 
+void iwl_txq_ctx_reset(struct iwl_priv *priv)
+{
+	int txq_id, slots_num;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	/* Turn off all Tx DMA fifos */
+	priv->cfg->ops->lib->txq_set_sched(priv, 0);
+
+	/* Tell NIC where to find the "keep warm" buffer */
+	iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* Alloc and init all Tx queues, including the command queue (#4) */
+	for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
+		slots_num = txq_id == IWL_CMD_QUEUE_NUM ?
+			    TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+		iwl_tx_queue_reset(priv, &priv->txq[txq_id], slots_num, txq_id);
+	}
+}
+
 /**
- * iwl_txq_ctx_stop - Stop all Tx DMA channels, free Tx queue memory
+ * iwl_txq_ctx_stop - Stop all Tx DMA channels
  */
 void iwl_txq_ctx_stop(struct iwl_priv *priv)
 {
@@ -548,9 +590,6 @@ void iwl_txq_ctx_stop(struct iwl_priv *priv)
 				    1000);
 	}
 	spin_unlock_irqrestore(&priv->lock, flags);
-
-	/* Deallocate memory for all Tx queues */
-	iwl_hw_txq_ctx_free(priv);
 }
 EXPORT_SYMBOL(iwl_txq_ctx_stop);
 

From 0e0d5e0c4bb0476d53a43bfc87d03a25ec4b5579 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Fri, 2 Apr 2010 16:07:19 -0700
Subject: [PATCH 042/464] ceph: fix ack counter reset on connection reset

If in_seq_acked isn't reset along with in_seq, we don't ack received
messages until we reach the old count, consuming gobs memory on the other
end of the connection and introducing a large delay when those messages
are eventually deleted.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/messenger.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index a32f0f896d9f3..f35b4945a9c3a 100644
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -332,6 +332,7 @@ static void reset_connection(struct ceph_connection *con)
 		con->out_msg = NULL;
 	}
 	con->in_seq = 0;
+	con->in_seq_acked = 0;
 }
 
 /*

From 9875557ee8247c3f7390d378c027b45c7535a224 Mon Sep 17 00:00:00 2001
From: Stefan Bader <stefan.bader@canonical.com>
Date: Mon, 29 Mar 2010 17:53:12 +0200
Subject: [PATCH 043/464] drm/i915: Add no_lvds entry for the Clientron U800

BugLink: http://bugs.launchpad.net/ubuntu/bugs/544671

This system claims to have a LVDS but has not.

Signed-off-by: Stephane Graber <stgraber@ubuntu.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
CC: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_lvds.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 9d99ddca17ef7..8238b408644e2 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -857,6 +857,14 @@ static const struct dmi_system_id intel_no_lvds[] = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"),
 		},
 	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Clientron U800",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "U800"),
+		},
+	},
 
 	{ }	/* terminating entry */
 };

From 8b472d739b2ddd8ab7fb278874f696cd95b25a5e Mon Sep 17 00:00:00 2001
From: Curt Wohlgemuth <curtw@google.com>
Date: Sat, 3 Apr 2010 16:45:06 -0400
Subject: [PATCH 044/464] ext4: Fix possible lost inode write in no journal
 mode

In the no-journal case, ext4_write_inode() will fetch the bh and call
sync_dirty_buffer() on it.  However, if the bh has already been
written and the bh reclaimed for some other purpose, AND if the inode
is the only one in the inode table block in use, then
ext4_get_inode_loc() will not read the inode table block from disk,
but as an optimization, fill the block with zero's assuming that its
caller will copy in the on-disk version of the inode.  This is not
done by ext4_write_inode(), so the contents of the inode can simply
get lost.  The fix is to use __ext4_get_inode_loc() with in_mem set to
0, instead of ext4_get_inode_loc().  Long term the API needs to be
fixed so it's obvious why latter is not safe.

Addresses-Google-Bug: #2526446

Signed-off-by: Curt Wohlgemuth <curtw@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 11119e07233b7..87e3c70d0692b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5374,7 +5374,7 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
 	} else {
 		struct ext4_iloc iloc;
 
-		err = ext4_get_inode_loc(inode, &iloc);
+		err = __ext4_get_inode_loc(inode, &iloc, 0);
 		if (err)
 			return err;
 		if (wbc->sync_mode == WB_SYNC_ALL)

From fd2dd9fbaf9e498ec63eef298921e36556f7214c Mon Sep 17 00:00:00 2001
From: Curt Wohlgemuth <curtw@google.com>
Date: Sat, 3 Apr 2010 17:44:16 -0400
Subject: [PATCH 045/464] ext4: Fix buffer head leaks after calls to
 ext4_get_inode_loc()

Calls to ext4_get_inode_loc() returns with a reference to a buffer
head in iloc->bh.  The callers of this function in ext4_write_inode()
when in no journal mode and in ext4_xattr_fiemap() don't release the
buffer head after using it.

Addresses-Google-Bug: #2548165

Signed-off-by: Curt Wohlgemuth <curtw@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/extents.c | 1 +
 fs/ext4/inode.c   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 94c8ee81f5e1e..236b834b4ca81 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3879,6 +3879,7 @@ static int ext4_xattr_fiemap(struct inode *inode,
 		physical += offset;
 		length = EXT4_SB(inode->i_sb)->s_inode_size - offset;
 		flags |= FIEMAP_EXTENT_DATA_INLINE;
+		brelse(iloc.bh);
 	} else { /* external block */
 		physical = EXT4_I(inode)->i_file_acl << blockbits;
 		length = inode->i_sb->s_blocksize;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 87e3c70d0692b..ba1eee847e321 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5385,6 +5385,7 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
 				   (unsigned long long)iloc.bh->b_blocknr);
 			err = -EIO;
 		}
+		brelse(iloc.bh);
 	}
 	return err;
 }

From 2c860a1101471a69f7a6778b7b1fb43344c38619 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Mon, 5 Apr 2010 22:29:09 -0700
Subject: [PATCH 046/464] Input: i8042 - spelling fix

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/serio/i8042.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index fce8ab7e89a18..90e56684f5131 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -38,7 +38,7 @@ MODULE_PARM_DESC(noaux, "Do not probe or use AUX (mouse) port.");
 
 static bool i8042_nomux;
 module_param_named(nomux, i8042_nomux, bool, 0);
-MODULE_PARM_DESC(nomux, "Do not check whether an active multiplexing conrtoller is present.");
+MODULE_PARM_DESC(nomux, "Do not check whether an active multiplexing controller is present.");
 
 static bool i8042_unlock;
 module_param_named(unlock, i8042_unlock, bool, 0);

From 5e28d8eb68c12eab9c4a47b42ba993a6420d71d3 Mon Sep 17 00:00:00 2001
From: Chase Douglas <chase.douglas@canonical.com>
Date: Mon, 5 Apr 2010 22:29:08 -0700
Subject: [PATCH 047/464] Input: ALPS - add signature for HP Pavilion dm3
 laptops

Tested by a user running Ubuntu 9.10 in the following bug report.

BugLink: http://bugs.launchpad.net/bugs/545307

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/mouse/alps.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 7490f1da4a532..2a791e0ef970d 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -63,6 +63,7 @@ static const struct alps_model_info alps_model_data[] = {
 	{ { 0x62, 0x02, 0x14 }, 0xcf, 0xcf,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
 	{ { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS },	  /* Dell Vostro 1400 */
+	{ { 0x73, 0x02, 0x64 }, 0xf8, 0xf8, 0 },			  /* HP Pavilion dm3 */
 	{ { 0x52, 0x01, 0x14 }, 0xff, 0xff,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },	  /* Toshiba Tecra A11-11L */
 };

From 9d32c30542f9ecdb4b96a1a960924c9f403e3562 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Mon, 5 Apr 2010 22:29:09 -0700
Subject: [PATCH 048/464] Input: matrix_keypad - allow platform to disable key
 autorepeat

In an embedded system the matrix_keypad driver might be used to
interface with an external control panel and not an actual keyboard.
On the control panel some of the keys could be used to turn on/off
various functions.  If key autorepeat is enabled this causes the
function to quickly toggle between the on and off states and makes
operation difficult.

Add an option in the platform-specific data to disable the key
autorepeat.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/keyboard/matrix_keypad.c | 4 +++-
 include/linux/input/matrix_keypad.h    | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index d3c8b61a941d4..f9d86cfb0db07 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -373,7 +373,9 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev)
 	input_dev->name		= pdev->name;
 	input_dev->id.bustype	= BUS_HOST;
 	input_dev->dev.parent	= &pdev->dev;
-	input_dev->evbit[0]	= BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+	input_dev->evbit[0]	= BIT_MASK(EV_KEY);
+	if (!pdata->no_autorepeat)
+		input_dev->evbit[0] |= BIT_MASK(EV_REP);
 	input_dev->open		= matrix_keypad_start;
 	input_dev->close	= matrix_keypad_stop;
 
diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h
index 3bd018baae204..c964cd7f436a4 100644
--- a/include/linux/input/matrix_keypad.h
+++ b/include/linux/input/matrix_keypad.h
@@ -44,6 +44,7 @@ struct matrix_keymap_data {
  * @active_low: gpio polarity
  * @wakeup: controls whether the device should be set up as wakeup
  *	source
+ * @no_autorepeat: disable key autorepeat
  *
  * This structure represents platform-specific data that use used by
  * matrix_keypad driver to perform proper initialization.
@@ -64,6 +65,7 @@ struct matrix_keypad_platform_data {
 
 	bool		active_low;
 	bool		wakeup;
+	bool		no_autorepeat;
 };
 
 /**

From 1cb561f83793191cf86a2db3948d28f5f42df9ff Mon Sep 17 00:00:00 2001
From: Javier Cardona <javier@cozybit.com>
Date: Mon, 29 Mar 2010 11:00:20 -0700
Subject: [PATCH 049/464] mac80211: Handle mesh action frames in
 ieee80211_rx_h_action

This fixes the problem introduced in commit
8404080568613d93ad7cf0a16dfb68 which broke mesh peer link establishment.

changes:
v2 	Added missing break (Johannes)
v3 	Broke original patch into two (Johannes)

Signed-off-by: Javier Cardona <javier@cozybit.com>
Cc: stable@kernel.org
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/mesh.c | 3 ---
 net/mac80211/rx.c   | 5 +++++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 61080c5fad50f..7a6bebce7f2fa 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -749,9 +749,6 @@ ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 
 	switch (fc & IEEE80211_FCTL_STYPE) {
 	case IEEE80211_STYPE_ACTION:
-		if (skb->len < IEEE80211_MIN_ACTION_SIZE)
-			return RX_DROP_MONITOR;
-		/* fall through */
 	case IEEE80211_STYPE_PROBE_RESP:
 	case IEEE80211_STYPE_BEACON:
 		skb_queue_tail(&ifmsh->skb_queue, skb);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index b5c48de81d8b8..13fcd2d17c6b6 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1973,6 +1973,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 			goto handled;
 		}
 		break;
+	case MESH_PLINK_CATEGORY:
+	case MESH_PATH_SEL_CATEGORY:
+		if (ieee80211_vif_is_mesh(&sdata->vif))
+			return ieee80211_mesh_rx_mgmt(sdata, rx->skb);
+		break;
 	}
 
 	/*

From 0379185b6c0d1e8252023698cf1091da92a3dc03 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 6 Apr 2010 11:18:42 +0200
Subject: [PATCH 050/464] mac80211: annotate station rcu dereferences

The new RCU lockdep support warns about these
in some contexts -- make it aware of the locks
used to protect all this. Different locks are
used in different contexts which unfortunately
means we can't get perfect checking.

Also remove rcu_dereference() from two places
that don't actually dereference the pointers.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/main.c     |  4 ++--
 net/mac80211/sta_info.c | 20 ++++++++++++++++----
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 06c33b68d8e54..b887e484ae044 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -225,11 +225,11 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 			switch (sdata->vif.type) {
 			case NL80211_IFTYPE_AP:
 				sdata->vif.bss_conf.enable_beacon =
-					!!rcu_dereference(sdata->u.ap.beacon);
+					!!sdata->u.ap.beacon;
 				break;
 			case NL80211_IFTYPE_ADHOC:
 				sdata->vif.bss_conf.enable_beacon =
-					!!rcu_dereference(sdata->u.ibss.presp);
+					!!sdata->u.ibss.presp;
 				break;
 			case NL80211_IFTYPE_MESH_POINT:
 				sdata->vif.bss_conf.enable_beacon = true;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 56422d8943511..fb12cec4d333a 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -93,12 +93,18 @@ struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 
-	sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]);
+	sta = rcu_dereference_check(local->sta_hash[STA_HASH(addr)],
+				    rcu_read_lock_held() ||
+				    lockdep_is_held(&local->sta_lock) ||
+				    lockdep_is_held(&local->sta_mtx));
 	while (sta) {
 		if (sta->sdata == sdata &&
 		    memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
 			break;
-		sta = rcu_dereference(sta->hnext);
+		sta = rcu_dereference_check(sta->hnext,
+					    rcu_read_lock_held() ||
+					    lockdep_is_held(&local->sta_lock) ||
+					    lockdep_is_held(&local->sta_mtx));
 	}
 	return sta;
 }
@@ -113,13 +119,19 @@ struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 
-	sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]);
+	sta = rcu_dereference_check(local->sta_hash[STA_HASH(addr)],
+				    rcu_read_lock_held() ||
+				    lockdep_is_held(&local->sta_lock) ||
+				    lockdep_is_held(&local->sta_mtx));
 	while (sta) {
 		if ((sta->sdata == sdata ||
 		     sta->sdata->bss == sdata->bss) &&
 		    memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
 			break;
-		sta = rcu_dereference(sta->hnext);
+		sta = rcu_dereference_check(sta->hnext,
+					    rcu_read_lock_held() ||
+					    lockdep_is_held(&local->sta_lock) ||
+					    lockdep_is_held(&local->sta_mtx));
 	}
 	return sta;
 }

From 1144601118507f8b3b676a9a392584d216d3f2cc Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 6 Apr 2010 12:05:01 -0700
Subject: [PATCH 051/464] ath9k: fix double calls to ath_radio_enable

With the enable_radio being uninitialized, ath_radio_enable() might be
called twice, which can leave some hardware in an undefined state.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 67ca4e5a60177..115e1aeedb592 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1532,8 +1532,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 		all_wiphys_idle =  ath9k_all_wiphys_idle(sc);
 		ath9k_set_wiphy_idle(aphy, idle);
 
-		if (!idle && all_wiphys_idle)
-			enable_radio = true;
+		enable_radio = (!idle && all_wiphys_idle);
 
 		/*
 		 * After we unlock here its possible another wiphy

From 75f66533bc883f761a7adcab3281fe3323efbc90 Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@sous-sol.org>
Date: Fri, 2 Apr 2010 18:27:52 -0700
Subject: [PATCH 052/464] x86/amd-iommu: enable iommu before attaching devices

Hit another kdump problem as reported by Neil Horman.  When initializaing
the IOMMU, we attach devices to their domains before the IOMMU is
fully (re)initialized.  Attaching a device will issue some important
invalidations.  In the context of the newly kexec'd kdump kernel, the
IOMMU may have stale cached data from the original kernel.  Because we
do the attach too early, the invalidation commands are placed in the new
command buffer before the IOMMU is updated w/ that buffer.  This leaves
the stale entries in the kdump context and can renders device unusable.
Simply enable the IOMMU before we do the attach.

Cc: stable@kernel.org
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/amd_iommu_init.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index feaf47184900b..8975965f3e674 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -1304,6 +1304,8 @@ static int __init amd_iommu_init(void)
 	if (ret)
 		goto free;
 
+	enable_iommus();
+
 	if (iommu_pass_through)
 		ret = amd_iommu_init_passthrough();
 	else
@@ -1316,8 +1318,6 @@ static int __init amd_iommu_init(void)
 
 	amd_iommu_init_notifier();
 
-	enable_iommus();
-
 	if (iommu_pass_through)
 		goto out;
 
@@ -1331,6 +1331,7 @@ static int __init amd_iommu_init(void)
 	return ret;
 
 free:
+	disable_iommus();
 
 	amd_iommu_uninit_devices();
 

From 549c90dc9a6d659e792b2a42a0930c7da015ea4a Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@sous-sol.org>
Date: Fri, 2 Apr 2010 18:27:53 -0700
Subject: [PATCH 053/464] x86/amd-iommu: warn when issuing command to
 uninitialized cmd buffer

To catch future potential issues we can add a warning whenever we issue
a command before the command buffer is fully initialized.

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/include/asm/amd_iommu_types.h | 1 +
 arch/x86/kernel/amd_iommu.c            | 1 +
 arch/x86/kernel/amd_iommu_init.c       | 5 +++--
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index 5e46e78f3b1b3..86a0ff0aeac7e 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -141,6 +141,7 @@
 
 /* constants to configure the command buffer */
 #define CMD_BUFFER_SIZE    8192
+#define CMD_BUFFER_UNINITIALIZED 1
 #define CMD_BUFFER_ENTRIES 512
 #define MMIO_CMD_SIZE_SHIFT 56
 #define MMIO_CMD_SIZE_512 (0x9ULL << MMIO_CMD_SIZE_SHIFT)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index b06f29e275e91..71dfc0af8e50d 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -392,6 +392,7 @@ static int __iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd)
 	u32 tail, head;
 	u8 *target;
 
+	WARN_ON(iommu->cmd_buf_size & CMD_BUFFER_UNINITIALIZED);
 	tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
 	target = iommu->cmd_buf + tail;
 	memcpy_toio(target, cmd, sizeof(*cmd));
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 8975965f3e674..5edf41c7127c3 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -438,7 +438,7 @@ static u8 * __init alloc_command_buffer(struct amd_iommu *iommu)
 	if (cmd_buf == NULL)
 		return NULL;
 
-	iommu->cmd_buf_size = CMD_BUFFER_SIZE;
+	iommu->cmd_buf_size = CMD_BUFFER_SIZE | CMD_BUFFER_UNINITIALIZED;
 
 	return cmd_buf;
 }
@@ -474,12 +474,13 @@ static void iommu_enable_command_buffer(struct amd_iommu *iommu)
 		    &entry, sizeof(entry));
 
 	amd_iommu_reset_cmd_buffer(iommu);
+	iommu->cmd_buf_size &= ~(CMD_BUFFER_UNINITIALIZED);
 }
 
 static void __init free_command_buffer(struct amd_iommu *iommu)
 {
 	free_pages((unsigned long)iommu->cmd_buf,
-		   get_order(iommu->cmd_buf_size));
+		   get_order(iommu->cmd_buf_size & ~(CMD_BUFFER_UNINITIALIZED)));
 }
 
 /* allocates the memory where the IOMMU will log its events to */

From 8f9f55e83e939724490d7cde3833c4883c6d1310 Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@sous-sol.org>
Date: Fri, 2 Apr 2010 18:27:54 -0700
Subject: [PATCH 054/464] Revert "x86: disable IOMMUs on kernel crash"

This effectively reverts commit 61d047be99757fd9b0af900d7abce9a13a337488.

Disabling the IOMMU can potetially allow DMA transactions to
complete without being translated.  Leave it enabled, and allow
crash kernel to do the IOMMU reinitialization properly.

Cc: stable@kernel.org
Cc: Joerg Roedel <joerg.roedel@amd.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/crash.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index a4849c10a77e0..ebd4c51d096a5 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -27,7 +27,6 @@
 #include <asm/cpu.h>
 #include <asm/reboot.h>
 #include <asm/virtext.h>
-#include <asm/x86_init.h>
 
 #if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
 
@@ -103,10 +102,5 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
 #ifdef CONFIG_HPET_TIMER
 	hpet_disable();
 #endif
-
-#ifdef CONFIG_X86_64
-	x86_platform.iommu_shutdown();
-#endif
-
 	crash_save_cpu(regs, safe_smp_processor_id());
 }

From d18c69d3898985c66cd6e878b8f576fd9a21ab39 Mon Sep 17 00:00:00 2001
From: Chris Wright <chrisw@sous-sol.org>
Date: Fri, 2 Apr 2010 18:27:55 -0700
Subject: [PATCH 055/464] x86/amd-iommu: use for_each_pci_dev

Replace open coded version with for_each_pci_dev

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/amd_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 71dfc0af8e50d..494956813951c 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2187,7 +2187,7 @@ static void prealloc_protection_domains(void)
 	struct dma_ops_domain *dma_dom;
 	u16 devid;
 
-	while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+	for_each_pci_dev(dev) {
 
 		/* Do we handle this device? */
 		if (!check_device(&dev->dev))

From 20a1cfba340f23a7ca62391e199c40c86b762ea3 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 7 Apr 2010 14:28:26 +0200
Subject: [PATCH 056/464] x86/amd-iommu: Remove obsolete parameter
 documentation

Support for the share and fullflush parameters was removed.
Remove the documentation about them too.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 Documentation/kernel-parameters.txt | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e7848a0d99ebc..ccea846164f01 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -323,11 +323,6 @@ and is between 256 and 4096 characters. It is defined in the file
 	amd_iommu=	[HW,X86-84]
 			Pass parameters to the AMD IOMMU driver in the system.
 			Possible values are:
-			isolate - enable device isolation (each device, as far
-			          as possible, will get its own protection
-			          domain) [default]
-			share - put every device behind one IOMMU into the
-				same protection domain
 			fullflush - enable flushing of IO/TLB entries when
 				    they are unmapped. Otherwise they are
 				    flushed before they will be reused, which

From 39a37ce1cc5eef420604fa68b776ff5dab400340 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Tue, 6 Apr 2010 19:45:12 +0300
Subject: [PATCH 057/464] dma-debug: Cleanup for copy-loop in filter_write()

Earlier in this function we set the last byte of "buf" to NULL so we
always hit the break statement and "i" is never equal to NAME_MAX_LEN.
This patch doesn't change how the driver works but it silences a Smatch
warning and it makes it clearer that we don't write past the end of the
array.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 lib/dma-debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index ba8b67039d13e..01e64270e246b 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -570,7 +570,7 @@ static ssize_t filter_write(struct file *file, const char __user *userbuf,
 	 * Now parse out the first token and use it as the name for the
 	 * driver to filter for.
 	 */
-	for (i = 0; i < NAME_MAX_LEN; ++i) {
+	for (i = 0; i < NAME_MAX_LEN - 1; ++i) {
 		current_driver_name[i] = buf[i];
 		if (isspace(buf[i]) || buf[i] == ' ' || buf[i] == 0)
 			break;

From 4b83873d3da0704987cb116833818ed96214ee29 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 7 Apr 2010 12:57:35 +0200
Subject: [PATCH 058/464] x86/gart: Disable GART explicitly before
 initialization

If we boot into a crash-kernel the gart might still be
enabled and its caches might be dirty. This can result in
undefined behavior later. Fix it by explicitly disabling the
gart hardware before initialization and flushing the caches
after enablement.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kernel/aperture_64.c | 15 ++++++++++++++-
 arch/x86/kernel/pci-gart_64.c |  3 +++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 3704997e8b257..b5d8b0bcf2358 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -393,6 +393,7 @@ void __init gart_iommu_hole_init(void)
 	for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
 		int bus;
 		int dev_base, dev_limit;
+		u32 ctl;
 
 		bus = bus_dev_ranges[i].bus;
 		dev_base = bus_dev_ranges[i].dev_base;
@@ -406,7 +407,19 @@ void __init gart_iommu_hole_init(void)
 			gart_iommu_aperture = 1;
 			x86_init.iommu.iommu_init = gart_iommu_init;
 
-			aper_order = (read_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL) >> 1) & 7;
+			ctl = read_pci_config(bus, slot, 3,
+					      AMD64_GARTAPERTURECTL);
+
+			/*
+			 * Before we do anything else disable the GART. It may
+			 * still be enabled if we boot into a crash-kernel here.
+			 * Reconfiguring the GART while it is enabled could have
+			 * unknown side-effects.
+			 */
+			ctl &= ~GARTEN;
+			write_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL, ctl);
+
+			aper_order = (ctl >> 1) & 7;
 			aper_size = (32 * 1024 * 1024) << aper_order;
 			aper_base = read_pci_config(bus, slot, 3, AMD64_GARTAPERTUREBASE) & 0x7fff;
 			aper_base <<= 25;
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index f3af115a573a5..0ae24d9b44b34 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -564,6 +564,9 @@ static void enable_gart_translations(void)
 
 		enable_gart_translation(dev, __pa(agp_gatt_table));
 	}
+
+	/* Flush the GART-TLB to remove stale entries */
+	k8_flush_garts();
 }
 
 /*

From 7ad7b218f4aae4f395b3b4cef261572556bbd20a Mon Sep 17 00:00:00 2001
From: Maurus Cuelenaere <mcuelenaere@gmail.com>
Date: Tue, 6 Apr 2010 18:12:52 +0200
Subject: [PATCH 059/464] ALSA: hda: Add support for Medion WIM2160

This adds support for the Medion WIM2160 soundcard.
There's no PCI quirk added because it has the same PCI id as the
Medion MD2.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 53 +++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c7730dbb9ddbe..2971e48e50ade 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -230,6 +230,7 @@ enum {
 	ALC888_ACER_ASPIRE_7730G,
 	ALC883_MEDION,
 	ALC883_MEDION_MD2,
+	ALC883_MEDION_WIM2160,
 	ALC883_LAPTOP_EAPD,
 	ALC883_LENOVO_101E_2ch,
 	ALC883_LENOVO_NB0763,
@@ -8455,6 +8456,42 @@ static struct snd_kcontrol_new alc883_medion_md2_mixer[] = {
 	{ } /* end */
 };
 
+static struct snd_kcontrol_new alc883_medion_wim2160_mixer[] = {
+	HDA_CODEC_VOLUME("Front Playback Volume", 0x0c, 0x0, HDA_OUTPUT),
+	HDA_BIND_MUTE("Front Playback Switch", 0x0c, 2, HDA_INPUT),
+	HDA_CODEC_MUTE("Speaker Playback Switch", 0x15, 0x0, HDA_OUTPUT),
+	HDA_CODEC_MUTE("Headphone Playback Switch", 0x1a, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME("Line Playback Volume", 0x08, 0x0, HDA_INPUT),
+	HDA_CODEC_MUTE("Line Playback Switch", 0x08, 0x0, HDA_INPUT),
+	{ } /* end */
+};
+
+static struct hda_verb alc883_medion_wim2160_verbs[] = {
+	/* Unmute front mixer */
+	{0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+	{0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+
+	/* Set speaker pin to front mixer */
+	{0x15, AC_VERB_SET_CONNECT_SEL, 0x00},
+
+	/* Init headphone pin */
+	{0x1a, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP},
+	{0x1a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+	{0x1a, AC_VERB_SET_CONNECT_SEL, 0x00},
+	{0x1a, AC_VERB_SET_UNSOLICITED_ENABLE, ALC880_HP_EVENT | AC_USRSP_EN},
+
+	{ } /* end */
+};
+
+/* toggle speaker-output according to the hp-jack state */
+static void alc883_medion_wim2160_setup(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+
+	spec->autocfg.hp_pins[0] = 0x1a;
+	spec->autocfg.speaker_pins[0] = 0x15;
+}
+
 static struct snd_kcontrol_new alc883_acer_aspire_mixer[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x0c, 0x0, HDA_OUTPUT),
 	HDA_BIND_MUTE("Front Playback Switch", 0x0c, 2, HDA_INPUT),
@@ -9164,6 +9201,7 @@ static const char *alc882_models[ALC882_MODEL_LAST] = {
 	[ALC888_ACER_ASPIRE_7730G]	= "acer-aspire-7730g",
 	[ALC883_MEDION]		= "medion",
 	[ALC883_MEDION_MD2]	= "medion-md2",
+	[ALC883_MEDION_WIM2160]	= "medion-wim2160",
 	[ALC883_LAPTOP_EAPD]	= "laptop-eapd",
 	[ALC883_LENOVO_101E_2ch] = "lenovo-101e",
 	[ALC883_LENOVO_NB0763]	= "lenovo-nb0763",
@@ -9818,6 +9856,21 @@ static struct alc_config_preset alc882_presets[] = {
 		.setup = alc883_medion_md2_setup,
 		.init_hook = alc_automute_amp,
 	},
+	[ALC883_MEDION_WIM2160] = {
+		.mixers = { alc883_medion_wim2160_mixer },
+		.init_verbs = { alc883_init_verbs, alc883_medion_wim2160_verbs },
+		.num_dacs = ARRAY_SIZE(alc883_dac_nids),
+		.dac_nids = alc883_dac_nids,
+		.dig_out_nid = ALC883_DIGOUT_NID,
+		.num_adc_nids = ARRAY_SIZE(alc883_adc_nids),
+		.adc_nids = alc883_adc_nids,
+		.num_channel_mode = ARRAY_SIZE(alc883_3ST_2ch_modes),
+		.channel_mode = alc883_3ST_2ch_modes,
+		.input_mux = &alc883_capture_source,
+		.unsol_event = alc_automute_amp_unsol_event,
+		.setup = alc883_medion_wim2160_setup,
+		.init_hook = alc_automute_amp,
+	},
 	[ALC883_LAPTOP_EAPD] = {
 		.mixers = { alc883_base_mixer },
 		.init_verbs = { alc883_init_verbs, alc882_eapd_verbs },

From 179b284e2fc0c638035843968f7d7ab8ab701525 Mon Sep 17 00:00:00 2001
From: Jeff Dike <jdike@addtoit.com>
Date: Wed, 7 Apr 2010 09:59:10 -0400
Subject: [PATCH 060/464] vhost-net: fix vq_memory_access_ok error checking

vq_memory_access_ok needs to check whether mem == NULL

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/vhost/vhost.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 7bd7a1e4409d4..b8e1127208128 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -235,6 +235,10 @@ static int vq_memory_access_ok(void __user *log_base, struct vhost_memory *mem,
 			       int log_all)
 {
 	int i;
+
+        if (!mem)
+                return 0;
+
 	for (i = 0; i < mem->nregions; ++i) {
 		struct vhost_memory_region *m = mem->regions + i;
 		unsigned long a = m->userspace_addr;

From 3bcf8229a8c49769e48d3e0bd1e20d8e003f8106 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Wed, 7 Apr 2010 16:50:58 -0700
Subject: [PATCH 061/464] r6040: fix r6040_multicast_list

As reported in <https://bugzilla.kernel.org/show_bug.cgi?id=15355>, r6040_
multicast_list currently crashes. This is due a wrong maximum of multicast
entries. This patch fixes the following issues with multicast:

- number of maximum entries if off-by-one (4 instead of 3)

- the writing of the hash table index is not necessary and leads to invalid
values being written into the MCR1 register, so the MAC is simply put in a non
coherent state

- when we exceed the maximum number of mutlticast address, writing the
broadcast address should be done in registers MID_1{L,M,H} instead of
MID_O{L,M,H}, otherwise we would loose the adapter's MAC address

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/r6040.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index 15d5373dc8f30..1247bc6b19d46 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -135,7 +135,7 @@
 #define RX_DESC_SIZE	(RX_DCNT * sizeof(struct r6040_descriptor))
 #define TX_DESC_SIZE	(TX_DCNT * sizeof(struct r6040_descriptor))
 #define MBCR_DEFAULT	0x012A	/* MAC Bus Control Register */
-#define MCAST_MAX	4	/* Max number multicast addresses to filter */
+#define MCAST_MAX	3	/* Max number multicast addresses to filter */
 
 /* Descriptor status */
 #define DSC_OWNER_MAC	0x8000	/* MAC is the owner of this descriptor */
@@ -983,9 +983,6 @@ static void r6040_multicast_list(struct net_device *dev)
 			crc >>= 26;
 			hash_table[crc >> 4] |= 1 << (15 - (crc & 0xf));
 		}
-		/* Write the index of the hash table */
-		for (i = 0; i < 4; i++)
-			iowrite16(hash_table[i] << 14, ioaddr + MCR1);
 		/* Fill the MAC hash tables with their values */
 		iowrite16(hash_table[0], ioaddr + MAR0);
 		iowrite16(hash_table[1], ioaddr + MAR1);
@@ -1001,9 +998,9 @@ static void r6040_multicast_list(struct net_device *dev)
 			iowrite16(adrp[1], ioaddr + MID_1M + 8 * i);
 			iowrite16(adrp[2], ioaddr + MID_1H + 8 * i);
 		} else {
-			iowrite16(0xffff, ioaddr + MID_0L + 8 * i);
-			iowrite16(0xffff, ioaddr + MID_0M + 8 * i);
-			iowrite16(0xffff, ioaddr + MID_0H + 8 * i);
+			iowrite16(0xffff, ioaddr + MID_1L + 8 * i);
+			iowrite16(0xffff, ioaddr + MID_1M + 8 * i);
+			iowrite16(0xffff, ioaddr + MID_1H + 8 * i);
 		}
 		i++;
 	}

From a55cb185b4a8f84cd05b66bb00b267ea455ecdc8 Mon Sep 17 00:00:00 2001
From: Amit Kumar Salecha <amit.salecha@qlogic.com>
Date: Wed, 7 Apr 2010 16:51:49 -0700
Subject: [PATCH 062/464] qlcnic: fix set mac addr

If interface is down, mac address request are not sent to fw
but it is getting add in driver mac list.
Driver mac list should be in sync with fw i.e addresses communicated
to fw.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/qlcnic/qlcnic_hw.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c
index da00e162b6d34..b1753138ac987 100644
--- a/drivers/net/qlcnic/qlcnic_hw.c
+++ b/drivers/net/qlcnic/qlcnic_hw.c
@@ -430,6 +430,9 @@ void qlcnic_set_multi(struct net_device *netdev)
 	u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 	u32 mode = VPORT_MISS_MODE_DROP;
 
+	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+		return;
+
 	qlcnic_nic_add_mac(adapter, adapter->mac_addr);
 	qlcnic_nic_add_mac(adapter, bcast_addr);
 

From 94824f3dbe0d3f62470603bbb18efb5510aaf07c Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Wed, 7 Apr 2010 20:53:54 -0700
Subject: [PATCH 063/464] cnic: Fix crash during bnx2x MTU change.

cnic_service_bnx2x() irq handler can be called during chip reset from
MTU change.  Need to check that the cnic's device state is up before
handling the irq.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/cnic.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index 9781942992e9a..4b451a7c03e91 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -2334,13 +2334,13 @@ static int cnic_service_bnx2x(void *data, void *status_blk)
 	struct cnic_local *cp = dev->cnic_priv;
 	u16 prod = cp->kcq_prod_idx & MAX_KCQ_IDX;
 
-	prefetch(cp->status_blk.bnx2x);
-	prefetch(&cp->kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
+	if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
+		prefetch(cp->status_blk.bnx2x);
+		prefetch(&cp->kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
 
-	if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags)))
 		tasklet_schedule(&cp->cnic_irq_task);
-
-	cnic_chk_pkt_rings(cp);
+		cnic_chk_pkt_rings(cp);
+	}
 
 	return 0;
 }

From fd218cf9557b9bf7061365a8fe7020a56d3f767c Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 7 Apr 2010 21:20:47 -0700
Subject: [PATCH 064/464] bridge: Fix IGMP3 report parsing

The IGMP3 report parsing is looking at the wrong address for
group records.  This patch fixes it.

Reported-by: Banyeer <banyeer@yahoo.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_multicast.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 6980625537caa..f29ada827a6ac 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -723,7 +723,7 @@ static int br_multicast_igmp3_report(struct net_bridge *br,
 		if (!pskb_may_pull(skb, len))
 			return -EINVAL;
 
-		grec = (void *)(skb->data + len);
+		grec = (void *)(skb->data + len - sizeof(*grec));
 		group = grec->grec_mca;
 		type = grec->grec_type;
 

From f5eb917b861828da18dc28854308068c66d1449a Mon Sep 17 00:00:00 2001
From: John Hughes <john@calva.com>
Date: Wed, 7 Apr 2010 21:29:25 -0700
Subject: [PATCH 065/464] x25: Patch to fix bug 15678 - x25 accesses fields
 beyond end of packet.

Here is a patch to stop X.25 examining fields beyond the end of the packet.

For example, when a simple CALL ACCEPTED was received:

	10 10 0f

x25_parse_facilities was attempting to decode the FACILITIES field, but this
packet contains no facilities field.

Signed-off-by: John Hughes <john@calva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/x25.h        |  4 ++++
 net/x25/af_x25.c         | 47 +++++++++++++++++++++++++++++++++++++++-
 net/x25/x25_facilities.c | 12 +++++++++-
 net/x25/x25_in.c         | 15 +++++++++----
 4 files changed, 72 insertions(+), 6 deletions(-)

diff --git a/include/net/x25.h b/include/net/x25.h
index 9baa07dc7d17e..33f67fb785867 100644
--- a/include/net/x25.h
+++ b/include/net/x25.h
@@ -182,6 +182,10 @@ extern int  sysctl_x25_clear_request_timeout;
 extern int  sysctl_x25_ack_holdback_timeout;
 extern int  sysctl_x25_forward;
 
+extern int x25_parse_address_block(struct sk_buff *skb,
+		struct x25_address *called_addr,
+		struct x25_address *calling_addr);
+
 extern int  x25_addr_ntoa(unsigned char *, struct x25_address *,
 			  struct x25_address *);
 extern int  x25_addr_aton(unsigned char *, struct x25_address *,
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 9796f3ed1edbc..fe26c01ef3e60 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -82,6 +82,41 @@ struct compat_x25_subscrip_struct {
 };
 #endif
 
+
+int x25_parse_address_block(struct sk_buff *skb,
+		struct x25_address *called_addr,
+		struct x25_address *calling_addr)
+{
+	unsigned char len;
+	int needed;
+	int rc;
+
+	if (skb->len < 1) {
+		/* packet has no address block */
+		rc = 0;
+		goto empty;
+	}
+
+	len = *skb->data;
+	needed = 1 + (len >> 4) + (len & 0x0f);
+
+	if (skb->len < needed) {
+		/* packet is too short to hold the addresses it claims
+		   to hold */
+		rc = -1;
+		goto empty;
+	}
+
+	return x25_addr_ntoa(skb->data, called_addr, calling_addr);
+
+empty:
+	*called_addr->x25_addr = 0;
+	*calling_addr->x25_addr = 0;
+
+	return rc;
+}
+
+
 int x25_addr_ntoa(unsigned char *p, struct x25_address *called_addr,
 		  struct x25_address *calling_addr)
 {
@@ -921,16 +956,26 @@ int x25_rx_call_request(struct sk_buff *skb, struct x25_neigh *nb,
 	/*
 	 *	Extract the X.25 addresses and convert them to ASCII strings,
 	 *	and remove them.
+	 *
+	 *	Address block is mandatory in call request packets
 	 */
-	addr_len = x25_addr_ntoa(skb->data, &source_addr, &dest_addr);
+	addr_len = x25_parse_address_block(skb, &source_addr, &dest_addr);
+	if (addr_len <= 0)
+		goto out_clear_request;
 	skb_pull(skb, addr_len);
 
 	/*
 	 *	Get the length of the facilities, skip past them for the moment
 	 *	get the call user data because this is needed to determine
 	 *	the correct listener
+	 *
+	 *	Facilities length is mandatory in call request packets
 	 */
+	if (skb->len < 1)
+		goto out_clear_request;
 	len = skb->data[0] + 1;
+	if (skb->len < len)
+		goto out_clear_request;
 	skb_pull(skb,len);
 
 	/*
diff --git a/net/x25/x25_facilities.c b/net/x25/x25_facilities.c
index a21f6646eb3a8..a2765c6b1f1ac 100644
--- a/net/x25/x25_facilities.c
+++ b/net/x25/x25_facilities.c
@@ -35,7 +35,7 @@ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities,
 		struct x25_dte_facilities *dte_facs, unsigned long *vc_fac_mask)
 {
 	unsigned char *p = skb->data;
-	unsigned int len = *p++;
+	unsigned int len;
 
 	*vc_fac_mask = 0;
 
@@ -50,6 +50,14 @@ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities,
 	memset(dte_facs->called_ae, '\0', sizeof(dte_facs->called_ae));
 	memset(dte_facs->calling_ae, '\0', sizeof(dte_facs->calling_ae));
 
+	if (skb->len < 1)
+		return 0;
+
+	len = *p++;
+
+	if (len >= skb->len)
+		return -1;
+
 	while (len > 0) {
 		switch (*p & X25_FAC_CLASS_MASK) {
 		case X25_FAC_CLASS_A:
@@ -247,6 +255,8 @@ int x25_negotiate_facilities(struct sk_buff *skb, struct sock *sk,
 	memcpy(new, ours, sizeof(*new));
 
 	len = x25_parse_facilities(skb, &theirs, dte, &x25->vc_facil_mask);
+	if (len < 0)
+		return len;
 
 	/*
 	 *	They want reverse charging, we won't accept it.
diff --git a/net/x25/x25_in.c b/net/x25/x25_in.c
index 96d9227835479..b39072f3a297f 100644
--- a/net/x25/x25_in.c
+++ b/net/x25/x25_in.c
@@ -89,6 +89,7 @@ static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)
 static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametype)
 {
 	struct x25_address source_addr, dest_addr;
+	int len;
 
 	switch (frametype) {
 		case X25_CALL_ACCEPTED: {
@@ -106,11 +107,17 @@ static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametyp
 			 *	Parse the data in the frame.
 			 */
 			skb_pull(skb, X25_STD_MIN_LEN);
-			skb_pull(skb, x25_addr_ntoa(skb->data, &source_addr, &dest_addr));
-			skb_pull(skb,
-				 x25_parse_facilities(skb, &x25->facilities,
+
+			len = x25_parse_address_block(skb, &source_addr,
+						&dest_addr);
+			if (len > 0)
+				skb_pull(skb, len);
+
+			len = x25_parse_facilities(skb, &x25->facilities,
 						&x25->dte_facilities,
-						&x25->vc_facil_mask));
+						&x25->vc_facil_mask);
+			if (len > 0)
+				skb_pull(skb, len);
 			/*
 			 *	Copy any Call User Data.
 			 */

From ddd0451fc8dbf94446c81500ff0dcee06c4057cb Mon Sep 17 00:00:00 2001
From: John Hughes <john@Calva.COM>
Date: Sun, 4 Apr 2010 06:48:10 +0000
Subject: [PATCH 066/464] x.25 attempts to negotiate invalid throughput

The current X.25 code has some bugs in throughput negotiation:

   1. It does negotiation in all cases, usually there is no need
   2. It incorrectly attempts to negotiate the throughput class in one
      direction only.  There are separate throughput classes for input
      and output and if either is negotiated both mist be negotiates.

This is bug https://bugzilla.kernel.org/show_bug.cgi?id=15681

This bug was first reported by Daniel Ferenci to the linux-x25 mailing
list on 6/8/2004, but is still present.

The current (2.6.34) x.25 code doesn't seem to know that the X.25
throughput facility includes two values, one for the required
throughput outbound, one for inbound.

This causes it to attempt to negotiate throughput 0x0A, which is
throughput 9600 inbound and the illegal value "0" for inbound
throughput.

Because of this some X.25 devices (e.g. Cisco 1600) refuse to connect
to Linux X.25.

The following patch fixes this behaviour.  Unless the user specifies a
required throughput it does not attempt to negotiate.  If the user
does not specify a throughput it accepts the suggestion of the remote
X.25 system.  If the user requests a throughput then it validates both
the input and output throughputs and correctly negotiates them with
the remote end.

Signed-off-by: John Hughes <john@calva.com>
Tested-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/x25/af_x25.c         | 20 ++++++++++++++++----
 net/x25/x25_facilities.c | 15 ++++++++++++---
 2 files changed, 28 insertions(+), 7 deletions(-)

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index fe26c01ef3e60..8ed51c926c503 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -588,7 +588,8 @@ static int x25_create(struct net *net, struct socket *sock, int protocol,
 	x25->facilities.winsize_out = X25_DEFAULT_WINDOW_SIZE;
 	x25->facilities.pacsize_in  = X25_DEFAULT_PACKET_SIZE;
 	x25->facilities.pacsize_out = X25_DEFAULT_PACKET_SIZE;
-	x25->facilities.throughput  = X25_DEFAULT_THROUGHPUT;
+	x25->facilities.throughput  = 0;	/* by default don't negotiate
+						   throughput */
 	x25->facilities.reverse     = X25_DEFAULT_REVERSE;
 	x25->dte_facilities.calling_len = 0;
 	x25->dte_facilities.called_len = 0;
@@ -1459,9 +1460,20 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 			if (facilities.winsize_in < 1 ||
 			    facilities.winsize_in > 127)
 				break;
-			if (facilities.throughput < 0x03 ||
-			    facilities.throughput > 0xDD)
-				break;
+			if (facilities.throughput) {
+				int out = facilities.throughput & 0xf0;
+				int in  = facilities.throughput & 0x0f;
+				if (!out)
+					facilities.throughput |=
+						X25_DEFAULT_THROUGHPUT << 4;
+				else if (out < 0x30 || out > 0xD0)
+					break;
+				if (!in)
+					facilities.throughput |=
+						X25_DEFAULT_THROUGHPUT;
+				else if (in < 0x03 || in > 0x0D)
+					break;
+			}
 			if (facilities.reverse &&
 				(facilities.reverse & 0x81) != 0x81)
 				break;
diff --git a/net/x25/x25_facilities.c b/net/x25/x25_facilities.c
index a2765c6b1f1ac..771bab00754b0 100644
--- a/net/x25/x25_facilities.c
+++ b/net/x25/x25_facilities.c
@@ -269,9 +269,18 @@ int x25_negotiate_facilities(struct sk_buff *skb, struct sock *sk,
 	new->reverse = theirs.reverse;
 
 	if (theirs.throughput) {
-		if (theirs.throughput < ours->throughput) {
-			SOCK_DEBUG(sk, "X.25: throughput negotiated down\n");
-			new->throughput = theirs.throughput;
+		int theirs_in =  theirs.throughput & 0x0f;
+		int theirs_out = theirs.throughput & 0xf0;
+		int ours_in  = ours->throughput & 0x0f;
+		int ours_out = ours->throughput & 0xf0;
+		if (!ours_in || theirs_in < ours_in) {
+			SOCK_DEBUG(sk, "X.25: inbound throughput negotiated\n");
+			new->throughput = (new->throughput & 0xf0) | theirs_in;
+		}
+		if (!ours_out || theirs_out < ours_out) {
+			SOCK_DEBUG(sk,
+				"X.25: outbound throughput negotiated\n");
+			new->throughput = (new->throughput & 0x0f) | theirs_out;
 		}
 	}
 

From b62226826b4ea1926b644b5a337ffa6b637d4870 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Wed, 7 Apr 2010 21:50:08 -0700
Subject: [PATCH 067/464] stmmac: use resource_size()

Resource size should be calculated as end - start + 1 because we start
counting at zero.  I changed the code to resource_size() to do the
calculation.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/stmmac/stmmac_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index a6733612d64a6..55317adec33de 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -1685,7 +1685,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 	}
 	pr_info("done!\n");
 
-	if (!request_mem_region(res->start, (res->end - res->start),
+	if (!request_mem_region(res->start, resource_size(res),
 				pdev->name)) {
 		pr_err("%s: ERROR: memory allocation failed"
 		       "cannot get the I/O addr 0x%x\n",
@@ -1694,9 +1694,9 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	addr = ioremap(res->start, (res->end - res->start));
+	addr = ioremap(res->start, resource_size(res));
 	if (!addr) {
-		pr_err("%s: ERROR: memory mapping failed \n", __func__);
+		pr_err("%s: ERROR: memory mapping failed\n", __func__);
 		ret = -ENOMEM;
 		goto out;
 	}
@@ -1774,7 +1774,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 out:
 	if (ret < 0) {
 		platform_set_drvdata(pdev, NULL);
-		release_mem_region(res->start, (res->end - res->start));
+		release_mem_region(res->start, resource_size(res));
 		if (addr != NULL)
 			iounmap(addr);
 	}
@@ -1812,7 +1812,7 @@ static int stmmac_dvr_remove(struct platform_device *pdev)
 
 	iounmap((void *)ndev->base_addr);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(res->start, (res->end - res->start));
+	release_mem_region(res->start, resource_size(res));
 
 	free_netdev(ndev);
 

From 69298698c2453c2f8cd1d7d2a4cae39eeec3b66e Mon Sep 17 00:00:00 2001
From: Patrick Loschmidt <Patrick.Loschmidt@oeaw.ac.at>
Date: Wed, 7 Apr 2010 21:52:07 -0700
Subject: [PATCH 068/464] net: corrected documentation for hardware time
 stamping

The current documentation for hardware time stamping does not
correctly specify the available kernel functions since the
implementation was changed later on.

Signed-off-by: Patrick Loschmidt <Patrick.Loschmidt@oeaw.ac.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/timestamping.txt | 76 ++++++++++++++---------
 1 file changed, 46 insertions(+), 30 deletions(-)

diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt
index 0e58b4539176a..e8c8f4f06c67f 100644
--- a/Documentation/networking/timestamping.txt
+++ b/Documentation/networking/timestamping.txt
@@ -41,11 +41,12 @@ SOF_TIMESTAMPING_SOFTWARE:     return system time stamp generated in
 SOF_TIMESTAMPING_TX/RX determine how time stamps are generated.
 SOF_TIMESTAMPING_RAW/SYS determine how they are reported in the
 following control message:
-    struct scm_timestamping {
-           struct timespec systime;
-           struct timespec hwtimetrans;
-           struct timespec hwtimeraw;
-    };
+
+struct scm_timestamping {
+	struct timespec systime;
+	struct timespec hwtimetrans;
+	struct timespec hwtimeraw;
+};
 
 recvmsg() can be used to get this control message for regular incoming
 packets. For send time stamps the outgoing packet is looped back to
@@ -87,12 +88,13 @@ by the network device and will be empty without that support.
 SIOCSHWTSTAMP:
 
 Hardware time stamping must also be initialized for each device driver
-that is expected to do hardware time stamping. The parameter is:
+that is expected to do hardware time stamping. The parameter is defined in
+/include/linux/net_tstamp.h as:
 
 struct hwtstamp_config {
-    int flags;           /* no flags defined right now, must be zero */
-    int tx_type;         /* HWTSTAMP_TX_* */
-    int rx_filter;       /* HWTSTAMP_FILTER_* */
+	int flags;	/* no flags defined right now, must be zero */
+	int tx_type;	/* HWTSTAMP_TX_* */
+	int rx_filter;	/* HWTSTAMP_FILTER_* */
 };
 
 Desired behavior is passed into the kernel and to a specific device by
@@ -139,42 +141,56 @@ enum {
 	/* time stamp any incoming packet */
 	HWTSTAMP_FILTER_ALL,
 
-        /* return value: time stamp all packets requested plus some others */
-        HWTSTAMP_FILTER_SOME,
+	/* return value: time stamp all packets requested plus some others */
+	HWTSTAMP_FILTER_SOME,
 
 	/* PTP v1, UDP, any kind of event packet */
 	HWTSTAMP_FILTER_PTP_V1_L4_EVENT,
 
-        ...
+	/* for the complete list of values, please check
+	 * the include file /include/linux/net_tstamp.h
+	 */
 };
 
 
 DEVICE IMPLEMENTATION
 
 A driver which supports hardware time stamping must support the
-SIOCSHWTSTAMP ioctl. Time stamps for received packets must be stored
-in the skb with skb_hwtstamp_set().
+SIOCSHWTSTAMP ioctl and update the supplied struct hwtstamp_config with
+the actual values as described in the section on SIOCSHWTSTAMP.
+
+Time stamps for received packets must be stored in the skb. To get a pointer
+to the shared time stamp structure of the skb call skb_hwtstamps(). Then
+set the time stamps in the structure:
+
+struct skb_shared_hwtstamps {
+	/* hardware time stamp transformed into duration
+	 * since arbitrary point in time
+	 */
+	ktime_t	hwtstamp;
+	ktime_t	syststamp; /* hwtstamp transformed to system time base */
+};
 
 Time stamps for outgoing packets are to be generated as follows:
-- In hard_start_xmit(), check if skb_hwtstamp_check_tx_hardware()
-  returns non-zero. If yes, then the driver is expected
-  to do hardware time stamping.
+- In hard_start_xmit(), check if skb_tx(skb)->hardware is set no-zero.
+  If yes, then the driver is expected to do hardware time stamping.
 - If this is possible for the skb and requested, then declare
-  that the driver is doing the time stamping by calling
-  skb_hwtstamp_tx_in_progress(). A driver not supporting
-  hardware time stamping doesn't do that. A driver must never
-  touch sk_buff::tstamp! It is used to store how time stamping
-  for an outgoing packets is to be done.
+  that the driver is doing the time stamping by setting the field
+  skb_tx(skb)->in_progress non-zero. You might want to keep a pointer
+  to the associated skb for the next step and not free the skb. A driver
+  not supporting hardware time stamping doesn't do that. A driver must
+  never touch sk_buff::tstamp! It is used to store software generated
+  time stamps by the network subsystem.
 - As soon as the driver has sent the packet and/or obtained a
   hardware time stamp for it, it passes the time stamp back by
   calling skb_hwtstamp_tx() with the original skb, the raw
-  hardware time stamp and a handle to the device (necessary
-  to convert the hardware time stamp to system time). If obtaining
-  the hardware time stamp somehow fails, then the driver should
-  not fall back to software time stamping. The rationale is that
-  this would occur at a later time in the processing pipeline
-  than other software time stamping and therefore could lead
-  to unexpected deltas between time stamps.
-- If the driver did not call skb_hwtstamp_tx_in_progress(), then
+  hardware time stamp. skb_hwtstamp_tx() clones the original skb and
+  adds the timestamps, therefore the original skb has to be freed now.
+  If obtaining the hardware time stamp somehow fails, then the driver
+  should not fall back to software time stamping. The rationale is that
+  this would occur at a later time in the processing pipeline than other
+  software time stamping and therefore could lead to unexpected deltas
+  between time stamps.
+- If the driver did not call set skb_tx(skb)->in_progress, then
   dev_hard_start_xmit() checks whether software time stamping
   is wanted as fallback and potentially generates the time stamp.

From 2488f56d3699b84ee51d2940d1347345b8f9b0e1 Mon Sep 17 00:00:00 2001
From: Brice Goglin <brice@myri.com>
Date: Wed, 7 Apr 2010 22:23:45 -0700
Subject: [PATCH 069/464] myri10ge: fix rx_pause in myri10ge_set_pauseparam

Fix rx_pause management in myri10ge_set_pauseparam().

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/myri10ge/myri10ge.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index e84dd3ee9c5aa..3cb760706c012 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -1689,7 +1689,7 @@ myri10ge_set_pauseparam(struct net_device *netdev,
 	if (pause->tx_pause != mgp->pause)
 		return myri10ge_change_pause(mgp, pause->tx_pause);
 	if (pause->rx_pause != mgp->pause)
-		return myri10ge_change_pause(mgp, pause->tx_pause);
+		return myri10ge_change_pause(mgp, pause->rx_pause);
 	if (pause->autoneg != 0)
 		return -EINVAL;
 	return 0;

From 78e4fd26ef8b85c8cbb6803e18b6b1f970420e06 Mon Sep 17 00:00:00 2001
From: Huang Weiyi <weiyi.huang@gmail.com>
Date: Thu, 8 Apr 2010 19:50:08 +0800
Subject: [PATCH 070/464] ASoC: wm2000: remove unused #include
 <linux/version.h>

Remove unused #include <linux/version.h>('s) in
  sound/soc/codecs/wm2000.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm2000.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 217b02680597e..8de866618bf4a 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -23,7 +23,6 @@
 
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/firmware.h>

From 206b60e189c7cc2b4675687d66f167299a13a4d4 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 8 Apr 2010 11:31:24 +0200
Subject: [PATCH 071/464] ASoC: imx-ssi: honor IMX_SSI_DMA flag

When checking if we are DMA capable we have to check for the
IMX_SSI_DMA flag which is already set from platform_data instead
of setting it again when we want to do DMA.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@Slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/imx/imx-ssi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c
index 28e55c7b14b4c..1bf9dc88babf6 100644
--- a/sound/soc/imx/imx-ssi.c
+++ b/sound/soc/imx/imx-ssi.c
@@ -655,7 +655,8 @@ static int imx_ssi_probe(struct platform_device *pdev)
 	dai->private_data = ssi;
 
 	if ((cpu_is_mx27() || cpu_is_mx21()) &&
-			!(ssi->flags & IMX_SSI_USE_AC97)) {
+			!(ssi->flags & IMX_SSI_USE_AC97) &&
+			(ssi->flags & IMX_SSI_DMA)) {
 		ssi->flags |= IMX_SSI_DMA;
 		platform = imx_ssi_dma_mx2_init(pdev, ssi);
 	} else

From 671999cb5d8817611f865f3877f5a5b81372f61e Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 8 Apr 2010 11:31:25 +0200
Subject: [PATCH 072/464] ASoC: imx-pcm-dma-mx2: restart DMA after an error

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/imx/imx-pcm-dma-mx2.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index c78c000e2afe9..93272966b8489 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -70,7 +70,12 @@ static void imx_ssi_dma_callback(int channel, void *data)
 
 static void snd_imx_dma_err_callback(int channel, void *data, int err)
 {
-	pr_err("DMA error callback called\n");
+	struct snd_pcm_substream *substream = data;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct imx_pcm_dma_params *dma_params = rtd->dai->cpu_dai->dma_data;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
+	int ret;
 
 	pr_err("DMA timeout on channel %d -%s%s%s%s\n",
 		 channel,
@@ -78,6 +83,14 @@ static void snd_imx_dma_err_callback(int channel, void *data, int err)
 		 err & IMX_DMA_ERR_REQUEST ?  " request" : "",
 		 err & IMX_DMA_ERR_TRANSFER ? " transfer" : "",
 		 err & IMX_DMA_ERR_BUFFER ?   " buffer" : "");
+
+	imx_dma_disable(iprtd->dma);
+	ret = imx_dma_setup_sg(iprtd->dma, iprtd->sg_list, iprtd->sg_count,
+			IMX_DMA_LENGTH_LOOP, dma_params->dma_addr,
+			substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
+			DMA_MODE_WRITE : DMA_MODE_READ);
+	if (!ret)
+		imx_dma_enable(iprtd->dma);
 }
 
 static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream)

From 43a3cec01354573517f1348383e0ab6e6067076b Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 8 Apr 2010 11:31:26 +0200
Subject: [PATCH 073/464] ASoC: imx-ssi: Use a hrtimer in FIQ mode

Using a regular timer results in poll times < 1 jiffie with small
buffers, so we loaded the timer with the actual jiffie value. We can
be more accurate using a hrtimer. Also, we have to call
snd_pcm_period_elapsed after playing period_bytes and not
runtime->period_size (which is in samples and not in bytes).

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/imx/imx-pcm-fiq.c | 45 +++++++++++++++++--------------------
 1 file changed, 21 insertions(+), 24 deletions(-)

diff --git a/sound/soc/imx/imx-pcm-fiq.c b/sound/soc/imx/imx-pcm-fiq.c
index d9cb9849b033e..64df813b9af8c 100644
--- a/sound/soc/imx/imx-pcm-fiq.c
+++ b/sound/soc/imx/imx-pcm-fiq.c
@@ -38,20 +38,17 @@ struct imx_pcm_runtime_data {
 	unsigned long offset;
 	unsigned long last_offset;
 	unsigned long size;
-	struct timer_list timer;
-	int poll_time;
+	struct hrtimer hrt;
+	int poll_time_ns;
+	struct snd_pcm_substream *substream;
 };
 
-static inline void imx_ssi_set_next_poll(struct imx_pcm_runtime_data *iprtd)
+static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 {
-	iprtd->timer.expires = jiffies + iprtd->poll_time;
-}
-
-static void imx_ssi_timer_callback(unsigned long data)
-{
-	struct snd_pcm_substream *substream = (void *)data;
+	struct imx_pcm_runtime_data *iprtd =
+		container_of(hrt, struct imx_pcm_runtime_data, hrt);
+	struct snd_pcm_substream *substream = iprtd->substream;
 	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
 	struct pt_regs regs;
 	unsigned long delta;
 
@@ -71,16 +68,14 @@ static void imx_ssi_timer_callback(unsigned long data)
 
 	/* If we've transferred at least a period then report it and
 	 * reset our poll time */
-	if (delta >= runtime->period_size) {
+	if (delta >= iprtd->period) {
 		snd_pcm_period_elapsed(substream);
 		iprtd->last_offset = iprtd->offset;
-
-		imx_ssi_set_next_poll(iprtd);
 	}
 
-	/* Restart the timer; if we didn't report we'll run on the next tick */
-	add_timer(&iprtd->timer);
+	hrtimer_forward_now(hrt, ns_to_ktime(iprtd->poll_time_ns));
 
+	return HRTIMER_RESTART;
 }
 
 static struct fiq_handler fh = {
@@ -98,8 +93,8 @@ static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
 	iprtd->period = params_period_bytes(params) ;
 	iprtd->offset = 0;
 	iprtd->last_offset = 0;
-	iprtd->poll_time = HZ / (params_rate(params) / params_period_size(params));
-
+	iprtd->poll_time_ns = 1000000000 / params_rate(params) *
+				params_period_size(params);
 	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
 
 	return 0;
@@ -134,8 +129,8 @@ static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		imx_ssi_set_next_poll(iprtd);
-		add_timer(&iprtd->timer);
+		hrtimer_start(&iprtd->hrt, ns_to_ktime(iprtd->poll_time_ns),
+		      HRTIMER_MODE_REL);
 		if (++fiq_enable == 1)
 			enable_fiq(imx_pcm_fiq);
 
@@ -144,7 +139,7 @@ static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		del_timer(&iprtd->timer);
+		hrtimer_cancel(&iprtd->hrt);
 		if (--fiq_enable == 0)
 			disable_fiq(imx_pcm_fiq);
 
@@ -193,9 +188,10 @@ static int snd_imx_open(struct snd_pcm_substream *substream)
 	iprtd = kzalloc(sizeof(*iprtd), GFP_KERNEL);
 	runtime->private_data = iprtd;
 
-	init_timer(&iprtd->timer);
-	iprtd->timer.data = (unsigned long)substream;
-	iprtd->timer.function = imx_ssi_timer_callback;
+	iprtd->substream = substream;
+
+	hrtimer_init(&iprtd->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	iprtd->hrt.function = snd_hrtimer_callback;
 
 	ret = snd_pcm_hw_constraint_integer(substream->runtime,
 			SNDRV_PCM_HW_PARAM_PERIODS);
@@ -211,7 +207,8 @@ static int snd_imx_close(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
 
-	del_timer_sync(&iprtd->timer);
+	hrtimer_cancel(&iprtd->hrt);
+
 	kfree(iprtd);
 
 	return 0;

From 73a0e614580fb650846be1e9315f6b7b6069b9cc Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Tue, 6 Apr 2010 13:24:08 -0600
Subject: [PATCH 074/464] x86/PCI: ignore Consumer/Producer bit in ACPI window
 descriptions

ACPI Address Space Descriptors (used in _CRS) have a Consumer/Producer
bit that is supposed to distinguish regions that are consumed directly
by a device from those that are forwarded ("produced") by a bridge.
But BIOSes have apparently not used this consistently, and Windows
seems to ignore it, so I think Linux should ignore it as well.

I can't point to any of these supposed broken BIOSes, but since we
now rely on _CRS by default, I think it's safer to ignore this bit
from the start.

Here are details of my experiments with how Windows handles it:
    https://bugzilla.kernel.org/show_bug.cgi?id=15701

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 arch/x86/pci/acpi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index c7b1ebfb7da79..334153ca4c301 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -71,8 +71,7 @@ resource_to_addr(struct acpi_resource *resource,
 	if (ACPI_SUCCESS(status) &&
 	    (addr->resource_type == ACPI_MEMORY_RANGE ||
 	    addr->resource_type == ACPI_IO_RANGE) &&
-	    addr->address_length > 0 &&
-	    addr->producer_consumer == ACPI_PRODUCER) {
+	    addr->address_length > 0) {
 		return AE_OK;
 	}
 	return AE_ERROR;

From 4352aa5bbf1d0080c2dcf904ce1e4be0a1cb5937 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 25 Mar 2010 13:03:30 -0700
Subject: [PATCH 075/464] PCI aerdrv: use correct bit defines and add 2ms delay
 to aer_root_reset

While testing completion timeouts I found that hardware was not recovering.
It looks like the hot reset was never being propagated to the endpoint
devices on the bus due to the fact that we were clearing the bit too
quickly.

The documentation I have states that we should be transmitting hot reset
TS1s for 2ms.  To achieve this I have added a 2ms delay from the time we
set the secondary bus reset bit to the time we clear it.  In addition I
changed the define used for the secondary bus reset bit to match the
register define that was being used.

Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 drivers/pci/pcie/aer/aerdrv.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index aa495ad9bbd4b..7a711ee314b7f 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -244,11 +244,17 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev)
 
 	/* Assert Secondary Bus Reset */
 	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &p2p_ctrl);
-	p2p_ctrl |= PCI_CB_BRIDGE_CTL_CB_RESET;
+	p2p_ctrl |= PCI_BRIDGE_CTL_BUS_RESET;
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl);
 
+	/*
+	 * we should send hot reset message for 2ms to allow it time to
+	 * propogate to all downstream ports
+	 */
+	msleep(2);
+
 	/* De-assert Secondary Bus Reset */
-	p2p_ctrl &= ~PCI_CB_BRIDGE_CTL_CB_RESET;
+	p2p_ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl);
 
 	/*

From ab285f2b5290d92b7ec1a6f9aad54308dadf6157 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Thu, 8 Apr 2010 14:05:50 +0200
Subject: [PATCH 076/464] perf: Fix unsafe frame rewinding with hot regs
 fetching

When we fetch the hot regs and rewind to the nth caller, it
might happen that we dereference a frame pointer outside the
kernel stack boundaries, like in this example:

	perf_trace_sched_switch+0xd5/0x120
        schedule+0x6b5/0x860
        retint_careful+0xd/0x21

Since we directly dereference a userspace frame pointer here while
rewinding behind retint_careful, this may end up in a crash.

Fix this by simply using probe_kernel_address() when we rewind the
frame pointer.

This issue will have a much more proper fix in the next version of the
perf_arch_fetch_caller_regs() API that will only need to rewind to the
first caller.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: David Miller <davem@davemloft.net>
Cc: Archs <linux-arch@vger.kernel.org>
---
 arch/x86/kernel/dumpstack.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/dumpstack.h b/arch/x86/kernel/dumpstack.h
index e39e77168a378..e1a93be4fd444 100644
--- a/arch/x86/kernel/dumpstack.h
+++ b/arch/x86/kernel/dumpstack.h
@@ -14,6 +14,8 @@
 #define get_bp(bp) asm("movq %%rbp, %0" : "=r" (bp) :)
 #endif
 
+#include <linux/uaccess.h>
+
 extern void
 show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
 		unsigned long *stack, unsigned long bp, char *log_lvl);
@@ -42,8 +44,10 @@ static inline unsigned long rewind_frame_pointer(int n)
 	get_bp(frame);
 
 #ifdef CONFIG_FRAME_POINTER
-	while (n--)
-		frame = frame->next_frame;
+	while (n--) {
+		if (probe_kernel_address(&frame->next_frame, frame))
+			break;
+	}
 #endif
 
 	return (unsigned long)frame;

From 1223c67c0938d2df309fde618bd82c87c8c1af04 Mon Sep 17 00:00:00 2001
From: "Jorge Boncompte [DTI2]" <jorge@dti2.net>
Date: Thu, 8 Apr 2010 04:56:48 +0000
Subject: [PATCH 077/464] udp: fix for unicast RX path optimization

Commits 5051ebd275de672b807c28d93002c2fb0514a3c9 and
5051ebd275de672b807c28d93002c2fb0514a3c9 ("ipv[46]: udp: optimize unicast RX
path") broke some programs.

	After upgrading a L2TP server to 2.6.33 it started to fail, tunnels going up an
down, after the 10th tunnel came up. My modified rp-l2tp uses a global
unconnected socket bound to (INADDR_ANY, 1701) and one connected socket per
tunnel after parameter negotiation.

	After ten sockets were open and due to mixed parameters to
udp[46]_lib_lookup2() kernel started to drop packets.

Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/udp.c | 4 ++--
 net/ipv6/udp.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 7af756d0f9317..24272c4cfbcaa 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -471,8 +471,8 @@ static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr,
 			if (hslot->count < hslot2->count)
 				goto begin;
 
-			result = udp4_lib_lookup2(net, INADDR_ANY, sport,
-						  daddr, hnum, dif,
+			result = udp4_lib_lookup2(net, saddr, sport,
+						  INADDR_ANY, hnum, dif,
 						  hslot2, slot2);
 		}
 		rcu_read_unlock();
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 3c0c9c755c928..787e480cc0963 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -258,8 +258,8 @@ static struct sock *__udp6_lib_lookup(struct net *net,
 			if (hslot->count < hslot2->count)
 				goto begin;
 
-			result = udp6_lib_lookup2(net, &in6addr_any, sport,
-						  daddr, hnum, dif,
+			result = udp6_lib_lookup2(net, saddr, sport,
+						  &in6addr_any, hnum, dif,
 						  hslot2, slot2);
 		}
 		rcu_read_unlock();

From 2626419ad5be1a054d350786b684b41d23de1538 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Thu, 8 Apr 2010 11:32:30 -0700
Subject: [PATCH 078/464] tcp: Set CHECKSUM_UNNECESSARY in tcp_init_nondata_skb

Back in commit 04a0551c87363f100b04d28d7a15a632b70e18e7
("loopback: Drop obsolete ip_summed setting") we stopped
setting CHECKSUM_UNNECESSARY in the loopback xmit.

This is because such a setting was a lie since it implies that the
checksum field of the packet is properly filled in.

Instead what happens normally is that CHECKSUM_PARTIAL is set and
skb->csum is calculated as needed.

But this was only happening for TCP data packets (via the
skb->ip_summed assignment done in tcp_sendmsg()).  It doesn't
happen for non-data packets like ACKs etc.

Fix this by setting skb->ip_summed in the common non-data packet
constructor.  It already is setting skb->csum to zero.

But this reminds us that we still have things like ip_output.c's
ip_dev_loopback_xmit() which sets skb->ip_summed to the value
CHECKSUM_UNNECESSARY, which Herbert's patch teaches us is not
valid.  So we'll have to address that at some point too.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_output.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index f181b78f2385b..00afbb0c7e5fa 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -349,6 +349,7 @@ static inline void TCP_ECN_send(struct sock *sk, struct sk_buff *skb,
  */
 static void tcp_init_nondata_skb(struct sk_buff *skb, u32 seq, u8 flags)
 {
+	skb->ip_summed = CHECKSUM_PARTIAL;
 	skb->csum = 0;
 
 	TCP_SKB_CB(skb)->flags = flags;

From ece6444c2fe80dab679beb5f0d58b091f1933b00 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Thu, 8 Apr 2010 13:17:37 -0700
Subject: [PATCH 079/464] iwlwifi: need check for valid qos packet before free

For 4965, need to check it is valid qos frame before free, only valid
QoS frame has the tid used to free the packets.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-4965.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 83c52a682622a..8972166386cb5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2015,7 +2015,9 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
 			IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
 					   "%d index %d\n", scd_ssn , index);
 			freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-			iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
+			if (qc)
+				iwl_free_tfds_in_queue(priv, sta_id,
+						       tid, freed);
 
 			if (priv->mac80211_registered &&
 			    (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
@@ -2041,14 +2043,17 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
 				   tx_resp->failure_frame);
 
 		freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-		iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
+		if (qc && likely(sta_id != IWL_INVALID_STATION))
+			iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
+		else if (sta_id == IWL_INVALID_STATION)
+			IWL_DEBUG_TX_REPLY(priv, "Station not known\n");
 
 		if (priv->mac80211_registered &&
 		    (iwl_queue_space(&txq->q) > txq->q.low_mark))
 			iwl_wake_queue(priv, txq_id);
 	}
-
-	iwl_txq_check_empty(priv, sta_id, tid, txq_id);
+	if (qc && likely(sta_id != IWL_INVALID_STATION))
+		iwl_txq_check_empty(priv, sta_id, tid, txq_id);
 
 	if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
 		IWL_ERR(priv, "TODO:  Implement Tx ABORT REQUIRED!!!\n");

From 229bab6bacc42295f13c0434772381a88ce2308b Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Mon, 15 Mar 2010 11:26:56 +0300
Subject: [PATCH 080/464] [SCSI] dpt_i2o: several use after free issues

adpt_i2o_delete_hba() calls kfree() so we have to save "pHba->next"
before calling it.  Also inside adpt_i2o_delete_hba() itself, there
was another use after free bug which I fixed by moving the kfree()
down a line.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/dpt_i2o.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 496764349c414..0435d044c9da1 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -188,7 +188,8 @@ MODULE_DEVICE_TABLE(pci,dptids);
 static int adpt_detect(struct scsi_host_template* sht)
 {
 	struct pci_dev *pDev = NULL;
-	adpt_hba* pHba;
+	adpt_hba *pHba;
+	adpt_hba *next;
 
 	PINFO("Detecting Adaptec I2O RAID controllers...\n");
 
@@ -206,7 +207,8 @@ static int adpt_detect(struct scsi_host_template* sht)
 	}
 
 	/* In INIT state, Activate IOPs */
-	for (pHba = hba_chain; pHba; pHba = pHba->next) {
+	for (pHba = hba_chain; pHba; pHba = next) {
+		next = pHba->next;
 		// Activate does get status , init outbound, and get hrt
 		if (adpt_i2o_activate_hba(pHba) < 0) {
 			adpt_i2o_delete_hba(pHba);
@@ -243,7 +245,8 @@ static int adpt_detect(struct scsi_host_template* sht)
 	PDEBUG("HBA's in OPERATIONAL state\n");
 
 	printk("dpti: If you have a lot of devices this could take a few minutes.\n");
-	for (pHba = hba_chain; pHba; pHba = pHba->next) {
+	for (pHba = hba_chain; pHba; pHba = next) {
+		next = pHba->next;
 		printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name);
 		if (adpt_i2o_lct_get(pHba) < 0){
 			adpt_i2o_delete_hba(pHba);
@@ -263,7 +266,8 @@ static int adpt_detect(struct scsi_host_template* sht)
 		adpt_sysfs_class = NULL;
 	}
 
-	for (pHba = hba_chain; pHba; pHba = pHba->next) {
+	for (pHba = hba_chain; pHba; pHba = next) {
+		next = pHba->next;
 		if (adpt_scsi_host_alloc(pHba, sht) < 0){
 			adpt_i2o_delete_hba(pHba);
 			continue;
@@ -1229,11 +1233,10 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba)
 		}
 	}
 	pci_dev_put(pHba->pDev);
-	kfree(pHba);
-
 	if (adpt_sysfs_class)
 		device_destroy(adpt_sysfs_class,
 				MKDEV(DPTI_I2O_MAJOR, pHba->unit));
+	kfree(pHba);
 
 	if(hba_count <= 0){
 		unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);   

From 4ec3fdbef17d0266826b56b33735dc9dada58c27 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Tue, 16 Mar 2010 16:23:57 +0100
Subject: [PATCH 081/464] [SCSI] be2iscsi: fix lock imbalance

Stanse found that one error path in mgmt_invalidate_icds omits to unlock
ctrl->mbox_lock. Fix that.

Added in 756d29c8c7ed8887ed7d752371ce2f (Enable async mode for mcc rings)
where the spinlock was moved.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/be2iscsi/be_mgmt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 72617b650a7e5..e641922f20bc5 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -169,6 +169,7 @@ unsigned char mgmt_invalidate_icds(struct beiscsi_hba *phba,
 		SE_DEBUG(DBG_LVL_1,
 			 "Failed to allocate memory for"
 			 "mgmt_invalidate_icds \n");
+		spin_unlock(&ctrl->mbox_lock);
 		return -1;
 	}
 	nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);

From 67221a4226a5fc48e413e2050db266bb171753c4 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Tue, 16 Mar 2010 16:23:58 +0100
Subject: [PATCH 082/464] [SCSI] lpfc: fix lock imbalances

Stanse found that two error paths in lpfc_bsg_rport_els_cmp and
lpfc_issue_ct_rsp_cmp omits to unlock phba->ct_ev_lock. It is
because they wrongly unlock phba->hbalock instead. Fix that.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/lpfc/lpfc_bsg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index ec3723831e896..d62b3e4679265 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -433,7 +433,7 @@ lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
 	dd_data = cmdiocbq->context1;
 	/* normal completion and timeout crossed paths, already done */
 	if (!dd_data) {
-		spin_unlock_irqrestore(&phba->hbalock, flags);
+		spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
 		return;
 	}
 
@@ -1196,7 +1196,7 @@ lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
 	dd_data = cmdiocbq->context1;
 	/* normal completion and timeout crossed paths, already done */
 	if (!dd_data) {
-		spin_unlock_irqrestore(&phba->hbalock, flags);
+		spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
 		return;
 	}
 

From bc0beb44f27dc068c1daefc79826c07e0b22ef6c Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Tue, 16 Mar 2010 16:23:59 +0100
Subject: [PATCH 083/464] [SCSI] qla2xxx: fix lock imbalance

Stanse found that one error path in qla24xx_bsg_timeout omits to
unlock ha->hardware_lock. Fix that.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/qla2xxx/qla_attr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 359e9a71a0214..1c7ef55966fb5 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -2393,6 +2393,7 @@ qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
 	return 0;
 
 done:
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	if (bsg_job->request->msgcode == FC_BSG_HST_CT)
 		kfree(sp->fcport);
 	kfree(sp->ctx);

From 531d8791accf1464bc6854ff69d08dd866189d17 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Fri, 9 Apr 2010 10:57:33 +0200
Subject: [PATCH 084/464] ALSA: hda - Fix auto-parser of ALC269vb for HP pin
 NID 0x21

ALC269vb has an alternative HP pin 0x21 in addition.
Fix the parser to recognize it.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2971e48e50ade..fbbdfbc8a1ca7 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -12869,6 +12869,7 @@ static int alc268_new_analog_output(struct alc_spec *spec, hda_nid_t nid,
 		dac = 0x02;
 		break;
 	case 0x15:
+	case 0x21: /* ALC269vb has this pin, too */
 		dac = 0x03;
 		break;
 	default:

From 226b1ec8c18bcb6d1aa448a29b2c8aeae1946228 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Fri, 9 Apr 2010 11:01:20 +0200
Subject: [PATCH 085/464] ALSA: hda - Fix setup for ALC269vb amic and dmic
 models

Corrected HP and mic pins for ALC269vb amic and dmic models.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index fbbdfbc8a1ca7..9b58f29833e6e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -13789,19 +13789,19 @@ static void alc269_laptop_unsol_event(struct hda_codec *codec,
 	}
 }
 
-static void alc269_laptop_dmic_setup(struct hda_codec *codec)
+static void alc269_laptop_amic_setup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
 	spec->autocfg.hp_pins[0] = 0x15;
 	spec->autocfg.speaker_pins[0] = 0x14;
 	spec->ext_mic.pin = 0x18;
 	spec->ext_mic.mux_idx = 0;
-	spec->int_mic.pin = 0x12;
-	spec->int_mic.mux_idx = 5;
+	spec->int_mic.pin = 0x19;
+	spec->int_mic.mux_idx = 1;
 	spec->auto_mic = 1;
 }
 
-static void alc269vb_laptop_dmic_setup(struct hda_codec *codec)
+static void alc269_laptop_dmic_setup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
 	spec->autocfg.hp_pins[0] = 0x15;
@@ -13809,14 +13809,14 @@ static void alc269vb_laptop_dmic_setup(struct hda_codec *codec)
 	spec->ext_mic.pin = 0x18;
 	spec->ext_mic.mux_idx = 0;
 	spec->int_mic.pin = 0x12;
-	spec->int_mic.mux_idx = 6;
+	spec->int_mic.mux_idx = 5;
 	spec->auto_mic = 1;
 }
 
-static void alc269_laptop_amic_setup(struct hda_codec *codec)
+static void alc269vb_laptop_amic_setup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	spec->autocfg.hp_pins[0] = 0x15;
+	spec->autocfg.hp_pins[0] = 0x21;
 	spec->autocfg.speaker_pins[0] = 0x14;
 	spec->ext_mic.pin = 0x18;
 	spec->ext_mic.mux_idx = 0;
@@ -13825,6 +13825,18 @@ static void alc269_laptop_amic_setup(struct hda_codec *codec)
 	spec->auto_mic = 1;
 }
 
+static void alc269vb_laptop_dmic_setup(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	spec->autocfg.hp_pins[0] = 0x21;
+	spec->autocfg.speaker_pins[0] = 0x14;
+	spec->ext_mic.pin = 0x18;
+	spec->ext_mic.mux_idx = 0;
+	spec->int_mic.pin = 0x12;
+	spec->int_mic.mux_idx = 6;
+	spec->auto_mic = 1;
+}
+
 static void alc269_laptop_inithook(struct hda_codec *codec)
 {
 	alc269_speaker_automute(codec);
@@ -14162,7 +14174,7 @@ static struct alc_config_preset alc269_presets[] = {
 		.num_channel_mode = ARRAY_SIZE(alc269_modes),
 		.channel_mode = alc269_modes,
 		.unsol_event = alc269_laptop_unsol_event,
-		.setup = alc269_laptop_amic_setup,
+		.setup = alc269vb_laptop_amic_setup,
 		.init_hook = alc269_laptop_inithook,
 	},
 	[ALC269VB_DMIC] = {

From 7f311a46916a3be00a1a8e3f1bdf461d08f1d263 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 9 Apr 2010 17:32:23 +0200
Subject: [PATCH 086/464] ALSA: hda - Fix initial capture source connections of
 ALC880/260

The widget connections of ADC of ALC880 and ALC2260 aren't initialized,
thus it might point to invalid pin.  This can be a problem when mode=auto
and there is only one input pin.  Then user can't change the connection
at all.

This patch adds the code to initialize the input pin connection of these
codecs.

Reference: Novell bnc#594363
	https://bugzilla.novell.com/show_bug.cgi?id=594363

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 9b58f29833e6e..8d60b1f25ce19 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4809,6 +4809,25 @@ static void alc880_auto_init_analog_input(struct hda_codec *codec)
 	}
 }
 
+static void alc880_auto_init_input_src(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	int c;
+
+	for (c = 0; c < spec->num_adc_nids; c++) {
+		unsigned int mux_idx;
+		const struct hda_input_mux *imux;
+		mux_idx = c >= spec->num_mux_defs ? 0 : c;
+		imux = &spec->input_mux[mux_idx];
+		if (!imux->num_items && mux_idx > 0)
+			imux = &spec->input_mux[0];
+		if (imux)
+			snd_hda_codec_write(codec, spec->adc_nids[c], 0,
+					    AC_VERB_SET_CONNECT_SEL,
+					    imux->items[0].index);
+	}
+}
+
 /* parse the BIOS configuration and set up the alc_spec */
 /* return 1 if successful, 0 if the proper config is not found,
  * or a negative error code
@@ -4887,6 +4906,7 @@ static void alc880_auto_init(struct hda_codec *codec)
 	alc880_auto_init_multi_out(codec);
 	alc880_auto_init_extra_out(codec);
 	alc880_auto_init_analog_input(codec);
+	alc880_auto_init_input_src(codec);
 	if (spec->unsol_event)
 		alc_inithook(codec);
 }
@@ -6398,6 +6418,8 @@ static void alc260_auto_init_analog_input(struct hda_codec *codec)
 	}
 }
 
+#define alc260_auto_init_input_src	alc880_auto_init_input_src
+
 /*
  * generic initialization of ADC, input mixers and output mixers
  */
@@ -6484,6 +6506,7 @@ static void alc260_auto_init(struct hda_codec *codec)
 	struct alc_spec *spec = codec->spec;
 	alc260_auto_init_multi_out(codec);
 	alc260_auto_init_analog_input(codec);
+	alc260_auto_init_input_src(codec);
 	if (spec->unsol_event)
 		alc_inithook(codec);
 }

From 8b9fce77737ae9983f61ec56cd53f52fb738b2c7 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 1 Apr 2010 11:24:23 -0700
Subject: [PATCH 087/464] iwlwifi: work around bogus active chains detection

The current algorithm will sometimes "detect" that
more chains are enabled than are really present in
the device because, for unknown reasons, the ucode
sends up all-zeroes signal values.

The simplest way of solving this is to restrict the
active chains mask to the chains we know are really
present on the device.

This fixes a bug with some devices where, since sometimes
more chains are enabled than really present, the system would hang.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-calib.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index 845831ac053e2..64de42be7ea31 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -807,6 +807,18 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
 		}
 	}
 
+	/*
+	 * The above algorithm sometimes fails when the ucode
+	 * reports 0 for all chains. It's not clear why that
+	 * happens to start with, but it is then causing trouble
+	 * because this can make us enable more chains than the
+	 * hardware really has.
+	 *
+	 * To be safe, simply mask out any chains that we know
+	 * are not on the device.
+	 */
+	active_chains &= priv->hw_params.valid_rx_ant;
+
 	num_tx_chains = 0;
 	for (i = 0; i < NUM_RX_CHAINS; i++) {
 		/* loops on all the bits of

From 2844a76a25a2fc2f5025cf128c95a14d86146d33 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Fri, 9 Apr 2010 15:46:42 -0700
Subject: [PATCH 088/464] ceph: decode v5 of osdmap (pool names) [protocol
 change]

Teach the client to decode an updated format for the osdmap.  The new
format includes pool names, which will be useful shortly.  Get this change
in earlier rather than later.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/osdmap.c | 180 ++++++++++++++++++++++++++++-------------------
 fs/ceph/osdmap.h |   1 +
 fs/ceph/rados.h  |   6 +-
 3 files changed, 114 insertions(+), 73 deletions(-)

diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index d82fe87c2a6e6..7526d6d330164 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -312,71 +312,6 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
 	return ERR_PTR(err);
 }
 
-
-/*
- * osd map
- */
-void ceph_osdmap_destroy(struct ceph_osdmap *map)
-{
-	dout("osdmap_destroy %p\n", map);
-	if (map->crush)
-		crush_destroy(map->crush);
-	while (!RB_EMPTY_ROOT(&map->pg_temp)) {
-		struct ceph_pg_mapping *pg =
-			rb_entry(rb_first(&map->pg_temp),
-				 struct ceph_pg_mapping, node);
-		rb_erase(&pg->node, &map->pg_temp);
-		kfree(pg);
-	}
-	while (!RB_EMPTY_ROOT(&map->pg_pools)) {
-		struct ceph_pg_pool_info *pi =
-			rb_entry(rb_first(&map->pg_pools),
-				 struct ceph_pg_pool_info, node);
-		rb_erase(&pi->node, &map->pg_pools);
-		kfree(pi);
-	}
-	kfree(map->osd_state);
-	kfree(map->osd_weight);
-	kfree(map->osd_addr);
-	kfree(map);
-}
-
-/*
- * adjust max osd value.  reallocate arrays.
- */
-static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
-{
-	u8 *state;
-	struct ceph_entity_addr *addr;
-	u32 *weight;
-
-	state = kcalloc(max, sizeof(*state), GFP_NOFS);
-	addr = kcalloc(max, sizeof(*addr), GFP_NOFS);
-	weight = kcalloc(max, sizeof(*weight), GFP_NOFS);
-	if (state == NULL || addr == NULL || weight == NULL) {
-		kfree(state);
-		kfree(addr);
-		kfree(weight);
-		return -ENOMEM;
-	}
-
-	/* copy old? */
-	if (map->osd_state) {
-		memcpy(state, map->osd_state, map->max_osd*sizeof(*state));
-		memcpy(addr, map->osd_addr, map->max_osd*sizeof(*addr));
-		memcpy(weight, map->osd_weight, map->max_osd*sizeof(*weight));
-		kfree(map->osd_state);
-		kfree(map->osd_addr);
-		kfree(map->osd_weight);
-	}
-
-	map->osd_state = state;
-	map->osd_weight = weight;
-	map->osd_addr = addr;
-	map->max_osd = max;
-	return 0;
-}
-
 /*
  * rbtree of pg_mapping for handling pg_temp (explicit mapping of pgid
  * to a set of osds)
@@ -480,6 +415,13 @@ static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
 	return NULL;
 }
 
+static void __remove_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *pi)
+{
+	rb_erase(&pi->node, root);
+	kfree(pi->name);
+	kfree(pi);
+}
+
 void __decode_pool(void **p, struct ceph_pg_pool_info *pi)
 {
 	ceph_decode_copy(p, &pi->v, sizeof(pi->v));
@@ -488,6 +430,98 @@ void __decode_pool(void **p, struct ceph_pg_pool_info *pi)
 	*p += le32_to_cpu(pi->v.num_removed_snap_intervals) * sizeof(u64) * 2;
 }
 
+static int __decode_pool_names(void **p, void *end, struct ceph_osdmap *map)
+{
+	struct ceph_pg_pool_info *pi;
+	u32 num, len, pool;
+
+	ceph_decode_32_safe(p, end, num, bad);
+	dout(" %d pool names\n", num);
+	while (num--) {
+		ceph_decode_32_safe(p, end, pool, bad);
+		ceph_decode_32_safe(p, end, len, bad);
+		dout("  pool %d len %d\n", pool, len);
+		pi = __lookup_pg_pool(&map->pg_pools, pool);
+		if (pi) {
+			kfree(pi->name);
+			pi->name = kmalloc(len + 1, GFP_NOFS);
+			if (pi->name) {
+				memcpy(pi->name, *p, len);
+				pi->name[len] = '\0';
+				dout("  name is %s\n", pi->name);
+			}
+		}
+		*p += len;
+	}
+	return 0;
+
+bad:
+	return -EINVAL;
+}
+
+/*
+ * osd map
+ */
+void ceph_osdmap_destroy(struct ceph_osdmap *map)
+{
+	dout("osdmap_destroy %p\n", map);
+	if (map->crush)
+		crush_destroy(map->crush);
+	while (!RB_EMPTY_ROOT(&map->pg_temp)) {
+		struct ceph_pg_mapping *pg =
+			rb_entry(rb_first(&map->pg_temp),
+				 struct ceph_pg_mapping, node);
+		rb_erase(&pg->node, &map->pg_temp);
+		kfree(pg);
+	}
+	while (!RB_EMPTY_ROOT(&map->pg_pools)) {
+		struct ceph_pg_pool_info *pi =
+			rb_entry(rb_first(&map->pg_pools),
+				 struct ceph_pg_pool_info, node);
+		__remove_pg_pool(&map->pg_pools, pi);
+	}
+	kfree(map->osd_state);
+	kfree(map->osd_weight);
+	kfree(map->osd_addr);
+	kfree(map);
+}
+
+/*
+ * adjust max osd value.  reallocate arrays.
+ */
+static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
+{
+	u8 *state;
+	struct ceph_entity_addr *addr;
+	u32 *weight;
+
+	state = kcalloc(max, sizeof(*state), GFP_NOFS);
+	addr = kcalloc(max, sizeof(*addr), GFP_NOFS);
+	weight = kcalloc(max, sizeof(*weight), GFP_NOFS);
+	if (state == NULL || addr == NULL || weight == NULL) {
+		kfree(state);
+		kfree(addr);
+		kfree(weight);
+		return -ENOMEM;
+	}
+
+	/* copy old? */
+	if (map->osd_state) {
+		memcpy(state, map->osd_state, map->max_osd*sizeof(*state));
+		memcpy(addr, map->osd_addr, map->max_osd*sizeof(*addr));
+		memcpy(weight, map->osd_weight, map->max_osd*sizeof(*weight));
+		kfree(map->osd_state);
+		kfree(map->osd_addr);
+		kfree(map->osd_weight);
+	}
+
+	map->osd_state = state;
+	map->osd_weight = weight;
+	map->osd_addr = addr;
+	map->max_osd = max;
+	return 0;
+}
+
 /*
  * decode a full map.
  */
@@ -524,7 +558,7 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
 	ceph_decode_32_safe(p, end, max, bad);
 	while (max--) {
 		ceph_decode_need(p, end, 4 + 1 + sizeof(pi->v), bad);
-		pi = kmalloc(sizeof(*pi), GFP_NOFS);
+		pi = kzalloc(sizeof(*pi), GFP_NOFS);
 		if (!pi)
 			goto bad;
 		pi->id = ceph_decode_32(p);
@@ -537,6 +571,10 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
 		__decode_pool(p, pi);
 		__insert_pg_pool(&map->pg_pools, pi);
 	}
+
+	if (version >= 5 && __decode_pool_names(p, end, map) < 0)
+		goto bad;
+
 	ceph_decode_32_safe(p, end, map->pool_max, bad);
 
 	ceph_decode_32_safe(p, end, map->flags, bad);
@@ -710,7 +748,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
 		}
 		pi = __lookup_pg_pool(&map->pg_pools, pool);
 		if (!pi) {
-			pi = kmalloc(sizeof(*pi), GFP_NOFS);
+			pi = kzalloc(sizeof(*pi), GFP_NOFS);
 			if (!pi) {
 				err = -ENOMEM;
 				goto bad;
@@ -720,6 +758,8 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
 		}
 		__decode_pool(p, pi);
 	}
+	if (version >= 5 && __decode_pool_names(p, end, map) < 0)
+		goto bad;
 
 	/* old_pool */
 	ceph_decode_32_safe(p, end, len, bad);
@@ -728,10 +768,8 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
 
 		ceph_decode_32_safe(p, end, pool, bad);
 		pi = __lookup_pg_pool(&map->pg_pools, pool);
-		if (pi) {
-			rb_erase(&pi->node, &map->pg_pools);
-			kfree(pi);
-		}
+		if (pi)
+			__remove_pg_pool(&map->pg_pools, pi);
 	}
 
 	/* new_up */
diff --git a/fs/ceph/osdmap.h b/fs/ceph/osdmap.h
index 1fb55afb26426..8bc9f1e4f562f 100644
--- a/fs/ceph/osdmap.h
+++ b/fs/ceph/osdmap.h
@@ -23,6 +23,7 @@ struct ceph_pg_pool_info {
 	int id;
 	struct ceph_pg_pool v;
 	int pg_num_mask, pgp_num_mask, lpg_num_mask, lpgp_num_mask;
+	char *name;
 };
 
 struct ceph_pg_mapping {
diff --git a/fs/ceph/rados.h b/fs/ceph/rados.h
index 26ac8b89a6767..a1fc1d017b585 100644
--- a/fs/ceph/rados.h
+++ b/fs/ceph/rados.h
@@ -11,8 +11,10 @@
 /*
  * osdmap encoding versions
  */
-#define CEPH_OSDMAP_INC_VERSION 4
-#define CEPH_OSDMAP_VERSION     4
+#define CEPH_OSDMAP_INC_VERSION     5
+#define CEPH_OSDMAP_INC_VERSION_EXT 5
+#define CEPH_OSDMAP_VERSION         5
+#define CEPH_OSDMAP_VERSION_EXT     5
 
 /*
  * fs id

From 65384a1d41c4e91f0b49d90d11b7f424d6e5c58e Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Fri, 9 Apr 2010 15:01:25 -0400
Subject: [PATCH 089/464] drm/radeon/kms: more atom parser fixes (v2)

shr/shl ops need the full dst rather than the pre-masked
version.  Fixes fdo bug 27478 and kernel bug 15738.

v2: remove some unsed vars, add comments

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/atom.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index 58845e053b368..a8bf50042464b 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -907,11 +907,16 @@ static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
 	uint8_t attr = U8((*ptr)++), shift;
 	uint32_t saved, dst;
 	int dptr = *ptr;
+	uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
 	SDEBUG("   dst: ");
 	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
+	/* op needs to full dst value */
+	dst = saved;
 	shift = atom_get_src(ctx, attr, ptr);
 	SDEBUG("   shift: %d\n", shift);
 	dst <<= shift;
+	dst &= atom_arg_mask[dst_align];
+	dst >>= atom_arg_shift[dst_align];
 	SDEBUG("   dst: ");
 	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 }
@@ -921,11 +926,16 @@ static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
 	uint8_t attr = U8((*ptr)++), shift;
 	uint32_t saved, dst;
 	int dptr = *ptr;
+	uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
 	SDEBUG("   dst: ");
 	dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
+	/* op needs to full dst value */
+	dst = saved;
 	shift = atom_get_src(ctx, attr, ptr);
 	SDEBUG("   shift: %d\n", shift);
 	dst >>= shift;
+	dst &= atom_arg_mask[dst_align];
+	dst >>= atom_arg_shift[dst_align];
 	SDEBUG("   dst: ");
 	atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 }

From 80e60639f1b7c121a7fea53920c5a4b94009361a Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 25 Mar 2010 13:51:05 -0400
Subject: [PATCH 090/464] NFSv4: Fall back to ordinary lookup if
 nfs4_atomic_open() returns EISDIR

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
---
 fs/nfs/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index c6f2750648f45..be46f26c9a561 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1025,12 +1025,12 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
 				res = NULL;
 				goto out;
 			/* This turned out not to be a regular file */
+			case -EISDIR:
 			case -ENOTDIR:
 				goto no_open;
 			case -ELOOP:
 				if (!(nd->intent.open.flags & O_NOFOLLOW))
 					goto no_open;
-			/* case -EISDIR: */
 			/* case -EINVAL: */
 			default:
 				goto out;

From 1544fa0f7a46241582abc48f07b74f3d846379e4 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 25 Mar 2010 13:54:49 -0400
Subject: [PATCH 091/464] NFS: Fix the mode calculation in
 nfs_find_open_context

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/inode.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 737128f777f36..50a56edca0b57 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -623,10 +623,10 @@ struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_c
 	list_for_each_entry(pos, &nfsi->open_files, list) {
 		if (cred != NULL && pos->cred != cred)
 			continue;
-		if ((pos->mode & mode) == mode) {
-			ctx = get_nfs_open_context(pos);
-			break;
-		}
+		if ((pos->mode & (FMODE_READ|FMODE_WRITE)) != mode)
+			continue;
+		ctx = get_nfs_open_context(pos);
+		break;
 	}
 	spin_unlock(&inode->i_lock);
 	return ctx;

From b80c3cb628f0ebc241b02e38dd028969fb8026a2 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 9 Apr 2010 19:07:07 -0400
Subject: [PATCH 092/464] NFS: Ensure that writeback_single_inode() calls
 write_inode() when syncing

Since writeback_single_inode() checks the inode->i_state flags _before_ it
flushes out the data, we need to ensure that the I_DIRTY_DATASYNC flag is
already set. Otherwise we risk not seeing a call to write_inode(), which
again means that we break fsync() et al...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/write.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 53ff70e239933..7f40ea3055433 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -421,6 +421,7 @@ static void
 nfs_mark_request_dirty(struct nfs_page *req)
 {
 	__set_page_dirty_nobuffers(req->wb_page);
+	__mark_inode_dirty(req->wb_page->mapping->host, I_DIRTY_DATASYNC);
 }
 
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
@@ -660,6 +661,7 @@ static int nfs_writepage_setup(struct nfs_open_context *ctx, struct page *page,
 	req = nfs_setup_write_request(ctx, page, offset, count);
 	if (IS_ERR(req))
 		return PTR_ERR(req);
+	nfs_mark_request_dirty(req);
 	/* Update file length */
 	nfs_grow_file(page, offset, count);
 	nfs_mark_uptodate(page, req->wb_pgbase, req->wb_bytes);
@@ -739,8 +741,6 @@ int nfs_updatepage(struct file *file, struct page *page,
 	status = nfs_writepage_setup(ctx, page, offset, count);
 	if (status < 0)
 		nfs_set_pageerror(page);
-	else
-		__set_page_dirty_nobuffers(page);
 
 	dprintk("NFS:       nfs_updatepage returns %d (isize %lld)\n",
 			status, (long long)i_size_read(inode));

From a6305ddb080fb483ca41ca56cacb6f96089f0c8e Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 9 Apr 2010 19:07:08 -0400
Subject: [PATCH 093/464] NFS: Fix a race with the new commit code

This patch fixes a race which occurs due to the fact that we release the
PG_writeback flag while still holding the nfs_page locked.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/write.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 7f40ea3055433..40297c4f1ee06 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -201,6 +201,7 @@ static int nfs_set_page_writeback(struct page *page)
 		struct inode *inode = page->mapping->host;
 		struct nfs_server *nfss = NFS_SERVER(inode);
 
+		page_cache_get(page);
 		if (atomic_long_inc_return(&nfss->writeback) >
 				NFS_CONGESTION_ON_THRESH) {
 			set_bdi_congested(&nfss->backing_dev_info,
@@ -216,6 +217,7 @@ static void nfs_end_page_writeback(struct page *page)
 	struct nfs_server *nfss = NFS_SERVER(inode);
 
 	end_page_writeback(page);
+	page_cache_release(page);
 	if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
 		clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
 }
@@ -665,6 +667,7 @@ static int nfs_writepage_setup(struct nfs_open_context *ctx, struct page *page,
 	/* Update file length */
 	nfs_grow_file(page, offset, count);
 	nfs_mark_uptodate(page, req->wb_pgbase, req->wb_bytes);
+	nfs_mark_request_dirty(req);
 	nfs_clear_page_tag_locked(req);
 	return 0;
 }
@@ -749,13 +752,12 @@ int nfs_updatepage(struct file *file, struct page *page,
 
 static void nfs_writepage_release(struct nfs_page *req)
 {
+	struct page *page = req->wb_page;
 
-	if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req)) {
-		nfs_end_page_writeback(req->wb_page);
+	if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req))
 		nfs_inode_remove_request(req);
-	} else
-		nfs_end_page_writeback(req->wb_page);
 	nfs_clear_page_tag_locked(req);
+	nfs_end_page_writeback(page);
 }
 
 static int flush_task_priority(int how)
@@ -847,9 +849,11 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
  */
 static void nfs_redirty_request(struct nfs_page *req)
 {
+	struct page *page = req->wb_page;
+
 	nfs_mark_request_dirty(req);
-	nfs_end_page_writeback(req->wb_page);
 	nfs_clear_page_tag_locked(req);
+	nfs_end_page_writeback(page);
 }
 
 /*
@@ -1084,16 +1088,15 @@ static void nfs_writeback_release_full(void *calldata)
 		if (nfs_write_need_commit(data)) {
 			memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
 			nfs_mark_request_commit(req);
-			nfs_end_page_writeback(page);
 			dprintk(" marked for commit\n");
 			goto next;
 		}
 		dprintk(" OK\n");
 remove_request:
-		nfs_end_page_writeback(page);
 		nfs_inode_remove_request(req);
 	next:
 		nfs_clear_page_tag_locked(req);
+		nfs_end_page_writeback(page);
 	}
 	nfs_writedata_release(calldata);
 }

From 2c61be0a9478258f77b66208a0c4b1f5f8161c3c Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 9 Apr 2010 19:54:50 -0400
Subject: [PATCH 094/464] NFS: Ensure that the WRITE and COMMIT RPC calls are
 always uninterruptible

We always want to ensure that WRITE and COMMIT completes, whether or not
the user presses ^C. Do this by making the call asynchronous, and allowing
the user to do an interruptible wait for rpc_task completion.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/write.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 40297c4f1ee06..de38d63aa9208 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -781,7 +781,6 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
 		int how)
 {
 	struct inode *inode = req->wb_context->path.dentry->d_inode;
-	int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
 	int priority = flush_task_priority(how);
 	struct rpc_task *task;
 	struct rpc_message msg = {
@@ -796,9 +795,10 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
 		.callback_ops = call_ops,
 		.callback_data = data,
 		.workqueue = nfsiod_workqueue,
-		.flags = flags,
+		.flags = RPC_TASK_ASYNC,
 		.priority = priority,
 	};
+	int ret = 0;
 
 	/* Set up the RPC argument and reply structs
 	 * NB: take care not to mess about with data->commit et al. */
@@ -837,10 +837,18 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
 		(unsigned long long)data->args.offset);
 
 	task = rpc_run_task(&task_setup_data);
-	if (IS_ERR(task))
-		return PTR_ERR(task);
+	if (IS_ERR(task)) {
+		ret = PTR_ERR(task);
+		goto out;
+	}
+	if (how & FLUSH_SYNC) {
+		ret = rpc_wait_for_completion_task(task);
+		if (ret == 0)
+			ret = task->tk_status;
+	}
 	rpc_put_task(task);
-	return 0;
+out:
+	return ret;
 }
 
 /* If a nfs_flush_* function fails, it should remove reqs from @head and
@@ -1210,7 +1218,6 @@ static int nfs_commit_rpcsetup(struct list_head *head,
 {
 	struct nfs_page *first = nfs_list_entry(head->next);
 	struct inode *inode = first->wb_context->path.dentry->d_inode;
-	int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
 	int priority = flush_task_priority(how);
 	struct rpc_task *task;
 	struct rpc_message msg = {
@@ -1225,7 +1232,7 @@ static int nfs_commit_rpcsetup(struct list_head *head,
 		.callback_ops = &nfs_commit_ops,
 		.callback_data = data,
 		.workqueue = nfsiod_workqueue,
-		.flags = flags,
+		.flags = RPC_TASK_ASYNC,
 		.priority = priority,
 	};
 
@@ -1255,6 +1262,8 @@ static int nfs_commit_rpcsetup(struct list_head *head,
 	task = rpc_run_task(&task_setup_data);
 	if (IS_ERR(task))
 		return PTR_ERR(task);
+	if (how & FLUSH_SYNC)
+		rpc_wait_for_completion_task(task);
 	rpc_put_task(task);
 	return 0;
 }

From bfac4d6725baacbfc085c38e231b8582a1b8f62b Mon Sep 17 00:00:00 2001
From: Zhao Yakui <yakui.zhao@intel.com>
Date: Wed, 7 Apr 2010 17:11:22 +0800
Subject: [PATCH 095/464] drm/i915: Ignore LVDS EDID when it is unavailabe or
 invalid

This trys to shut up complains about invalid LVDS EDID during
mode probe, but uses fixed panel mode directly for panels with
broken EDID.

https://bugs.freedesktop.org/show_bug.cgi?id=23099
https://bugs.freedesktop.org/show_bug.cgi?id=26395

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_drv.h   |  2 ++
 drivers/gpu/drm/i915/intel_lvds.c | 13 +++++++++----
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b7cb4aadd0599..6960849522f8b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -611,6 +611,8 @@ typedef struct drm_i915_private {
 	/* Reclocking support */
 	bool render_reclock_avail;
 	bool lvds_downclock_avail;
+	/* indicate whether the LVDS EDID is OK */
+	bool lvds_edid_good;
 	/* indicates the reduced downclock for LVDS*/
 	int lvds_downclock;
 	struct work_struct idle_work;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 8238b408644e2..527cfa2626bff 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -638,10 +638,12 @@ static int intel_lvds_get_modes(struct drm_connector *connector)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret = 0;
 
-	ret = intel_ddc_get_modes(intel_encoder);
+	if (dev_priv->lvds_edid_good) {
+		ret = intel_ddc_get_modes(intel_encoder);
 
-	if (ret)
-		return ret;
+		if (ret)
+			return ret;
+	}
 
 	/* Didn't get an EDID, so
 	 * Set wide sync ranges so we get all modes
@@ -1062,7 +1064,10 @@ void intel_lvds_init(struct drm_device *dev)
 	 * Attempt to get the fixed panel mode from DDC.  Assume that the
 	 * preferred mode is the right one.
 	 */
-	intel_ddc_get_modes(intel_encoder);
+	dev_priv->lvds_edid_good = true;
+
+	if (!intel_ddc_get_modes(intel_encoder))
+		dev_priv->lvds_edid_good = false;
 
 	list_for_each_entry(scan, &connector->probed_modes, head) {
 		mutex_lock(&dev->mode_config.mutex);

From 4ba1d9c0c22947a9207029e7184733252e6135f1 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Wed, 31 Mar 2010 16:26:39 +0200
Subject: [PATCH 096/464] firewire: cdev: disallow receive packets without
 header

In receive contexts, reject packets with header_length==0.  This would
be an instruction to queue zero packets which would not make sense.

This prevents a division by zero in the OHCI driver.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/core-cdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 8be720b278b7a..bbb8160e2c999 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -968,7 +968,8 @@ static int ioctl_queue_iso(struct client *client, union ioctl_arg *arg)
 			if (ctx->header_size == 0) {
 				if (u.packet.header_length > 0)
 					return -EINVAL;
-			} else if (u.packet.header_length % ctx->header_size != 0) {
+			} else if (u.packet.header_length == 0 ||
+				   u.packet.header_length % ctx->header_size != 0) {
 				return -EINVAL;
 			}
 			header_length = 0;

From 385ab5bcd4be586dffdba550b310308d89eade71 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Wed, 31 Mar 2010 16:26:46 +0200
Subject: [PATCH 097/464] firewire: cdev: require quadlet-aligned headers for
 transmit packets

The definition of struct fw_cdev_iso_packet seems to imply that the
header_length must be quadlet-aligned, and in fact, specifying an
unaligned header has never really worked when using multiple packet
structures, because the position of the next control word is computed by
rounding the header_length _down_, so the last one to three bytes of the
header would overlap the next control word.

To avoid this problem, check that the header length is properly aligned.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/core-cdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index bbb8160e2c999..5eba9e0f876c1 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -959,6 +959,8 @@ static int ioctl_queue_iso(struct client *client, union ioctl_arg *arg)
 		u.packet.header_length = GET_HEADER_LENGTH(control);
 
 		if (ctx->type == FW_ISO_CONTEXT_TRANSMIT) {
+			if (u.packet.header_length % 4 != 0)
+				return -EINVAL;
 			header_length = u.packet.header_length;
 		} else {
 			/*

From 9cac00b8f0079d5d3d54ec4dae453d58dec30e7c Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Wed, 7 Apr 2010 08:30:50 +0200
Subject: [PATCH 098/464] firewire: cdev: fix information leak

A userspace client got to see uninitialized stack-allocated memory if it
specified an _IOC_READ type of ioctl and an argument size larger than
expected by firewire-core's ioctl handlers (but not larger than the
core's union ioctl_arg).

Fix this by clearing the requested buffer size to zero, but only at _IOR
ioctls.  This way, there is almost no runtime penalty to legitimate
ioctls.  The only legitimate _IOR is FW_CDEV_IOC_GET_CYCLE_TIMER with 12
or 16 bytes to memset.

[Another way to fix this would be strict checking of argument size (and
possibly direction) vs. command number.  However, we then need a lookup
table, and we need to allow for slight size deviations in case of 32bit
userland on 64bit kernel.]

Reported-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/core-cdev.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 5eba9e0f876c1..0d3df0927efc4 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -1356,24 +1356,24 @@ static int dispatch_ioctl(struct client *client,
 		return -ENODEV;
 
 	if (_IOC_TYPE(cmd) != '#' ||
-	    _IOC_NR(cmd) >= ARRAY_SIZE(ioctl_handlers))
+	    _IOC_NR(cmd) >= ARRAY_SIZE(ioctl_handlers) ||
+	    _IOC_SIZE(cmd) > sizeof(buffer))
 		return -EINVAL;
 
-	if (_IOC_DIR(cmd) & _IOC_WRITE) {
-		if (_IOC_SIZE(cmd) > sizeof(buffer) ||
-		    copy_from_user(&buffer, arg, _IOC_SIZE(cmd)))
+	if (_IOC_DIR(cmd) == _IOC_READ)
+		memset(&buffer, 0, _IOC_SIZE(cmd));
+
+	if (_IOC_DIR(cmd) & _IOC_WRITE)
+		if (copy_from_user(&buffer, arg, _IOC_SIZE(cmd)))
 			return -EFAULT;
-	}
 
 	ret = ioctl_handlers[_IOC_NR(cmd)](client, &buffer);
 	if (ret < 0)
 		return ret;
 
-	if (_IOC_DIR(cmd) & _IOC_READ) {
-		if (_IOC_SIZE(cmd) > sizeof(buffer) ||
-		    copy_to_user(arg, &buffer, _IOC_SIZE(cmd)))
+	if (_IOC_DIR(cmd) & _IOC_READ)
+		if (copy_to_user(arg, &buffer, _IOC_SIZE(cmd)))
 			return -EFAULT;
-	}
 
 	return ret;
 }

From aa6fec3cdeb14ecc916eb78c4cd9ed79e4f7fe8d Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Wed, 31 Mar 2010 16:26:52 +0200
Subject: [PATCH 099/464] firewire: cdev: iso packet documentation

Add the missing documentation for iso packets.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 include/linux/firewire-cdev.h | 39 +++++++++++++++++++++++++++++------
 1 file changed, 33 insertions(+), 6 deletions(-)

diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 40b11013408ee..011fdf1eaec5e 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -438,7 +438,7 @@ struct fw_cdev_remove_descriptor {
  * @type:	%FW_CDEV_ISO_CONTEXT_TRANSMIT or %FW_CDEV_ISO_CONTEXT_RECEIVE
  * @header_size: Header size to strip for receive contexts
  * @channel:	Channel to bind to
- * @speed:	Speed to transmit at
+ * @speed:	Speed for transmit contexts
  * @closure:	To be returned in &fw_cdev_event_iso_interrupt
  * @handle:	Handle to context, written back by kernel
  *
@@ -451,6 +451,9 @@ struct fw_cdev_remove_descriptor {
  * If a context was successfully created, the kernel writes back a handle to the
  * context, which must be passed in for subsequent operations on that context.
  *
+ * For receive contexts, @header_size must be at least 4 and must be a multiple
+ * of 4.
+ *
  * Note that the effect of a @header_size > 4 depends on
  * &fw_cdev_get_info.version, as documented at &fw_cdev_event_iso_interrupt.
  */
@@ -481,10 +484,34 @@ struct fw_cdev_create_iso_context {
  *
  * &struct fw_cdev_iso_packet is used to describe isochronous packet queues.
  *
- * Use the FW_CDEV_ISO_ macros to fill in @control.  The sy and tag fields are
- * specified by IEEE 1394a and IEC 61883.
- *
- * FIXME - finish this documentation
+ * Use the FW_CDEV_ISO_ macros to fill in @control.
+ *
+ * For transmit packets, the header length must be a multiple of 4 and specifies
+ * the numbers of bytes in @header that will be prepended to the packet's
+ * payload; these bytes are copied into the kernel and will not be accessed
+ * after the ioctl has returned.  The sy and tag fields are copied to the iso
+ * packet header (these fields are specified by IEEE 1394a and IEC 61883-1).
+ * The skip flag specifies that no packet is to be sent in a frame; when using
+ * this, all other fields except the interrupt flag must be zero.
+ *
+ * For receive packets, the header length must be a multiple of the context's
+ * header size; if the header length is larger than the context's header size,
+ * multiple packets are queued for this entry.  The sy and tag fields are
+ * ignored.  If the sync flag is set, the context drops all packets until
+ * a packet with a matching sy field is received (the sync value to wait for is
+ * specified in the &fw_cdev_start_iso structure).  The payload length defines
+ * how many payload bytes can be received for one packet (in addition to payload
+ * quadlets that have been defined as headers and are stripped and returned in
+ * the &fw_cdev_event_iso_interrupt structure).  If more bytes are received, the
+ * additional bytes are dropped.  If less bytes are received, the remaining
+ * bytes in this part of the payload buffer will not be written to, not even by
+ * the next packet, i.e., packets received in consecutive frames will not
+ * necessarily be consecutive in memory.  If an entry has queued multiple
+ * packets, the payload length is divided equally among them.
+ *
+ * When a packet with the interrupt flag set has been completed, the
+ * &fw_cdev_event_iso_interrupt event will be sent.  An entry that has queued
+ * multiple receive packets is completed when its last packet is completed.
  */
 struct fw_cdev_iso_packet {
 	__u32 control;
@@ -501,7 +528,7 @@ struct fw_cdev_iso_packet {
  * Queue a number of isochronous packets for reception or transmission.
  * This ioctl takes a pointer to an array of &fw_cdev_iso_packet structs,
  * which describe how to transmit from or receive into a contiguous region
- * of a mmap()'ed payload buffer.  As part of the packet descriptors,
+ * of a mmap()'ed payload buffer.  As part of transmit packet descriptors,
  * a series of headers can be supplied, which will be prepended to the
  * payload during DMA.
  *

From ca658b1e29d6be939207532e337fb640eb697f71 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat, 10 Apr 2010 12:23:09 +0200
Subject: [PATCH 100/464] firewire: cdev: comment fixlet

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 include/linux/firewire-cdev.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 011fdf1eaec5e..6ffb24a1f2f2a 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -647,8 +647,8 @@ struct fw_cdev_get_cycle_timer2 {
  * instead of allocated.
  * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event concludes this operation.
  *
- * To summarize, %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE allocates iso resources
- * for the lifetime of the fd or handle.
+ * To summarize, %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE allocates iso resources
+ * for the lifetime of the fd or @handle.
  * In contrast, %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE allocates iso resources
  * for the duration of a bus generation.
  *

From 29aac005ff4dc8a5f50b80f4e5c4f59b21c0fb50 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Sat, 10 Apr 2010 21:27:23 +0200
Subject: [PATCH 101/464] ALSA: usb - Fix Oops after usb-midi disconnection

usb-midi causes sometimes Oops at snd_usbmidi_output_drain() after
disconnection.  This is due to the access to the endpoints which have
been already released at disconnection while the files are still alive.

This patch fixes the problem by checking disconnection state at
snd_usbmidi_output_drain() and by releasing urbs but keeping the
endpoint instances until really all freed.

Tested-by: Tvrtko Ursulin <tvrtko@ursulin.net>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/usbmidi.c | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c
index 2c59afd99611b..9e28b20cb2ce3 100644
--- a/sound/usb/usbmidi.c
+++ b/sound/usb/usbmidi.c
@@ -986,6 +986,8 @@ static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream)
 	DEFINE_WAIT(wait);
 	long timeout = msecs_to_jiffies(50);
 
+	if (ep->umidi->disconnected)
+		return;
 	/*
 	 * The substream buffer is empty, but some data might still be in the
 	 * currently active URBs, so we have to wait for those to complete.
@@ -1123,14 +1125,21 @@ static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi,
  * Frees an output endpoint.
  * May be called when ep hasn't been initialized completely.
  */
-static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint* ep)
+static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep)
 {
 	unsigned int i;
 
 	for (i = 0; i < OUTPUT_URBS; ++i)
-		if (ep->urbs[i].urb)
+		if (ep->urbs[i].urb) {
 			free_urb_and_buffer(ep->umidi, ep->urbs[i].urb,
 					    ep->max_transfer);
+			ep->urbs[i].urb = NULL;
+		}
+}
+
+static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep)
+{
+	snd_usbmidi_out_endpoint_clear(ep);
 	kfree(ep);
 }
 
@@ -1262,15 +1271,18 @@ void snd_usbmidi_disconnect(struct list_head* p)
 				usb_kill_urb(ep->out->urbs[j].urb);
 			if (umidi->usb_protocol_ops->finish_out_endpoint)
 				umidi->usb_protocol_ops->finish_out_endpoint(ep->out);
+			ep->out->active_urbs = 0;
+			if (ep->out->drain_urbs) {
+				ep->out->drain_urbs = 0;
+				wake_up(&ep->out->drain_wait);
+			}
 		}
 		if (ep->in)
 			for (j = 0; j < INPUT_URBS; ++j)
 				usb_kill_urb(ep->in->urbs[j]);
 		/* free endpoints here; later call can result in Oops */
-		if (ep->out) {
-			snd_usbmidi_out_endpoint_delete(ep->out);
-			ep->out = NULL;
-		}
+		if (ep->out)
+			snd_usbmidi_out_endpoint_clear(ep->out);
 		if (ep->in) {
 			snd_usbmidi_in_endpoint_delete(ep->in);
 			ep->in = NULL;

From d88d4050dcaf09e417aaa9a5024dd9449ef71b2e Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Sat, 10 Apr 2010 22:28:56 +0200
Subject: [PATCH 102/464] PM / Hibernate: user.c, fix SNAPSHOT_SET_SWAP_AREA
 handling

When CONFIG_DEBUG_BLOCK_EXT_DEVT is set we decode the device
improperly by old_decode_dev and it results in an error while
hibernating with s2disk.

All users already pass the new device number, so switch to
new_decode_dev().

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-and-tested-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl>
---
 kernel/power/user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/user.c b/kernel/power/user.c
index 4d2289626a84e..a8c96212bc1b4 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -420,7 +420,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
 			 * User space encodes device types as two-byte values,
 			 * so we need to recode them
 			 */
-			swdev = old_decode_dev(swap_area.dev);
+			swdev = new_decode_dev(swap_area.dev);
 			if (swdev) {
 				offset = swap_area.offset;
 				data->swap = swap_type_of(swdev, offset, NULL);

From ae4e8d63b5619d4d95f1d2bfa2b836caa6e62d06 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sun, 11 Apr 2010 02:40:49 -0700
Subject: [PATCH 103/464] Revert "tcp: Set CHECKSUM_UNNECESSARY in
 tcp_init_nondata_skb"

This reverts commit 2626419ad5be1a054d350786b684b41d23de1538.

It causes regressions for people with IGB cards.  Connection
requests don't complete etc.  The true cause of the issue is
still not known, but we should sort this out in net-next-2.6
not net-2.6

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_output.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 00afbb0c7e5fa..f181b78f2385b 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -349,7 +349,6 @@ static inline void TCP_ECN_send(struct sock *sk, struct sk_buff *skb,
  */
 static void tcp_init_nondata_skb(struct sk_buff *skb, u32 seq, u8 flags)
 {
-	skb->ip_summed = CHECKSUM_PARTIAL;
 	skb->csum = 0;
 
 	TCP_SKB_CB(skb)->flags = flags;

From d3e03f4ea81456d52810a03a17dd88f78a080818 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Wed, 7 Apr 2010 14:12:56 +0200
Subject: [PATCH 104/464] pcmcia: use previously assigned IRQ for all card
 functions

Use a previously assigned IRQ for all card functions, not only if
CONFIG_PCMCIA_PROBE is set.

Reported-by: Alexander Kurz <linux@kbdbabel.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/pcmcia_resource.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index caec1dee2a4bc..7c3d03bb4f304 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -755,12 +755,12 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 	else
 		printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n");
 
-#ifdef CONFIG_PCMCIA_PROBE
-
-	if (s->irq.AssignedIRQ != 0) {
-		/* If the interrupt is already assigned, it must be the same */
+	/* If the interrupt is already assigned, it must be the same */
+	if (s->irq.AssignedIRQ != 0)
 		irq = s->irq.AssignedIRQ;
-	} else {
+
+#ifdef CONFIG_PCMCIA_PROBE
+	if (!irq) {
 		int try;
 		u32 mask = s->irq_mask;
 		void *data = p_dev; /* something unique to this device */

From 509b0865fbd8ab6c820397706dde980c1c285538 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Thu, 8 Apr 2010 19:23:07 +0200
Subject: [PATCH 105/464] pcmcia: fix io_probe due to parent (PCI) resources

Similar to commit 7a96e87d, we need to be aware of any parent PCI
device when requesting IO regions, even only for testing
("probing").

Reported-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/rsrc_nonstatic.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 559069a80a3bb..1178a823fbc64 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -214,7 +214,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
 		return;
 	}
 	for (i = base, most = 0; i < base+num; i += 8) {
-		res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
+		res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
 		if (!res)
 			continue;
 		hole = inb(i);
@@ -231,9 +231,14 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
 
 	bad = any = 0;
 	for (i = base; i < base+num; i += 8) {
-		res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
-		if (!res)
+		res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
+		if (!res) {
+			if (!any)
+				printk(" excluding");
+			if (!bad)
+				bad = any = i;
 			continue;
+		}
 		for (j = 0; j < 8; j++)
 			if (inb(i+j) != most)
 				break;
@@ -253,6 +258,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
 	}
 	if (bad) {
 		if ((num > 16) && (bad == base) && (i == base+num)) {
+			sub_interval(&s_data->io_db, bad, i-bad);
 			printk(" nothing: probe failed.\n");
 			return;
 		} else {

From b1095afe6fd6ea4c0d9e75489b955f898d6617d9 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Thu, 8 Apr 2010 20:10:21 +0200
Subject: [PATCH 106/464] pcmcia: re-start on MFC override

If there are changes to the number of socket devices, we need to
start over in all cases: else pcmcia_request_configuration() might
get confused.

Reported-by: Alexander Kurz <linux@kbdbabel.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/ds.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index cb6036d89e598..4014cf8e4a26d 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -687,12 +687,10 @@ static void pcmcia_requery(struct pcmcia_socket *s)
 			new_funcs = mfc.nfn;
 		else
 			new_funcs = 1;
-		if (old_funcs > new_funcs) {
+		if (old_funcs != new_funcs) {
+			/* we need to re-start */
 			pcmcia_card_remove(s, NULL);
 			pcmcia_card_add(s);
-		} else if (new_funcs > old_funcs) {
-			s->functions = new_funcs;
-			pcmcia_device_add(s, 1);
 		}
 	}
 
@@ -728,6 +726,8 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
 	struct pcmcia_socket *s = dev->socket;
 	const struct firmware *fw;
 	int ret = -ENOMEM;
+	cistpl_longlink_mfc_t mfc;
+	int old_funcs, new_funcs = 1;
 
 	if (!filename)
 		return -EINVAL;
@@ -750,6 +750,14 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
 			goto release;
 		}
 
+		/* we need to re-start if the number of functions changed */
+		old_funcs = s->functions;
+		if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC,
+					&mfc))
+			new_funcs = mfc.nfn;
+
+		if (old_funcs != new_funcs)
+			ret = -EBUSY;
 
 		/* update information */
 		pcmcia_device_query(dev);
@@ -858,10 +866,8 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
 	if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
 		dev_dbg(&dev->dev, "device needs a fake CIS\n");
 		if (!dev->socket->fake_cis)
-			pcmcia_load_firmware(dev, did->cisfile);
-
-		if (!dev->socket->fake_cis)
-			return 0;
+			if (pcmcia_load_firmware(dev, did->cisfile))
+				return 0;
 	}
 
 	if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {

From d7d05548a62c87ee55b0c81933669177f885aa8d Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Wed, 31 Mar 2010 14:41:35 -0500
Subject: [PATCH 107/464] [SCSI] iscsi_tcp: fix relogin/shutdown hang

When I made this patch:
b64e77f70b8c11766e967e3485331a9e6ef01390
it was to solve a problem where we were already on the waitqueue
becuase a connection problem/logout caused us to be on there
when we were cleaning up the session. If we happen to get
on queue for more normal reasons like their just does not happen
to be any send space at the same time we are closing the connection
we hit a race and get stuck in the wait.

We should not check if the waitqueue is active
because we could race with the network code. If
the network xmit code is just about to enter the
prepare to wait when we check for the waitqueue to
be active then we will miss each other and the
network code will fall into the wait and we will
not run wake_up.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/iscsi_tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 0ee725ced5110..02143af7c1af6 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -599,7 +599,7 @@ static void iscsi_sw_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
 	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
 	write_unlock_bh(&tcp_sw_conn->sock->sk->sk_callback_lock);
 
-	if (sock->sk->sk_sleep && waitqueue_active(sock->sk->sk_sleep)) {
+	if (sock->sk->sk_sleep) {
 		sock->sk->sk_err = EIO;
 		wake_up_interruptible(sock->sk->sk_sleep);
 	}

From 07bbd0facdcda64f2c77fc6a505afd32e45fa506 Mon Sep 17 00:00:00 2001
From: Christof Schmitt <christof.schmitt@de.ibm.com>
Date: Thu, 1 Apr 2010 13:04:07 +0200
Subject: [PATCH 108/464] [SCSI] zfcp: Update MAINTAINERS entry

Martin no longer works on zfcp, remove his entry from the MAINTAINERS
file and add Swen as co-maintainer.

Also remove the reference to the zfcpdump.txt file, zfcpdump is not
part of the zfcp device driver.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 MAINTAINERS | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 7a9ccda2a3070..e14966540e558 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4781,12 +4781,11 @@ F:	drivers/s390/crypto/
 
 S390 ZFCP DRIVER
 M:	Christof Schmitt <christof.schmitt@de.ibm.com>
-M:	Martin Peschke <mp3@de.ibm.com>
+M:	Swen Schillig <swen@vnet.ibm.com>
 M:	linux390@de.ibm.com
 L:	linux-s390@vger.kernel.org
 W:	http://www.ibm.com/developerworks/linux/linux390/
 S:	Supported
-F:	Documentation/s390/zfcpdump.txt
 F:	drivers/s390/scsi/zfcp_*
 
 S390 IUCV NETWORK LAYER

From 5bbf297cc652713a0a6511004b8d4c1cc21a3b02 Mon Sep 17 00:00:00 2001
From: Christof Schmitt <christof.schmitt@de.ibm.com>
Date: Thu, 1 Apr 2010 13:04:08 +0200
Subject: [PATCH 109/464] [SCSI] zfcp: Fix tracing of requests with error
 status

When a FSF request is returned with an error it should be reported
through blktrace for the ziomon tools, but the latency information
should not be read. Fix this by also calling zfcp_fsf_req_trace for
the error case, but skip reading the latencies inside the function.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/s390/scsi/zfcp_fsf.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 18564891ea617..b3b1d2f793986 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -2105,7 +2105,8 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
 	blktrc.inb_usage = req->qdio_req.qdio_inb_usage;
 	blktrc.outb_usage = req->qdio_req.qdio_outb_usage;
 
-	if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) {
+	if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA &&
+	    !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
 		blktrc.flags |= ZFCP_BLK_LAT_VALID;
 		blktrc.channel_lat = lat_in->channel_lat * ticks;
 		blktrc.fabric_lat = lat_in->fabric_lat * ticks;
@@ -2157,9 +2158,8 @@ static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
 	fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
 	zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt);
 
-	zfcp_fsf_req_trace(req, scpnt);
-
 skip_fsfstatus:
+	zfcp_fsf_req_trace(req, scpnt);
 	zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req);
 
 	scpnt->host_scribble = NULL;

From a8f23b03535359c5afeb77d937b89b8a4d87b2b2 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Thu, 1 Apr 2010 18:55:16 +0300
Subject: [PATCH 110/464] [SCSI] wd7000: fix reset handler typo
 spin_unlock_irq() => spin_lock_irq()

This was introduced back in 2005 at the very start of the git era by:
	df0ae2497ddefd72a87f3a3b34ff32455d7d4ae0
	[SCSI] allow sleeping in ->eh_host_reset_handler()

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/wd7000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c
index d0b7d2ff9ac54..333580bf37c5a 100644
--- a/drivers/scsi/wd7000.c
+++ b/drivers/scsi/wd7000.c
@@ -1587,7 +1587,7 @@ static int wd7000_host_reset(struct scsi_cmnd *SCpnt)
 {
 	Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
 
-	spin_unlock_irq(SCpnt->device->host->host_lock);
+	spin_lock_irq(SCpnt->device->host->host_lock);
 
 	if (wd7000_adapter_reset(host) < 0) {
 		spin_unlock_irq(SCpnt->device->host->host_lock);

From a71fa1fc43a29133f13ae6ada1a389ca298c0934 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Fri, 2 Apr 2010 15:50:24 +0900
Subject: [PATCH 111/464] [SCSI] ibmvscsi: fix DMA API misuse

ibmvscsi uses dma_unmap_single() for buffers mapped via
dma_map_sg(). It works however it's the API violation. The DMA debug
facility complains about it:

http://marc.info/?l=linux-scsi&m=127018555013151&w=2

Reported-by: Sachin Sant <sachinp@in.ibm.com>
Tested-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/ibmvscsi/ibmvscsi.c | 29 ++---------------------------
 1 file changed, 2 insertions(+), 27 deletions(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index ff5ec5ac1fb58..88bad0e81bdda 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -323,16 +323,6 @@ static void set_srp_direction(struct scsi_cmnd *cmd,
 		srp_cmd->buf_fmt = fmt;
 }
 
-static void unmap_sg_list(int num_entries,
-		struct device *dev,
-		struct srp_direct_buf *md)
-{
-	int i;
-
-	for (i = 0; i < num_entries; ++i)
-		dma_unmap_single(dev, md[i].va, md[i].len, DMA_BIDIRECTIONAL);
-}
-
 /**
  * unmap_cmd_data: - Unmap data pointed in srp_cmd based on the format
  * @cmd:	srp_cmd whose additional_data member will be unmapped
@@ -350,24 +340,9 @@ static void unmap_cmd_data(struct srp_cmd *cmd,
 
 	if (out_fmt == SRP_NO_DATA_DESC && in_fmt == SRP_NO_DATA_DESC)
 		return;
-	else if (out_fmt == SRP_DATA_DESC_DIRECT ||
-		 in_fmt == SRP_DATA_DESC_DIRECT) {
-		struct srp_direct_buf *data =
-			(struct srp_direct_buf *) cmd->add_data;
-		dma_unmap_single(dev, data->va, data->len, DMA_BIDIRECTIONAL);
-	} else {
-		struct srp_indirect_buf *indirect =
-			(struct srp_indirect_buf *) cmd->add_data;
-		int num_mapped = indirect->table_desc.len /
-			sizeof(struct srp_direct_buf);
 
-		if (num_mapped <= MAX_INDIRECT_BUFS) {
-			unmap_sg_list(num_mapped, dev, &indirect->desc_list[0]);
-			return;
-		}
-
-		unmap_sg_list(num_mapped, dev, evt_struct->ext_list);
-	}
+	if (evt_struct->cmnd)
+		scsi_dma_unmap(evt_struct->cmnd);
 }
 
 static int map_sg_list(struct scsi_cmnd *cmd, int nseg,

From 490475a9938f3480e1ab3a67063e547cea41c295 Mon Sep 17 00:00:00 2001
From: Anil Veerabhadrappa <anilgv@broadcom.com>
Date: Thu, 8 Apr 2010 15:59:15 -0700
Subject: [PATCH 112/464] [SCSI] bnx2i: Bug fixes related to MTU change issue
 when there are active iscsi sessions

bnx2i driver has to wait and cleanup all iscsi endpoints before
returning from bnx2i_stop(). This is to make sure all chip resources
are freed before chip is reset.

As the requirements for 1G and 10G chipsets is different, added
per-device 'hba_shutdown_tmo' parameter to adapter structure

If the connections are not torn down by the daemon within this timeout
period, 'cid's will be leaked in 10G device. 1G devices are more
flexible and do not leak any resources because the whole chip ports
gets reset when MTU is changed or ethtool selftest is run

fixed a minor issue in bnx2i_ep_poll() which unnecessarily forced
error return code when driver timed out waiting for TCP connect
request to complete

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/scsi/bnx2i/bnx2i.h       |  2 ++
 drivers/scsi/bnx2i/bnx2i_init.c  | 13 ++++++++++++-
 drivers/scsi/bnx2i/bnx2i_iscsi.c | 13 ++++++++++---
 3 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index 6cf9dc37d78b4..6b624e767d3ba 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -362,6 +362,7 @@ struct bnx2i_hba {
 	u32 num_ccell;
 
 	int ofld_conns_active;
+	wait_queue_head_t eh_wait;
 
 	int max_active_conns;
 	struct iscsi_cid_queue cid_que;
@@ -381,6 +382,7 @@ struct bnx2i_hba {
 	spinlock_t lock;	/* protects hba structure access */
 	struct mutex net_dev_lock;/* sync net device access */
 
+	int hba_shutdown_tmo;
 	/*
 	 * PCI related info.
 	 */
diff --git a/drivers/scsi/bnx2i/bnx2i_init.c b/drivers/scsi/bnx2i/bnx2i_init.c
index 6d8172e781cff..5d9296c599f64 100644
--- a/drivers/scsi/bnx2i/bnx2i_init.c
+++ b/drivers/scsi/bnx2i/bnx2i_init.c
@@ -177,11 +177,22 @@ void bnx2i_stop(void *handle)
 	struct bnx2i_hba *hba = handle;
 
 	/* check if cleanup happened in GOING_DOWN context */
-	clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 	if (!test_and_clear_bit(ADAPTER_STATE_GOING_DOWN,
 				&hba->adapter_state))
 		iscsi_host_for_each_session(hba->shost,
 					    bnx2i_drop_session);
+
+	/* Wait for all endpoints to be torn down, Chip will be reset once
+	 *  control returns to network driver. So it is required to cleanup and
+	 * release all connection resources before returning from this routine.
+	 */
+	wait_event_interruptible_timeout(hba->eh_wait,
+					 (hba->ofld_conns_active == 0),
+					 hba->hba_shutdown_tmo);
+	/* This flag should be cleared last so that ep_disconnect() gracefully
+	 * cleans up connection context
+	 */
+	clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 }
 
 /**
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index f2e9b18fe76c6..fa68ab34b9985 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -820,6 +820,11 @@ struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic)
 
 	spin_lock_init(&hba->lock);
 	mutex_init(&hba->net_dev_lock);
+	init_waitqueue_head(&hba->eh_wait);
+	if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type))
+		hba->hba_shutdown_tmo = 240 * HZ;
+	else	/* 5706/5708/5709 */
+		hba->hba_shutdown_tmo = 30 * HZ;
 
 	if (iscsi_host_add(shost, &hba->pcidev->dev))
 		goto free_dump_mem;
@@ -1658,8 +1663,8 @@ static struct iscsi_endpoint *bnx2i_ep_connect(struct Scsi_Host *shost,
 		 */
 		hba = bnx2i_check_route(dst_addr);
 
-	if (!hba) {
-		rc = -ENOMEM;
+	if (!hba || test_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state)) {
+		rc = -EINVAL;
 		goto check_busy;
 	}
 
@@ -1804,7 +1809,7 @@ static int bnx2i_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
 					       (bnx2i_ep->state ==
 						EP_STATE_CONNECT_COMPL)),
 					      msecs_to_jiffies(timeout_ms));
-	if (!rc || (bnx2i_ep->state == EP_STATE_OFLD_FAILED))
+	if (bnx2i_ep->state == EP_STATE_OFLD_FAILED)
 		rc = -1;
 
 	if (rc > 0)
@@ -1957,6 +1962,8 @@ static void bnx2i_ep_disconnect(struct iscsi_endpoint *ep)
 
 	if (!hba->ofld_conns_active)
 		bnx2i_unreg_dev_all();
+
+	wake_up_interruptible(&hba->eh_wait);
 }
 
 

From ce227c4183a2c18c9e5467b7e92d47140e763ab9 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Fri, 9 Apr 2010 06:27:00 +0000
Subject: [PATCH 113/464] drm/radeon/kms: only change mode when coherent value
 changes.

On X startup we were getting a flicker where there shouldn't have been one.
the X DDX calls the kernel to set the properties to the same values (yes
it could be smarter), however the kernel was doing a pointless modeset then,
making my nice smooth boot ugly.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_connectors.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 3fba50540f72c..3bc20406d45b7 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -287,6 +287,7 @@ int radeon_connector_set_property(struct drm_connector *connector, struct drm_pr
 
 	if (property == rdev->mode_info.coherent_mode_property) {
 		struct radeon_encoder_atom_dig *dig;
+		bool new_coherent_mode;
 
 		/* need to find digital encoder on connector */
 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
@@ -299,8 +300,11 @@ int radeon_connector_set_property(struct drm_connector *connector, struct drm_pr
 			return 0;
 
 		dig = radeon_encoder->enc_priv;
-		dig->coherent_mode = val ? true : false;
-		radeon_property_change_mode(&radeon_encoder->base);
+		new_coherent_mode = val ? true : false;
+		if (dig->coherent_mode != new_coherent_mode) {
+			dig->coherent_mode = new_coherent_mode;
+			radeon_property_change_mode(&radeon_encoder->base);
+		}
 	}
 
 	if (property == rdev->mode_info.tv_std_property) {

From b73c5f8b2f85a7041e045e0009d046780416948d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <maraeo@gmail.com>
Date: Sun, 11 Apr 2010 03:18:52 +0200
Subject: [PATCH 114/464] drm/radeon/kms: fix calculation of mipmapped 3D
 texture sizes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The 3rd dimension should be minified too.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r100.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 3ae51ada1abf1..e40dbdc4ebb3b 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2890,7 +2890,7 @@ static int r100_cs_track_texture_check(struct radeon_device *rdev,
 {
 	struct radeon_bo *robj;
 	unsigned long size;
-	unsigned u, i, w, h;
+	unsigned u, i, w, h, d;
 	int ret;
 
 	for (u = 0; u < track->num_texture; u++) {
@@ -2922,20 +2922,25 @@ static int r100_cs_track_texture_check(struct radeon_device *rdev,
 			h = h / (1 << i);
 			if (track->textures[u].roundup_h)
 				h = roundup_pow_of_two(h);
+			if (track->textures[u].tex_coord_type == 1) {
+				d = (1 << track->textures[u].txdepth) / (1 << i);
+				if (!d)
+					d = 1;
+			} else {
+				d = 1;
+			}
 			if (track->textures[u].compress_format) {
 
-				size += r100_track_compress_size(track->textures[u].compress_format, w, h);
+				size += r100_track_compress_size(track->textures[u].compress_format, w, h) * d;
 				/* compressed textures are block based */
 			} else
-				size += w * h;
+				size += w * h * d;
 		}
 		size *= track->textures[u].cpp;
 
 		switch (track->textures[u].tex_coord_type) {
 		case 0:
-			break;
 		case 1:
-			size *= (1 << track->textures[u].txdepth);
 			break;
 		case 2:
 			if (track->separate_cube) {

From 7fa90e873f520dad5ec58f47340996cda083e875 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 12 Apr 2010 08:49:00 +0200
Subject: [PATCH 115/464] ALSA: hda - Enhance fix-up table for Realtek codecs

A few enhancement / fixes for fix-up table of some Realtek codecs:
 - Apply fix-ups only for the auto model
 - Apply additional verbs after normal init verbs
 - Add a debug print to show the fix-up application

This is basically a preliminary work for the next fix for Sony VAIO.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 35 ++++++++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 7 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8d60b1f25ce19..cff57710d1fb5 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1390,22 +1390,31 @@ struct alc_fixup {
 
 static void alc_pick_fixup(struct hda_codec *codec,
 			   const struct snd_pci_quirk *quirk,
-			   const struct alc_fixup *fix)
+			   const struct alc_fixup *fix,
+			   int pre_init)
 {
 	const struct alc_pincfg *cfg;
 
 	quirk = snd_pci_quirk_lookup(codec->bus->pci, quirk);
 	if (!quirk)
 		return;
-
 	fix += quirk->value;
 	cfg = fix->pins;
-	if (cfg) {
+	if (pre_init && cfg) {
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+		snd_printdd(KERN_INFO "hda_codec: %s: Apply pincfg for %s\n",
+			    codec->chip_name, quirk->name);
+#endif
 		for (; cfg->nid; cfg++)
 			snd_hda_codec_set_pincfg(codec, cfg->nid, cfg->val);
 	}
-	if (fix->verbs)
+	if (!pre_init && fix->verbs) {
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+		snd_printdd(KERN_INFO "hda_codec: %s: Apply fix-verbs for %s\n",
+			    codec->chip_name, quirk->name);
+#endif
 		add_verb(codec->spec, fix->verbs);
+	}
 }
 
 static int alc_read_coef_idx(struct hda_codec *codec,
@@ -10439,7 +10448,8 @@ static int patch_alc882(struct hda_codec *codec)
 		board_config = ALC882_AUTO;
 	}
 
-	alc_pick_fixup(codec, alc882_fixup_tbl, alc882_fixups);
+	if (board_config == ALC882_AUTO)
+		alc_pick_fixup(codec, alc882_fixup_tbl, alc882_fixups, 1);
 
 	if (board_config == ALC882_AUTO) {
 		/* automatic parse from the BIOS config */
@@ -10512,6 +10522,9 @@ static int patch_alc882(struct hda_codec *codec)
 	set_capture_mixer(codec);
 	set_beep_amp(spec, 0x0b, 0x05, HDA_INPUT);
 
+	if (board_config == ALC882_AUTO)
+		alc_pick_fixup(codec, alc882_fixup_tbl, alc882_fixups, 0);
+
 	spec->vmaster_nid = 0x0c;
 
 	codec->patch_ops = alc_patch_ops;
@@ -15417,7 +15430,8 @@ static int patch_alc861(struct hda_codec *codec)
 		board_config = ALC861_AUTO;
 	}
 
-	alc_pick_fixup(codec, alc861_fixup_tbl, alc861_fixups);
+	if (board_config == ALC861_AUTO)
+		alc_pick_fixup(codec, alc861_fixup_tbl, alc861_fixups, 1);
 
 	if (board_config == ALC861_AUTO) {
 		/* automatic parse from the BIOS config */
@@ -15454,6 +15468,9 @@ static int patch_alc861(struct hda_codec *codec)
 
 	spec->vmaster_nid = 0x03;
 
+	if (board_config == ALC861_AUTO)
+		alc_pick_fixup(codec, alc861_fixup_tbl, alc861_fixups, 0);
+
 	codec->patch_ops = alc_patch_ops;
 	if (board_config == ALC861_AUTO) {
 		spec->init_hook = alc861_auto_init;
@@ -16388,7 +16405,8 @@ static int patch_alc861vd(struct hda_codec *codec)
 		board_config = ALC861VD_AUTO;
 	}
 
-	alc_pick_fixup(codec, alc861vd_fixup_tbl, alc861vd_fixups);
+	if (board_config == ALC861VD_AUTO)
+		alc_pick_fixup(codec, alc861vd_fixup_tbl, alc861vd_fixups, 1);
 
 	if (board_config == ALC861VD_AUTO) {
 		/* automatic parse from the BIOS config */
@@ -16436,6 +16454,9 @@ static int patch_alc861vd(struct hda_codec *codec)
 
 	spec->vmaster_nid = 0x02;
 
+	if (board_config == ALC861VD_AUTO)
+		alc_pick_fixup(codec, alc861vd_fixup_tbl, alc861vd_fixups, 0);
+
 	codec->patch_ops = alc_patch_ops;
 
 	if (board_config == ALC861VD_AUTO)

From ff818c24c2af370153646d302d831b69b023816f Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 12 Apr 2010 08:59:25 +0200
Subject: [PATCH 116/464] ALSA: hda - Add fix-up for Sony VAIO with ALC269

Sony VAIO models with ALC269 need to initialize the pin 0x19 to VREF
ground or Hi-Z to make the headphone working.  Other than that, model=auto
works fine, so let's use model=auto with a specific fix-up table.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index cff57710d1fb5..4b35176d34548 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -14077,6 +14077,27 @@ static void alc269_auto_init(struct hda_codec *codec)
 		alc_inithook(codec);
 }
 
+enum {
+	ALC269_FIXUP_SONY_VAIO,
+};
+
+const static struct hda_verb alc269_sony_vaio_fixup_verbs[] = {
+	{0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREFGRD},
+	{}
+};
+
+static const struct alc_fixup alc269_fixups[] = {
+	[ALC269_FIXUP_SONY_VAIO] = {
+		.verbs = alc269_sony_vaio_fixup_verbs
+	},
+};
+
+static struct snd_pci_quirk alc269_fixup_tbl[] = {
+	SND_PCI_QUIRK(0x104d, 0x9071, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
+	{}
+};
+
+
 /*
  * configuration and preset
  */
@@ -14136,7 +14157,7 @@ static struct snd_pci_quirk alc269_cfg_tbl[] = {
 		      ALC269_DMIC),
 	SND_PCI_QUIRK(0x1043, 0x8398, "ASUS P1005HA", ALC269_DMIC),
 	SND_PCI_QUIRK(0x1043, 0x83ce, "ASUS P1005HA", ALC269_DMIC),
-	SND_PCI_QUIRK(0x104d, 0x9071, "SONY XTB", ALC269_DMIC),
+	SND_PCI_QUIRK(0x104d, 0x9071, "Sony VAIO", ALC269_AUTO),
 	SND_PCI_QUIRK(0x10cf, 0x1475, "Lifebook ICH9M-based", ALC269_LIFEBOOK),
 	SND_PCI_QUIRK(0x152d, 0x1778, "Quanta ON1", ALC269_DMIC),
 	SND_PCI_QUIRK(0x1734, 0x115d, "FSC Amilo", ALC269_FUJITSU),
@@ -14290,6 +14311,9 @@ static int patch_alc269(struct hda_codec *codec)
 		board_config = ALC269_AUTO;
 	}
 
+	if (board_config == ALC269_AUTO)
+		alc_pick_fixup(codec, alc269_fixup_tbl, alc269_fixups, 1);
+
 	if (board_config == ALC269_AUTO) {
 		/* automatic parse from the BIOS config */
 		err = alc269_parse_auto_config(codec);
@@ -14342,6 +14366,9 @@ static int patch_alc269(struct hda_codec *codec)
 		set_capture_mixer(codec);
 	set_beep_amp(spec, 0x0b, 0x04, HDA_INPUT);
 
+	if (board_config == ALC269_AUTO)
+		alc_pick_fixup(codec, alc269_fixup_tbl, alc269_fixups, 0);
+
 	spec->vmaster_nid = 0x02;
 
 	codec->patch_ops = alc_patch_ops;

From 0df5dd4aae211edeeeb84f7f84f6d093406d7c22 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Sun, 11 Apr 2010 16:48:44 -0400
Subject: [PATCH 117/464] NFSv4: fix delegated locking

Arnaud Giersch reports that NFSv4 locking is broken when we hold a
delegation since commit 8e469ebd6dc32cbaf620e134d79f740bf0ebab79 (NFSv4:
Don't allow posix locking against servers that don't support it).

According to Arnaud, the lock succeeds the first time he opens the file
(since we cannot do a delegated open) but then fails after we start using
delegated opens.

The following patch fixes it by ensuring that locking behaviour is
governed by a per-filesystem capability flag that is initially set, but
gets cleared if the server ever returns an OPEN without the
NFS4_OPEN_RESULT_LOCKTYPE_POSIX flag being set.

Reported-by: Arnaud Giersch <arnaud.giersch@iut-bm.univ-fcomte.fr>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
---
 fs/nfs/client.c           | 3 ++-
 fs/nfs/nfs4proc.c         | 4 +++-
 include/linux/nfs_fs_sb.h | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 2a3d352c0bffd..a8766c4ef2e09 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1294,7 +1294,8 @@ static int nfs4_init_server(struct nfs_server *server,
 
 	/* Initialise the client representation from the mount data */
 	server->flags = data->flags;
-	server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR;
+	server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR|
+		NFS_CAP_POSIX_LOCK;
 	server->options = data->options;
 
 	/* Get a client record */
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index fe0cd9eb1d4db..638067007c65e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1523,6 +1523,8 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
 		nfs_post_op_update_inode(dir, o_res->dir_attr);
 	} else
 		nfs_refresh_inode(dir, o_res->dir_attr);
+	if ((o_res->rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) == 0)
+		server->caps &= ~NFS_CAP_POSIX_LOCK;
 	if(o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
 		status = _nfs4_proc_open_confirm(data);
 		if (status != 0)
@@ -1664,7 +1666,7 @@ static int _nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, in
 	status = PTR_ERR(state);
 	if (IS_ERR(state))
 		goto err_opendata_put;
-	if ((opendata->o_res.rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) != 0)
+	if (server->caps & NFS_CAP_POSIX_LOCK)
 		set_bit(NFS_STATE_POSIX_LOCKS, &state->flags);
 	nfs4_opendata_put(opendata);
 	nfs4_put_state_owner(sp);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 717a5e54eb1dc..e82957acea561 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -176,6 +176,7 @@ struct nfs_server {
 #define NFS_CAP_ATIME		(1U << 11)
 #define NFS_CAP_CTIME		(1U << 12)
 #define NFS_CAP_MTIME		(1U << 13)
+#define NFS_CAP_POSIX_LOCK	(1U << 14)
 
 
 /* maximum number of slots to use */

From 8124888940be5d9d73a6e04970d73eaec7c582b7 Mon Sep 17 00:00:00 2001
From: Yong Wang <yong.y.wang@linux.intel.com>
Date: Sun, 11 Apr 2010 09:26:33 +0800
Subject: [PATCH 118/464] eeepc-wmi: add an eeepc_wmi context structure

Add an eeepc_wmi context structure to manage all the sub-devices
that will be implemented later on. Put input device into it first.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Corentin Chary <corentincj@iksaif.net>
---
 drivers/platform/x86/eeepc-wmi.c | 69 +++++++++++++++++++++-----------
 1 file changed, 46 insertions(+), 23 deletions(-)

diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index 9f8822658fd7d..daed4a476b391 100644
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -23,6 +23,8 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -58,10 +60,15 @@ static const struct key_entry eeepc_wmi_keymap[] = {
 	{ KE_END, 0},
 };
 
-static struct input_dev *eeepc_wmi_input_dev;
+struct eeepc_wmi {
+	struct input_dev *inputdev;
+};
+
+static struct eeepc_wmi *eeepc;
 
 static void eeepc_wmi_notify(u32 value, void *context)
 {
+	struct eeepc_wmi *eeepc = context;
 	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
 	acpi_status status;
@@ -69,7 +76,7 @@ static void eeepc_wmi_notify(u32 value, void *context)
 
 	status = wmi_get_event_data(value, &response);
 	if (status != AE_OK) {
-		pr_err("EEEPC WMI: bad event status 0x%x\n", status);
+		pr_err("bad event status 0x%x\n", status);
 		return;
 	}
 
@@ -83,64 +90,80 @@ static void eeepc_wmi_notify(u32 value, void *context)
 		else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
 			code = NOTIFY_BRNDOWN_MIN;
 
-		if (!sparse_keymap_report_event(eeepc_wmi_input_dev,
+		if (!sparse_keymap_report_event(eeepc->inputdev,
 						code, 1, true))
-			pr_info("EEEPC WMI: Unknown key %x pressed\n", code);
+			pr_info("Unknown key %x pressed\n", code);
 	}
 
 	kfree(obj);
 }
 
-static int eeepc_wmi_input_setup(void)
+static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc)
 {
 	int err;
 
-	eeepc_wmi_input_dev = input_allocate_device();
-	if (!eeepc_wmi_input_dev)
+	eeepc->inputdev = input_allocate_device();
+	if (!eeepc->inputdev)
 		return -ENOMEM;
 
-	eeepc_wmi_input_dev->name = "Eee PC WMI hotkeys";
-	eeepc_wmi_input_dev->phys = "wmi/input0";
-	eeepc_wmi_input_dev->id.bustype = BUS_HOST;
+	eeepc->inputdev->name = "Eee PC WMI hotkeys";
+	eeepc->inputdev->phys = "wmi/input0";
+	eeepc->inputdev->id.bustype = BUS_HOST;
 
-	err = sparse_keymap_setup(eeepc_wmi_input_dev, eeepc_wmi_keymap, NULL);
+	err = sparse_keymap_setup(eeepc->inputdev, eeepc_wmi_keymap, NULL);
 	if (err)
 		goto err_free_dev;
 
-	err = input_register_device(eeepc_wmi_input_dev);
+	err = input_register_device(eeepc->inputdev);
 	if (err)
 		goto err_free_keymap;
 
 	return 0;
 
 err_free_keymap:
-	sparse_keymap_free(eeepc_wmi_input_dev);
+	sparse_keymap_free(eeepc->inputdev);
 err_free_dev:
-	input_free_device(eeepc_wmi_input_dev);
+	input_free_device(eeepc->inputdev);
 	return err;
 }
 
+static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc)
+{
+	if (eeepc->inputdev) {
+		sparse_keymap_free(eeepc->inputdev);
+		input_unregister_device(eeepc->inputdev);
+	}
+
+	eeepc->inputdev = NULL;
+}
+
 static int __init eeepc_wmi_init(void)
 {
 	int err;
 	acpi_status status;
 
 	if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID)) {
-		pr_warning("EEEPC WMI: No known WMI GUID found\n");
+		pr_warning("No known WMI GUID found\n");
 		return -ENODEV;
 	}
 
-	err = eeepc_wmi_input_setup();
-	if (err)
+	eeepc = kzalloc(sizeof(struct eeepc_wmi), GFP_KERNEL);
+	if (!eeepc)
+		return -ENOMEM;
+
+	err = eeepc_wmi_input_init(eeepc);
+	if (err) {
+		kfree(eeepc);
 		return err;
+	}
 
 	status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
-					eeepc_wmi_notify, NULL);
+					eeepc_wmi_notify, eeepc);
 	if (ACPI_FAILURE(status)) {
-		sparse_keymap_free(eeepc_wmi_input_dev);
-		input_unregister_device(eeepc_wmi_input_dev);
-		pr_err("EEEPC WMI: Unable to register notify handler - %d\n",
+		pr_err("Unable to register notify handler - %d\n",
 			status);
+		eeepc_wmi_input_exit(eeepc);
+		kfree(eeepc);
 		return -ENODEV;
 	}
 
@@ -150,8 +173,8 @@ static int __init eeepc_wmi_init(void)
 static void __exit eeepc_wmi_exit(void)
 {
 	wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
-	sparse_keymap_free(eeepc_wmi_input_dev);
-	input_unregister_device(eeepc_wmi_input_dev);
+	eeepc_wmi_input_exit(eeepc);
+	kfree(eeepc);
 }
 
 module_init(eeepc_wmi_init);

From 45f2c6937ed6066c9a177c4d37f6bd76daa607c0 Mon Sep 17 00:00:00 2001
From: Yong Wang <yong.y.wang@linux.intel.com>
Date: Sun, 11 Apr 2010 09:27:19 +0800
Subject: [PATCH 119/464] eeepc-wmi: use a platform device as parent device of
 all sub-devices

Add a platform device and use it as the parent device of all sub-devices.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Corentin Chary <corentincj@iksaif.net>
---
 drivers/platform/x86/eeepc-wmi.c | 102 ++++++++++++++++++++++++++-----
 1 file changed, 86 insertions(+), 16 deletions(-)

diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index daed4a476b391..0c9596c97a0fd 100644
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -32,9 +32,12 @@
 #include <linux/slab.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
+#include <linux/platform_device.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
+#define	EEEPC_WMI_FILE	"eeepc-wmi"
+
 MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
 MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
 MODULE_LICENSE("GPL");
@@ -64,7 +67,7 @@ struct eeepc_wmi {
 	struct input_dev *inputdev;
 };
 
-static struct eeepc_wmi *eeepc;
+static struct platform_device *platform_device;
 
 static void eeepc_wmi_notify(u32 value, void *context)
 {
@@ -107,8 +110,9 @@ static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc)
 		return -ENOMEM;
 
 	eeepc->inputdev->name = "Eee PC WMI hotkeys";
-	eeepc->inputdev->phys = "wmi/input0";
+	eeepc->inputdev->phys = EEEPC_WMI_FILE "/input0";
 	eeepc->inputdev->id.bustype = BUS_HOST;
+	eeepc->inputdev->dev.parent = &platform_device->dev;
 
 	err = sparse_keymap_setup(eeepc->inputdev, eeepc_wmi_keymap, NULL);
 	if (err)
@@ -137,11 +141,60 @@ static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc)
 	eeepc->inputdev = NULL;
 }
 
-static int __init eeepc_wmi_init(void)
+static int __devinit eeepc_wmi_platform_probe(struct platform_device *device)
 {
+	struct eeepc_wmi *eeepc;
 	int err;
 	acpi_status status;
 
+	eeepc = platform_get_drvdata(device);
+
+	err = eeepc_wmi_input_init(eeepc);
+	if (err)
+		return err;
+
+	status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
+					eeepc_wmi_notify, eeepc);
+	if (ACPI_FAILURE(status)) {
+		pr_err("Unable to register notify handler - %d\n",
+			status);
+		err = -ENODEV;
+		goto error_wmi;
+	}
+
+	return 0;
+
+error_wmi:
+	eeepc_wmi_input_exit(eeepc);
+
+	return err;
+}
+
+static int __devexit eeepc_wmi_platform_remove(struct platform_device *device)
+{
+	struct eeepc_wmi *eeepc;
+
+	eeepc = platform_get_drvdata(device);
+	wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
+	eeepc_wmi_input_exit(eeepc);
+
+	return 0;
+}
+
+static struct platform_driver platform_driver = {
+	.driver = {
+		.name = EEEPC_WMI_FILE,
+		.owner = THIS_MODULE,
+	},
+	.probe = eeepc_wmi_platform_probe,
+	.remove = __devexit_p(eeepc_wmi_platform_remove),
+};
+
+static int __init eeepc_wmi_init(void)
+{
+	struct eeepc_wmi *eeepc;
+	int err;
+
 	if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID)) {
 		pr_warning("No known WMI GUID found\n");
 		return -ENODEV;
@@ -151,29 +204,46 @@ static int __init eeepc_wmi_init(void)
 	if (!eeepc)
 		return -ENOMEM;
 
-	err = eeepc_wmi_input_init(eeepc);
+	platform_device = platform_device_alloc(EEEPC_WMI_FILE, -1);
+	if (!platform_device) {
+		pr_warning("Unable to allocate platform device\n");
+		err = -ENOMEM;
+		goto fail_platform;
+	}
+
+	err = platform_device_add(platform_device);
 	if (err) {
-		kfree(eeepc);
-		return err;
+		pr_warning("Unable to add platform device\n");
+		goto put_dev;
 	}
 
-	status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
-					eeepc_wmi_notify, eeepc);
-	if (ACPI_FAILURE(status)) {
-		pr_err("Unable to register notify handler - %d\n",
-			status);
-		eeepc_wmi_input_exit(eeepc);
-		kfree(eeepc);
-		return -ENODEV;
+	platform_set_drvdata(platform_device, eeepc);
+
+	err = platform_driver_register(&platform_driver);
+	if (err) {
+		pr_warning("Unable to register platform driver\n");
+		goto del_dev;
 	}
 
 	return 0;
+
+del_dev:
+	platform_device_del(platform_device);
+put_dev:
+	platform_device_put(platform_device);
+fail_platform:
+	kfree(eeepc);
+
+	return err;
 }
 
 static void __exit eeepc_wmi_exit(void)
 {
-	wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
-	eeepc_wmi_input_exit(eeepc);
+	struct eeepc_wmi *eeepc;
+
+	eeepc = platform_get_drvdata(platform_device);
+	platform_driver_unregister(&platform_driver);
+	platform_device_unregister(platform_device);
 	kfree(eeepc);
 }
 

From 3d7b165539d4174b0b8396bd52ee37ba21bd0dfb Mon Sep 17 00:00:00 2001
From: Yong Wang <yong.y.wang@linux.intel.com>
Date: Sun, 11 Apr 2010 09:27:54 +0800
Subject: [PATCH 120/464] eeepc-wmi: add backlight support

Add backlight support for WMI based Eee PC laptops.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Corentin Chary <corentincj@iksaif.net>
---
 drivers/platform/x86/eeepc-wmi.c | 232 ++++++++++++++++++++++++++-----
 1 file changed, 197 insertions(+), 35 deletions(-)

diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index 0c9596c97a0fd..b227eb469f49b 100644
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -32,6 +32,8 @@
 #include <linux/slab.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
 #include <linux/platform_device.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
@@ -43,14 +45,21 @@ MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
 MODULE_LICENSE("GPL");
 
 #define EEEPC_WMI_EVENT_GUID	"ABBC0F72-8EA1-11D1-00A0-C90629100000"
+#define EEEPC_WMI_MGMT_GUID	"97845ED0-4E6D-11DE-8A39-0800200C9A66"
 
 MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
+MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID);
 
 #define NOTIFY_BRNUP_MIN	0x11
 #define NOTIFY_BRNUP_MAX	0x1f
 #define NOTIFY_BRNDOWN_MIN	0x20
 #define NOTIFY_BRNDOWN_MAX	0x2e
 
+#define EEEPC_WMI_METHODID_DEVS	0x53564544
+#define EEEPC_WMI_METHODID_DSTS	0x53544344
+
+#define EEEPC_WMI_DEVID_BACKLIGHT	0x00050012
+
 static const struct key_entry eeepc_wmi_keymap[] = {
 	/* Sleep already handled via generic ACPI code */
 	{ KE_KEY, 0x5d, { KEY_WLAN } },
@@ -63,44 +72,18 @@ static const struct key_entry eeepc_wmi_keymap[] = {
 	{ KE_END, 0},
 };
 
+struct bios_args {
+	u32	dev_id;
+	u32	ctrl_param;
+};
+
 struct eeepc_wmi {
 	struct input_dev *inputdev;
+	struct backlight_device *backlight_device;
 };
 
 static struct platform_device *platform_device;
 
-static void eeepc_wmi_notify(u32 value, void *context)
-{
-	struct eeepc_wmi *eeepc = context;
-	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	acpi_status status;
-	int code;
-
-	status = wmi_get_event_data(value, &response);
-	if (status != AE_OK) {
-		pr_err("bad event status 0x%x\n", status);
-		return;
-	}
-
-	obj = (union acpi_object *)response.pointer;
-
-	if (obj && obj->type == ACPI_TYPE_INTEGER) {
-		code = obj->integer.value;
-
-		if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
-			code = NOTIFY_BRNUP_MIN;
-		else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
-			code = NOTIFY_BRNDOWN_MIN;
-
-		if (!sparse_keymap_report_event(eeepc->inputdev,
-						code, 1, true))
-			pr_info("Unknown key %x pressed\n", code);
-	}
-
-	kfree(obj);
-}
-
 static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc)
 {
 	int err;
@@ -141,6 +124,174 @@ static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc)
 	eeepc->inputdev = NULL;
 }
 
+static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *ctrl_param)
+{
+	struct acpi_buffer input = { (acpi_size)sizeof(u32), &dev_id };
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_status status;
+	u32 tmp;
+
+	status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
+			1, EEEPC_WMI_METHODID_DSTS, &input, &output);
+
+	if (ACPI_FAILURE(status))
+		return status;
+
+	obj = (union acpi_object *)output.pointer;
+	if (obj && obj->type == ACPI_TYPE_INTEGER)
+		tmp = (u32)obj->integer.value;
+	else
+		tmp = 0;
+
+	if (ctrl_param)
+		*ctrl_param = tmp;
+
+	kfree(obj);
+
+	return status;
+
+}
+
+static acpi_status eeepc_wmi_set_devstate(u32 dev_id, u32 ctrl_param)
+{
+	struct bios_args args = {
+		.dev_id = dev_id,
+		.ctrl_param = ctrl_param,
+	};
+	struct acpi_buffer input = { (acpi_size)sizeof(args), &args };
+	acpi_status status;
+
+	status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
+			1, EEEPC_WMI_METHODID_DEVS, &input, NULL);
+
+	return status;
+}
+
+static int read_brightness(struct backlight_device *bd)
+{
+	static u32 ctrl_param;
+	acpi_status status;
+
+	status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BACKLIGHT, &ctrl_param);
+
+	if (ACPI_FAILURE(status))
+		return -1;
+	else
+		return ctrl_param & 0xFF;
+}
+
+static int update_bl_status(struct backlight_device *bd)
+{
+
+	static u32 ctrl_param;
+	acpi_status status;
+
+	ctrl_param = bd->props.brightness;
+
+	status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BACKLIGHT, ctrl_param);
+
+	if (ACPI_FAILURE(status))
+		return -1;
+	else
+		return 0;
+}
+
+static const struct backlight_ops eeepc_wmi_bl_ops = {
+	.get_brightness = read_brightness,
+	.update_status = update_bl_status,
+};
+
+static int eeepc_wmi_backlight_notify(struct eeepc_wmi *eeepc, int code)
+{
+	struct backlight_device *bd = eeepc->backlight_device;
+	int old = bd->props.brightness;
+	int new;
+
+	if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
+		new = code - NOTIFY_BRNUP_MIN + 1;
+	else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
+		new = code - NOTIFY_BRNDOWN_MIN;
+
+	bd->props.brightness = new;
+	backlight_update_status(bd);
+	backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
+
+	return old;
+}
+
+static int eeepc_wmi_backlight_init(struct eeepc_wmi *eeepc)
+{
+	struct backlight_device *bd;
+	struct backlight_properties props;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 15;
+	bd = backlight_device_register(EEEPC_WMI_FILE,
+				       &platform_device->dev, eeepc,
+				       &eeepc_wmi_bl_ops, &props);
+	if (IS_ERR(bd)) {
+		pr_err("Could not register backlight device\n");
+		return PTR_ERR(bd);
+	}
+
+	eeepc->backlight_device = bd;
+
+	bd->props.brightness = read_brightness(bd);
+	bd->props.power = FB_BLANK_UNBLANK;
+	backlight_update_status(bd);
+
+	return 0;
+}
+
+static void eeepc_wmi_backlight_exit(struct eeepc_wmi *eeepc)
+{
+	if (eeepc->backlight_device)
+		backlight_device_unregister(eeepc->backlight_device);
+
+	eeepc->backlight_device = NULL;
+}
+
+static void eeepc_wmi_notify(u32 value, void *context)
+{
+	struct eeepc_wmi *eeepc = context;
+	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_status status;
+	int code;
+	int orig_code;
+
+	status = wmi_get_event_data(value, &response);
+	if (status != AE_OK) {
+		pr_err("bad event status 0x%x\n", status);
+		return;
+	}
+
+	obj = (union acpi_object *)response.pointer;
+
+	if (obj && obj->type == ACPI_TYPE_INTEGER) {
+		code = obj->integer.value;
+		orig_code = code;
+
+		if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
+			code = NOTIFY_BRNUP_MIN;
+		else if (code >= NOTIFY_BRNDOWN_MIN &&
+			 code <= NOTIFY_BRNDOWN_MAX)
+			code = NOTIFY_BRNDOWN_MIN;
+
+		if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
+			if (!acpi_video_backlight_support())
+				eeepc_wmi_backlight_notify(eeepc, orig_code);
+		}
+
+		if (!sparse_keymap_report_event(eeepc->inputdev,
+						code, 1, true))
+			pr_info("Unknown key %x pressed\n", code);
+	}
+
+	kfree(obj);
+}
+
 static int __devinit eeepc_wmi_platform_probe(struct platform_device *device)
 {
 	struct eeepc_wmi *eeepc;
@@ -151,7 +302,14 @@ static int __devinit eeepc_wmi_platform_probe(struct platform_device *device)
 
 	err = eeepc_wmi_input_init(eeepc);
 	if (err)
-		return err;
+		goto error_input;
+
+	if (!acpi_video_backlight_support()) {
+		err = eeepc_wmi_backlight_init(eeepc);
+		if (err)
+			goto error_backlight;
+	} else
+		pr_info("Backlight controlled by ACPI video driver\n");
 
 	status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
 					eeepc_wmi_notify, eeepc);
@@ -165,8 +323,10 @@ static int __devinit eeepc_wmi_platform_probe(struct platform_device *device)
 	return 0;
 
 error_wmi:
+	eeepc_wmi_backlight_exit(eeepc);
+error_backlight:
 	eeepc_wmi_input_exit(eeepc);
-
+error_input:
 	return err;
 }
 
@@ -176,6 +336,7 @@ static int __devexit eeepc_wmi_platform_remove(struct platform_device *device)
 
 	eeepc = platform_get_drvdata(device);
 	wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
+	eeepc_wmi_backlight_exit(eeepc);
 	eeepc_wmi_input_exit(eeepc);
 
 	return 0;
@@ -195,7 +356,8 @@ static int __init eeepc_wmi_init(void)
 	struct eeepc_wmi *eeepc;
 	int err;
 
-	if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID)) {
+	if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID) ||
+	    !wmi_has_guid(EEEPC_WMI_MGMT_GUID)) {
 		pr_warning("No known WMI GUID found\n");
 		return -ENODEV;
 	}

From a0624a90a2bea97e0d65187b4b53ad400226c3f1 Mon Sep 17 00:00:00 2001
From: Yong Wang <yong.y.wang@linux.intel.com>
Date: Mon, 5 Apr 2010 21:09:40 +0800
Subject: [PATCH 121/464] dell-wmi: Fix memory leak

The output of wmi_get_event_data shall be freed before return.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Yong Wang <yong.y.wang@linux.intel.com>
---
 drivers/platform/x86/dell-wmi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 6ba6c30e5bb67..66f53c3c35e8b 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -217,6 +217,7 @@ static void dell_wmi_notify(u32 value, void *context)
 		if (dell_new_hk_type && (buffer_entry[1] != 0x10)) {
 			printk(KERN_INFO "dell-wmi: Received unknown WMI event"
 					 " (0x%x)\n", buffer_entry[1]);
+			kfree(obj);
 			return;
 		}
 
@@ -234,7 +235,7 @@ static void dell_wmi_notify(u32 value, void *context)
 			    key->keycode == KEY_BRIGHTNESSDOWN) && acpi_video) {
 			/* Don't report brightness notifications that will also
 			 * come via ACPI */
-			return;
+			;
 		} else {
 			input_report_key(dell_wmi_input_dev, key->keycode, 1);
 			input_sync(dell_wmi_input_dev);

From 668f4a03211ace7aa57dece90bd835b4f9b9dd30 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Tue, 6 Apr 2010 13:44:29 +0300
Subject: [PATCH 122/464] asus: don't modify bluetooth/wlan on boot

We were storing -1 as an unsigned int and as a result the effect of
passing -1 was the same as using 1.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Corentin Chary <corentincj@iksaif.net>
---
 drivers/platform/x86/asus-laptop.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 52262b012abb2..efe8f63889065 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -79,15 +79,15 @@ static uint wapf = 1;
 module_param(wapf, uint, 0644);
 MODULE_PARM_DESC(wapf, "WAPF value");
 
-static uint wlan_status = 1;
-static uint bluetooth_status = 1;
+static int wlan_status = 1;
+static int bluetooth_status = 1;
 
-module_param(wlan_status, uint, 0644);
+module_param(wlan_status, int, 0644);
 MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot "
 		 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
 		 "default is 1");
 
-module_param(bluetooth_status, uint, 0644);
+module_param(bluetooth_status, int, 0644);
 MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot "
 		 "(0 = disabled, 1 = enabled, -1 = don't do anything). "
 		 "default is 1");

From fb48aef7c3e53231cddccc1e43721543bc033ae9 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 7 Apr 2010 16:22:45 +0200
Subject: [PATCH 123/464] eeepc-wmi: Build fix

-tip testing found:

eeepc-wmi.c:(.text+0x36673c): undefined reference to `sparse_keymap_report_event'
drivers/built-in.o: In function `eeepc_wmi_init':
eeepc-wmi.c:(.init.text+0x19cd0): undefined reference to `sparse_keymap_setup'
eeepc-wmi.c:(.init.text+0x19cf0): undefined reference to `sparse_keymap_free'
eeepc-wmi.c:(.init.text+0x19d0b): undefined reference to `sparse_keymap_free'
drivers/built-in.o: In function `eeepc_wmi_exit':
eeepc-wmi.c:(.exit.text+0x2e87): undefined reference to `sparse_keymap_free'

To fix this select INPUT_SPARSEKMAP, like the ASUS driver does.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
---
 drivers/platform/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 7bec4588c268c..6c3320d750553 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -390,6 +390,7 @@ config EEEPC_WMI
 	depends on ACPI_WMI
 	depends on INPUT
 	depends on EXPERIMENTAL
+	select INPUT_SPARSEKMAP
 	---help---
 	  Say Y here if you want to support WMI-based hotkeys on Eee PC laptops.
 

From f5b066287c74b624583b993395a65d03a6487b3a Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Mon, 12 Apr 2010 14:24:28 -0700
Subject: [PATCH 124/464] ceph: fix dentry reference leak in dcache readdir

When filldir returned an error (e.g. buffer full for a large directory),
we would leak a dentry reference, causing an oops on umount.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/dir.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index aed8fda330249..7505b4f1f5971 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -170,11 +170,11 @@ static int __dcache_readdir(struct file *filp,
 	spin_lock(&inode->i_lock);
 	spin_lock(&dcache_lock);
 
+	last = dentry;
+
 	if (err < 0)
 		goto out_unlock;
 
-	last = dentry;
-
 	p = p->prev;
 	filp->f_pos++;
 

From 0e413f22e4c1cbfe12907e462a7d739a2e316f2b Mon Sep 17 00:00:00 2001
From: Shirley Ma <mashirle@us.ibm.com>
Date: Mon, 29 Mar 2010 15:19:15 +0000
Subject: [PATCH 125/464] virtio_net: missing sg_init_table
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add missing sg_init_table for sg_set_buf in virtio_net which
induced in defer skb patch.

Reported-by: Thomas Müller <thomas@mathtm.de>
Tested-by: Thomas Müller <thomas@mathtm.de>
Signed-off-by: Shirley Ma <xma@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 6fb783ce20b98..b0577dd1a42dc 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -327,6 +327,7 @@ static int add_recvbuf_small(struct virtnet_info *vi, gfp_t gfp)
 	struct scatterlist sg[2];
 	int err;
 
+	sg_init_table(sg, 2);
 	skb = netdev_alloc_skb_ip_align(vi->dev, MAX_PACKET_LEN);
 	if (unlikely(!skb))
 		return -ENOMEM;
@@ -352,6 +353,7 @@ static int add_recvbuf_big(struct virtnet_info *vi, gfp_t gfp)
 	char *p;
 	int i, err, offset;
 
+	sg_init_table(sg, MAX_SKB_FRAGS + 2);
 	/* page in sg[MAX_SKB_FRAGS + 1] is list tail */
 	for (i = MAX_SKB_FRAGS + 1; i > 1; --i) {
 		first = get_a_page(vi, gfp);

From cb256aa60409efd803806cfb0528a4b3f8397dba Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 12 Apr 2010 22:16:22 -0700
Subject: [PATCH 126/464] sparc64: Use kstack_valid() in die_if_kernel().

This gets rid of a local function (is_kernel_stack()) which tries to
do the same thing, yet poorly in that it doesn't handle IRQ stacks
properly.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/traps_64.c | 26 +++-----------------------
 1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index bdc05a21908b9..2ff178c469e9a 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2202,27 +2202,6 @@ void dump_stack(void)
 
 EXPORT_SYMBOL(dump_stack);
 
-static inline int is_kernel_stack(struct task_struct *task,
-				  struct reg_window *rw)
-{
-	unsigned long rw_addr = (unsigned long) rw;
-	unsigned long thread_base, thread_end;
-
-	if (rw_addr < PAGE_OFFSET) {
-		if (task != &init_task)
-			return 0;
-	}
-
-	thread_base = (unsigned long) task_stack_page(task);
-	thread_end = thread_base + sizeof(union thread_union);
-	if (rw_addr >= thread_base &&
-	    rw_addr < thread_end &&
-	    !(rw_addr & 0x7UL))
-		return 1;
-
-	return 0;
-}
-
 static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
 {
 	unsigned long fp = rw->ins[6];
@@ -2251,6 +2230,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 	show_regs(regs);
 	add_taint(TAINT_DIE);
 	if (regs->tstate & TSTATE_PRIV) {
+		struct thread_info *tp = current_thread_info();
 		struct reg_window *rw = (struct reg_window *)
 			(regs->u_regs[UREG_FP] + STACK_BIAS);
 
@@ -2258,8 +2238,8 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 		 * find some badly aligned kernel stack.
 		 */
 		while (rw &&
-		       count++ < 30&&
-		       is_kernel_stack(current, rw)) {
+		       count++ < 30 &&
+		       kstack_valid(tp, (unsigned long) rw)) {
 			printk("Caller[%016lx]: %pS\n", rw->ins[7],
 			       (void *) rw->ins[7]);
 

From 0c25e9e6cbe7b233bb91d14d0e2c258bf8e6ec83 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 12 Apr 2010 22:21:52 -0700
Subject: [PATCH 127/464] sparc64: Adjust __raw_local_irq_save() to cooperate
 in NMIs.

If we are in an NMI then doing a plain raw_local_irq_disable() will
write PIL_NORMAL_MAX into %pil, which is lower than PIL_NMI, and thus
we'll re-enable NMIs and recurse.

Doing a simple:

	%pil = %pil | PIL_NORMAL_MAX

does what we want, if we're already at PIL_NMI (15) we leave it at
that setting, else we set it to PIL_NORMAL_MAX (14).

This should get the function tracer working on sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/irqflags_64.h | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/sparc/include/asm/irqflags_64.h b/arch/sparc/include/asm/irqflags_64.h
index 8b49bf920df3b..a16e94c4b1494 100644
--- a/arch/sparc/include/asm/irqflags_64.h
+++ b/arch/sparc/include/asm/irqflags_64.h
@@ -76,9 +76,19 @@ static inline int raw_irqs_disabled(void)
  */
 static inline unsigned long __raw_local_irq_save(void)
 {
-	unsigned long flags = __raw_local_save_flags();
+	unsigned long flags, tmp;
 
-	raw_local_irq_disable();
+	/* Disable interrupts to PIL_NORMAL_MAX unless we already
+	 * are using PIL_NMI, in which case PIL_NMI is retained.
+	 */
+	__asm__ __volatile__(
+		"rdpr	%%pil, %0\n\t"
+		"or	%0, %2, %1\n\t"
+		"wrpr	%1, 0x0, %%pil"
+		: "=r" (flags), "=r" (tmp)
+		: "i" (PIL_NORMAL_MAX)
+		: "memory"
+	);
 
 	return flags;
 }

From 63b754957371c23b7515399a977a2e1d361a036c Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 12 Apr 2010 22:35:24 -0700
Subject: [PATCH 128/464] sparc64: Add HAVE_FUNCTION_TRACE_MCOUNT_TEST and tidy
 up.

Check function_trace_stop at ftrace_caller

Toss mcount_call and dummy call of ftrace_stub, unnecessary.

Document problems we'll have if the final kernel image link
ever turns on relaxation.

Properly size 'ftrace_call' so it looks right when inspecting
instructions under gdb et al.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/Kconfig      |  1 +
 arch/sparc/lib/mcount.S | 22 +++++++++++++++-------
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 6db5136740504..035304c30ab43 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -37,6 +37,7 @@ config SPARC64
 	def_bool 64BIT
 	select ARCH_SUPPORTS_MSI
 	select HAVE_FUNCTION_TRACER
+	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
 	select HAVE_KRETPROBES
 	select HAVE_KPROBES
 	select HAVE_LMB
diff --git a/arch/sparc/lib/mcount.S b/arch/sparc/lib/mcount.S
index 24b8b12deed20..7047997be0eb1 100644
--- a/arch/sparc/lib/mcount.S
+++ b/arch/sparc/lib/mcount.S
@@ -96,13 +96,12 @@ mcount:
 #endif
 #ifdef CONFIG_FUNCTION_TRACER
 #ifdef CONFIG_DYNAMIC_FTRACE
-	mov		%o7, %o0
-	.globl		mcount_call
-mcount_call:
-	call		ftrace_stub
-	 mov		%o0, %o7
+	/* Do nothing, the retl/nop below is all we need.  */
 #else
-	sethi		%hi(ftrace_trace_function), %g1
+	sethi		%hi(function_trace_stop), %g1
+	lduw		[%g1 + %lo(function_trace_stop)], %g2
+	brnz,pn		%g2, 1f
+	 sethi		%hi(ftrace_trace_function), %g1
 	sethi		%hi(ftrace_stub), %g2
 	ldx		[%g1 + %lo(ftrace_trace_function)], %g1
 	or		%g2, %lo(ftrace_stub), %g2
@@ -131,14 +130,23 @@ ftrace_stub:
 	.globl		ftrace_caller
 	.type		ftrace_caller,#function
 ftrace_caller:
+	sethi		%hi(function_trace_stop), %g1
 	mov		%i7, %o1
-	mov		%o7, %o0
+	lduw		[%g1 + %lo(function_trace_stop)], %g2
+	brnz,pn		%g2, ftrace_stub
+	 mov		%o7, %o0
 	.globl		ftrace_call
 ftrace_call:
+	/* If the final kernel link ever turns on relaxation, we'll need
+	 * to do something about this tail call.  Otherwise the linker
+	 * will rewrite the call into a branch and nop out the move
+	 * instruction.
+	 */
 	call		ftrace_stub
 	 mov		%o0, %o7
 	retl
 	 nop
+	.size		ftrace_call,.-ftrace_call
 	.size		ftrace_caller,.-ftrace_caller
 #endif
 #endif

From ddacd0bc70fe724eba2b5967dd5b68e10d41486c Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 12 Apr 2010 22:36:03 -0700
Subject: [PATCH 129/464] sparc64: Kill CONFIG_STACK_DEBUG code.

The generic stack tracer does this job just as well.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/Kconfig.debug |  5 +--
 arch/sparc/lib/mcount.S  | 74 ----------------------------------------
 2 files changed, 1 insertion(+), 78 deletions(-)

diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug
index 9d3c889718ac6..1b4a831565f9c 100644
--- a/arch/sparc/Kconfig.debug
+++ b/arch/sparc/Kconfig.debug
@@ -19,13 +19,10 @@ config DEBUG_DCFLUSH
 	bool "D-cache flush debugging"
 	depends on SPARC64 && DEBUG_KERNEL
 
-config STACK_DEBUG
-	bool "Stack Overflow Detection Support"
-
 config MCOUNT
 	bool
 	depends on SPARC64
-	depends on STACK_DEBUG || FUNCTION_TRACER
+	depends on FUNCTION_TRACER
 	default y
 
 config FRAME_POINTER
diff --git a/arch/sparc/lib/mcount.S b/arch/sparc/lib/mcount.S
index 7047997be0eb1..73ed0f3aaa0cc 100644
--- a/arch/sparc/lib/mcount.S
+++ b/arch/sparc/lib/mcount.S
@@ -7,26 +7,11 @@
 
 #include <linux/linkage.h>
 
-#include <asm/ptrace.h>
-#include <asm/thread_info.h>
-
 /*
  * This is the main variant and is called by C code.  GCC's -pg option
  * automatically instruments every C function with a call to this.
  */
 
-#ifdef CONFIG_STACK_DEBUG
-
-#define OVSTACKSIZE	4096		/* lets hope this is enough */
-
-	.data
-	.align		8
-panicstring:
-	.asciz		"Stack overflow\n"
-	.align		8
-ovstack:
-	.skip		OVSTACKSIZE
-#endif
 	.text
 	.align		32
 	.globl		_mcount
@@ -35,65 +20,6 @@ ovstack:
 	.type		mcount,#function
 _mcount:
 mcount:
-#ifdef CONFIG_STACK_DEBUG
-	/*
-	 * Check whether %sp is dangerously low.
-	 */
-	ldub		[%g6 + TI_FPDEPTH], %g1
-	srl		%g1, 1, %g3
-	add		%g3, 1, %g3
-	sllx		%g3, 8, %g3			! each fpregs frame is 256b
-	add		%g3, 192, %g3
-	add		%g6, %g3, %g3			! where does task_struct+frame end?
-	sub		%g3, STACK_BIAS, %g3
-	cmp		%sp, %g3
-	bg,pt		%xcc, 1f
-	 nop
-	lduh		[%g6 + TI_CPU], %g1
-	sethi		%hi(hardirq_stack), %g3
-	or		%g3, %lo(hardirq_stack), %g3
-	sllx		%g1, 3, %g1
-	ldx		[%g3 + %g1], %g7
-	sub		%g7, STACK_BIAS, %g7
-	cmp		%sp, %g7
-	bleu,pt		%xcc, 2f
-	 sethi		%hi(THREAD_SIZE), %g3
-	add		%g7, %g3, %g7
-	cmp		%sp, %g7
-	blu,pn		%xcc, 1f
-2:	 sethi		%hi(softirq_stack), %g3
-	or		%g3, %lo(softirq_stack), %g3
-	ldx		[%g3 + %g1], %g7
-	sub		%g7, STACK_BIAS, %g7
-	cmp		%sp, %g7
-	bleu,pt		%xcc, 3f
-	 sethi		%hi(THREAD_SIZE), %g3
-	add		%g7, %g3, %g7
-	cmp		%sp, %g7
-	blu,pn		%xcc, 1f
-	 nop
-	/* If we are already on ovstack, don't hop onto it
-	 * again, we are already trying to output the stack overflow
-	 * message.
-	 */
-3:	sethi		%hi(ovstack), %g7		! cant move to panic stack fast enough
-	 or		%g7, %lo(ovstack), %g7
-	add		%g7, OVSTACKSIZE, %g3
-	sub		%g3, STACK_BIAS + 192, %g3
-	sub		%g7, STACK_BIAS, %g7
-	cmp		%sp, %g7
-	blu,pn		%xcc, 2f
-	 cmp		%sp, %g3
-	bleu,pn		%xcc, 1f
-	 nop
-2:	mov		%g3, %sp
-	sethi		%hi(panicstring), %g3
-	call		prom_printf
-	 or		%g3, %lo(panicstring), %o0
-	call		prom_halt
-	 nop
-1:
-#endif
 #ifdef CONFIG_FUNCTION_TRACER
 #ifdef CONFIG_DYNAMIC_FTRACE
 	/* Do nothing, the retl/nop below is all we need.  */

From d96478d5a2dcfa3aba1ca4d71b07fef62b27d9c8 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 6 Apr 2010 17:32:08 -0700
Subject: [PATCH 130/464] sparc64: Kill unnecessary static on local var in
 ftrace_call_replace().

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ftrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sparc/kernel/ftrace.c b/arch/sparc/kernel/ftrace.c
index 9103a56b39e83..2ea6e4ff7fd2b 100644
--- a/arch/sparc/kernel/ftrace.c
+++ b/arch/sparc/kernel/ftrace.c
@@ -13,7 +13,7 @@ static const u32 ftrace_nop = 0x01000000;
 
 static u32 ftrace_call_replace(unsigned long ip, unsigned long addr)
 {
-	static u32 call;
+	u32 call;
 	s32 off;
 
 	off = ((s32)addr - (s32)ip);

From f8e8a8e8cba3359df2a16c17d59eedb08adf3b43 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 6 Apr 2010 17:34:15 -0700
Subject: [PATCH 131/464] sparc64: Remove profiling from some low-level bits.

These include the timer implementation, perf events support, and the
performance counter register (pcr) programming layer.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/Makefile | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index c6316142db4e5..1b35ed6be4d9e 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -13,6 +13,14 @@ extra-y     += init_task.o
 CPPFLAGS_vmlinux.lds := -Usparc -m$(BITS)
 extra-y              += vmlinux.lds
 
+ifdef CONFIG_FUNCTION_TRACER
+# Do not profile debug and lowlevel utilities
+CFLAGS_REMOVE_ftrace.o := -pg
+CFLAGS_REMOVE_time_$(BITS).o := -pg
+CFLAGS_REMOVE_perf_event.o := -pg
+CFLAGS_REMOVE_pcr.o := -pg
+endif
+
 obj-$(CONFIG_SPARC32)   += entry.o wof.o wuf.o
 obj-$(CONFIG_SPARC32)   += etrap_32.o
 obj-$(CONFIG_SPARC32)   += rtrap_32.o
@@ -85,7 +93,6 @@ obj-$(CONFIG_KGDB)        += kgdb_$(BITS).o
 
 
 obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
-CFLAGS_REMOVE_ftrace.o := -pg
 
 obj-$(CONFIG_EARLYFB) += btext.o
 obj-$(CONFIG_STACKTRACE)     += stacktrace.o

From daecbf58a509bc27c112647e825df763c3e3b0f4 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 6 Apr 2010 17:38:52 -0700
Subject: [PATCH 132/464] sparc64: Use a seperate counter for timer interrupts
 and NMI checks, like x86.

This keeps us from having to use kstat_irqs_cpu() from the NMI handler,
the former of which is a profiled function.

Instead we use a currently empty slot in the cpu_data

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/cpudata_64.h | 2 +-
 arch/sparc/kernel/nmi.c             | 3 +--
 arch/sparc/kernel/time_64.c         | 1 +
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/sparc/include/asm/cpudata_64.h b/arch/sparc/include/asm/cpudata_64.h
index 926397d345ff8..050ef35b9dcf5 100644
--- a/arch/sparc/include/asm/cpudata_64.h
+++ b/arch/sparc/include/asm/cpudata_64.h
@@ -17,7 +17,7 @@ typedef struct {
 	unsigned int	__nmi_count;
 	unsigned long	clock_tick;	/* %tick's per second */
 	unsigned long	__pad;
-	unsigned int	__pad1;
+	unsigned int	irq0_irqs;
 	unsigned int	__pad2;
 
 	/* Dcache line 2, rarely used */
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index b287b62c7ea38..75a3d1a25356b 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -92,7 +92,6 @@ static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
 notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
 {
 	unsigned int sum, touched = 0;
-	int cpu = smp_processor_id();
 
 	clear_softint(1 << irq);
 
@@ -106,7 +105,7 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
 	else
 		pcr_ops->write(PCR_PIC_PRIV);
 
-	sum = kstat_irqs_cpu(0, cpu);
+	sum = local_cpu_data().irq0_irqs;
 	if (__get_cpu_var(nmi_touch)) {
 		__get_cpu_var(nmi_touch) = 0;
 		touched = 1;
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 67e165102885c..f25858e442ab4 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -728,6 +728,7 @@ void timer_interrupt(int irq, struct pt_regs *regs)
 
 	irq_enter();
 
+	local_cpu_data().irq0_irqs++;
 	kstat_incr_irqs_this_cpu(0, irq_to_desc(0));
 
 	if (unlikely(!evt->event_handler)) {

From a71d1d6bb1b26e566e5c06c37857f4cdc1664780 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 6 Apr 2010 19:59:46 -0700
Subject: [PATCH 133/464] sparc64: Give a stack frame to the ftrace call sites.

It's the only way we'll be able to implement the function
graph tracer properly.

A positive is that we no longer have to worry about the
linker over-optimizing the tail call, since we don't
use a tail call any more.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/lib/mcount.S | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/arch/sparc/lib/mcount.S b/arch/sparc/lib/mcount.S
index 73ed0f3aaa0cc..153c80e62cf19 100644
--- a/arch/sparc/lib/mcount.S
+++ b/arch/sparc/lib/mcount.S
@@ -33,9 +33,13 @@ mcount:
 	or		%g2, %lo(ftrace_stub), %g2
 	cmp		%g1, %g2
 	be,pn		%icc, 1f
-	 mov		%i7, %o1
-	jmpl		%g1, %g0
-	 mov		%o7, %o0
+	 mov		%i7, %g2
+	save		%sp, -128, %sp
+	mov		%g2, %o1
+	jmpl		%g1, %o7
+	 mov		%i7, %o0
+	ret
+	 restore
 	/* not reached */
 1:
 #endif
@@ -57,21 +61,18 @@ ftrace_stub:
 	.type		ftrace_caller,#function
 ftrace_caller:
 	sethi		%hi(function_trace_stop), %g1
-	mov		%i7, %o1
-	lduw		[%g1 + %lo(function_trace_stop)], %g2
-	brnz,pn		%g2, ftrace_stub
-	 mov		%o7, %o0
+	mov		%i7, %g2
+	lduw		[%g1 + %lo(function_trace_stop)], %g3
+	brnz,pn		%g3, ftrace_stub
+	 nop
+	save		%sp, -128, %sp
+	mov		%g2, %o1
 	.globl		ftrace_call
 ftrace_call:
-	/* If the final kernel link ever turns on relaxation, we'll need
-	 * to do something about this tail call.  Otherwise the linker
-	 * will rewrite the call into a branch and nop out the move
-	 * instruction.
-	 */
 	call		ftrace_stub
-	 mov		%o0, %o7
-	retl
-	 nop
+	 mov		%i7, %o0
+	ret
+	 restore
 	.size		ftrace_call,.-ftrace_call
 	.size		ftrace_caller,.-ftrace_caller
 #endif

From 9960e9e8944f9b1ca6af5f7d26400ca45b429600 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 7 Apr 2010 04:41:33 -0700
Subject: [PATCH 134/464] sparc64: Add function graph tracer support.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/Kconfig              |  2 ++
 arch/sparc/kernel/Makefile      |  1 +
 arch/sparc/kernel/ftrace.c      | 58 ++++++++++++++++++++++++++++++
 arch/sparc/kernel/irq_64.c      |  3 +-
 arch/sparc/kernel/kgdb_64.c     |  3 +-
 arch/sparc/kernel/pcr.c         |  3 +-
 arch/sparc/kernel/smp_64.c      | 11 +++---
 arch/sparc/kernel/time_64.c     |  3 +-
 arch/sparc/kernel/vmlinux.lds.S |  1 +
 arch/sparc/lib/mcount.S         | 62 +++++++++++++++++++++++++++++----
 10 files changed, 132 insertions(+), 15 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 035304c30ab43..9908d477ccd9b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -37,6 +37,8 @@ config SPARC64
 	def_bool 64BIT
 	select ARCH_SUPPORTS_MSI
 	select HAVE_FUNCTION_TRACER
+	select HAVE_FUNCTION_GRAPH_TRACER
+	select HAVE_FUNCTION_GRAPH_FP_TEST
 	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
 	select HAVE_KRETPROBES
 	select HAVE_KPROBES
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 1b35ed6be4d9e..0c2dc1f24a9a7 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -93,6 +93,7 @@ obj-$(CONFIG_KGDB)        += kgdb_$(BITS).o
 
 
 obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
 
 obj-$(CONFIG_EARLYFB) += btext.o
 obj-$(CONFIG_STACKTRACE)     += stacktrace.o
diff --git a/arch/sparc/kernel/ftrace.c b/arch/sparc/kernel/ftrace.c
index 2ea6e4ff7fd2b..03ab022e51c5e 100644
--- a/arch/sparc/kernel/ftrace.c
+++ b/arch/sparc/kernel/ftrace.c
@@ -91,3 +91,61 @@ int __init ftrace_dyn_arch_init(void *data)
 	return 0;
 }
 #endif
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+extern void ftrace_graph_call(void);
+
+int ftrace_enable_ftrace_graph_caller(void)
+{
+	unsigned long ip = (unsigned long)(&ftrace_graph_call);
+	u32 old, new;
+
+	old = *(u32 *) &ftrace_graph_call;
+	new = ftrace_call_replace(ip, (unsigned long) &ftrace_graph_caller);
+	return ftrace_modify_code(ip, old, new);
+}
+
+int ftrace_disable_ftrace_graph_caller(void)
+{
+	unsigned long ip = (unsigned long)(&ftrace_graph_call);
+	u32 old, new;
+
+	old = *(u32 *) &ftrace_graph_call;
+	new = ftrace_call_replace(ip, (unsigned long) &ftrace_stub);
+
+	return ftrace_modify_code(ip, old, new);
+}
+
+#endif /* !CONFIG_DYNAMIC_FTRACE */
+
+/*
+ * Hook the return address and push it in the stack of return addrs
+ * in current thread info.
+ */
+unsigned long prepare_ftrace_return(unsigned long parent,
+				    unsigned long self_addr,
+				    unsigned long frame_pointer)
+{
+	unsigned long return_hooker = (unsigned long) &return_to_handler;
+	struct ftrace_graph_ent trace;
+
+	if (unlikely(atomic_read(&current->tracing_graph_pause)))
+		return parent + 8UL;
+
+	if (ftrace_push_return_trace(parent, self_addr, &trace.depth,
+				     frame_pointer) == -EBUSY)
+		return parent + 8UL;
+
+	trace.func = self_addr;
+
+	/* Only trace if the calling function expects to */
+	if (!ftrace_graph_entry(&trace)) {
+		current->curr_ret_stack--;
+		return parent + 8UL;
+	}
+
+	return return_hooker;
+}
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index e1cbdb94d97bc..af5c76c04e997 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/ftrace.h>
 #include <linux/irq.h>
 
 #include <asm/ptrace.h>
@@ -721,7 +722,7 @@ static __attribute__((always_inline)) void restore_hardirq_stack(void *orig_sp)
 	__asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp));
 }
 
-void handler_irq(int irq, struct pt_regs *regs)
+void __irq_entry handler_irq(int irq, struct pt_regs *regs)
 {
 	unsigned long pstate, bucket_pa;
 	struct pt_regs *old_regs;
diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c
index f5a0fd490b59c..0a2bd0f99fc1a 100644
--- a/arch/sparc/kernel/kgdb_64.c
+++ b/arch/sparc/kernel/kgdb_64.c
@@ -5,6 +5,7 @@
 
 #include <linux/kgdb.h>
 #include <linux/kdebug.h>
+#include <linux/ftrace.h>
 
 #include <asm/kdebug.h>
 #include <asm/ptrace.h>
@@ -108,7 +109,7 @@ void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 }
 
 #ifdef CONFIG_SMP
-void smp_kgdb_capture_client(int irq, struct pt_regs *regs)
+void __irq_entry smp_kgdb_capture_client(int irq, struct pt_regs *regs)
 {
 	unsigned long flags;
 
diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c
index 2d94e7a03af52..c4a6a50b4849a 100644
--- a/arch/sparc/kernel/pcr.c
+++ b/arch/sparc/kernel/pcr.c
@@ -8,6 +8,7 @@
 #include <linux/irq.h>
 
 #include <linux/perf_event.h>
+#include <linux/ftrace.h>
 
 #include <asm/pil.h>
 #include <asm/pcr.h>
@@ -34,7 +35,7 @@ unsigned int picl_shift;
  * Therefore in such situations we defer the work by signalling
  * a lower level cpu IRQ.
  */
-void deferred_pcr_work_irq(int irq, struct pt_regs *regs)
+void __irq_entry deferred_pcr_work_irq(int irq, struct pt_regs *regs)
 {
 	struct pt_regs *old_regs;
 
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index eb14844a0021b..1011fbf451bbe 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -22,6 +22,7 @@
 #include <linux/profile.h>
 #include <linux/bootmem.h>
 #include <linux/vmalloc.h>
+#include <linux/ftrace.h>
 #include <linux/cpu.h>
 
 #include <asm/head.h>
@@ -822,13 +823,13 @@ void arch_send_call_function_single_ipi(int cpu)
 		      &cpumask_of_cpu(cpu));
 }
 
-void smp_call_function_client(int irq, struct pt_regs *regs)
+void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs)
 {
 	clear_softint(1 << irq);
 	generic_smp_call_function_interrupt();
 }
 
-void smp_call_function_single_client(int irq, struct pt_regs *regs)
+void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs)
 {
 	clear_softint(1 << irq);
 	generic_smp_call_function_single_interrupt();
@@ -964,7 +965,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
 	put_cpu();
 }
 
-void smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
+void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
 {
 	struct mm_struct *mm;
 	unsigned long flags;
@@ -1148,7 +1149,7 @@ void smp_release(void)
  */
 extern void prom_world(int);
 
-void smp_penguin_jailcell(int irq, struct pt_regs *regs)
+void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs)
 {
 	clear_softint(1 << irq);
 
@@ -1364,7 +1365,7 @@ void smp_send_reschedule(int cpu)
 		      &cpumask_of_cpu(cpu));
 }
 
-void smp_receive_signal_client(int irq, struct pt_regs *regs)
+void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
 {
 	clear_softint(1 << irq);
 }
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index f25858e442ab4..c7bbe6cf7b85a 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -35,6 +35,7 @@
 #include <linux/clocksource.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/ftrace.h>
 
 #include <asm/oplib.h>
 #include <asm/timer.h>
@@ -717,7 +718,7 @@ static struct clock_event_device sparc64_clockevent = {
 };
 static DEFINE_PER_CPU(struct clock_event_device, sparc64_events);
 
-void timer_interrupt(int irq, struct pt_regs *regs)
+void __irq_entry timer_interrupt(int irq, struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	unsigned long tick_mask = tick_ops->softint_mask;
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 4e59925939674..c4f5758c9dc77 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -46,6 +46,7 @@ SECTIONS
 		SCHED_TEXT
 		LOCK_TEXT
 		KPROBES_TEXT
+		IRQENTRY_TEXT
 		*(.gnu.warning)
 	} = 0
 	_etext = .;
diff --git a/arch/sparc/lib/mcount.S b/arch/sparc/lib/mcount.S
index 153c80e62cf19..3753e3c6e176a 100644
--- a/arch/sparc/lib/mcount.S
+++ b/arch/sparc/lib/mcount.S
@@ -26,22 +26,42 @@ mcount:
 #else
 	sethi		%hi(function_trace_stop), %g1
 	lduw		[%g1 + %lo(function_trace_stop)], %g2
-	brnz,pn		%g2, 1f
+	brnz,pn		%g2, 2f
 	 sethi		%hi(ftrace_trace_function), %g1
 	sethi		%hi(ftrace_stub), %g2
 	ldx		[%g1 + %lo(ftrace_trace_function)], %g1
 	or		%g2, %lo(ftrace_stub), %g2
 	cmp		%g1, %g2
 	be,pn		%icc, 1f
-	 mov		%i7, %g2
+	 mov		%i7, %g3
 	save		%sp, -128, %sp
-	mov		%g2, %o1
+	mov		%g3, %o1
 	jmpl		%g1, %o7
 	 mov		%i7, %o0
 	ret
 	 restore
 	/* not reached */
 1:
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+	sethi		%hi(ftrace_graph_return), %g1
+	ldx		[%g1 + %lo(ftrace_graph_return)], %g3
+	cmp		%g2, %g3
+	bne,pn		%xcc, 5f
+	 sethi		%hi(ftrace_graph_entry_stub), %g2
+	sethi		%hi(ftrace_graph_entry), %g1
+	or		%g2, %lo(ftrace_graph_entry_stub), %g2
+	ldx		[%g1 + %lo(ftrace_graph_entry)], %g1
+	cmp		%g1, %g2
+	be,pt		%xcc, 2f
+	 nop
+5:	mov		%i7, %g2
+	mov		%fp, %g3
+	save		%sp, -128, %sp
+	mov		%g2, %l0
+	ba,pt		%xcc, ftrace_graph_caller
+	 mov		%g3, %l1
+#endif
+2:
 #endif
 #endif
 	retl
@@ -62,18 +82,48 @@ ftrace_stub:
 ftrace_caller:
 	sethi		%hi(function_trace_stop), %g1
 	mov		%i7, %g2
-	lduw		[%g1 + %lo(function_trace_stop)], %g3
-	brnz,pn		%g3, ftrace_stub
-	 nop
+	lduw		[%g1 + %lo(function_trace_stop)], %g1
+	brnz,pn		%g1, ftrace_stub
+	 mov		%fp, %g3
 	save		%sp, -128, %sp
 	mov		%g2, %o1
+	mov		%g2, %l0
+	mov		%g3, %l1
 	.globl		ftrace_call
 ftrace_call:
 	call		ftrace_stub
 	 mov		%i7, %o0
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+	.globl		ftrace_graph_call
+ftrace_graph_call:
+	call		ftrace_stub
+	 nop
+#endif
 	ret
 	 restore
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+	.size		ftrace_graph_call,.-ftrace_graph_call
+#endif
 	.size		ftrace_call,.-ftrace_call
 	.size		ftrace_caller,.-ftrace_caller
 #endif
 #endif
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ENTRY(ftrace_graph_caller)
+	mov		%l0, %o0
+	mov		%i7, %o1
+	call		prepare_ftrace_return
+	 mov		%l1, %o2
+	ret
+	 restore	%o0, -8, %i7
+END(ftrace_graph_caller)
+
+ENTRY(return_to_handler)
+	save		%sp, -128, %sp
+	call		ftrace_return_to_handler
+	 mov		%fp, %o0
+	jmpl		%o0 + 8, %g0
+	 restore
+END(return_to_handler)
+#endif

From 8b8d8e2840a440d62e8dc0ef36ba433b26f70d32 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 9 Apr 2010 00:14:35 -0700
Subject: [PATCH 135/464] sparc64: Support kmemleak.

Only missing thing was an _sdata marker in vmlinux.lds.S

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/vmlinux.lds.S | 4 ++++
 lib/Kconfig.debug               | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index c4f5758c9dc77..0c1e6783657f2 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -52,6 +52,10 @@ SECTIONS
 	_etext = .;
 
 	RO_DATA(PAGE_SIZE)
+
+	/* Start of data section */
+	_sdata = .;
+
 	.data1 : {
 		*(.data1)
 	}
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1fafb4b99c9bb..6c2be60895590 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -356,7 +356,7 @@ config SLUB_STATS
 config DEBUG_KMEMLEAK
 	bool "Kernel memory leak detector"
 	depends on DEBUG_KERNEL && EXPERIMENTAL && !MEMORY_HOTPLUG && \
-		(X86 || ARM || PPC || S390 || SUPERH)
+		(X86 || ARM || PPC || S390 || SPARC64 || SUPERH)
 
 	select DEBUG_FS if SYSFS
 	select STACKTRACE if STACKTRACE_SUPPORT

From 25ad403f67d7673f38a473ec138d240804785ae3 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 10 Apr 2010 20:24:22 -0700
Subject: [PATCH 136/464] sparc64: Add kmemleak annotation to
 sun4v_build_virq()

The only reference we store to this memory is in the form of a
physical address, so kmemleak can't see it.

Add a kmemleak_not_leak() annotation.

It's probably useful to be able to look at a dump of these things
either via debugfs or similar, and thus we could at some point store
them in some kind of table and therefore get rid of this annotation.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/irq_64.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index af5c76c04e997..454ce3a252734 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -648,6 +648,14 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
 	bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC);
 	if (unlikely(!bucket))
 		return 0;
+
+	/* The only reference we store to the IRQ bucket is
+	 * by physical address which kmemleak can't see, tell
+	 * it that this object explicitly is not a leak and
+	 * should be scanned.
+	 */
+	kmemleak_not_leak(bucket);
+
 	__flush_dcache_range((unsigned long) bucket,
 			     ((unsigned long) bucket +
 			      sizeof(struct ino_bucket)));

From e182c77cc291456eed127b1472952ddb59a81a9d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 10 Apr 2010 20:26:55 -0700
Subject: [PATCH 137/464] sparc64: Fix memory leak in
 pci_register_iommu_region().

Found by kmemleak.

If request_resource() fails, we leak the struct resource we
allocated to represent the IOMMU mapping area.

This actually happens on sun4v machines because the IOMEM area is only
reported sans the IOMMU region, unlike all previous systems.  I'll
need to fix that at some point, but for now fix the leak.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/pci_common.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/sparc/kernel/pci_common.c b/arch/sparc/kernel/pci_common.c
index b775658a927d2..8a000583b5cf6 100644
--- a/arch/sparc/kernel/pci_common.c
+++ b/arch/sparc/kernel/pci_common.c
@@ -371,14 +371,19 @@ static void pci_register_iommu_region(struct pci_pbm_info *pbm)
 		struct resource *rp = kzalloc(sizeof(*rp), GFP_KERNEL);
 
 		if (!rp) {
-			prom_printf("Cannot allocate IOMMU resource.\n");
-			prom_halt();
+			pr_info("%s: Cannot allocate IOMMU resource.\n",
+				pbm->name);
+			return;
 		}
 		rp->name = "IOMMU";
 		rp->start = pbm->mem_space.start + (unsigned long) vdma[0];
 		rp->end = rp->start + (unsigned long) vdma[1] - 1UL;
 		rp->flags = IORESOURCE_BUSY;
-		request_resource(&pbm->mem_space, rp);
+		if (request_resource(&pbm->mem_space, rp)) {
+			pr_info("%s: Unable to request IOMMU resource.\n",
+				pbm->name);
+			kfree(rp);
+		}
 	}
 }
 

From b68b58fd6a341c2115ff5fb466fe9fc0b581980e Mon Sep 17 00:00:00 2001
From: Philby John <pjohn@mvista.com>
Date: Fri, 26 Mar 2010 21:37:51 +0530
Subject: [PATCH 138/464] ALSA: aaci - Fix alignment faults on ARM Cortex
 introduced by commit 29a4f2d3

The commit 29a4f2d3 used writel() at offset 0x26 which is
half-word aligned causing unaligned exceptions on a
Cortex-A8. The original patch solved the "aaci-pl041 fpga:04:
ac97 read back fail" issue on a soft reset. Reading from any
arbitrary aaci register seems to solve this issue.

Signed-off-by: Philby John <pjohn@mvista.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/arm/aaci.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 656e474dca47f..91acc9a243ec4 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -863,7 +863,6 @@ static int __devinit aaci_probe_ac97(struct aaci *aaci)
 	struct snd_ac97 *ac97;
 	int ret;
 
-	writel(0, aaci->base + AC97_POWERDOWN);
 	/*
 	 * Assert AACIRESET for 2us
 	 */
@@ -1047,7 +1046,11 @@ static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
 
 	writel(0x1fff, aaci->base + AACI_INTCLR);
 	writel(aaci->maincr, aaci->base + AACI_MAINCR);
-
+	/*
+	 * Fix: ac97 read back fail errors by reading
+	 * from any arbitrary aaci register.
+	 */
+	readl(aaci->base + AACI_CSCH1);
 	ret = aaci_probe_ac97(aaci);
 	if (ret)
 		goto out;

From c011f80ba0912486fe51dd2b3f71d9b33a151188 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 13 Apr 2010 01:50:43 -0700
Subject: [PATCH 139/464] sparc64: Add some more commentary to
 __raw_local_irq_save()

Suggested by Peter Zijlstra

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/irqflags_64.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/sparc/include/asm/irqflags_64.h b/arch/sparc/include/asm/irqflags_64.h
index a16e94c4b1494..bfa1ea45b4cdb 100644
--- a/arch/sparc/include/asm/irqflags_64.h
+++ b/arch/sparc/include/asm/irqflags_64.h
@@ -80,6 +80,13 @@ static inline unsigned long __raw_local_irq_save(void)
 
 	/* Disable interrupts to PIL_NORMAL_MAX unless we already
 	 * are using PIL_NMI, in which case PIL_NMI is retained.
+	 *
+	 * The only values we ever program into the %pil are 0,
+	 * PIL_NORMAL_MAX and PIL_NMI.
+	 *
+	 * Since PIL_NMI is the largest %pil value and all bits are
+	 * set in it (0xf), it doesn't matter what PIL_NORMAL_MAX
+	 * actually is.
 	 */
 	__asm__ __volatile__(
 		"rdpr	%%pil, %0\n\t"

From d5aa22520dbb49e726420ca56b3dcfe56724d33e Mon Sep 17 00:00:00 2001
From: Stefan Assmann <sassmann@redhat.com>
Date: Fri, 9 Apr 2010 09:51:34 +0000
Subject: [PATCH 140/464] igb: restrict WoL for 82576 ET2 Quad Port Server
 Adapter

Restrict Wake-on-LAN to first port on 82576 ET2 quad port NICs, as it is
only supported there.

Signed-off-by: Stefan Assmann <sassmann@redhat.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_ethtool.c | 1 +
 drivers/net/igb/igb_main.c    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index d313fae992da8..743038490104b 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1814,6 +1814,7 @@ static int igb_wol_exclusion(struct igb_adapter *adapter,
 		retval = 0;
 		break;
 	case E1000_DEV_ID_82576_QUAD_COPPER:
+	case E1000_DEV_ID_82576_QUAD_COPPER_ET2:
 		/* quad port adapters only support WoL on port A */
 		if (!(adapter->flags & IGB_FLAG_QUAD_PORT_A)) {
 			wol->supported = 0;
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 9b3c51ab1758f..c9baa2aa98cd6 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1612,6 +1612,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 			adapter->eeprom_wol = 0;
 		break;
 	case E1000_DEV_ID_82576_QUAD_COPPER:
+	case E1000_DEV_ID_82576_QUAD_COPPER_ET2:
 		/* if quad port adapter, disable WoL on all but port A */
 		if (global_quad_port_a != 0)
 			adapter->eeprom_wol = 0;

From dac876193cd79ced36d0462749ea47c05844fb49 Mon Sep 17 00:00:00 2001
From: Terry Loftin <terry.loftin@hp.com>
Date: Fri, 9 Apr 2010 10:29:49 +0000
Subject: [PATCH 141/464] e1000e: stop cleaning when we reach
 tx_ring->next_to_use

Tx ring buffers after tx_ring->next_to_use are volatile and could
change, possibly causing a crash.  Stop cleaning when we hit
tx_ring->next_to_use.

Signed-off-by: Terry Loftin <terry.loftin@hp.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/e1000e/netdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index cfd09cea72145..73d43c53015a0 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -661,6 +661,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
 				i = 0;
 		}
 
+		if (i == tx_ring->next_to_use)
+			break;
 		eop = tx_ring->buffer_info[i].next_to_watch;
 		eop_desc = E1000_TX_DESC(*tx_ring, eop);
 	}

From 4ffa87012efd7b664762b579213d4663560ef4a3 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 9 Apr 2010 23:47:31 +0000
Subject: [PATCH 142/464] can: avoids a false warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

At this point optlen == sizeof(sfilter) but some compilers are dumb.

Reported-by: Németh Márton <nm127@freemail.h
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/can/raw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/can/raw.c b/net/can/raw.c
index 3a7dffb6519ce..da99cf153b337 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -445,7 +445,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
 				return -EFAULT;
 			}
 		} else if (count == 1) {
-			if (copy_from_user(&sfilter, optval, optlen))
+			if (copy_from_user(&sfilter, optval, sizeof(sfilter)))
 				return -EFAULT;
 		}
 

From a6d37024de02e7cb2b2333e438e71355a9c32a0a Mon Sep 17 00:00:00 2001
From: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Date: Sat, 10 Apr 2010 12:50:14 +0000
Subject: [PATCH 143/464] smc91c92_cs: define multicast_table as unsigned char

smc91c92_cs:
  * define multicast_table as unsigned char
  * remove unnecessary "#ifndef final_version"

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/pcmcia/smc91c92_cs.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index ff7eb9116b6a9..fd9d6e34fda43 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -1608,9 +1608,12 @@ static void set_rx_mode(struct net_device *dev)
 {
     unsigned int ioaddr = dev->base_addr;
     struct smc_private *smc = netdev_priv(dev);
-    u_int multicast_table[ 2 ] = { 0, };
+    unsigned char multicast_table[8];
     unsigned long flags;
     u_short rx_cfg_setting;
+    int i;
+
+    memset(multicast_table, 0, sizeof(multicast_table));
 
     if (dev->flags & IFF_PROMISC) {
 	rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
@@ -1622,10 +1625,6 @@ static void set_rx_mode(struct net_device *dev)
 
 	    netdev_for_each_mc_addr(mc_addr, dev) {
 		u_int position = ether_crc(6, mc_addr->dmi_addr);
-#ifndef final_version		/* Verify multicast address. */
-		if ((mc_addr->dmi_addr[0] & 1) == 0)
-		    continue;
-#endif
 		multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
 	    }
 	}
@@ -1635,8 +1634,8 @@ static void set_rx_mode(struct net_device *dev)
     /* Load MC table and Rx setting into the chip without interrupts. */
     spin_lock_irqsave(&smc->lock, flags);
     SMC_SELECT_BANK(3);
-    outl(multicast_table[0], ioaddr + MULTICAST0);
-    outl(multicast_table[1], ioaddr + MULTICAST4);
+    for (i = 0; i < 8; i++)
+	outb(multicast_table[i], ioaddr + MULTICAST0 + i);
     SMC_SELECT_BANK(0);
     outw(rx_cfg_setting, ioaddr + RCR);
     SMC_SELECT_BANK(2);

From 032d8f7268444a0f5d4ee02d9513d682d5b8edfc Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Tue, 13 Apr 2010 17:46:37 +0200
Subject: [PATCH 144/464] [LogFS] Prevent memory corruption on large deletes

Removing sufficiently large files would create aliases for a large
number of segments.  This in turn results in a large number of journal
entries and an overflow of s_je_array.

Cheap fix is to add a BUG_ON, turning memory corruption into something
annoying, but less dangerous.  Real fix is to count the number of
affected segments and prevent the problem completely.

Signed-off-by: Joern Engel <joern@logfs.org>
---
 fs/logfs/gc.c        |  8 ++++++++
 fs/logfs/journal.c   |  3 +++
 fs/logfs/logfs.h     |  8 +++++++-
 fs/logfs/readwrite.c | 14 ++++++++++++++
 fs/logfs/super.c     |  2 ++
 5 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/fs/logfs/gc.c b/fs/logfs/gc.c
index 92949f95a9010..e8253e7fb6b21 100644
--- a/fs/logfs/gc.c
+++ b/fs/logfs/gc.c
@@ -458,6 +458,14 @@ static void __logfs_gc_pass(struct super_block *sb, int target)
 	struct logfs_block *block;
 	int round, progress, last_progress = 0;
 
+	/*
+	 * Doing too many changes to the segfile at once would result
+	 * in a large number of aliases.  Write the journal before
+	 * things get out of hand.
+	 */
+	if (super->s_shadow_tree.no_shadowed_segments >= MAX_OBJ_ALIASES)
+		logfs_write_anchor(sb);
+
 	if (no_free_segments(sb) >= target &&
 			super->s_no_object_aliases < MAX_OBJ_ALIASES)
 		return;
diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index d57c7b07b60bd..2c22a4ad5329e 100644
--- a/fs/logfs/journal.c
+++ b/fs/logfs/journal.c
@@ -493,6 +493,8 @@ static void account_shadows(struct super_block *sb)
 
 	btree_grim_visitor64(&tree->new, (unsigned long)sb, account_shadow);
 	btree_grim_visitor64(&tree->old, (unsigned long)sb, account_shadow);
+	btree_grim_visitor32(&tree->segment_map, 0, NULL);
+	tree->no_shadowed_segments = 0;
 
 	if (li->li_block) {
 		/*
@@ -660,6 +662,7 @@ static int logfs_write_je_buf(struct super_block *sb, void *buf, u16 type,
 	if (ofs < 0)
 		return ofs;
 	logfs_buf_write(area, ofs, super->s_compressed_je, len);
+	BUG_ON(super->s_no_je >= MAX_JOURNAL_ENTRIES);
 	super->s_je_array[super->s_no_je++] = cpu_to_be64(ofs);
 	return 0;
 }
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index 97195b9e93a50..c9929eed80b13 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -257,10 +257,14 @@ struct logfs_shadow {
  * struct shadow_tree
  * @new:			shadows where old_ofs==0, indexed by new_ofs
  * @old:			shadows where old_ofs!=0, indexed by old_ofs
+ * @segment_map:		bitfield of segments containing shadows
+ * @no_shadowed_segment:	number of segments containing shadows
  */
 struct shadow_tree {
 	struct btree_head64 new;
 	struct btree_head64 old;
+	struct btree_head32 segment_map;
+	int no_shadowed_segments;
 };
 
 struct object_alias_item {
@@ -311,6 +315,8 @@ struct logfs_block_ops {
 			write_alias_t *write_one_alias);
 };
 
+#define MAX_JOURNAL_ENTRIES 256
+
 struct logfs_super {
 	struct mtd_info *s_mtd;			/* underlying device */
 	struct block_device *s_bdev;		/* underlying device */
@@ -377,7 +383,7 @@ struct logfs_super {
 	u32	 s_journal_ec[LOGFS_JOURNAL_SEGS]; /* journal erasecounts */
 	u64	 s_last_version;
 	struct logfs_area *s_journal_area;	/* open journal segment */
-	__be64	s_je_array[64];
+	__be64	s_je_array[MAX_JOURNAL_ENTRIES];
 	int	s_no_je;
 
 	int	 s_sum_index;			/* for the 12 summaries */
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 3659c37fbd724..7e0c39c497195 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -1219,6 +1219,18 @@ static void free_shadow(struct inode *inode, struct logfs_shadow *shadow)
 	mempool_free(shadow, super->s_shadow_pool);
 }
 
+static void mark_segment(struct shadow_tree *tree, u32 segno)
+{
+	int err;
+
+	if (!btree_lookup32(&tree->segment_map, segno)) {
+		err = btree_insert32(&tree->segment_map, segno, (void *)1,
+				GFP_NOFS);
+		BUG_ON(err);
+		tree->no_shadowed_segments++;
+	}
+}
+
 /**
  * fill_shadow_tree - Propagate shadow tree changes due to a write
  * @inode:	Inode owning the page
@@ -1266,6 +1278,8 @@ static void fill_shadow_tree(struct inode *inode, struct page *page,
 
 		super->s_dirty_used_bytes += shadow->new_len;
 		super->s_dirty_free_bytes += shadow->old_len;
+		mark_segment(tree, shadow->old_ofs >> super->s_segshift);
+		mark_segment(tree, shadow->new_ofs >> super->s_segshift);
 	}
 }
 
diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index 9d856c49afc5b..d6e1f4fc3115b 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -451,6 +451,8 @@ static int logfs_read_sb(struct super_block *sb, int read_only)
 
 	btree_init_mempool64(&super->s_shadow_tree.new, super->s_btree_pool);
 	btree_init_mempool64(&super->s_shadow_tree.old, super->s_btree_pool);
+	btree_init_mempool32(&super->s_shadow_tree.segment_map,
+			super->s_btree_pool);
 
 	ret = logfs_init_mapping(sb);
 	if (ret)

From d3a03f8031000f8297823b80e36db536fd020884 Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Tue, 13 Apr 2010 17:54:27 +0200
Subject: [PATCH 145/464] [LogFS] Plug 8 byte information leak

Within each journal segment, 8 bytes at offset 24 would remain
uninitialized.

Signed-off-by: Joern Engel <joern@logfs.org>
---
 fs/logfs/journal.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index 2c22a4ad5329e..2957bfc219278 100644
--- a/fs/logfs/journal.c
+++ b/fs/logfs/journal.c
@@ -388,7 +388,10 @@ static void journal_get_erase_count(struct logfs_area *area)
 static int journal_erase_segment(struct logfs_area *area)
 {
 	struct super_block *sb = area->a_sb;
-	struct logfs_segment_header sh;
+	union {
+		struct logfs_segment_header sh;
+		unsigned char c[ALIGN(sizeof(struct logfs_segment_header), 16)];
+	} u;
 	u64 ofs;
 	int err;
 
@@ -396,20 +399,21 @@ static int journal_erase_segment(struct logfs_area *area)
 	if (err)
 		return err;
 
-	sh.pad = 0;
-	sh.type = SEG_JOURNAL;
-	sh.level = 0;
-	sh.segno = cpu_to_be32(area->a_segno);
-	sh.ec = cpu_to_be32(area->a_erase_count);
-	sh.gec = cpu_to_be64(logfs_super(sb)->s_gec);
-	sh.crc = logfs_crc32(&sh, sizeof(sh), 4);
+	memset(&u, 0, sizeof(u));
+	u.sh.pad = 0;
+	u.sh.type = SEG_JOURNAL;
+	u.sh.level = 0;
+	u.sh.segno = cpu_to_be32(area->a_segno);
+	u.sh.ec = cpu_to_be32(area->a_erase_count);
+	u.sh.gec = cpu_to_be64(logfs_super(sb)->s_gec);
+	u.sh.crc = logfs_crc32(&u.sh, sizeof(u.sh), 4);
 
 	/* This causes a bug in segment.c.  Not yet. */
 	//logfs_set_segment_erased(sb, area->a_segno, area->a_erase_count, 0);
 
 	ofs = dev_ofs(sb, area->a_segno, 0);
-	area->a_used_bytes = ALIGN(sizeof(sh), 16);
-	logfs_buf_write(area, ofs, &sh, sizeof(sh));
+	area->a_used_bytes = sizeof(u);
+	logfs_buf_write(area, ofs, &u, sizeof(u));
 	return 0;
 }
 

From ead88af5f577fd2b399a0fcdfe52605116fac489 Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Tue, 13 Apr 2010 17:57:21 +0200
Subject: [PATCH 146/464] [LogFS] Move assertion

The assertion is valid independently of the condition.

Signed-off-by: Joern Engel <joern@logfs.org>
---
 fs/logfs/journal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index 2957bfc219278..fd44eeea51356 100644
--- a/fs/logfs/journal.c
+++ b/fs/logfs/journal.c
@@ -612,9 +612,9 @@ static size_t __logfs_write_je(struct super_block *sb, void *buf, u16 type,
 	if (len == 0)
 		return logfs_write_header(super, header, 0, type);
 
+	BUG_ON(len > sb->s_blocksize);
 	compr_len = logfs_compress(buf, data, len, sb->s_blocksize);
 	if (compr_len < 0 || type == JE_ANCHOR) {
-		BUG_ON(len > sb->s_blocksize);
 		memcpy(data, buf, len);
 		compr_len = len;
 		compr = COMPR_NONE;

From fc837c8f0446b73a1661339db406c0238dd1d184 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Tue, 13 Apr 2010 11:41:22 -0700
Subject: [PATCH 147/464] ceph: queue_cap_snap should always queue dirty
 context

This simplifies the calling convention, and fixes a bug where we queue a
capsnap with a context other than i_head_snapc (the one that matches the
dirty pages).  The result was a BUG at fs/ceph/caps.c:2178 on writeback
completion when a capsnap matching the writeback snapc could not be found.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/snap.c  | 16 +++++++---------
 fs/ceph/super.h |  3 +--
 2 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 7e3e5f9edaa41..d197431532c00 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -430,8 +430,7 @@ static int dup_array(u64 **dst, __le64 *src, int num)
  * Caller must hold snap_rwsem for read (i.e., the realm topology won't
  * change).
  */
-void ceph_queue_cap_snap(struct ceph_inode_info *ci,
-			 struct ceph_snap_context *snapc)
+void ceph_queue_cap_snap(struct ceph_inode_info *ci)
 {
 	struct inode *inode = &ci->vfs_inode;
 	struct ceph_cap_snap *capsnap;
@@ -450,10 +449,11 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
 		   as no new writes are allowed to start when pending, so any
 		   writes in progress now were started before the previous
 		   cap_snap.  lucky us. */
-		dout("queue_cap_snap %p snapc %p seq %llu used %d"
-		     " already pending\n", inode, snapc, snapc->seq, used);
+		dout("queue_cap_snap %p already pending\n", inode);
 		kfree(capsnap);
 	} else if (ci->i_wrbuffer_ref_head || (used & CEPH_CAP_FILE_WR)) {
+		struct ceph_snap_context *snapc = ci->i_head_snapc;
+
 		igrab(inode);
 
 		atomic_set(&capsnap->nref, 1);
@@ -462,7 +462,6 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
 		INIT_LIST_HEAD(&capsnap->flushing_item);
 
 		capsnap->follows = snapc->seq - 1;
-		capsnap->context = ceph_get_snap_context(snapc);
 		capsnap->issued = __ceph_caps_issued(ci, NULL);
 		capsnap->dirty = __ceph_caps_dirty(ci);
 
@@ -479,7 +478,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
 		   snapshot. */
 		capsnap->dirty_pages = ci->i_wrbuffer_ref_head;
 		ci->i_wrbuffer_ref_head = 0;
-		ceph_put_snap_context(ci->i_head_snapc);
+		capsnap->context = snapc;
 		ci->i_head_snapc = NULL;
 		list_add_tail(&capsnap->ci_item, &ci->i_cap_snaps);
 
@@ -603,7 +602,7 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
 				if (lastinode)
 					iput(lastinode);
 				lastinode = inode;
-				ceph_queue_cap_snap(ci, realm->cached_context);
+				ceph_queue_cap_snap(ci);
 				spin_lock(&realm->inodes_with_caps_lock);
 			}
 			spin_unlock(&realm->inodes_with_caps_lock);
@@ -825,8 +824,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
 			spin_unlock(&realm->inodes_with_caps_lock);
 			spin_unlock(&inode->i_lock);
 
-			ceph_queue_cap_snap(ci,
-					    ci->i_snap_realm->cached_context);
+			ceph_queue_cap_snap(ci);
 
 			iput(inode);
 			continue;
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 65d12036b670c..4c07acaf21e35 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -714,8 +714,7 @@ extern int ceph_update_snap_trace(struct ceph_mds_client *m,
 extern void ceph_handle_snap(struct ceph_mds_client *mdsc,
 			     struct ceph_mds_session *session,
 			     struct ceph_msg *msg);
-extern void ceph_queue_cap_snap(struct ceph_inode_info *ci,
-				struct ceph_snap_context *snapc);
+extern void ceph_queue_cap_snap(struct ceph_inode_info *ci);
 extern int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
 				  struct ceph_cap_snap *capsnap);
 extern void ceph_cleanup_empty_realms(struct ceph_mds_client *mdsc);

From e1e4dd0caa63e166afa46a1ccc947bebb4f66bcf Mon Sep 17 00:00:00 2001
From: Yehuda Sadeh <yehuda@hq.newdream.net>
Date: Tue, 13 Apr 2010 11:45:56 -0700
Subject: [PATCH 148/464] ceph: reserve one more caps space when doing readdir

We were missing space for the directory cap.  The result was a BUG at
fs/ceph/caps.c:2178.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 7505b4f1f5971..159f588ca1609 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -311,7 +311,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir)
 		req->r_readdir_offset = fi->next_offset;
 		req->r_args.readdir.frag = cpu_to_le32(frag);
 		req->r_args.readdir.max_entries = cpu_to_le32(max_entries);
-		req->r_num_caps = max_entries;
+		req->r_num_caps = max_entries + 1;
 		err = ceph_mdsc_do_request(mdsc, NULL, req);
 		if (err < 0) {
 			ceph_mdsc_put_request(req);

From a6a5349d17f2a5c37079826f1a1474c3d08c6b53 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Tue, 13 Apr 2010 14:07:07 -0700
Subject: [PATCH 149/464] ceph: use separate class for ceph sockets' sk_lock

Use a separate class for ceph sockets to prevent lockdep confusion.
Because ceph sockets only get passed kernel pointers, there is no
dependency from sk_lock -> mmap_sem.  If we share the same class as other
sockets, lockdep detects a circular dependency from

	mmap_sem (page fault) -> fs mutex -> sk_lock -> mmap_sem

because dependencies are noted from both ceph and user contexts.  Using
a separate class prevents the sk_lock(ceph) -> mmap_sem dependency and
makes lockdep happy.

Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/messenger.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index f35b4945a9c3a..5c75d5d32b27c 100644
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -29,6 +29,10 @@ static char tag_msg = CEPH_MSGR_TAG_MSG;
 static char tag_ack = CEPH_MSGR_TAG_ACK;
 static char tag_keepalive = CEPH_MSGR_TAG_KEEPALIVE;
 
+#ifdef CONFIG_LOCKDEP
+static struct lock_class_key socket_class;
+#endif
+
 
 static void queue_con(struct ceph_connection *con);
 static void con_work(struct work_struct *);
@@ -227,6 +231,10 @@ static struct socket *ceph_tcp_connect(struct ceph_connection *con)
 	con->sock = sock;
 	sock->sk->sk_allocation = GFP_NOFS;
 
+#ifdef CONFIG_LOCKDEP
+	lockdep_set_class(&sock->sk->sk_lock, &socket_class);
+#endif
+
 	set_sock_callbacks(sock, con);
 
 	dout("connect %s\n", pr_addr(&con->peer_addr.in_addr));

From 2e2dc1d755cc5609d0c46d47f7d171318b3bffcd Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 13 Apr 2010 14:28:24 -0700
Subject: [PATCH 150/464] sparc: Fix forgotten kmemleak headers inclusion
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fix forgotten kmemleak headers inclusion for kmemleak_not_leak()
declaration.

This fixes the following build error:

	arch/sparc/kernel/irq_64.c: In function ‘sun4v_build_virq’:
	arch/sparc/kernel/irq_64.c:657: error: implicit declaration of function ‘kmemleak_not_leak’

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/irq_64.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 454ce3a252734..2b04c722cc3e3 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -22,6 +22,7 @@
 #include <linux/seq_file.h>
 #include <linux/ftrace.h>
 #include <linux/irq.h>
+#include <linux/kmemleak.h>
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>

From 5c659322a904a7cc0265e7b183372b9bdebec6db Mon Sep 17 00:00:00 2001
From: Ayaz Abdulla <aabdulla@nvidia.com>
Date: Tue, 13 Apr 2010 18:49:51 -0700
Subject: [PATCH 151/464] forcedeth: fix tx limit2 flag check

This is a fix for bug 572201 @ bugs.debian.org

This patch fixes the TX_LIMIT feature flag. The previous logic check
for TX_LIMIT2 also took into account a device that only had TX_LIMIT
set.

Reported-by: Stephen Mulcahu <stephen.mulcahy@deri.org>
Reported-by: Ben Huchings <ben@decadent.org.uk>
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/forcedeth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 73b260c3c6542..5c98f7c22425e 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -5899,7 +5899,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	/* Limit the number of tx's outstanding for hw bug */
 	if (id->driver_data & DEV_NEED_TX_LIMIT) {
 		np->tx_limit = 1;
-		if ((id->driver_data & DEV_NEED_TX_LIMIT2) &&
+		if (((id->driver_data & DEV_NEED_TX_LIMIT2) == DEV_NEED_TX_LIMIT2) &&
 		    pci_dev->revision >= 0xA2)
 			np->tx_limit = 0;
 	}

From 035df35d968323f6f463c8789553e8589efcbcd4 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 13 Apr 2010 18:59:02 -0700
Subject: [PATCH 152/464] sparc64: Allocate sufficient stack space in ftrace
 stubs.

128 bytes is sufficient for the register window save area, but the
calling conventions allow the callee to save up to 6 incoming argument
registers into the stack frame after the register window save area.

This means a minimal stack frame is 176 bytes (128 + (6 * 8)).

This fixes random crashes when using the function tracer.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/lib/mcount.S | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/sparc/lib/mcount.S b/arch/sparc/lib/mcount.S
index 3753e3c6e176a..3ad6cbdc21636 100644
--- a/arch/sparc/lib/mcount.S
+++ b/arch/sparc/lib/mcount.S
@@ -34,7 +34,7 @@ mcount:
 	cmp		%g1, %g2
 	be,pn		%icc, 1f
 	 mov		%i7, %g3
-	save		%sp, -128, %sp
+	save		%sp, -176, %sp
 	mov		%g3, %o1
 	jmpl		%g1, %o7
 	 mov		%i7, %o0
@@ -56,7 +56,7 @@ mcount:
 	 nop
 5:	mov		%i7, %g2
 	mov		%fp, %g3
-	save		%sp, -128, %sp
+	save		%sp, -176, %sp
 	mov		%g2, %l0
 	ba,pt		%xcc, ftrace_graph_caller
 	 mov		%g3, %l1
@@ -85,7 +85,7 @@ ftrace_caller:
 	lduw		[%g1 + %lo(function_trace_stop)], %g1
 	brnz,pn		%g1, ftrace_stub
 	 mov		%fp, %g3
-	save		%sp, -128, %sp
+	save		%sp, -176, %sp
 	mov		%g2, %o1
 	mov		%g2, %l0
 	mov		%g3, %l1
@@ -120,7 +120,7 @@ ENTRY(ftrace_graph_caller)
 END(ftrace_graph_caller)
 
 ENTRY(return_to_handler)
-	save		%sp, -128, %sp
+	save		%sp, -176, %sp
 	call		ftrace_return_to_handler
 	 mov		%fp, %o0
 	jmpl		%o0 + 8, %g0

From afb567e3fdd2ee43b243cb4f6fe772ab921b2ada Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Tue, 13 Apr 2010 23:08:58 -0700
Subject: [PATCH 153/464] Revert "Input: wacom - merge out and in prox events"

This reverts commit 776943fd6f104a6e8457dc95a17282e69e963666 as it
causes issues with ISDv4 E3 touchscreens:

	https://bugzilla.kernel.org/show_bug.cgi?id=15670

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/tablet/wacom_wac.c | 163 ++++++++++++++++++++-----------
 1 file changed, 104 insertions(+), 59 deletions(-)

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index b3ba3437a2eb8..4a852d815c681 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -155,19 +155,19 @@ static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo)
 {
 	struct wacom_features *features = &wacom->features;
 	unsigned char *data = wacom->data;
-	int x, y, prox;
-	int rw = 0;
-	int retval = 0;
+	int x, y, rw;
+	static int penData = 0;
 
 	if (data[0] != WACOM_REPORT_PENABLED) {
 		dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
-		goto exit;
+		return 0;
 	}
 
-	prox = data[1] & 0x80;
-	if (prox || wacom->id[0]) {
-		if (prox) {
-			switch ((data[1] >> 5) & 3) {
+	if (data[1] & 0x80) {
+		/* in prox and not a pad data */
+		penData = 1;
+
+		switch ((data[1] >> 5) & 3) {
 
 			case 0:	/* Pen */
 				wacom->tool[0] = BTN_TOOL_PEN;
@@ -181,13 +181,23 @@ static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo)
 
 			case 2: /* Mouse with wheel */
 				wacom_report_key(wcombo, BTN_MIDDLE, data[1] & 0x04);
+				if (features->type == WACOM_G4 || features->type == WACOM_MO) {
+					rw = data[7] & 0x04 ? (data[7] & 0x03)-4 : (data[7] & 0x03);
+					wacom_report_rel(wcombo, REL_WHEEL, -rw);
+				} else
+					wacom_report_rel(wcombo, REL_WHEEL, -(signed char) data[6]);
 				/* fall through */
 
 			case 3: /* Mouse without wheel */
 				wacom->tool[0] = BTN_TOOL_MOUSE;
 				wacom->id[0] = CURSOR_DEVICE_ID;
+				wacom_report_key(wcombo, BTN_LEFT, data[1] & 0x01);
+				wacom_report_key(wcombo, BTN_RIGHT, data[1] & 0x02);
+				if (features->type == WACOM_G4 || features->type == WACOM_MO)
+					wacom_report_abs(wcombo, ABS_DISTANCE, data[6] & 0x3f);
+				else
+					wacom_report_abs(wcombo, ABS_DISTANCE, data[7] & 0x3f);
 				break;
-			}
 		}
 		x = wacom_le16_to_cpu(&data[2]);
 		y = wacom_le16_to_cpu(&data[4]);
@@ -198,32 +208,36 @@ static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo)
 			wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x01);
 			wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02);
 			wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x04);
-		} else {
-			wacom_report_key(wcombo, BTN_LEFT, data[1] & 0x01);
-			wacom_report_key(wcombo, BTN_RIGHT, data[1] & 0x02);
-			if (features->type == WACOM_G4 ||
-					features->type == WACOM_MO) {
-				wacom_report_abs(wcombo, ABS_DISTANCE, data[6] & 0x3f);
-				rw = (signed)(data[7] & 0x04) - (data[7] & 0x03);
-			} else {
-				wacom_report_abs(wcombo, ABS_DISTANCE, data[7] & 0x3f);
-				rw = -(signed)data[6];
-			}
-			wacom_report_rel(wcombo, REL_WHEEL, rw);
 		}
-
-		if (!prox)
-			wacom->id[0] = 0;
 		wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]); /* report tool id */
-		wacom_report_key(wcombo, wacom->tool[0], prox);
-		wacom_input_sync(wcombo); /* sync last event */
+		wacom_report_key(wcombo, wacom->tool[0], 1);
+	} else if (wacom->id[0]) {
+		wacom_report_abs(wcombo, ABS_X, 0);
+		wacom_report_abs(wcombo, ABS_Y, 0);
+		if (wacom->tool[0] == BTN_TOOL_MOUSE) {
+			wacom_report_key(wcombo, BTN_LEFT, 0);
+			wacom_report_key(wcombo, BTN_RIGHT, 0);
+			wacom_report_abs(wcombo, ABS_DISTANCE, 0);
+		} else {
+			wacom_report_abs(wcombo, ABS_PRESSURE, 0);
+			wacom_report_key(wcombo, BTN_TOUCH, 0);
+			wacom_report_key(wcombo, BTN_STYLUS, 0);
+			wacom_report_key(wcombo, BTN_STYLUS2, 0);
+		}
+		wacom->id[0] = 0;
+		wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */
+		wacom_report_key(wcombo, wacom->tool[0], 0);
 	}
 
 	/* send pad data */
 	switch (features->type) {
 	    case WACOM_G4:
-		prox = data[7] & 0xf8;
-		if (prox || wacom->id[1]) {
+		if (data[7] & 0xf8) {
+			if (penData) {
+				wacom_input_sync(wcombo); /* sync last event */
+				if (!wacom->id[0])
+					penData = 0;
+			}
 			wacom->id[1] = PAD_DEVICE_ID;
 			wacom_report_key(wcombo, BTN_0, (data[7] & 0x40));
 			wacom_report_key(wcombo, BTN_4, (data[7] & 0x80));
@@ -231,16 +245,29 @@ static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo)
 			wacom_report_rel(wcombo, REL_WHEEL, rw);
 			wacom_report_key(wcombo, BTN_TOOL_FINGER, 0xf0);
 			wacom_report_abs(wcombo, ABS_MISC, wacom->id[1]);
-			if (!prox)
-				wacom->id[1] = 0;
-			wacom_report_abs(wcombo, ABS_MISC, wacom->id[1]);
+			wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
+		} else if (wacom->id[1]) {
+			if (penData) {
+				wacom_input_sync(wcombo); /* sync last event */
+				if (!wacom->id[0])
+					penData = 0;
+			}
+			wacom->id[1] = 0;
+			wacom_report_key(wcombo, BTN_0, (data[7] & 0x40));
+			wacom_report_key(wcombo, BTN_4, (data[7] & 0x80));
+			wacom_report_rel(wcombo, REL_WHEEL, 0);
+			wacom_report_key(wcombo, BTN_TOOL_FINGER, 0);
+			wacom_report_abs(wcombo, ABS_MISC, 0);
 			wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
 		}
-		retval = 1;
 		break;
 	    case WACOM_MO:
-		prox = (data[7] & 0xf8) || data[8];
-		if (prox || wacom->id[1]) {
+		if ((data[7] & 0xf8) || (data[8] & 0xff)) {
+			if (penData) {
+				wacom_input_sync(wcombo); /* sync last event */
+				if (!wacom->id[0])
+					penData = 0;
+			}
 			wacom->id[1] = PAD_DEVICE_ID;
 			wacom_report_key(wcombo, BTN_0, (data[7] & 0x08));
 			wacom_report_key(wcombo, BTN_1, (data[7] & 0x20));
@@ -248,16 +275,27 @@ static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo)
 			wacom_report_key(wcombo, BTN_5, (data[7] & 0x40));
 			wacom_report_abs(wcombo, ABS_WHEEL, (data[8] & 0x7f));
 			wacom_report_key(wcombo, BTN_TOOL_FINGER, 0xf0);
-			if (!prox)
-				wacom->id[1] = 0;
 			wacom_report_abs(wcombo, ABS_MISC, wacom->id[1]);
 			wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
+		} else if (wacom->id[1]) {
+			if (penData) {
+				wacom_input_sync(wcombo); /* sync last event */
+				if (!wacom->id[0])
+					penData = 0;
+			}
+			wacom->id[1] = 0;
+			wacom_report_key(wcombo, BTN_0, (data[7] & 0x08));
+			wacom_report_key(wcombo, BTN_1, (data[7] & 0x20));
+			wacom_report_key(wcombo, BTN_4, (data[7] & 0x10));
+			wacom_report_key(wcombo, BTN_5, (data[7] & 0x40));
+			wacom_report_abs(wcombo, ABS_WHEEL, (data[8] & 0x7f));
+			wacom_report_key(wcombo, BTN_TOOL_FINGER, 0);
+			wacom_report_abs(wcombo, ABS_MISC, 0);
+			wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
 		}
-		retval = 1;
 		break;
 	}
-exit:
-	return retval;
+	return 1;
 }
 
 static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo)
@@ -598,9 +636,9 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo)
 static void wacom_tpc_finger_in(struct wacom_wac *wacom, void *wcombo, char *data, int idx)
 {
 	wacom_report_abs(wcombo, ABS_X,
-		data[2 + idx * 2] | ((data[3 + idx * 2] & 0x7f) << 8));
+		(data[2 + idx * 2] & 0xff) | ((data[3 + idx * 2] & 0x7f) << 8));
 	wacom_report_abs(wcombo, ABS_Y,
-		data[6 + idx * 2] | ((data[7 + idx * 2] & 0x7f) << 8));
+		(data[6 + idx * 2] & 0xff) | ((data[7 + idx * 2] & 0x7f) << 8));
 	wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]);
 	wacom_report_key(wcombo, wacom->tool[idx], 1);
 	if (idx)
@@ -744,24 +782,31 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, void *wcombo)
 
 		touchInProx = 0;
 
-		if (!wacom->id[0]) { /* first in prox */
-			/* Going into proximity select tool */
-			wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
-			if (wacom->tool[0] == BTN_TOOL_PEN)
-				wacom->id[0] = STYLUS_DEVICE_ID;
-			else
-				wacom->id[0] = ERASER_DEVICE_ID;
-		}
-		wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02);
-		wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x10);
-		wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[2]));
-		wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[4]));
-		pressure = ((data[7] & 0x01) << 8) | data[6];
-		if (pressure < 0)
-			pressure = features->pressure_max + pressure + 1;
-		wacom_report_abs(wcombo, ABS_PRESSURE, pressure);
-		wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x05);
-		if (!prox) { /* out-prox */
+		if (prox) { /* in prox */
+			if (!wacom->id[0]) {
+				/* Going into proximity select tool */
+				wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+				if (wacom->tool[0] == BTN_TOOL_PEN)
+					wacom->id[0] = STYLUS_DEVICE_ID;
+				else
+					wacom->id[0] = ERASER_DEVICE_ID;
+			}
+			wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02);
+			wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x10);
+			wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[2]));
+			wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[4]));
+			pressure = ((data[7] & 0x01) << 8) | data[6];
+			if (pressure < 0)
+				pressure = features->pressure_max + pressure + 1;
+			wacom_report_abs(wcombo, ABS_PRESSURE, pressure);
+			wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x05);
+		} else {
+			wacom_report_abs(wcombo, ABS_X, 0);
+			wacom_report_abs(wcombo, ABS_Y, 0);
+			wacom_report_abs(wcombo, ABS_PRESSURE, 0);
+			wacom_report_key(wcombo, BTN_STYLUS, 0);
+			wacom_report_key(wcombo, BTN_STYLUS2, 0);
+			wacom_report_key(wcombo, BTN_TOUCH, 0);
 			wacom->id[0] = 0;
 			/* pen is out so touch can be enabled now */
 			touchInProx = 1;

From ec687886de00e1e63f3d821ccade9a61590408ed Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 14 Apr 2010 02:04:29 -0700
Subject: [PATCH 154/464] sparc64: Run NMIs on the hardirq stack.

Otherwise we can overflow the main stack with the function tracer
enabled.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/irq_64.c | 19 +------------------
 arch/sparc/kernel/kstack.h | 19 +++++++++++++++++++
 arch/sparc/kernel/nmi.c    |  7 +++++++
 3 files changed, 27 insertions(+), 18 deletions(-)

diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 2b04c722cc3e3..830d70a3e20b4 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -47,6 +47,7 @@
 
 #include "entry.h"
 #include "cpumap.h"
+#include "kstack.h"
 
 #define NUM_IVECS	(IMAP_INR + 1)
 
@@ -713,24 +714,6 @@ void ack_bad_irq(unsigned int virt_irq)
 void *hardirq_stack[NR_CPUS];
 void *softirq_stack[NR_CPUS];
 
-static __attribute__((always_inline)) void *set_hardirq_stack(void)
-{
-	void *orig_sp, *sp = hardirq_stack[smp_processor_id()];
-
-	__asm__ __volatile__("mov %%sp, %0" : "=r" (orig_sp));
-	if (orig_sp < sp ||
-	    orig_sp > (sp + THREAD_SIZE)) {
-		sp += THREAD_SIZE - 192 - STACK_BIAS;
-		__asm__ __volatile__("mov %0, %%sp" : : "r" (sp));
-	}
-
-	return orig_sp;
-}
-static __attribute__((always_inline)) void restore_hardirq_stack(void *orig_sp)
-{
-	__asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp));
-}
-
 void __irq_entry handler_irq(int irq, struct pt_regs *regs)
 {
 	unsigned long pstate, bucket_pa;
diff --git a/arch/sparc/kernel/kstack.h b/arch/sparc/kernel/kstack.h
index 5247283d1c03e..53dfb92e09fb5 100644
--- a/arch/sparc/kernel/kstack.h
+++ b/arch/sparc/kernel/kstack.h
@@ -61,4 +61,23 @@ static inline bool kstack_is_trap_frame(struct thread_info *tp, struct pt_regs *
 
 }
 
+static inline __attribute__((always_inline)) void *set_hardirq_stack(void)
+{
+	void *orig_sp, *sp = hardirq_stack[smp_processor_id()];
+
+	__asm__ __volatile__("mov %%sp, %0" : "=r" (orig_sp));
+	if (orig_sp < sp ||
+	    orig_sp > (sp + THREAD_SIZE)) {
+		sp += THREAD_SIZE - 192 - STACK_BIAS;
+		__asm__ __volatile__("mov %0, %%sp" : : "r" (sp));
+	}
+
+	return orig_sp;
+}
+
+static inline __attribute__((always_inline)) void restore_hardirq_stack(void *orig_sp)
+{
+	__asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp));
+}
+
 #endif /* _KSTACK_H */
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index 75a3d1a25356b..a4bd7ba74c89d 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -23,6 +23,8 @@
 #include <asm/ptrace.h>
 #include <asm/pcr.h>
 
+#include "kstack.h"
+
 /* We don't have a real NMI on sparc64, but we can fake one
  * up using profiling counter overflow interrupts and interrupt
  * levels.
@@ -92,6 +94,7 @@ static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
 notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
 {
 	unsigned int sum, touched = 0;
+	void *orig_sp;
 
 	clear_softint(1 << irq);
 
@@ -99,6 +102,8 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
 
 	nmi_enter();
 
+	orig_sp = set_hardirq_stack();
+
 	if (notify_die(DIE_NMI, "nmi", regs, 0,
 		       pt_regs_trap_type(regs), SIGINT) == NOTIFY_STOP)
 		touched = 1;
@@ -124,6 +129,8 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
 		pcr_ops->write(pcr_enable);
 	}
 
+	restore_hardirq_stack(orig_sp);
+
 	nmi_exit();
 }
 

From 317aa408d69a5b833a116317c18c7e957989ce44 Mon Sep 17 00:00:00 2001
From: Anders Larsen <al@alarsen.net>
Date: Thu, 4 Mar 2010 11:22:53 +0100
Subject: [PATCH 155/464] ARM: 5975/1: AT91 slow-clock suspend: don't wait when
 turning PLLs off

From: Julien Langer <julien.langer@gmail.com>

AT91: when turning off the PLLs during suspend, don't wait for the lock
flag to be set. Previously the code would always run into the loop
limitation of 1000 iterations because the flag is never set when turning
the PLLs off.

Comments from Anders Larsen:

 (in http://marc.info/?l=linux-kernel&m=127058929724193&w=2)

Signed-off-by: Julien Langer <julien.langer@gmail.com>
Signed-off-by: Anders Larsen <al@alarsen.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/pm_slowclock.S | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm/mach-at91/pm_slowclock.S b/arch/arm/mach-at91/pm_slowclock.S
index 9fcbd6ca0090b..9c5b48e68a713 100644
--- a/arch/arm/mach-at91/pm_slowclock.S
+++ b/arch/arm/mach-at91/pm_slowclock.S
@@ -175,8 +175,6 @@ ENTRY(at91_slow_clock)
 	orr	r3, r3, #(1 << 29)		/* bit 29 always set */
 	str	r3, [r1, #(AT91_CKGR_PLLAR - AT91_PMC)]
 
-	wait_pllalock
-
 	/* Save PLLB setting and disable it */
 	ldr	r3, [r1, #(AT91_CKGR_PLLBR - AT91_PMC)]
 	str	r3, .saved_pllbr
@@ -184,8 +182,6 @@ ENTRY(at91_slow_clock)
 	mov	r3, #AT91_PMC_PLLCOUNT
 	str	r3, [r1, #(AT91_CKGR_PLLBR - AT91_PMC)]
 
-	wait_pllblock
-
 	/* Turn off the main oscillator */
 	ldr	r3, [r1, #(AT91_CKGR_MOR - AT91_PMC)]
 	bic	r3, r3, #AT91_PMC_MOSCEN

From 7e5a69e83ba7a0d5917ad830f417cba8b8d6aa72 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@fluxnic.net>
Date: Mon, 29 Mar 2010 21:46:02 +0100
Subject: [PATCH 156/464] ARM: 6007/1: fix highmem with VIPT cache and DMA

The VIVT cache of a highmem page is always flushed before the page
is unmapped.  This cache flush is explicit through flush_cache_kmaps()
in flush_all_zero_pkmaps(), or through __cpuc_flush_dcache_area() in
kunmap_atomic().  There is also an implicit flush of those highmem pages
that were part of a process that just terminated making those pages free
as the whole VIVT cache has to be flushed on every task switch. Hence
unmapped highmem pages need no cache maintenance in that case.

However unmapped pages may still be cached with a VIPT cache because the
cache is tagged with physical addresses.  There is no need for a whole
cache flush during task switching for that reason, and despite the
explicit cache flushes in flush_all_zero_pkmaps() and kunmap_atomic(),
some highmem pages that were mapped in user space end up still cached
even when they become unmapped.

So, we do have to perform cache maintenance on those unmapped highmem
pages in the context of DMA when using a VIPT cache.  Unfortunately,
it is not possible to perform that cache maintenance using physical
addresses as all the L1 cache maintenance coprocessor functions accept
virtual addresses only.  Therefore we have no choice but to set up a
temporary virtual mapping for that purpose.

And of course the explicit cache flushing when unmapping a highmem page
on a system with a VIPT cache now can go, which should increase
performance.

While at it, because the code in __flush_dcache_page() has to be modified
anyway, let's also make sure the mapped highmem pages are pinned with
kmap_high_get() for the duration of the cache maintenance operation.
Because kunmap() does unmap highmem pages lazily, it was reported by
Gary King <GKing@nvidia.com> that those pages ended up being unmapped
during cache maintenance on SMP causing segmentation faults.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/highmem.h    | 15 +++++-
 arch/arm/include/asm/kmap_types.h |  1 +
 arch/arm/mm/copypage-v6.c         |  9 +---
 arch/arm/mm/dma-mapping.c         |  5 ++
 arch/arm/mm/flush.c               | 25 +++++----
 arch/arm/mm/highmem.c             | 87 ++++++++++++++++++++++++++++++-
 6 files changed, 122 insertions(+), 20 deletions(-)

diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h
index 7f36d00600b43..feb988a7ec37d 100644
--- a/arch/arm/include/asm/highmem.h
+++ b/arch/arm/include/asm/highmem.h
@@ -11,7 +11,11 @@
 
 #define kmap_prot		PAGE_KERNEL
 
-#define flush_cache_kmaps()	flush_cache_all()
+#define flush_cache_kmaps() \
+	do { \
+		if (cache_is_vivt()) \
+			flush_cache_all(); \
+	} while (0)
 
 extern pte_t *pkmap_page_table;
 
@@ -21,11 +25,20 @@ extern void *kmap_high(struct page *page);
 extern void *kmap_high_get(struct page *page);
 extern void kunmap_high(struct page *page);
 
+extern void *kmap_high_l1_vipt(struct page *page, pte_t *saved_pte);
+extern void kunmap_high_l1_vipt(struct page *page, pte_t saved_pte);
+
+/*
+ * The following functions are already defined by <linux/highmem.h>
+ * when CONFIG_HIGHMEM is not set.
+ */
+#ifdef CONFIG_HIGHMEM
 extern void *kmap(struct page *page);
 extern void kunmap(struct page *page);
 extern void *kmap_atomic(struct page *page, enum km_type type);
 extern void kunmap_atomic(void *kvaddr, enum km_type type);
 extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
 extern struct page *kmap_atomic_to_page(const void *ptr);
+#endif
 
 #endif
diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
index c019949a5189d..c4b2ea3fbe424 100644
--- a/arch/arm/include/asm/kmap_types.h
+++ b/arch/arm/include/asm/kmap_types.h
@@ -18,6 +18,7 @@ enum km_type {
 	KM_IRQ1,
 	KM_SOFTIRQ0,
 	KM_SOFTIRQ1,
+	KM_L1_CACHE,
 	KM_L2_CACHE,
 	KM_TYPE_NR
 };
diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c
index 8bca4dea6dfa2..f55fa1044f72b 100644
--- a/arch/arm/mm/copypage-v6.c
+++ b/arch/arm/mm/copypage-v6.c
@@ -41,14 +41,7 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to,
 	kfrom = kmap_atomic(from, KM_USER0);
 	kto = kmap_atomic(to, KM_USER1);
 	copy_page(kto, kfrom);
-#ifdef CONFIG_HIGHMEM
-	/*
-	 * kmap_atomic() doesn't set the page virtual address, and
-	 * kunmap_atomic() takes care of cache flushing already.
-	 */
-	if (page_address(to) != NULL)
-#endif
-		__cpuc_flush_dcache_area(kto, PAGE_SIZE);
+	__cpuc_flush_dcache_area(kto, PAGE_SIZE);
 	kunmap_atomic(kto, KM_USER1);
 	kunmap_atomic(kfrom, KM_USER0);
 }
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 1351edc0b26fe..13fa536d82e69 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -464,6 +464,11 @@ static void dma_cache_maint_page(struct page *page, unsigned long offset,
 				vaddr += offset;
 				op(vaddr, len, dir);
 				kunmap_high(page);
+			} else if (cache_is_vipt()) {
+				pte_t saved_pte;
+				vaddr = kmap_high_l1_vipt(page, &saved_pte);
+				op(vaddr + offset, len, dir);
+				kunmap_high_l1_vipt(page, saved_pte);
 			}
 		} else {
 			vaddr = page_address(page) + offset;
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index e34f095e20905..c6844cb9b508d 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -13,6 +13,7 @@
 
 #include <asm/cacheflush.h>
 #include <asm/cachetype.h>
+#include <asm/highmem.h>
 #include <asm/smp_plat.h>
 #include <asm/system.h>
 #include <asm/tlbflush.h>
@@ -152,21 +153,25 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
 
 void __flush_dcache_page(struct address_space *mapping, struct page *page)
 {
-	void *addr = page_address(page);
-
 	/*
 	 * Writeback any data associated with the kernel mapping of this
 	 * page.  This ensures that data in the physical page is mutually
 	 * coherent with the kernels mapping.
 	 */
-#ifdef CONFIG_HIGHMEM
-	/*
-	 * kmap_atomic() doesn't set the page virtual address, and
-	 * kunmap_atomic() takes care of cache flushing already.
-	 */
-	if (addr)
-#endif
-		__cpuc_flush_dcache_area(addr, PAGE_SIZE);
+	if (!PageHighMem(page)) {
+		__cpuc_flush_dcache_area(page_address(page), PAGE_SIZE);
+	} else {
+		void *addr = kmap_high_get(page);
+		if (addr) {
+			__cpuc_flush_dcache_area(addr, PAGE_SIZE);
+			kunmap_high(page);
+		} else if (cache_is_vipt()) {
+			pte_t saved_pte;
+			addr = kmap_high_l1_vipt(page, &saved_pte);
+			__cpuc_flush_dcache_area(addr, PAGE_SIZE);
+			kunmap_high_l1_vipt(page, saved_pte);
+		}
+	}
 
 	/*
 	 * If this is a page cache page, and we have an aliasing VIPT cache,
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
index 2be1ec7c1b41a..77b030f5ec09f 100644
--- a/arch/arm/mm/highmem.c
+++ b/arch/arm/mm/highmem.c
@@ -79,7 +79,8 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
 	unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
 
 	if (kvaddr >= (void *)FIXADDR_START) {
-		__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
+		if (cache_is_vivt())
+			__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
 #ifdef CONFIG_DEBUG_HIGHMEM
 		BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
 		set_pte_ext(TOP_PTE(vaddr), __pte(0), 0);
@@ -124,3 +125,87 @@ struct page *kmap_atomic_to_page(const void *ptr)
 	pte = TOP_PTE(vaddr);
 	return pte_page(*pte);
 }
+
+#ifdef CONFIG_CPU_CACHE_VIPT
+
+#include <linux/percpu.h>
+
+/*
+ * The VIVT cache of a highmem page is always flushed before the page
+ * is unmapped. Hence unmapped highmem pages need no cache maintenance
+ * in that case.
+ *
+ * However unmapped pages may still be cached with a VIPT cache, and
+ * it is not possible to perform cache maintenance on them using physical
+ * addresses unfortunately.  So we have no choice but to set up a temporary
+ * virtual mapping for that purpose.
+ *
+ * Yet this VIPT cache maintenance may be triggered from DMA support
+ * functions which are possibly called from interrupt context. As we don't
+ * want to keep interrupt disabled all the time when such maintenance is
+ * taking place, we therefore allow for some reentrancy by preserving and
+ * restoring the previous fixmap entry before the interrupted context is
+ * resumed.  If the reentrancy depth is 0 then there is no need to restore
+ * the previous fixmap, and leaving the current one in place allow it to
+ * be reused the next time without a TLB flush (common with DMA).
+ */
+
+static DEFINE_PER_CPU(int, kmap_high_l1_vipt_depth);
+
+void *kmap_high_l1_vipt(struct page *page, pte_t *saved_pte)
+{
+	unsigned int idx, cpu = smp_processor_id();
+	int *depth = &per_cpu(kmap_high_l1_vipt_depth, cpu);
+	unsigned long vaddr, flags;
+	pte_t pte, *ptep;
+
+	idx = KM_L1_CACHE + KM_TYPE_NR * cpu;
+	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+	ptep = TOP_PTE(vaddr);
+	pte = mk_pte(page, kmap_prot);
+
+	if (!in_interrupt())
+		preempt_disable();
+
+	raw_local_irq_save(flags);
+	(*depth)++;
+	if (pte_val(*ptep) == pte_val(pte)) {
+		*saved_pte = pte;
+	} else {
+		*saved_pte = *ptep;
+		set_pte_ext(ptep, pte, 0);
+		local_flush_tlb_kernel_page(vaddr);
+	}
+	raw_local_irq_restore(flags);
+
+	return (void *)vaddr;
+}
+
+void kunmap_high_l1_vipt(struct page *page, pte_t saved_pte)
+{
+	unsigned int idx, cpu = smp_processor_id();
+	int *depth = &per_cpu(kmap_high_l1_vipt_depth, cpu);
+	unsigned long vaddr, flags;
+	pte_t pte, *ptep;
+
+	idx = KM_L1_CACHE + KM_TYPE_NR * cpu;
+	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+	ptep = TOP_PTE(vaddr);
+	pte = mk_pte(page, kmap_prot);
+
+	BUG_ON(pte_val(*ptep) != pte_val(pte));
+	BUG_ON(*depth <= 0);
+
+	raw_local_irq_save(flags);
+	(*depth)--;
+	if (*depth != 0 && pte_val(pte) != pte_val(saved_pte)) {
+		set_pte_ext(ptep, saved_pte, 0);
+		local_flush_tlb_kernel_page(vaddr);
+	}
+	raw_local_irq_restore(flags);
+
+	if (!in_interrupt())
+		preempt_enable();
+}
+
+#endif  /* CONFIG_CPU_CACHE_VIPT */

From 5c5cac63851f347d8308d69f1892c4af51d7c1a4 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@nokia.com>
Date: Sun, 11 Apr 2010 15:57:07 +0100
Subject: [PATCH 157/464] ARM: 6050/1: VFP: fix the SMP versions of
 vfp_{sync,flush}_hwstate

From: Imre Deak <imre.deak@nokia.com>

Recently the UP versions of these functions were refactored and as
a side effect it became possible to call them for the current thread.
This isn't true for the SMP versions however, so fix this up.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/vfp/vfpmodule.c | 31 ++++++++++---------------------
 1 file changed, 10 insertions(+), 21 deletions(-)

diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index a420cb9493282..315a540c7ce50 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -428,26 +428,6 @@ static void vfp_pm_init(void)
 static inline void vfp_pm_init(void) { }
 #endif /* CONFIG_PM */
 
-/*
- * Synchronise the hardware VFP state of a thread other than current with the
- * saved one. This function is used by the ptrace mechanism.
- */
-#ifdef CONFIG_SMP
-void vfp_sync_hwstate(struct thread_info *thread)
-{
-}
-
-void vfp_flush_hwstate(struct thread_info *thread)
-{
-	/*
-	 * On SMP systems, the VFP state is automatically saved at every
-	 * context switch. We mark the thread VFP state as belonging to a
-	 * non-existent CPU so that the saved one will be reloaded when
-	 * needed.
-	 */
-	thread->vfpstate.hard.cpu = NR_CPUS;
-}
-#else
 void vfp_sync_hwstate(struct thread_info *thread)
 {
 	unsigned int cpu = get_cpu();
@@ -490,9 +470,18 @@ void vfp_flush_hwstate(struct thread_info *thread)
 		last_VFP_context[cpu] = NULL;
 	}
 
+#ifdef CONFIG_SMP
+	/*
+	 * For SMP we still have to take care of the case where the thread
+	 * migrates to another CPU and then back to the original CPU on which
+	 * the last VFP user is still the same thread. Mark the thread VFP
+	 * state as belonging to a non-existent CPU so that the saved one will
+	 * be reloaded in the above case.
+	 */
+	thread->vfpstate.hard.cpu = NR_CPUS;
+#endif
 	put_cpu();
 }
-#endif
 
 #include <linux/smp.h>
 

From 82c6f5a5b3e91ef4d2fb8725de4b8cf7affd4d61 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@nokia.com>
Date: Sun, 11 Apr 2010 15:58:27 +0100
Subject: [PATCH 158/464] ARM: 6051/1: VFP: preserve the HW context when
 calling signal handlers

From: Imre Deak <imre.deak@nokia.com>

Signal handlers can use floating point, so prevent them to corrupt
the main thread's VFP context. So far there were two signal stack
frame formats defined based on the VFP implementation, but the user
struct used for ptrace covers all posibilities, so use it for the
signal stack too.

Introduce also a new user struct for VFP exception registers. In
this too fields not relevant to the current VFP architecture are
ignored.

Support to save / restore the exception registers was added by
Will Deacon.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/ucontext.h | 23 ++++----
 arch/arm/include/asm/user.h     | 12 ++++-
 arch/arm/kernel/signal.c        | 93 +++++++++++++++++++++++++++++++--
 3 files changed, 111 insertions(+), 17 deletions(-)

diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h
index bf65e9f4525d0..47f023aa84958 100644
--- a/arch/arm/include/asm/ucontext.h
+++ b/arch/arm/include/asm/ucontext.h
@@ -59,23 +59,22 @@ struct iwmmxt_sigframe {
 #endif /* CONFIG_IWMMXT */
 
 #ifdef CONFIG_VFP
-#if __LINUX_ARM_ARCH__ < 6
-/* For ARM pre-v6, we use fstmiax and fldmiax.  This adds one extra
- * word after the registers, and a word of padding at the end for
- * alignment.  */
 #define VFP_MAGIC		0x56465001
-#define VFP_STORAGE_SIZE	152
-#else
-#define VFP_MAGIC		0x56465002
-#define VFP_STORAGE_SIZE	144
-#endif
 
 struct vfp_sigframe
 {
 	unsigned long		magic;
 	unsigned long		size;
-	union vfp_state		storage;
-};
+	struct user_vfp		ufp;
+	struct user_vfp_exc	ufp_exc;
+} __attribute__((__aligned__(8)));
+
+/*
+ *  8 byte for magic and size, 264 byte for ufp, 12 bytes for ufp_exc,
+ *  4 bytes padding.
+ */
+#define VFP_STORAGE_SIZE	sizeof(struct vfp_sigframe)
+
 #endif /* CONFIG_VFP */
 
 /*
@@ -91,7 +90,7 @@ struct aux_sigframe {
 #ifdef CONFIG_IWMMXT
 	struct iwmmxt_sigframe	iwmmxt;
 #endif
-#if 0 && defined CONFIG_VFP /* Not yet saved.  */
+#ifdef CONFIG_VFP
 	struct vfp_sigframe	vfp;
 #endif
 	/* Something that isn't a valid magic number for any coprocessor.  */
diff --git a/arch/arm/include/asm/user.h b/arch/arm/include/asm/user.h
index df95e050f9dd7..05ac4b06876a0 100644
--- a/arch/arm/include/asm/user.h
+++ b/arch/arm/include/asm/user.h
@@ -83,11 +83,21 @@ struct user{
 
 /*
  * User specific VFP registers. If only VFPv2 is present, registers 16 to 31
- * are ignored by the ptrace system call.
+ * are ignored by the ptrace system call and the signal handler.
  */
 struct user_vfp {
 	unsigned long long fpregs[32];
 	unsigned long fpscr;
 };
 
+/*
+ * VFP exception registers exposed to user space during signal delivery.
+ * Fields not relavant to the current VFP architecture are ignored.
+ */
+struct user_vfp_exc {
+	unsigned long	fpexc;
+	unsigned long	fpinst;
+	unsigned long	fpinst2;
+};
+
 #endif /* _ARM_USER_H */
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index e7714f367eb83..907d5a620bca2 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -18,6 +18,7 @@
 #include <asm/cacheflush.h>
 #include <asm/ucontext.h>
 #include <asm/unistd.h>
+#include <asm/vfp.h>
 
 #include "ptrace.h"
 #include "signal.h"
@@ -175,6 +176,90 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
 
 #endif
 
+#ifdef CONFIG_VFP
+
+static int preserve_vfp_context(struct vfp_sigframe __user *frame)
+{
+	struct thread_info *thread = current_thread_info();
+	struct vfp_hard_struct *h = &thread->vfpstate.hard;
+	const unsigned long magic = VFP_MAGIC;
+	const unsigned long size = VFP_STORAGE_SIZE;
+	int err = 0;
+
+	vfp_sync_hwstate(thread);
+	__put_user_error(magic, &frame->magic, err);
+	__put_user_error(size, &frame->size, err);
+
+	/*
+	 * Copy the floating point registers. There can be unused
+	 * registers see asm/hwcap.h for details.
+	 */
+	err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs,
+			      sizeof(h->fpregs));
+	/*
+	 * Copy the status and control register.
+	 */
+	__put_user_error(h->fpscr, &frame->ufp.fpscr, err);
+
+	/*
+	 * Copy the exception registers.
+	 */
+	__put_user_error(h->fpexc, &frame->ufp_exc.fpexc, err);
+	__put_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
+	__put_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
+
+	return err ? -EFAULT : 0;
+}
+
+static int restore_vfp_context(struct vfp_sigframe __user *frame)
+{
+	struct thread_info *thread = current_thread_info();
+	struct vfp_hard_struct *h = &thread->vfpstate.hard;
+	unsigned long magic;
+	unsigned long size;
+	unsigned long fpexc;
+	int err = 0;
+
+	__get_user_error(magic, &frame->magic, err);
+	__get_user_error(size, &frame->size, err);
+
+	if (err)
+		return -EFAULT;
+	if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
+		return -EINVAL;
+
+	/*
+	 * Copy the floating point registers. There can be unused
+	 * registers see asm/hwcap.h for details.
+	 */
+	err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs,
+				sizeof(h->fpregs));
+	/*
+	 * Copy the status and control register.
+	 */
+	__get_user_error(h->fpscr, &frame->ufp.fpscr, err);
+
+	/*
+	 * Sanitise and restore the exception registers.
+	 */
+	__get_user_error(fpexc, &frame->ufp_exc.fpexc, err);
+	/* Ensure the VFP is enabled. */
+	fpexc |= FPEXC_EN;
+	/* Ensure FPINST2 is invalid and the exception flag is cleared. */
+	fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
+	h->fpexc = fpexc;
+
+	__get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
+	__get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
+
+	if (!err)
+		vfp_flush_hwstate(thread);
+
+	return err ? -EFAULT : 0;
+}
+
+#endif
+
 /*
  * Do a signal return; undo the signal stack.  These are aligned to 64-bit.
  */
@@ -233,8 +318,8 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
 		err |= restore_iwmmxt_context(&aux->iwmmxt);
 #endif
 #ifdef CONFIG_VFP
-//	if (err == 0)
-//		err |= vfp_restore_state(&sf->aux.vfp);
+	if (err == 0)
+		err |= restore_vfp_context(&aux->vfp);
 #endif
 
 	return err;
@@ -348,8 +433,8 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
 		err |= preserve_iwmmxt_context(&aux->iwmmxt);
 #endif
 #ifdef CONFIG_VFP
-//	if (err == 0)
-//		err |= vfp_save_state(&sf->aux.vfp);
+	if (err == 0)
+		err |= preserve_vfp_context(&aux->vfp);
 #endif
 	__put_user_error(0, &aux->end_magic, err);
 

From 3f2d4f561fab4588344cc519fd323382ab950928 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@iki.fi>
Date: Tue, 13 Apr 2010 07:01:46 +0100
Subject: [PATCH 159/464] ARM: 6052/1: kdump: make kexec work in interrupt
 context

When crash happens in interrupt context there is no userspace context.
We always use current->active_mm in those cases.

Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/mmu.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 4223d086aa176..241c24a1c18f3 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1054,10 +1054,12 @@ void setup_mm_for_reboot(char mode)
 	pgd_t *pgd;
 	int i;
 
-	if (current->mm && current->mm->pgd)
-		pgd = current->mm->pgd;
-	else
-		pgd = init_mm.pgd;
+	/*
+	 * We need to access to user-mode page tables here. For kernel threads
+	 * we don't have any user-mode mappings so we use the context that we
+	 * "borrowed".
+	 */
+	pgd = current->active_mm->pgd;
 
 	base_pmdval = PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT;
 	if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale())

From b62730baea32f86fe91a7930e4b7ee8d82778b79 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 9 Apr 2010 15:39:10 -0700
Subject: [PATCH 160/464] rcu: Add rcu_access_pointer and
 rcu_dereference_protected

This patch adds variants of rcu_dereference() that handle
situations where the RCU-protected data structure cannot change,
perhaps due to our holding the update-side lock, or where the
RCU-protected pointer is only to be fetched, not dereferenced.
These are needed due to some performance concerns with using
rcu_dereference() where it is not required, aside from the need
for lockdep/sparse checking.

The new rcu_access_pointer() primitive is for the case where the
pointer is be fetch and not dereferenced.  This primitive may be
used without protection, RCU or otherwise, due to the fact that
it uses ACCESS_ONCE().

The new rcu_dereference_protected() primitive is for the case
where updates are prevented, for example, due to holding the
update-side lock.  This primitive does neither ACCESS_ONCE() nor
smp_read_barrier_depends(), so can only be used when updates are
somehow prevented.

Suggested-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <1270852752-25278-1-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/rcupdate.h | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 872a98e13d6ab..8fe86609441f6 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -209,12 +209,44 @@ static inline int rcu_read_lock_sched_held(void)
 		rcu_dereference_raw(p); \
 	})
 
+/**
+ * rcu_dereference_protected - fetch RCU pointer when updates prevented
+ *
+ * Return the value of the specified RCU-protected pointer, but omit
+ * both the smp_read_barrier_depends() and the ACCESS_ONCE().  This
+ * is useful in cases where update-side locks prevent the value of the
+ * pointer from changing.  Please note that this primitive does -not-
+ * prevent the compiler from repeating this reference or combining it
+ * with other references, so it should not be used without protection
+ * of appropriate locks.
+ */
+#define rcu_dereference_protected(p, c) \
+	({ \
+		if (debug_lockdep_rcu_enabled() && !(c)) \
+			lockdep_rcu_dereference(__FILE__, __LINE__); \
+		(p); \
+	})
+
 #else /* #ifdef CONFIG_PROVE_RCU */
 
 #define rcu_dereference_check(p, c)	rcu_dereference_raw(p)
+#define rcu_dereference_protected(p, c) (p)
 
 #endif /* #else #ifdef CONFIG_PROVE_RCU */
 
+/**
+ * rcu_access_pointer - fetch RCU pointer with no dereferencing
+ *
+ * Return the value of the specified RCU-protected pointer, but omit the
+ * smp_read_barrier_depends() and keep the ACCESS_ONCE().  This is useful
+ * when the value of this pointer is accessed, but the pointer is not
+ * dereferenced, for example, when testing an RCU-protected pointer against
+ * NULL.  This may also be used in cases where update-side locks prevent
+ * the value of the pointer from changing, but rcu_dereference_protected()
+ * is a lighter-weight primitive for this use case.
+ */
+#define rcu_access_pointer(p)	ACCESS_ONCE(p)
+
 /**
  * rcu_read_lock - mark the beginning of an RCU read-side critical section.
  *

From c08c68dd76bd6b776bc0eb45a5e8f354ed772cdf Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 9 Apr 2010 15:39:11 -0700
Subject: [PATCH 161/464] rcu: Better explain the condition parameter of
 rcu_dereference_check()

Better explain the condition parameter of
rcu_dereference_check() that describes the conditions under
which the dereference is permitted to take place (and
incorporate Yong Zhang's suggestion).  This condition is only
checked under lockdep proving.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: eric.dumazet@gmail.com
LKML-Reference: <1270852752-25278-2-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/rcupdate.h | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 8fe86609441f6..9f1ddfef84b50 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -195,12 +195,30 @@ static inline int rcu_read_lock_sched_held(void)
 
 /**
  * rcu_dereference_check - rcu_dereference with debug checking
+ * @p: The pointer to read, prior to dereferencing
+ * @c: The conditions under which the dereference will take place
  *
- * Do an rcu_dereference(), but check that the context is correct.
- * For example, rcu_dereference_check(gp, rcu_read_lock_held()) to
- * ensure that the rcu_dereference_check() executes within an RCU
- * read-side critical section.  It is also possible to check for
- * locks being held, for example, by using lockdep_is_held().
+ * Do an rcu_dereference(), but check that the conditions under which the
+ * dereference will take place are correct.  Typically the conditions indicate
+ * the various locking conditions that should be held at that point.  The check
+ * should return true if the conditions are satisfied.
+ *
+ * For example:
+ *
+ *	bar = rcu_dereference_check(foo->bar, rcu_read_lock_held() ||
+ *					      lockdep_is_held(&foo->lock));
+ *
+ * could be used to indicate to lockdep that foo->bar may only be dereferenced
+ * if either the RCU read lock is held, or that the lock required to replace
+ * the bar struct at foo->bar is held.
+ *
+ * Note that the list of conditions may also include indications of when a lock
+ * need not be held, for example during initialisation or destruction of the
+ * target struct:
+ *
+ *	bar = rcu_dereference_check(foo->bar, rcu_read_lock_held() ||
+ *					      lockdep_is_held(&foo->lock) ||
+ *					      atomic_read(&foo->usage) == 0);
  */
 #define rcu_dereference_check(p, c) \
 	({ \

From 50aec0024eccb1d5f540ab64a1958eebcdb9340c Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 9 Apr 2010 15:39:12 -0700
Subject: [PATCH 162/464] rcu: Update docs for rcu_access_pointer and
 rcu_dereference_protected

Update examples and lists of APIs to include these new
primitives.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <1270852752-25278-3-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 Documentation/RCU/NMI-RCU.txt   | 39 +++++++++++++++++++--------------
 Documentation/RCU/checklist.txt |  7 +++---
 Documentation/RCU/lockdep.txt   | 28 +++++++++++++++++++++--
 Documentation/RCU/whatisRCU.txt |  6 +++++
 4 files changed, 58 insertions(+), 22 deletions(-)

diff --git a/Documentation/RCU/NMI-RCU.txt b/Documentation/RCU/NMI-RCU.txt
index a6d32e65d222b..a8536cb880917 100644
--- a/Documentation/RCU/NMI-RCU.txt
+++ b/Documentation/RCU/NMI-RCU.txt
@@ -34,7 +34,7 @@ NMI handler.
 		cpu = smp_processor_id();
 		++nmi_count(cpu);
 
-		if (!rcu_dereference(nmi_callback)(regs, cpu))
+		if (!rcu_dereference_sched(nmi_callback)(regs, cpu))
 			default_do_nmi(regs);
 
 		nmi_exit();
@@ -47,12 +47,13 @@ function pointer.  If this handler returns zero, do_nmi() invokes the
 default_do_nmi() function to handle a machine-specific NMI.  Finally,
 preemption is restored.
 
-Strictly speaking, rcu_dereference() is not needed, since this code runs
-only on i386, which does not need rcu_dereference() anyway.  However,
-it is a good documentation aid, particularly for anyone attempting to
-do something similar on Alpha.
+In theory, rcu_dereference_sched() is not needed, since this code runs
+only on i386, which in theory does not need rcu_dereference_sched()
+anyway.  However, in practice it is a good documentation aid, particularly
+for anyone attempting to do something similar on Alpha or on systems
+with aggressive optimizing compilers.
 
-Quick Quiz:  Why might the rcu_dereference() be necessary on Alpha,
+Quick Quiz:  Why might the rcu_dereference_sched() be necessary on Alpha,
 	     given that the code referenced by the pointer is read-only?
 
 
@@ -99,17 +100,21 @@ invoke irq_enter() and irq_exit() on NMI entry and exit, respectively.
 
 Answer to Quick Quiz
 
-	Why might the rcu_dereference() be necessary on Alpha, given
+	Why might the rcu_dereference_sched() be necessary on Alpha, given
 	that the code referenced by the pointer is read-only?
 
 	Answer: The caller to set_nmi_callback() might well have
-		initialized some data that is to be used by the
-		new NMI handler.  In this case, the rcu_dereference()
-		would be needed, because otherwise a CPU that received
-		an NMI just after the new handler was set might see
-		the pointer to the new NMI handler, but the old
-		pre-initialized version of the handler's data.
-
-		More important, the rcu_dereference() makes it clear
-		to someone reading the code that the pointer is being
-		protected by RCU.
+		initialized some data that is to be used by the new NMI
+		handler.  In this case, the rcu_dereference_sched() would
+		be needed, because otherwise a CPU that received an NMI
+		just after the new handler was set might see the pointer
+		to the new NMI handler, but the old pre-initialized
+		version of the handler's data.
+
+		This same sad story can happen on other CPUs when using
+		a compiler with aggressive pointer-value speculation
+		optimizations.
+
+		More important, the rcu_dereference_sched() makes it
+		clear to someone reading the code that the pointer is
+		being protected by RCU-sched.
diff --git a/Documentation/RCU/checklist.txt b/Documentation/RCU/checklist.txt
index cbc180f90194f..790d1a8123760 100644
--- a/Documentation/RCU/checklist.txt
+++ b/Documentation/RCU/checklist.txt
@@ -260,7 +260,8 @@ over a rather long period of time, but improvements are always welcome!
 	The reason that it is permissible to use RCU list-traversal
 	primitives when the update-side lock is held is that doing so
 	can be quite helpful in reducing code bloat when common code is
-	shared between readers and updaters.
+	shared between readers and updaters.  Additional primitives
+	are provided for this case, as discussed in lockdep.txt.
 
 10.	Conversely, if you are in an RCU read-side critical section,
 	and you don't hold the appropriate update-side lock, you -must-
@@ -344,8 +345,8 @@ over a rather long period of time, but improvements are always welcome!
 	requiring SRCU's read-side deadlock immunity or low read-side
 	realtime latency.
 
-	Note that, rcu_assign_pointer() and rcu_dereference() relate to
-	SRCU just as they do to other forms of RCU.
+	Note that, rcu_assign_pointer() relates to SRCU just as they do
+	to other forms of RCU.
 
 15.	The whole point of call_rcu(), synchronize_rcu(), and friends
 	is to wait until all pre-existing readers have finished before
diff --git a/Documentation/RCU/lockdep.txt b/Documentation/RCU/lockdep.txt
index fe24b58627bdd..d7a49b2f6994c 100644
--- a/Documentation/RCU/lockdep.txt
+++ b/Documentation/RCU/lockdep.txt
@@ -32,9 +32,20 @@ checking of rcu_dereference() primitives:
 	srcu_dereference(p, sp):
 		Check for SRCU read-side critical section.
 	rcu_dereference_check(p, c):
-		Use explicit check expression "c".
+		Use explicit check expression "c".  This is useful in
+		code that is invoked by both readers and updaters.
 	rcu_dereference_raw(p)
 		Don't check.  (Use sparingly, if at all.)
+	rcu_dereference_protected(p, c):
+		Use explicit check expression "c", and omit all barriers
+		and compiler constraints.  This is useful when the data
+		structure cannot change, for example, in code that is
+		invoked only by updaters.
+	rcu_access_pointer(p):
+		Return the value of the pointer and omit all barriers,
+		but retain the compiler constraints that prevent duplicating
+		or coalescsing.  This is useful when when testing the
+		value of the pointer itself, for example, against NULL.
 
 The rcu_dereference_check() check expression can be any boolean
 expression, but would normally include one of the rcu_read_lock_held()
@@ -59,7 +70,20 @@ In case (1), the pointer is picked up in an RCU-safe manner for vanilla
 RCU read-side critical sections, in case (2) the ->file_lock prevents
 any change from taking place, and finally, in case (3) the current task
 is the only task accessing the file_struct, again preventing any change
-from taking place.
+from taking place.  If the above statement was invoked only from updater
+code, it could instead be written as follows:
+
+	file = rcu_dereference_protected(fdt->fd[fd],
+					 lockdep_is_held(&files->file_lock) ||
+					 atomic_read(&files->count) == 1);
+
+This would verify cases #2 and #3 above, and furthermore lockdep would
+complain if this was used in an RCU read-side critical section unless one
+of these two cases held.  Because rcu_dereference_protected() omits all
+barriers and compiler constraints, it generates better code than do the
+other flavors of rcu_dereference().  On the other hand, it is illegal
+to use rcu_dereference_protected() if either the RCU-protected pointer
+or the RCU-protected data that it points to can change concurrently.
 
 There are currently only "universal" versions of the rcu_assign_pointer()
 and RCU list-/tree-traversal primitives, which do not (yet) check for
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index 1dc00ee971632..cfaac34c4557b 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.txt
@@ -840,6 +840,12 @@ SRCU:	Initialization/cleanup
 	init_srcu_struct
 	cleanup_srcu_struct
 
+All:  lockdep-checked RCU-protected pointer access
+
+	rcu_dereference_check
+	rcu_dereference_protected
+	rcu_access_pointer
+
 See the comment headers in the source code (or the docbook generated
 from them) for more information.
 

From b1cdbb5f8342d99b732c5535ee7d2de8e7b2cc2e Mon Sep 17 00:00:00 2001
From: Ernst Schwab <linuxdev@gik.de>
Date: Thu, 4 Mar 2010 10:15:39 +0100
Subject: [PATCH 163/464] ARM: 5974/1: arm/mach-at91 Makefile: remove two
 blanks.

Cosmetic change to mach-at91 Makefile: remove two blanks introduced
by earlier patches.

Signed-off-by: Ernst Schwab <eschwab@online.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-at91/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 027dd570dcc30..d4004557532af 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -16,8 +16,8 @@ obj-$(CONFIG_ARCH_AT91SAM9261)	+= at91sam9261.o at91sam926x_time.o at91sam9261_d
 obj-$(CONFIG_ARCH_AT91SAM9G10)	+= at91sam9261.o at91sam926x_time.o at91sam9261_devices.o sam9_smc.o
 obj-$(CONFIG_ARCH_AT91SAM9263)	+= at91sam9263.o at91sam926x_time.o at91sam9263_devices.o sam9_smc.o
 obj-$(CONFIG_ARCH_AT91SAM9RL)	+= at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o sam9_smc.o
-obj-$(CONFIG_ARCH_AT91SAM9G20)	+= at91sam9260.o at91sam926x_time.o at91sam9260_devices.o  sam9_smc.o
- obj-$(CONFIG_ARCH_AT91SAM9G45)	+= at91sam9g45.o at91sam926x_time.o at91sam9g45_devices.o sam9_smc.o
+obj-$(CONFIG_ARCH_AT91SAM9G20)	+= at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o
+obj-$(CONFIG_ARCH_AT91SAM9G45)	+= at91sam9g45.o at91sam926x_time.o at91sam9g45_devices.o sam9_smc.o
 obj-$(CONFIG_ARCH_AT91CAP9)	+= at91cap9.o at91sam926x_time.o at91cap9_devices.o sam9_smc.o
 obj-$(CONFIG_ARCH_AT572D940HF)  += at572d940hf.o at91sam926x_time.o at572d940hf_devices.o sam9_smc.o
 obj-$(CONFIG_ARCH_AT91X40)	+= at91x40.o at91x40_time.o

From 0110d6f22f392f976e84ab49da1b42f85b64a3c5 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 13 Apr 2010 04:59:44 +0000
Subject: [PATCH 164/464] tun: orphan an skb on tx

The following situation was observed in the field:
tap1 sends packets, tap2 does not consume them, as a result
tap1 can not be closed. This happens because
tun/tap devices can hang on to skbs undefinitely.

As noted by Herbert, possible solutions include a timeout followed by a
copy/change of ownership of the skb, or always copying/changing
ownership if we're going into a hostile device.

This patch implements the second approach.

Note: one issue still remaining is that since skbs
keep reference to tun socket and tun socket has a
reference to tun device, we won't flush backlog,
instead simply waiting for all skbs to get transmitted.
At least this is not user-triggerable, and
this was not reported in practice, my assumption is
other devices besides tap complete an skb
within finite time after it has been queued.

A possible solution for the second issue
would not to have socket reference the device,
instead, implement dev->destructor for tun, and
wait for all skbs to complete there, but this
needs some thought, probably too risky for 2.6.34.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Yan Vugenfirer <yvugenfi@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/tun.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 96c39bddc78c0..43265207d4637 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -387,6 +387,10 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 	}
 
+	/* Orphan the skb - required as we might hang on to it
+	 * for indefinite time. */
+	skb_orphan(skb);
+
 	/* Enqueue packet */
 	skb_queue_tail(&tun->socket.sk->sk_receive_queue, skb);
 	dev->trans_start = jiffies;

From 5094aeafbbd500509f648e3cd102b053bc7926b3 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 14 Apr 2010 21:43:53 -0600
Subject: [PATCH 165/464] lguest: workaround cmpxchg8b_emu by ignoring cli in
 the guest.

It's only used by cmpxchg8b_emu (see db677ffa5f5a for the gory
details), and fixing that to be paravirt aware would be more work than
simply ignoring it (and AFAICT only help lguest).  This makes lguest
work on machines which have cmpxchg8b, for kernels compiled for older
processors.

(We can't emulate it properly: the popf which expects to restore interrupts
does not trap).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: virtualization@lists.osdl.org
---
 drivers/lguest/x86/core.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index fb2b7ef7868ef..b4eb675a807e6 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -287,6 +287,18 @@ static int emulate_insn(struct lg_cpu *cpu)
 	/* Decoding x86 instructions is icky. */
 	insn = lgread(cpu, physaddr, u8);
 
+	/*
+	 * Around 2.6.33, the kernel started using an emulation for the
+	 * cmpxchg8b instruction in early boot on many configurations.  This
+	 * code isn't paravirtualized, and it tries to disable interrupts.
+	 * Ignore it, which will Mostly Work.
+	 */
+	if (insn == 0xfa) {
+		/* "cli", or Clear Interrupt Enable instruction.  Skip it. */
+		cpu->regs->eip++;
+		return 1;
+	}
+
 	/*
 	 * 0x66 is an "operand prefix".  It means it's using the upper 16 bits
 	 * of the eax register.

From 091ebf07a2408f9a56634caa0f86d9360e9af23b Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 14 Apr 2010 21:43:54 -0600
Subject: [PATCH 166/464] lguest: stop using KVM hypercall mechanism

This is a partial revert of 4cd8b5e2a159 "lguest: use KVM hypercalls";
we revert to using (just as questionable but more reliable) int $15 for
hypercalls.  I didn't revert the register mapping, so we still use the
same calling convention as kvm.

KVM in more recent incarnations stopped injecting a fault when a guest
tried to use the VMCALL instruction from ring 1, so lguest under kvm
fails to make hypercalls.  It was nice to share code with our KVM
cousins, but this was overreach.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Matias Zabaljauregui <zabaljauregui@gmail.com>
Cc: Avi Kivity <avi@redhat.com>
---
 arch/x86/include/asm/lguest_hcall.h | 29 +++++++++++---
 arch/x86/lguest/boot.c              | 61 ++++++++++++++---------------
 arch/x86/lguest/i386_head.S         |  2 +-
 drivers/lguest/lguest_device.c      |  4 +-
 4 files changed, 56 insertions(+), 40 deletions(-)

diff --git a/arch/x86/include/asm/lguest_hcall.h b/arch/x86/include/asm/lguest_hcall.h
index ba0eed8aa1a6d..b60f2924c4131 100644
--- a/arch/x86/include/asm/lguest_hcall.h
+++ b/arch/x86/include/asm/lguest_hcall.h
@@ -28,22 +28,39 @@
 
 #ifndef __ASSEMBLY__
 #include <asm/hw_irq.h>
-#include <asm/kvm_para.h>
 
 /*G:030
  * But first, how does our Guest contact the Host to ask for privileged
  * operations?  There are two ways: the direct way is to make a "hypercall",
  * to make requests of the Host Itself.
  *
- * We use the KVM hypercall mechanism, though completely different hypercall
- * numbers. Seventeen hypercalls are available: the hypercall number is put in
- * the %eax register, and the arguments (when required) are placed in %ebx,
- * %ecx, %edx and %esi.  If a return value makes sense, it's returned in %eax.
+ * Our hypercall mechanism uses the highest unused trap code (traps 32 and
+ * above are used by real hardware interrupts).  Seventeen hypercalls are
+ * available: the hypercall number is put in the %eax register, and the
+ * arguments (when required) are placed in %ebx, %ecx, %edx and %esi.
+ * If a return value makes sense, it's returned in %eax.
  *
  * Grossly invalid calls result in Sudden Death at the hands of the vengeful
  * Host, rather than returning failure.  This reflects Winston Churchill's
  * definition of a gentleman: "someone who is only rude intentionally".
-:*/
+ */
+static inline unsigned long
+hcall(unsigned long call,
+      unsigned long arg1, unsigned long arg2, unsigned long arg3,
+      unsigned long arg4)
+{
+	/* "int" is the Intel instruction to trigger a trap. */
+	asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY)
+		     /* The call in %eax (aka "a") might be overwritten */
+		     : "=a"(call)
+		       /* The arguments are in %eax, %ebx, %ecx, %edx & %esi */
+		     : "a"(call), "b"(arg1), "c"(arg2), "d"(arg3), "S"(arg4)
+		       /* "memory" means this might write somewhere in memory.
+			* This isn't true for all calls, but it's safe to tell
+			* gcc that it might happen so it doesn't get clever. */
+		     : "memory");
+	return call;
+}
 
 /* Can't use our min() macro here: needs to be a constant */
 #define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 7e59dc1d3fc2f..2bdf628066bd8 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -115,7 +115,7 @@ static void async_hcall(unsigned long call, unsigned long arg1,
 	local_irq_save(flags);
 	if (lguest_data.hcall_status[next_call] != 0xFF) {
 		/* Table full, so do normal hcall which will flush table. */
-		kvm_hypercall4(call, arg1, arg2, arg3, arg4);
+		hcall(call, arg1, arg2, arg3, arg4);
 	} else {
 		lguest_data.hcalls[next_call].arg0 = call;
 		lguest_data.hcalls[next_call].arg1 = arg1;
@@ -145,46 +145,45 @@ static void async_hcall(unsigned long call, unsigned long arg1,
  * So, when we're in lazy mode, we call async_hcall() to store the call for
  * future processing:
  */
-static void lazy_hcall1(unsigned long call,
-		       unsigned long arg1)
+static void lazy_hcall1(unsigned long call, unsigned long arg1)
 {
 	if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
-		kvm_hypercall1(call, arg1);
+		hcall(call, arg1, 0, 0, 0);
 	else
 		async_hcall(call, arg1, 0, 0, 0);
 }
 
 /* You can imagine what lazy_hcall2, 3 and 4 look like. :*/
 static void lazy_hcall2(unsigned long call,
-		       unsigned long arg1,
-		       unsigned long arg2)
+			unsigned long arg1,
+			unsigned long arg2)
 {
 	if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
-		kvm_hypercall2(call, arg1, arg2);
+		hcall(call, arg1, arg2, 0, 0);
 	else
 		async_hcall(call, arg1, arg2, 0, 0);
 }
 
 static void lazy_hcall3(unsigned long call,
-		       unsigned long arg1,
-		       unsigned long arg2,
-		       unsigned long arg3)
+			unsigned long arg1,
+			unsigned long arg2,
+			unsigned long arg3)
 {
 	if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
-		kvm_hypercall3(call, arg1, arg2, arg3);
+		hcall(call, arg1, arg2, arg3, 0);
 	else
 		async_hcall(call, arg1, arg2, arg3, 0);
 }
 
 #ifdef CONFIG_X86_PAE
 static void lazy_hcall4(unsigned long call,
-		       unsigned long arg1,
-		       unsigned long arg2,
-		       unsigned long arg3,
-		       unsigned long arg4)
+			unsigned long arg1,
+			unsigned long arg2,
+			unsigned long arg3,
+			unsigned long arg4)
 {
 	if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
-		kvm_hypercall4(call, arg1, arg2, arg3, arg4);
+		hcall(call, arg1, arg2, arg3, arg4);
 	else
 		async_hcall(call, arg1, arg2, arg3, arg4);
 }
@@ -196,13 +195,13 @@ static void lazy_hcall4(unsigned long call,
 :*/
 static void lguest_leave_lazy_mmu_mode(void)
 {
-	kvm_hypercall0(LHCALL_FLUSH_ASYNC);
+	hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0, 0);
 	paravirt_leave_lazy_mmu();
 }
 
 static void lguest_end_context_switch(struct task_struct *next)
 {
-	kvm_hypercall0(LHCALL_FLUSH_ASYNC);
+	hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0, 0);
 	paravirt_end_context_switch(next);
 }
 
@@ -286,7 +285,7 @@ static void lguest_write_idt_entry(gate_desc *dt,
 	/* Keep the local copy up to date. */
 	native_write_idt_entry(dt, entrynum, g);
 	/* Tell Host about this new entry. */
-	kvm_hypercall3(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1]);
+	hcall(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1], 0);
 }
 
 /*
@@ -300,7 +299,7 @@ static void lguest_load_idt(const struct desc_ptr *desc)
 	struct desc_struct *idt = (void *)desc->address;
 
 	for (i = 0; i < (desc->size+1)/8; i++)
-		kvm_hypercall3(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b);
+		hcall(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b, 0);
 }
 
 /*
@@ -321,7 +320,7 @@ static void lguest_load_gdt(const struct desc_ptr *desc)
 	struct desc_struct *gdt = (void *)desc->address;
 
 	for (i = 0; i < (desc->size+1)/8; i++)
-		kvm_hypercall3(LHCALL_LOAD_GDT_ENTRY, i, gdt[i].a, gdt[i].b);
+		hcall(LHCALL_LOAD_GDT_ENTRY, i, gdt[i].a, gdt[i].b, 0);
 }
 
 /*
@@ -334,8 +333,8 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
 {
 	native_write_gdt_entry(dt, entrynum, desc, type);
 	/* Tell Host about this new entry. */
-	kvm_hypercall3(LHCALL_LOAD_GDT_ENTRY, entrynum,
-		       dt[entrynum].a, dt[entrynum].b);
+	hcall(LHCALL_LOAD_GDT_ENTRY, entrynum,
+	      dt[entrynum].a, dt[entrynum].b, 0);
 }
 
 /*
@@ -931,7 +930,7 @@ static int lguest_clockevent_set_next_event(unsigned long delta,
 	}
 
 	/* Please wake us this far in the future. */
-	kvm_hypercall1(LHCALL_SET_CLOCKEVENT, delta);
+	hcall(LHCALL_SET_CLOCKEVENT, delta, 0, 0, 0);
 	return 0;
 }
 
@@ -942,7 +941,7 @@ static void lguest_clockevent_set_mode(enum clock_event_mode mode,
 	case CLOCK_EVT_MODE_UNUSED:
 	case CLOCK_EVT_MODE_SHUTDOWN:
 		/* A 0 argument shuts the clock down. */
-		kvm_hypercall0(LHCALL_SET_CLOCKEVENT);
+		hcall(LHCALL_SET_CLOCKEVENT, 0, 0, 0, 0);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
 		/* This is what we expect. */
@@ -1100,7 +1099,7 @@ static void set_lguest_basic_apic_ops(void)
 /* STOP!  Until an interrupt comes in. */
 static void lguest_safe_halt(void)
 {
-	kvm_hypercall0(LHCALL_HALT);
+	hcall(LHCALL_HALT, 0, 0, 0, 0);
 }
 
 /*
@@ -1112,8 +1111,8 @@ static void lguest_safe_halt(void)
  */
 static void lguest_power_off(void)
 {
-	kvm_hypercall2(LHCALL_SHUTDOWN, __pa("Power down"),
-					LGUEST_SHUTDOWN_POWEROFF);
+	hcall(LHCALL_SHUTDOWN, __pa("Power down"),
+	      LGUEST_SHUTDOWN_POWEROFF, 0, 0);
 }
 
 /*
@@ -1123,7 +1122,7 @@ static void lguest_power_off(void)
  */
 static int lguest_panic(struct notifier_block *nb, unsigned long l, void *p)
 {
-	kvm_hypercall2(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF);
+	hcall(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF, 0, 0);
 	/* The hcall won't return, but to keep gcc happy, we're "done". */
 	return NOTIFY_DONE;
 }
@@ -1162,7 +1161,7 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
 		len = sizeof(scratch) - 1;
 	scratch[len] = '\0';
 	memcpy(scratch, buf, len);
-	kvm_hypercall1(LHCALL_NOTIFY, __pa(scratch));
+	hcall(LHCALL_NOTIFY, __pa(scratch), 0, 0, 0);
 
 	/* This routine returns the number of bytes actually written. */
 	return len;
@@ -1174,7 +1173,7 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
  */
 static void lguest_restart(char *reason)
 {
-	kvm_hypercall2(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART);
+	hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
 }
 
 /*G:050
diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S
index 27eac0faee48e..4f420c2f2d553 100644
--- a/arch/x86/lguest/i386_head.S
+++ b/arch/x86/lguest/i386_head.S
@@ -32,7 +32,7 @@ ENTRY(lguest_entry)
 	 */
 	movl $LHCALL_LGUEST_INIT, %eax
 	movl $lguest_data - __PAGE_OFFSET, %ebx
-	.byte 0x0f,0x01,0xc1 /* KVM_HYPERCALL */
+	int $LGUEST_TRAP_ENTRY
 
 	/* Set up the initial stack so we can run C code. */
 	movl $(init_thread_union+THREAD_SIZE),%esp
diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c
index 07090f379c63c..69c84a1d88ea9 100644
--- a/drivers/lguest/lguest_device.c
+++ b/drivers/lguest/lguest_device.c
@@ -178,7 +178,7 @@ static void set_status(struct virtio_device *vdev, u8 status)
 
 	/* We set the status. */
 	to_lgdev(vdev)->desc->status = status;
-	kvm_hypercall1(LHCALL_NOTIFY, (max_pfn << PAGE_SHIFT) + offset);
+	hcall(LHCALL_NOTIFY, (max_pfn << PAGE_SHIFT) + offset, 0, 0, 0);
 }
 
 static void lg_set_status(struct virtio_device *vdev, u8 status)
@@ -229,7 +229,7 @@ static void lg_notify(struct virtqueue *vq)
 	 */
 	struct lguest_vq_info *lvq = vq->priv;
 
-	kvm_hypercall1(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT);
+	hcall(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT, 0, 0, 0);
 }
 
 /* An extern declaration inside a C file is bad form.  Don't do it. */

From b331439dfd41dc813b3557ca5927a3a644f35792 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 14 Apr 2010 14:33:57 +0200
Subject: [PATCH 167/464] ALSA: hda - Fix control element allocations in VIA
 codec parser

The commit 5b0cb1d850c26893b1468b3a519433a1b7a176be
    ALSA: hda - add more NID->Control mapping
breaks the control element allocation by returning a wrong value.
Let's fix it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_via.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 9ddc37300f6b5..be1295438989c 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -476,7 +476,7 @@ static struct snd_kcontrol_new *via_clone_control(struct via_spec *spec,
 	knew->name = kstrdup(tmpl->name, GFP_KERNEL);
 	if (!knew->name)
 		return NULL;
-	return 0;
+	return knew;
 }
 
 static void via_free_kctls(struct hda_codec *codec)

From 3d83e577a8206f0f3822a3840e12f76477142ba2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 14 Apr 2010 14:36:23 +0200
Subject: [PATCH 168/464] ALSA: hda - Avoid invalid "Independent HP" control
 for VIA codecs

Some VIA codecs have no multiple source selection for headphone pins,
thus it's useless (and wrong) to create "Independent HP" control on them.

This patch adds the check of connections to skip the control in such a
case.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_via.c | 39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index be1295438989c..73453814e0987 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -1215,14 +1215,13 @@ static struct snd_kcontrol_new via_hp_mixer[2] = {
 	},
 };
 
-static int via_hp_build(struct via_spec *spec)
+static int via_hp_build(struct hda_codec *codec)
 {
+	struct via_spec *spec = codec->spec;
 	struct snd_kcontrol_new *knew;
 	hda_nid_t nid;
-
-	knew = via_clone_control(spec, &via_hp_mixer[0]);
-	if (knew == NULL)
-		return -ENOMEM;
+	int nums;
+	hda_nid_t conn[HDA_MAX_CONNECTIONS];
 
 	switch (spec->codec_type) {
 	case VT1718S:
@@ -1239,6 +1238,14 @@ static int via_hp_build(struct via_spec *spec)
 		break;
 	}
 
+	nums = snd_hda_get_connections(codec, nid, conn, HDA_MAX_CONNECTIONS);
+	if (nums <= 1)
+		return 0;
+
+	knew = via_clone_control(spec, &via_hp_mixer[0]);
+	if (knew == NULL)
+		return -ENOMEM;
+
 	knew->subdevice = HDA_SUBDEV_NID_FLAG | nid;
 	knew->private_value = nid;
 
@@ -2561,7 +2568,7 @@ static int vt1708_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	via_smart51_build(spec);
 	return 1;
@@ -3087,7 +3094,7 @@ static int vt1709_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	via_smart51_build(spec);
 	return 1;
@@ -3654,7 +3661,7 @@ static int vt1708B_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	via_smart51_build(spec);
 	return 1;
@@ -4140,7 +4147,7 @@ static int vt1708S_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	via_smart51_build(spec);
 	return 1;
@@ -4510,7 +4517,7 @@ static int vt1702_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	return 1;
 }
@@ -4930,7 +4937,7 @@ static int vt1718S_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	via_smart51_build(spec);
 
@@ -5425,7 +5432,7 @@ static int vt1716S_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	via_smart51_build(spec);
 
@@ -5781,7 +5788,7 @@ static int vt2002P_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	return 1;
 }
@@ -6000,12 +6007,12 @@ static int vt1812_auto_create_multi_out_ctls(struct via_spec *spec,
 
 	/* Line-Out: PortE */
 	err = via_add_control(spec, VIA_CTL_WIDGET_VOL,
-			      "Master Front Playback Volume",
+			      "Front Playback Volume",
 			      HDA_COMPOSE_AMP_VAL(0x8, 3, 0, HDA_OUTPUT));
 	if (err < 0)
 		return err;
 	err = via_add_control(spec, VIA_CTL_WIDGET_BIND_PIN_MUTE,
-			      "Master Front Playback Switch",
+			      "Front Playback Switch",
 			      HDA_COMPOSE_AMP_VAL(0x28, 3, 0, HDA_OUTPUT));
 	if (err < 0)
 		return err;
@@ -6130,7 +6137,7 @@ static int vt1812_parse_auto_config(struct hda_codec *codec)
 	spec->input_mux = &spec->private_imux[0];
 
 	if (spec->hp_mux)
-		via_hp_build(spec);
+		via_hp_build(codec);
 
 	return 1;
 }

From 328a2c22abd08911e37fa66f1358f829cecd72e9 Mon Sep 17 00:00:00 2001
From: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Date: Wed, 14 Apr 2010 16:14:07 +0200
Subject: [PATCH 169/464] hwmon: (sht15) Fix sht15_calc_temp interpolation
 function

I discovered two issues.
First the previous sht15_calc_temp() loop did not iterate through the
temppoints array since the (data->supply_uV > temppoints[i - 1].vdd)
test is always true in this direction.

Also the two-points linear interpolation function was returning biased
values due to a stray division by 1000 which shouldn't be there.

[JD: Also change the default value for d1 from 0 to something saner.]

Signed-off-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
---
 drivers/hwmon/sht15.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 6b2d8ae64fe11..9a15b1af1f11c 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -303,13 +303,13 @@ static int sht15_update_vals(struct sht15_data *data)
  **/
 static inline int sht15_calc_temp(struct sht15_data *data)
 {
-	int d1 = 0;
+	int d1 = temppoints[0].d1;
 	int i;
 
-	for (i = 1; i < ARRAY_SIZE(temppoints); i++)
+	for (i = ARRAY_SIZE(temppoints) - 1; i > 0; i--)
 		/* Find pointer to interpolate */
 		if (data->supply_uV > temppoints[i - 1].vdd) {
-			d1 = (data->supply_uV/1000 - temppoints[i - 1].vdd)
+			d1 = (data->supply_uV - temppoints[i - 1].vdd)
 				* (temppoints[i].d1 - temppoints[i - 1].d1)
 				/ (temppoints[i].vdd - temppoints[i - 1].vdd)
 				+ temppoints[i - 1].d1;

From c7a78d2c2e2537fd24903e966f34aae50319d587 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Wed, 14 Apr 2010 16:14:08 +0200
Subject: [PATCH 170/464] hwmon: (sht15) Properly handle the case
 CONFIG_REGULATOR=n

When CONFIG_REGULATOR isn't set, regulator_get_voltage() returns 0.
Properly handle this case by not trusting the value.

Reported-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
---
 drivers/hwmon/sht15.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 9a15b1af1f11c..a610e7880fb3e 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -542,7 +542,12 @@ static int __devinit sht15_probe(struct platform_device *pdev)
 /* If a regulator is available, query what the supply voltage actually is!*/
 	data->reg = regulator_get(data->dev, "vcc");
 	if (!IS_ERR(data->reg)) {
-		data->supply_uV = regulator_get_voltage(data->reg);
+		int voltage;
+
+		voltage = regulator_get_voltage(data->reg);
+		if (voltage)
+			data->supply_uV = voltage;
+
 		regulator_enable(data->reg);
 		/* setup a notifier block to update this if another device
 		 *  causes the voltage to change */

From a00afb97e23fd904b12a3f4de3237d8ab2f68738 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Wed, 14 Apr 2010 16:14:09 +0200
Subject: [PATCH 171/464] hwmon: (it87) Don't arbitrarily enable temperature
 channels

Temperature channels can be used in 2 different modes (thermistor and
thermal diode) and we don't know which one, if any, is correct for
every given board. So don't arbitrarily choose one. Instead, leave the
temperature channels untouched. They can be configured from user-space
if needed anyway.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/it87.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 1002befd87d5c..5e39e2d403800 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -545,6 +545,7 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&data->update_lock);
 
+	data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
 	data->sensor &= ~(1 << nr);
 	data->sensor &= ~(8 << nr);
 	if (val == 2) {	/* backwards compatibility */
@@ -1841,14 +1842,10 @@ static void __devinit it87_init_device(struct platform_device *pdev)
 			it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
 	}
 
-	/* Check if temperature channels are reset manually or by some reason */
-	tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE);
-	if ((tmp & 0x3f) == 0) {
-		/* Temp1,Temp3=thermistor; Temp2=thermal diode */
-		tmp = (tmp & 0xc0) | 0x2a;
-		it87_write_value(data, IT87_REG_TEMP_ENABLE, tmp);
-	}
-	data->sensor = tmp;
+	/* Temperature channels are not forcibly enabled, as they can be
+	 * set to two different sensor types and we can't guess which one
+	 * is correct for a given system. These channels can be enabled at
+	 * run-time through the temp{1-3}_type sysfs accessors if needed. */
 
 	/* Check if voltage monitors are reset manually or by some reason */
 	tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);

From 8acf07c5a7674e53f2d320d540aec5d714b105cf Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Wed, 14 Apr 2010 16:14:09 +0200
Subject: [PATCH 172/464] hwmon: (it87) Properly handle wrong sensor type
 requests

Currently, if someone tries to set the thermal sensor type to an
unsupported value, subsequent accesses to the chip may temporarily
show the sensor in question as disabled. Use a temporary variable
and only update the cached value on success, to prevent such
confusion.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/it87.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 5e39e2d403800..a65ba31cad29d 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -539,15 +539,14 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
 
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
+	u8 reg;
 
 	if (strict_strtol(buf, 10, &val) < 0)
 		return -EINVAL;
 
-	mutex_lock(&data->update_lock);
-
-	data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
-	data->sensor &= ~(1 << nr);
-	data->sensor &= ~(8 << nr);
+	reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
+	reg &= ~(1 << nr);
+	reg &= ~(8 << nr);
 	if (val == 2) {	/* backwards compatibility */
 		dev_warn(dev, "Sensor type 2 is deprecated, please use 4 "
 			 "instead\n");
@@ -555,13 +554,14 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
 	}
 	/* 3 = thermal diode; 4 = thermistor; 0 = disabled */
 	if (val == 3)
-		data->sensor |= 1 << nr;
+		reg |= 1 << nr;
 	else if (val == 4)
-		data->sensor |= 8 << nr;
-	else if (val != 0) {
-		mutex_unlock(&data->update_lock);
+		reg |= 8 << nr;
+	else if (val != 0)
 		return -EINVAL;
-	}
+
+	mutex_lock(&data->update_lock);
+	data->sensor = reg;
 	it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
 	mutex_unlock(&data->update_lock);
 	return count;

From 2b3d1d87eaabf422a42440351ff3be1792d35852 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Wed, 14 Apr 2010 16:14:10 +0200
Subject: [PATCH 173/464] hwmon: (it87) Invalidate cache on temperature sensor
 change

When any temperature sensor type is changed, the corresponding
temperature value needs to be updated. The register caching mechanism
may delay this update, so we want to invalidate the cache to force an
immediate update.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/it87.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index a65ba31cad29d..5be09c048c5f3 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -563,6 +563,7 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
 	mutex_lock(&data->update_lock);
 	data->sensor = reg;
 	it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
+	data->valid = 0;	/* Force cache refresh */
 	mutex_unlock(&data->update_lock);
 	return count;
 }

From e1741712e85cec8004c7eeeea81186618f78eff1 Mon Sep 17 00:00:00 2001
From: "Justin P. Mattock" <justinmattock@gmail.com>
Date: Wed, 14 Apr 2010 16:14:10 +0200
Subject: [PATCH 174/464] hwmon: (applesmc) Add iMac9,1 and MacBookPro2,2
 support

Add the iMac9,1 and the MacBookPro2,2 temperature sensors to hwmon
driver applesmc to fix kernel bug #14429:
https://bugzilla.kernel.org/show_bug.cgi?id=14429

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Acked-by: Nicolas Boichat <nicolas@boichat.ch>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/applesmc.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index c1605b528e8fc..0f28d91f29d8e 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -142,6 +142,12 @@ static const char *temperature_sensors_sets[][41] = {
 	  "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P", "TM9S",
 	  "TN0C", "TN0D", "TN0H", "TS0C", "Tp0C", "Tp1C", "Tv0S", "Tv1S",
 	  NULL },
+/* Set 17: iMac 9,1 */
+	{ "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TH0P", "TL0P",
+	  "TN0D", "TN0H", "TN0P", "TO0P", "Tm0P", "Tp0P", NULL },
+/* Set 18: MacBook Pro 2,2 */
+	{ "TB0T", "TC0D", "TC0P", "TG0H", "TG0P", "TG0T", "TM0P", "TTF0",
+	  "Th0H", "Th1H", "Tm0P", "Ts0P", NULL },
 };
 
 /* List of keys used to read/write fan speeds */
@@ -1350,6 +1356,10 @@ static __initdata struct dmi_match_data applesmc_dmi_data[] = {
 	{ .accelerometer = 1, .light = 1, .temperature_set = 15 },
 /* MacPro3,1: temperature set 16 */
 	{ .accelerometer = 0, .light = 0, .temperature_set = 16 },
+/* iMac 9,1: light sensor only, temperature set 17 */
+	{ .accelerometer = 0, .light = 0, .temperature_set = 17 },
+/* MacBook Pro 2,2: accelerometer, backlight and temperature set 18 */
+	{ .accelerometer = 1, .light = 1, .temperature_set = 18 },
 };
 
 /* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
@@ -1375,6 +1385,10 @@ static __initdata struct dmi_system_id applesmc_whitelist[] = {
 	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
 	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3") },
 		&applesmc_dmi_data[9]},
+	{ applesmc_dmi_match, "Apple MacBook Pro 2,2", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple Computer, Inc."),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2") },
+		&applesmc_dmi_data[18]},
 	{ applesmc_dmi_match, "Apple MacBook Pro", {
 	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
 	  DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") },
@@ -1415,6 +1429,10 @@ static __initdata struct dmi_system_id applesmc_whitelist[] = {
 	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
 	  DMI_MATCH(DMI_PRODUCT_NAME, "MacPro") },
 		&applesmc_dmi_data[4]},
+	{ applesmc_dmi_match, "Apple iMac 9,1", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1") },
+		&applesmc_dmi_data[17]},
 	{ applesmc_dmi_match, "Apple iMac 8", {
 	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
 	  DMI_MATCH(DMI_PRODUCT_NAME, "iMac8") },

From d618540fb3e5b74e16aec8201d2d0de6f02633cb Mon Sep 17 00:00:00 2001
From: Henrik Rydberg <rydberg@euromail.se>
Date: Wed, 14 Apr 2010 16:14:11 +0200
Subject: [PATCH 175/464] hwmon: (applesmc) Switch maintainers

Nicolas has expressed a wish to be relieved from the maintenance
of applesmc, so we simply switch maintainer with this patch.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Nicolas Boichat <nicolas@boichat.ch>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 MAINTAINERS | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 5b422908d0f3d..a0e3c3a47a51a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -485,8 +485,8 @@ S:	Maintained
 F:	drivers/input/mouse/bcm5974.c
 
 APPLE SMC DRIVER
-M:	Nicolas Boichat <nicolas@boichat.ch>
-L:	mactel-linux-devel@lists.sourceforge.net
+M:	Henrik Rydberg <rydberg@euromail.se>
+L:	lm-sensors@lm-sensors.org
 S:	Maintained
 F:	drivers/hwmon/applesmc.c
 

From 4e310fda91cb095915395f811d10b2c900c9589e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 14 Apr 2010 09:27:40 -0700
Subject: [PATCH 176/464] vsprintf: Change struct printf_spec.precision from s8
 to s16

Commit ef0658f3de484bf9b173639cd47544584e01efa5 changed precision
from int to s8.

There is existing kernel code that uses a larger precision.

An example from the audit code:
	vsnprintf(...,..., " msg='%.1024s'", (char *)data);
which overflows precision and truncates to nothing.

Extending precision size fixes the audit system issue.

Other changes:

Change the size of the struct printf_spec.type from u16 to u8 so
sizeof(struct printf_spec) stays as small as possible.
Reorder the struct members so sizeof(struct printf_spec) remains 64 bits
without alignment holes.
Document the struct members a bit more.

Original-patch-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/vsprintf.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 24112e5a57806..7376b7c55ffee 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -408,12 +408,12 @@ enum format_type {
 };
 
 struct printf_spec {
-	u16	type;
-	s16	field_width;	/* width of output field */
+	u8	type;		/* format_type enum */
 	u8	flags;		/* flags to number() */
-	u8	base;
-	s8	precision;	/* # of digits/chars */
-	u8	qualifier;
+	u8	base;		/* number base, 8, 10 or 16 only */
+	u8	qualifier;	/* number qualifier, one of 'hHlLtzZ' */
+	s16	field_width;	/* width of output field */
+	s16	precision;	/* # of digits/chars */
 };
 
 static char *number(char *buf, char *end, unsigned long long num,

From 1aac4effad4ea52da94eb13b12e0ca1731407ee4 Mon Sep 17 00:00:00 2001
From: Maxim Kuvyrkov <maxim@codesourcery.com>
Date: Wed, 3 Mar 2010 16:53:45 +0300
Subject: [PATCH 177/464] m68k: Fix `struct sigcontext' for ColdFire

LibSegFault uses piggybacks sc_fpstate field of the `struct sigcontext'
and this patch avoids LibSegFault overflowing this field.  Also this
removes an unnecessary divergence from classic m68k.

Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/m68k/include/asm/sigcontext.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/m68k/include/asm/sigcontext.h b/arch/m68k/include/asm/sigcontext.h
index 1320eaa4cc2aa..a29dd74a17cb2 100644
--- a/arch/m68k/include/asm/sigcontext.h
+++ b/arch/m68k/include/asm/sigcontext.h
@@ -17,13 +17,11 @@ struct sigcontext {
 #ifndef __uClinux__
 # ifdef __mcoldfire__
 	unsigned long  sc_fpregs[2][2];	/* room for two fp registers */
-	unsigned long  sc_fpcntl[3];
-	unsigned char  sc_fpstate[16+6*8];
 # else
 	unsigned long  sc_fpregs[2*3];  /* room for two fp registers */
+# endif
 	unsigned long  sc_fpcntl[3];
 	unsigned char  sc_fpstate[216];
-# endif
 #endif
 };
 

From b560177f3e1c6b2d75b220d41ae72636243475c4 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Sun, 21 Mar 2010 10:52:21 +0100
Subject: [PATCH 178/464] m68k: Fix asm constraints for atomic_sub_and_test()
 and atomic_add_negative()

Recently, we started seeing this on allmodconfig builds:

  CC      mm/memcontrol.o
{standard input}: Assembler messages:
{standard input}:4076: Error: operands mismatch -- statement `subl 12(%fp),170(%a0)' ignored

Correct the asm constraint, like done for m68knommu.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/m68k/include/asm/atomic_mm.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/m68k/include/asm/atomic_mm.h b/arch/m68k/include/asm/atomic_mm.h
index 88b7af20a9960..d9d2ed6474356 100644
--- a/arch/m68k/include/asm/atomic_mm.h
+++ b/arch/m68k/include/asm/atomic_mm.h
@@ -148,14 +148,18 @@ static inline int atomic_xchg(atomic_t *v, int new)
 static inline int atomic_sub_and_test(int i, atomic_t *v)
 {
 	char c;
-	__asm__ __volatile__("subl %2,%1; seq %0" : "=d" (c), "+m" (*v): "g" (i));
+	__asm__ __volatile__("subl %2,%1; seq %0"
+			     : "=d" (c), "+m" (*v)
+			     : "id" (i));
 	return c != 0;
 }
 
 static inline int atomic_add_negative(int i, atomic_t *v)
 {
 	char c;
-	__asm__ __volatile__("addl %2,%1; smi %0" : "=d" (c), "+m" (*v): "g" (i));
+	__asm__ __volatile__("addl %2,%1; smi %0"
+			     : "=d" (c), "+m" (*v)
+			     : "id" (i));
 	return c != 0;
 }
 

From 4eaa0e3c869acd5dbc7c2e3818a9ae9cbf221d27 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 14 Apr 2010 16:13:29 -0700
Subject: [PATCH 179/464] fib: suppress lockdep-RCU false positive in FIB trie.

Followup of commit 634a4b20

Allow tnode_get_child_rcu() to be called either under rcu_read_lock()
protection or with RTNL held.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/fib_trie.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 59a838795e3e6..c98f115fb0fde 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -209,7 +209,9 @@ static inline struct node *tnode_get_child_rcu(struct tnode *tn, unsigned int i)
 {
 	struct node *ret = tnode_get_child(tn, i);
 
-	return rcu_dereference(ret);
+	return rcu_dereference_check(ret,
+				     rcu_read_lock_held() ||
+				     lockdep_rtnl_is_held());
 }
 
 static inline int tnode_child_length(const struct tnode *tn)

From 6c9ff1013b7a21099da838eeef7c3f23ee347957 Mon Sep 17 00:00:00 2001
From: Stephen Smalley <sds@tycho.nsa.gov>
Date: Mon, 15 Mar 2010 10:42:11 -0400
Subject: [PATCH 180/464] SELinux: Reduce max avtab size to avoid page
 allocation failures

Reduce MAX_AVTAB_HASH_BITS so that the avtab allocation is an order 2
allocation rather than an order 4 allocation on x86_64.  This
addresses reports of page allocation failures:
http://marc.info/?l=selinux&m=126757230625867&w=2
https://bugzilla.redhat.com/show_bug.cgi?id=570433

Reported-by:  Russell Coker <russell@coker.com.au>
Signed-off-by:  Stephen D. Smalley <sds@tycho.nsa.gov>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 security/selinux/ss/avtab.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/selinux/ss/avtab.h b/security/selinux/ss/avtab.h
index 8da6a84280862..cd4f734e27499 100644
--- a/security/selinux/ss/avtab.h
+++ b/security/selinux/ss/avtab.h
@@ -82,7 +82,7 @@ struct avtab_node *avtab_search_node_next(struct avtab_node *node, int specified
 void avtab_cache_init(void);
 void avtab_cache_destroy(void);
 
-#define MAX_AVTAB_HASH_BITS 13
+#define MAX_AVTAB_HASH_BITS 11
 #define MAX_AVTAB_HASH_BUCKETS (1 << MAX_AVTAB_HASH_BITS)
 #define MAX_AVTAB_HASH_MASK (MAX_AVTAB_HASH_BUCKETS-1)
 #define MAX_AVTAB_SIZE MAX_AVTAB_HASH_BUCKETS

From 565a79f74af96ae90dfec411da14dc38d2cd56bc Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Wed, 14 Apr 2010 09:17:31 +0200
Subject: [PATCH 181/464] ASoC: imx-ssi: increase minimum periods to 4

Currently the notification of elapsed periods is not very exact.
Increase minimum periods to 4 as suggested by Liam Girdwood.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/imx/imx-pcm-fiq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/imx/imx-pcm-fiq.c b/sound/soc/imx/imx-pcm-fiq.c
index 64df813b9af8c..98ab33109527c 100644
--- a/sound/soc/imx/imx-pcm-fiq.c
+++ b/sound/soc/imx/imx-pcm-fiq.c
@@ -174,7 +174,7 @@ static struct snd_pcm_hardware snd_imx_hardware = {
 	.buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
 	.period_bytes_min = 128,
 	.period_bytes_max = 16 * 1024,
-	.periods_min = 2,
+	.periods_min = 4,
 	.periods_max = 255,
 	.fifo_size = 0,
 };

From 1f1b0008e8dd1930d6e89522c70f4a438374302a Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Thu, 15 Apr 2010 08:03:57 +0200
Subject: [PATCH 182/464] [LogFS] Prevent mempool_destroy NULL pointer
 dereference

It would probably be better to just accept NULL pointers in
mempool_destroy().  But for the current -rc series let's keep things
simple.

This patch was lost in the cracks for a while.
Kevin Cernekee <cernekee@gmail.com> had to rediscover the problem and
send a similar patch because of it. :(

Signed-off-by: Joern Engel <joern@logfs.org>
---
 fs/logfs/logfs.h     | 6 ++++++
 fs/logfs/readwrite.c | 6 ++----
 fs/logfs/segment.c   | 2 +-
 fs/logfs/super.c     | 4 ++--
 4 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index c9929eed80b13..0a3df1a0c9368 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -727,4 +727,10 @@ static inline struct logfs_area *get_area(struct super_block *sb,
 	return logfs_super(sb)->s_area[(__force u8)gc_level];
 }
 
+static inline void logfs_mempool_destroy(mempool_t *pool)
+{
+	if (pool)
+		mempool_destroy(pool);
+}
+
 #endif
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 7e0c39c497195..aca6c56a107ac 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -2243,8 +2243,6 @@ void logfs_cleanup_rw(struct super_block *sb)
 	struct logfs_super *super = logfs_super(sb);
 
 	destroy_meta_inode(super->s_segfile_inode);
-	if (super->s_block_pool)
-		mempool_destroy(super->s_block_pool);
-	if (super->s_shadow_pool)
-		mempool_destroy(super->s_shadow_pool);
+	logfs_mempool_destroy(super->s_block_pool);
+	logfs_mempool_destroy(super->s_shadow_pool);
 }
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index 02db22ebbf130..8c82fe05d3e11 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -912,7 +912,7 @@ int logfs_init_areas(struct super_block *sb)
 	for (i--; i >= 0; i--)
 		free_area(super->s_area[i]);
 	free_area(super->s_journal_area);
-	mempool_destroy(super->s_alias_pool);
+	logfs_mempool_destroy(super->s_alias_pool);
 	return -ENOMEM;
 }
 
diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index d6e1f4fc3115b..d4531eb46d0a7 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -517,8 +517,8 @@ static void logfs_kill_sb(struct super_block *sb)
 	if (super->s_erase_page)
 		__free_page(super->s_erase_page);
 	super->s_devops->put_device(sb);
-	mempool_destroy(super->s_btree_pool);
-	mempool_destroy(super->s_alias_pool);
+	logfs_mempool_destroy(super->s_btree_pool);
+	logfs_mempool_destroy(super->s_alias_pool);
 	kfree(super);
 	log_super("LogFS: Finished unmounting\n");
 }

From d1501ea844eefdf925f6b711875b4b2b928fddf8 Mon Sep 17 00:00:00 2001
From: Joerg Schirottke <master@kanotix.com>
Date: Thu, 15 Apr 2010 08:37:41 +0200
Subject: [PATCH 183/464] ALSA: hda - add a quirk for Clevo M570U laptop

Added the matching model for Clevo laptop M570U.

Signed-off-by: Joerg Schirottke <master@kanotix.com>
Tested-by: Maximilian Gerhard <maxbox@directbox.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 4b35176d34548..aad1627f56f1e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -9350,6 +9350,7 @@ static struct snd_pci_quirk alc882_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x1462, 0xaa08, "MSI", ALC883_TARGA_2ch_DIG),
 
 	SND_PCI_QUIRK(0x147b, 0x1083, "Abit IP35-PRO", ALC883_6ST_DIG),
+	SND_PCI_QUIRK(0x1558, 0x0571, "Clevo laptop M570U", ALC883_3ST_6ch_DIG),
 	SND_PCI_QUIRK(0x1558, 0x0721, "Clevo laptop M720R", ALC883_CLEVO_M720),
 	SND_PCI_QUIRK(0x1558, 0x0722, "Clevo laptop M720SR", ALC883_CLEVO_M720),
 	SND_PCI_QUIRK(0x1558, 0x5409, "Clevo laptop M540R", ALC883_CLEVO_M540R),

From 8815cd030fdd73932a791d1f06194c8db807cde7 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 15 Apr 2010 09:02:41 +0200
Subject: [PATCH 184/464] ALSA: hda - Add position_fix quirk for Biostar mobo

The Biostar mobo seems to give a wrong DMA position, resulting in
stuttering or skipping sounds on 2.6.34.  Since the commit
7b3a177b0d4f92b3431b8dca777313a07533a710, "ALSA: pcm_lib: fix "something
must be really wrong" condition", makes the position check more strictly,
the DMA position problem is revealed more clearly now.

The fix is to use only LPIB for obtaining the position, i.e. passing
position_fix=1.  This patch adds a static quirk to achieve it as default.

Reported-by: Frank Griffin <ftg@roadrunner.com>
Cc: Eric Piel <Eric.Piel@tremplin-utc.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index f8fd586ae0246..f669442b7c829 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2272,6 +2272,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = {
 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1565, 0x820f, "Biostar Microtech", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x8086, 0xd601, "eMachines T5212", POS_FIX_LPIB),
 	{}
 };

From 8728c544a9cbdcb0034aa5c45706c5f953f030ee Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 11 Apr 2010 21:18:17 +0000
Subject: [PATCH 185/464] net: dev_pick_tx() fix

When dev_pick_tx() caches tx queue_index on a socket, we must check
socket dst_entry matches skb one, or risk a crash later, as reported by
Denys Fedorysychenko, if old packets are in flight during a route
change, involving devices with different number of queues.

Bug introduced by commit a4ee3ce3
(net: Use sk_tx_queue_mapping for connected sockets)

Reported-by: Denys Fedorysychenko <nuclearcat@nuclearcat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 1c8a0ce473a86..92584bfef09bc 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1989,8 +1989,12 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev,
 			if (dev->real_num_tx_queues > 1)
 				queue_index = skb_tx_hash(dev, skb);
 
-			if (sk && sk->sk_dst_cache)
-				sk_tx_queue_set(sk, queue_index);
+			if (sk) {
+				struct dst_entry *dst = rcu_dereference(sk->sk_dst_cache);
+
+				if (dst && skb_dst(skb) == dst)
+					sk_tx_queue_set(sk, queue_index);
+			}
 		}
 	}
 

From 19b3eecc21b65a24b0aae2684ca0c8e1b99ef802 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun, 11 Apr 2010 11:52:12 +0200
Subject: [PATCH 186/464] firewire: cdev: change license of exported header
 files to MIT license
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Among else, this allows projects like libdc1394 to carry copies of the
ABI related header files without them or distributors having to worry
about effects on the project's overall license terms.  Switch to MIT
license as suggested by Kristian.  Also update the year in the
copyright statement according to source history.

Cc: Jay Fenlason <fenlason@redhat.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
---
 include/linux/firewire-cdev.h      | 35 +++++++++++++++++-------------
 include/linux/firewire-constants.h | 29 +++++++++++++++++++++++--
 2 files changed, 47 insertions(+), 17 deletions(-)

diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 6ffb24a1f2f2a..81f3b14d5d765 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -1,21 +1,26 @@
 /*
  * Char device interface.
  *
- * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Copyright (C) 2005-2007  Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
  */
 
 #ifndef _LINUX_FIREWIRE_CDEV_H
diff --git a/include/linux/firewire-constants.h b/include/linux/firewire-constants.h
index b316770a43fdc..9c63f06e67f25 100644
--- a/include/linux/firewire-constants.h
+++ b/include/linux/firewire-constants.h
@@ -1,3 +1,28 @@
+/*
+ * IEEE 1394 constants.
+ *
+ * Copyright (C) 2005-2007  Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
 #ifndef _LINUX_FIREWIRE_CONSTANTS_H
 #define _LINUX_FIREWIRE_CONSTANTS_H
 
@@ -21,7 +46,7 @@
 #define EXTCODE_WRAP_ADD		0x6
 #define EXTCODE_VENDOR_DEPENDENT	0x7
 
-/* Juju specific tcodes */
+/* Linux firewire-core (Juju) specific tcodes */
 #define TCODE_LOCK_MASK_SWAP		(0x10 | EXTCODE_MASK_SWAP)
 #define TCODE_LOCK_COMPARE_SWAP		(0x10 | EXTCODE_COMPARE_SWAP)
 #define TCODE_LOCK_FETCH_ADD		(0x10 | EXTCODE_FETCH_ADD)
@@ -36,7 +61,7 @@
 #define RCODE_TYPE_ERROR		0x6
 #define RCODE_ADDRESS_ERROR		0x7
 
-/* Juju specific rcodes */
+/* Linux firewire-core (Juju) specific rcodes */
 #define RCODE_SEND_ERROR		0x10
 #define RCODE_CANCELLED			0x11
 #define RCODE_BUSY			0x12

From 8392609969b3b37a4da5cff08161661f7a8c16af Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Wed, 14 Apr 2010 09:17:30 +0200
Subject: [PATCH 187/464] ASoC: imx-ssi: do not call hrtimer_disable in trigger
 function

Doing so causes a deadlock, so just signal the timer to stop
using an atomic variable.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/imx/imx-pcm-fiq.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sound/soc/imx/imx-pcm-fiq.c b/sound/soc/imx/imx-pcm-fiq.c
index 98ab33109527c..ecec332121f28 100644
--- a/sound/soc/imx/imx-pcm-fiq.c
+++ b/sound/soc/imx/imx-pcm-fiq.c
@@ -41,6 +41,7 @@ struct imx_pcm_runtime_data {
 	struct hrtimer hrt;
 	int poll_time_ns;
 	struct snd_pcm_substream *substream;
+	atomic_t running;
 };
 
 static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
@@ -52,6 +53,9 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	struct pt_regs regs;
 	unsigned long delta;
 
+	if (!atomic_read(&iprtd->running))
+		return HRTIMER_NORESTART;
+
 	get_fiq_regs(&regs);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@@ -129,6 +133,7 @@ static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		atomic_set(&iprtd->running, 1);
 		hrtimer_start(&iprtd->hrt, ns_to_ktime(iprtd->poll_time_ns),
 		      HRTIMER_MODE_REL);
 		if (++fiq_enable == 1)
@@ -139,11 +144,11 @@ static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		hrtimer_cancel(&iprtd->hrt);
+		atomic_set(&iprtd->running, 0);
+
 		if (--fiq_enable == 0)
 			disable_fiq(imx_pcm_fiq);
 
-
 		break;
 	default:
 		return -EINVAL;
@@ -190,6 +195,7 @@ static int snd_imx_open(struct snd_pcm_substream *substream)
 
 	iprtd->substream = substream;
 
+	atomic_set(&iprtd->running, 0);
 	hrtimer_init(&iprtd->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	iprtd->hrt.function = snd_hrtimer_callback;
 

From 41b97ab5050088cd23692d578e7294c7be26109a Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Thu, 15 Apr 2010 19:01:53 +0200
Subject: [PATCH 188/464] pcmcia: fix ioport size calculation in rsrc_nonstatic

Size needs to be calculated after manipulating with the start value.

Reported-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/rsrc_nonstatic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 1178a823fbc64..a6eb7b59ba9f8 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -810,7 +810,7 @@ static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned
 static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end)
 {
 	struct socket_data *data = s->resource_data;
-	unsigned long size = end - start + 1;
+	unsigned long size;
 	int ret = 0;
 
 #if defined(CONFIG_X86)
@@ -820,6 +820,8 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long
 		start = 0x100;
 #endif
 
+	size = end - start + 1;
+
 	if (end < start)
 		return -EINVAL;
 

From 014f61504af276ba9d9544d8a7401d8f8526eb73 Mon Sep 17 00:00:00 2001
From: Ping Cheng <pingc@wacom.com>
Date: Tue, 13 Apr 2010 23:07:52 -0700
Subject: [PATCH 189/464] Input: wacom - switch mode upon system resume

When Wacom devices wake up from a sleep, the switch mode command
(wacom_query_tablet_data) is needed before wacom_open is called.
wacom_query_tablet_data should not be executed inside wacom_open
since wacom_open is called more than once during probe.

wacom_retrieve_hid_descriptor is removed from wacom_resume due
to the fact that the required descriptors are stored properly
upon system resume.

Reported-and-tested-by: Anton Anikin <Anton@Anikin.name>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/tablet/wacom_sys.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 8b5d2873f0c4d..f46502589e4ea 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -673,13 +673,15 @@ static int wacom_resume(struct usb_interface *intf)
 	int rv;
 
 	mutex_lock(&wacom->lock);
-	if (wacom->open) {
+
+	/* switch to wacom mode first */
+	wacom_query_tablet_data(intf, features);
+
+	if (wacom->open)
 		rv = usb_submit_urb(wacom->irq, GFP_NOIO);
-		/* switch to wacom mode if needed */
-		if (!wacom_retrieve_hid_descriptor(intf, features))
-			wacom_query_tablet_data(intf, features);
-	} else
+	else
 		rv = 0;
+
 	mutex_unlock(&wacom->lock);
 
 	return rv;

From a2612cb16d4d8447793609cbdd2a2f4f156c0020 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Thu, 15 Apr 2010 22:16:04 +0200
Subject: [PATCH 190/464] firewire: cdev: fix cut+paste mistake in disclaimer

This was supposed to be generic "authors or copyright holders";
I mistakenly picked up text from a wrong file.

Reported-by: Daniel K. <dk@uw.no>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 include/linux/firewire-cdev.h      | 2 +-
 include/linux/firewire-constants.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 81f3b14d5d765..68f883b30a53c 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -17,7 +17,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  * DEALINGS IN THE SOFTWARE.
diff --git a/include/linux/firewire-constants.h b/include/linux/firewire-constants.h
index 9c63f06e67f25..9b4bb5fbba4b4 100644
--- a/include/linux/firewire-constants.h
+++ b/include/linux/firewire-constants.h
@@ -17,7 +17,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  * DEALINGS IN THE SOFTWARE.

From e30b38c298b55e09456d3ccbc1df2f3e2e8dc6e9 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 15 Apr 2010 09:13:03 +0000
Subject: [PATCH 191/464] ip: Fix ip_dev_loopback_xmit()

Eric Paris got following trace with a linux-next kernel

[   14.203970] BUG: using smp_processor_id() in preemptible [00000000]
code: avahi-daemon/2093
[   14.204025] caller is netif_rx+0xfa/0x110
[   14.204035] Call Trace:
[   14.204064]  [<ffffffff81278fe5>] debug_smp_processor_id+0x105/0x110
[   14.204070]  [<ffffffff8142163a>] netif_rx+0xfa/0x110
[   14.204090]  [<ffffffff8145b631>] ip_dev_loopback_xmit+0x71/0xa0
[   14.204095]  [<ffffffff8145b892>] ip_mc_output+0x192/0x2c0
[   14.204099]  [<ffffffff8145d610>] ip_local_out+0x20/0x30
[   14.204105]  [<ffffffff8145d8ad>] ip_push_pending_frames+0x28d/0x3d0
[   14.204119]  [<ffffffff8147f1cc>] udp_push_pending_frames+0x14c/0x400
[   14.204125]  [<ffffffff814803fc>] udp_sendmsg+0x39c/0x790
[   14.204137]  [<ffffffff814891d5>] inet_sendmsg+0x45/0x80
[   14.204149]  [<ffffffff8140af91>] sock_sendmsg+0xf1/0x110
[   14.204189]  [<ffffffff8140dc6c>] sys_sendmsg+0x20c/0x380
[   14.204233]  [<ffffffff8100ad82>] system_call_fastpath+0x16/0x1b

While current linux-2.6 kernel doesnt emit this warning, bug is latent
and might cause unexpected failures.

ip_dev_loopback_xmit() runs in process context, preemption enabled, so
must call netif_rx_ni() instead of netif_rx(), to make sure that we
process pending software interrupt.

Same change for ip6_dev_loopback_xmit()

Reported-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ip_output.c  | 2 +-
 net/ipv6/ip6_output.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index c65f18e0936e7..d1bcc9f21d4fb 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -120,7 +120,7 @@ static int ip_dev_loopback_xmit(struct sk_buff *newskb)
 	newskb->pkt_type = PACKET_LOOPBACK;
 	newskb->ip_summed = CHECKSUM_UNNECESSARY;
 	WARN_ON(!skb_dst(newskb));
-	netif_rx(newskb);
+	netif_rx_ni(newskb);
 	return 0;
 }
 
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 16c4391f952b5..65f9c379df386 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -108,7 +108,7 @@ static int ip6_dev_loopback_xmit(struct sk_buff *newskb)
 	newskb->ip_summed = CHECKSUM_UNNECESSARY;
 	WARN_ON(!skb_dst(newskb));
 
-	netif_rx(newskb);
+	netif_rx_ni(newskb);
 	return 0;
 }
 

From 77165a48edeaf4758588563c0592af6559e8b256 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 7 Apr 2010 13:17:22 +0530
Subject: [PATCH 192/464] [WATCHDOG] omap4: Fix WDT Kconfig

This patch allows Watchdog timer to be selected for OMAP4 by fixing
Kconfig entry

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 0e8468ffd100f..3a6aa0ff975ae 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -194,10 +194,10 @@ config EP93XX_WATCHDOG
 
 config OMAP_WATCHDOG
 	tristate "OMAP Watchdog"
-	depends on ARCH_OMAP16XX || ARCH_OMAP2 || ARCH_OMAP3
+	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
 	help
-	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog.  Say 'Y'
-	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog timer.
+	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
+	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 
 config PNX4008_WATCHDOG
 	tristate "PNX4008 Watchdog"

From 0fb06571bbb5c72b4663c20f721323260ea802bf Mon Sep 17 00:00:00 2001
From: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>
Date: Thu, 15 Apr 2010 15:59:10 +1200
Subject: [PATCH 193/464] [WATCHDOG] fixed book E watchdog period register
 mask.

A previous fix changed the WDTP function to use the period directly,
rather than subtracting from 63.  However the mask generation was
not changed, so the mask was coming out as 0.  This patch fixes it.

Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/booke_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index 8b724aad68259..500d38342e1ec 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -44,7 +44,7 @@ u32 booke_wdt_period = WDT_PERIOD_DEFAULT;
 
 #ifdef	CONFIG_FSL_BOOKE
 #define WDTP(x)		((((x)&0x3)<<30)|(((x)&0x3c)<<15))
-#define WDTP_MASK	(WDTP(0))
+#define WDTP_MASK	(WDTP(0x3f))
 #else
 #define WDTP(x)		(TCR_WP(x))
 #define WDTP_MASK	(TCR_WP_MASK)

From b1183e064a3f95d27351b2d2c811b50bf4d770a4 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@misterjones.org>
Date: Fri, 9 Apr 2010 17:43:33 +0100
Subject: [PATCH 194/464] [WATCHDOG] max63xx: be careful when disabling the
 watchdog

When shutting down the watchdog timer, special care must be taken
not to overwrite other bits in the register, as it may be shared
with other peripherals.

For example, on the Arcom Vulcan, the register is shared between
the watchdog and the PCI reset line...

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/max63xx_wdt.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 75f3a83c0361d..3053ff05ca410 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -154,9 +154,14 @@ static void max63xx_wdt_enable(struct max63xx_timeout *entry)
 
 static void max63xx_wdt_disable(void)
 {
+	u8 val;
+
 	spin_lock(&io_lock);
 
-	__raw_writeb(3, wdt_base);
+	val = __raw_readb(wdt_base);
+	val &= ~MAX6369_WDSET;
+	val |= 3;
+	__raw_writeb(val, wdt_base);
 
 	spin_unlock(&io_lock);
 

From aebaec975f30c4db40bb418fe9117bb6b4655b1b Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Wed, 7 Apr 2010 19:57:02 +0200
Subject: [PATCH 195/464] [WATCHDOG] max63xx driver depends on ioremap()

Correct fix for the "ioremap() causes build failure on S390" should have been
a dependancy on HAS_IOMEM. So we add this dependancy also (and leave the driver
in the ARM section for now).

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 3a6aa0ff975ae..0bf5020d0d326 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -302,7 +302,7 @@ config TS72XX_WATCHDOG
 
 config MAX63XX_WATCHDOG
 	tristate "Max63xx watchdog"
-	depends on ARM
+	depends on ARM && HAS_IOMEM
 	help
 	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
 

From 2b0b39517d1af5294128dbc2fd7ed39c8effa540 Mon Sep 17 00:00:00 2001
From: Bill Pemberton <wfp5p@virginia.edu>
Date: Fri, 16 Apr 2010 08:01:20 -0500
Subject: [PATCH 196/464] jfs: fix diAllocExt error in resizing filesystem

Resizing the filesystem would result in an diAllocExt error in some
instances because changes in bmp->db_agsize would not get noticed if
goto extendBmap was called.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: jfs-discussion@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org
---
 fs/jfs/resize.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index 7f24a0bb08ca0..1aba0039f1c99 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -81,6 +81,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 	struct inode *iplist[1];
 	struct jfs_superblock *j_sb, *j_sb2;
 	uint old_agsize;
+	int agsizechanged = 0;
 	struct buffer_head *bh, *bh2;
 
 	/* If the volume hasn't grown, get out now */
@@ -333,6 +334,9 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 	 */
 	if ((rc = dbExtendFS(ipbmap, XAddress, nblocks)))
 		goto error_out;
+
+	agsizechanged |= (bmp->db_agsize != old_agsize);
+
 	/*
 	 * the map now has extended to cover additional nblocks:
 	 * dn_mapsize = oldMapsize + nblocks;
@@ -432,7 +436,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 	 * will correctly identify the new ag);
 	 */
 	/* if new AG size the same as old AG size, done! */
-	if (bmp->db_agsize != old_agsize) {
+	if (agsizechanged) {
 		if ((rc = diExtendFS(ipimap, ipbmap)))
 			goto error_out;
 

From c7f2e1f0ac142a657a1de00d404e1c8345b20598 Mon Sep 17 00:00:00 2001
From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Fri, 16 Apr 2010 08:05:50 -0500
Subject: [PATCH 197/464] jfs: add jfs specific ->setattr call

generic setattr not longer responsible for quota transfer.
use jfs_setattr for all jfs's inodes.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
---
 fs/jfs/inode.c     |  2 +-
 fs/jfs/jfs_inode.h |  1 +
 fs/jfs/namei.c     |  4 ++--
 fs/jfs/symlink.c   | 14 +++++++++++++-
 4 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index b2ae190a77ba2..97cd11954d083 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -60,7 +60,7 @@ struct inode *jfs_iget(struct super_block *sb, unsigned long ino)
 			inode->i_op = &page_symlink_inode_operations;
 			inode->i_mapping->a_ops = &jfs_aops;
 		} else {
-			inode->i_op = &jfs_symlink_inode_operations;
+			inode->i_op = &jfs_fast_symlink_inode_operations;
 			/*
 			 * The inline data should be null-terminated, but
 			 * don't let on-disk corruption crash the kernel
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 1eff7db34d635..f8b56b238bb89 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -47,5 +47,6 @@ extern const struct file_operations jfs_dir_operations;
 extern const struct inode_operations jfs_file_inode_operations;
 extern const struct file_operations jfs_file_operations;
 extern const struct inode_operations jfs_symlink_inode_operations;
+extern const struct inode_operations jfs_fast_symlink_inode_operations;
 extern const struct dentry_operations jfs_ci_dentry_operations;
 #endif				/* _H_JFS_INODE */
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index c79a4270f0837..114e600711088 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -946,7 +946,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
 	 */
 
 	if (ssize <= IDATASIZE) {
-		ip->i_op = &jfs_symlink_inode_operations;
+		ip->i_op = &jfs_fast_symlink_inode_operations;
 
 		i_fastsymlink = JFS_IP(ip)->i_inline;
 		memcpy(i_fastsymlink, name, ssize);
@@ -968,7 +968,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
 	else {
 		jfs_info("jfs_symlink: allocate extent ip:0x%p", ip);
 
-		ip->i_op = &page_symlink_inode_operations;
+		ip->i_op = &jfs_symlink_inode_operations;
 		ip->i_mapping->a_ops = &jfs_aops;
 
 		/*
diff --git a/fs/jfs/symlink.c b/fs/jfs/symlink.c
index 4af1a05aad0af..205b946d8e0d3 100644
--- a/fs/jfs/symlink.c
+++ b/fs/jfs/symlink.c
@@ -29,9 +29,21 @@ static void *jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 	return NULL;
 }
 
-const struct inode_operations jfs_symlink_inode_operations = {
+const struct inode_operations jfs_fast_symlink_inode_operations = {
 	.readlink	= generic_readlink,
 	.follow_link	= jfs_follow_link,
+	.setattr	= jfs_setattr,
+	.setxattr	= jfs_setxattr,
+	.getxattr	= jfs_getxattr,
+	.listxattr	= jfs_listxattr,
+	.removexattr	= jfs_removexattr,
+};
+
+const struct inode_operations jfs_symlink_inode_operations = {
+	.readlink	= generic_readlink,
+	.follow_link	= page_follow_link_light,
+	.put_link	= page_put_link,
+	.setattr	= jfs_setattr,
 	.setxattr	= jfs_setxattr,
 	.getxattr	= jfs_getxattr,
 	.listxattr	= jfs_listxattr,

From b6f8dd49dbdbfa60a33bba3d4b766fe341109b4b Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 13 Apr 2010 15:06:44 +1000
Subject: [PATCH 198/464] xfs: ensure that sync updates the log tail correctly
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Updates to the VFS layer removed an extra ->sync_fs call into the
filesystem during the sync process (from the quota code).
Unfortunately the sync code was unknowingly relying on this call to
make sure metadata buffers were flushed via a xfs_buftarg_flush()
call to move the tail of the log forward in memory before the final
transactions of the sync process were issued.

As a result, the old code would write a very recent log tail value
to the log by the end of the sync process, and so a subsequent crash
would leave nothing for log recovery to do. Hence in qa test 182,
log recovery only replayed a small handle for inode fsync
transactions in this case.

However, with the removal of the extra ->sync_fs call, the log tail
was now not moved forward with the inode fsync transactions near the
end of the sync procese the first (and only) buftarg flush occurred
after these transactions went to disk. The result is that log
recovery now sees a large number of transactions for metadata that
is already on disk.

This usually isn't a problem, but when the transactions include
inode chunk allocation, the inode create transactions and all
subsequent changes are replayed as we cannt rely on what is on disk
is valid. As a result, if the inode was written and contains
unlogged changes, the unlogged changes are lost, thereby violating
sync semantics.

The fix is to always issue a transaction after the buftarg flush
occurs is the log iѕ not idle or covered. This results in a dummy
transaction being written that contains the up-to-date log tail
value, which will be very recent. Indeed, it will be at least as
recent as the old code would have left on disk, so log recovery
will behave exactly as it used to in this situation.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
---
 fs/xfs/xfs_log.c | 38 ++++++++++++++++++++++++++------------
 1 file changed, 26 insertions(+), 12 deletions(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index e8fba92d7cd9f..2be0191362876 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -745,9 +745,16 @@ xfs_log_move_tail(xfs_mount_t	*mp,
 
 /*
  * Determine if we have a transaction that has gone to disk
- * that needs to be covered. Log activity needs to be idle (no AIL and
- * nothing in the iclogs). And, we need to be in the right state indicating
- * something has gone out.
+ * that needs to be covered. To begin the transition to the idle state
+ * firstly the log needs to be idle (no AIL and nothing in the iclogs).
+ * If we are then in a state where covering is needed, the caller is informed
+ * that dummy transactions are required to move the log into the idle state.
+ *
+ * Because this is called as part of the sync process, we should also indicate
+ * that dummy transactions should be issued in anything but the covered or
+ * idle states. This ensures that the log tail is accurately reflected in
+ * the log at the end of the sync, hence if a crash occurrs avoids replay
+ * of transactions where the metadata is already on disk.
  */
 int
 xfs_log_need_covered(xfs_mount_t *mp)
@@ -759,17 +766,24 @@ xfs_log_need_covered(xfs_mount_t *mp)
 		return 0;
 
 	spin_lock(&log->l_icloglock);
-	if (((log->l_covered_state == XLOG_STATE_COVER_NEED) ||
-		(log->l_covered_state == XLOG_STATE_COVER_NEED2))
-			&& !xfs_trans_ail_tail(log->l_ailp)
-			&& xlog_iclogs_empty(log)) {
-		if (log->l_covered_state == XLOG_STATE_COVER_NEED)
-			log->l_covered_state = XLOG_STATE_COVER_DONE;
-		else {
-			ASSERT(log->l_covered_state == XLOG_STATE_COVER_NEED2);
-			log->l_covered_state = XLOG_STATE_COVER_DONE2;
+	switch (log->l_covered_state) {
+	case XLOG_STATE_COVER_DONE:
+	case XLOG_STATE_COVER_DONE2:
+	case XLOG_STATE_COVER_IDLE:
+		break;
+	case XLOG_STATE_COVER_NEED:
+	case XLOG_STATE_COVER_NEED2:
+		if (!xfs_trans_ail_tail(log->l_ailp) &&
+		    xlog_iclogs_empty(log)) {
+			if (log->l_covered_state == XLOG_STATE_COVER_NEED)
+				log->l_covered_state = XLOG_STATE_COVER_DONE;
+			else
+				log->l_covered_state = XLOG_STATE_COVER_DONE2;
 		}
+		/* FALLTHRU */
+	default:
 		needed = 1;
+		break;
 	}
 	spin_unlock(&log->l_icloglock);
 	return needed;

From f1d486a3617a2f620b31224e4ace1496c4627e39 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 13 Apr 2010 15:06:45 +1000
Subject: [PATCH 199/464] xfs: don't warn on EAGAIN in inode reclaim

Any inode reclaim flush that returns EAGAIN will result in the inode
reclaim being attempted again later. There is no need to issue a
warning into the logs about this situation.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
---
 fs/xfs/linux-2.6/xfs_sync.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index 05cd85317f6f5..fd96982157593 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -820,10 +820,10 @@ xfs_reclaim_inode(
 	 * call into reclaim to find it in a clean state instead of waiting for
 	 * it now. We also don't return errors here - if the error is transient
 	 * then the next reclaim pass will flush the inode, and if the error
-	 * is permanent then the next sync reclaim will relcaim the inode and
+	 * is permanent then the next sync reclaim will reclaim the inode and
 	 * pass on the error.
 	 */
-	if (error && !XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+	if (error && error != EAGAIN && !XFS_FORCED_SHUTDOWN(ip->i_mount)) {
 		xfs_fs_cmn_err(CE_WARN, ip->i_mount,
 			"inode 0x%llx background reclaim flush failed with %d",
 			(long long)ip->i_ino, error);

From 2060c44576c79086ff24718878d7edaa7384a985 Mon Sep 17 00:00:00 2001
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Date: Fri, 16 Apr 2010 15:36:40 -0400
Subject: [PATCH 200/464] ACPI: EC: Limit burst to 64 bits

access_bit_width field is u8 in ACPICA, thus 256 value written to it
becomes 0, causing divide by zero later.

Proper fix would be to remove access_bit_width at all, just because
we already have access_byte_width, which is access_bit_width / 8.
Limit access width to 64 bit for now.

https://bugzilla.kernel.org/show_bug.cgi?id=15749
fixes regression caused by the fix for:
https://bugzilla.kernel.org/show_bug.cgi?id=14667

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/exprep.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index a610ebe18edd2..2fbfe51fb141a 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -471,13 +471,18 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 		/* allow full data read from EC address space */
 		if (obj_desc->field.region_obj->region.space_id ==
 			ACPI_ADR_SPACE_EC) {
-			if (obj_desc->common_field.bit_length > 8)
-				obj_desc->common_field.access_bit_width =
-				ACPI_ROUND_UP(obj_desc->common_field.
-							bit_length, 8);
+			if (obj_desc->common_field.bit_length > 8) {
+				unsigned width =
+					ACPI_ROUND_BITS_UP_TO_BYTES(
+					obj_desc->common_field.bit_length);
+				// access_bit_width is u8, don't overflow it
+				if (width > 8)
+					width = 8;
 				obj_desc->common_field.access_byte_width =
-				ACPI_DIV_8(obj_desc->common_field.
-							access_bit_width);
+							width;
+				obj_desc->common_field.access_bit_width =
+							8 * width;
+			}
 		}
 
 		ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,

From 88be026490ed89c2ffead81a52531fbac5507e01 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 7 Apr 2010 00:21:36 -0700
Subject: [PATCH 201/464] iwlwifi: fix scan races

When an internal scan is started, nothing protects the
is_internal_short_scan variable which can cause crashes,
cf. https://bugzilla.kernel.org/show_bug.cgi?id=15667.
Fix this by making the short scan request use the mutex
for locking, which requires making the request go to a
work struct so that it can sleep.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c  |  1 +
 drivers/net/wireless/iwlwifi/iwl-core.c |  1 -
 drivers/net/wireless/iwlwifi/iwl-core.h |  2 +-
 drivers/net/wireless/iwlwifi/iwl-dev.h  |  1 +
 drivers/net/wireless/iwlwifi/iwl-scan.c | 31 ++++++++++++++++---------
 5 files changed, 23 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index e4c2e1e448ad2..ba0fdba602cdb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3330,6 +3330,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
 
 	cancel_delayed_work_sync(&priv->init_alive_start);
 	cancel_delayed_work(&priv->scan_check);
+	cancel_work_sync(&priv->start_internal_scan);
 	cancel_delayed_work(&priv->alive_start);
 	cancel_work_sync(&priv->beacon_update);
 	del_timer_sync(&priv->statistics_periodic);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 894bcb8b8b37d..1459cdb26f8dd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -3357,7 +3357,6 @@ static void iwl_force_rf_reset(struct iwl_priv *priv)
 	 */
 	IWL_DEBUG_INFO(priv, "perform radio reset.\n");
 	iwl_internal_short_hw_scan(priv);
-	return;
 }
 
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 732590f5fe30c..36940a9ec6b93 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -506,7 +506,7 @@ void iwl_init_scan_params(struct iwl_priv *priv);
 int iwl_scan_cancel(struct iwl_priv *priv);
 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 int iwl_mac_hw_scan(struct ieee80211_hw *hw, struct cfg80211_scan_request *req);
-int iwl_internal_short_hw_scan(struct iwl_priv *priv);
+void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 int iwl_force_reset(struct iwl_priv *priv, int mode);
 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 		       const u8 *ie, int ie_len, int left);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 6054c5fba0c1d..ef1720a852e99 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1296,6 +1296,7 @@ struct iwl_priv {
 	struct work_struct tt_work;
 	struct work_struct ct_enter;
 	struct work_struct ct_exit;
+	struct work_struct start_internal_scan;
 
 	struct tasklet_struct irq_tasklet;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index bd2f7c4205636..5062f4ebb6a9d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -469,6 +469,8 @@ EXPORT_SYMBOL(iwl_init_scan_params);
 
 static int iwl_scan_initiate(struct iwl_priv *priv)
 {
+	WARN_ON(!mutex_is_locked(&priv->mutex));
+
 	IWL_DEBUG_INFO(priv, "Starting scan...\n");
 	set_bit(STATUS_SCANNING, &priv->status);
 	priv->is_internal_short_scan = false;
@@ -546,24 +548,31 @@ EXPORT_SYMBOL(iwl_mac_hw_scan);
  * internal short scan, this function should only been called while associated.
  * It will reset and tune the radio to prevent possible RF related problem
  */
-int iwl_internal_short_hw_scan(struct iwl_priv *priv)
+void iwl_internal_short_hw_scan(struct iwl_priv *priv)
 {
-	int ret = 0;
+	queue_work(priv->workqueue, &priv->start_internal_scan);
+}
+
+static void iwl_bg_start_internal_scan(struct work_struct *work)
+{
+	struct iwl_priv *priv =
+		container_of(work, struct iwl_priv, start_internal_scan);
+
+	mutex_lock(&priv->mutex);
 
 	if (!iwl_is_ready_rf(priv)) {
-		ret = -EIO;
 		IWL_DEBUG_SCAN(priv, "not ready or exit pending\n");
-		goto out;
+		goto unlock;
 	}
+
 	if (test_bit(STATUS_SCANNING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
-		ret = -EAGAIN;
-		goto out;
+		goto unlock;
 	}
+
 	if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Scan request while abort pending\n");
-		ret = -EAGAIN;
-		goto out;
+		goto unlock;
 	}
 
 	priv->scan_bands = 0;
@@ -576,9 +585,8 @@ int iwl_internal_short_hw_scan(struct iwl_priv *priv)
 	set_bit(STATUS_SCANNING, &priv->status);
 	priv->is_internal_short_scan = true;
 	queue_work(priv->workqueue, &priv->request_scan);
-
-out:
-	return ret;
+ unlock:
+	mutex_unlock(&priv->mutex);
 }
 EXPORT_SYMBOL(iwl_internal_short_hw_scan);
 
@@ -964,6 +972,7 @@ void iwl_setup_scan_deferred_work(struct iwl_priv *priv)
 	INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
 	INIT_WORK(&priv->request_scan, iwl_bg_request_scan);
 	INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);
+	INIT_WORK(&priv->start_internal_scan, iwl_bg_start_internal_scan);
 	INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
 }
 EXPORT_SYMBOL(iwl_setup_scan_deferred_work);

From f2fa1b015e9c199e45c836c769d94db595150731 Mon Sep 17 00:00:00 2001
From: Shanyu Zhao <shanyu.zhao@intel.com>
Date: Wed, 7 Apr 2010 18:37:52 -0700
Subject: [PATCH 202/464] iwlwifi: correct 6000 EEPROM regulatory address

For 6000 series, the 2.4G HT40 band regulatory settings address in EEPROM
was off by 2.

Before the fix, you'll see this in dmesg:
[79535.788877] ieee80211 phy8: U iwl_mod_ht40_chan_info HT40 Ch. 7 [2.4GHz]
WIDE (0x61 0dBm): Ad-Hoc not supported
[79535.788880] ieee80211 phy8: U iwl_mod_ht40_chan_info HT40 Ch. 11 [2.4GHz]
WIDE (0x61 0dBm): Ad-Hoc not supported

And after the fix:
[91132.688706] ieee80211 phy14: U iwl_mod_ht40_chan_info HT40 Ch. 7 [2.4GHz]
IBSS ACTIVE WIDE (0x6f 0dBm): Ad-Hoc supported
[91132.688709] ieee80211 phy14: U iwl_mod_ht40_chan_info HT40 Ch. 11 [2.4GHz]
IBSS ACTIVE WIDE (0x6f 0dBm): Ad-Hoc supported

Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-6000.c   | 4 ++--
 drivers/net/wireless/iwlwifi/iwl-eeprom.h | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index c4844adff92a3..92b3e64fc14dd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -259,7 +259,7 @@ static struct iwl_lib_ops iwl6000_lib = {
 			EEPROM_5000_REG_BAND_3_CHANNELS,
 			EEPROM_5000_REG_BAND_4_CHANNELS,
 			EEPROM_5000_REG_BAND_5_CHANNELS,
-			EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
+			EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
 			EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
@@ -323,7 +323,7 @@ static struct iwl_lib_ops iwl6050_lib = {
 			EEPROM_5000_REG_BAND_3_CHANNELS,
 			EEPROM_5000_REG_BAND_4_CHANNELS,
 			EEPROM_5000_REG_BAND_5_CHANNELS,
-			EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
+			EEPROM_6000_REG_BAND_24_HT40_CHANNELS,
 			EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index 4e1ba824dc505..8171c701e4e15 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -203,6 +203,10 @@ struct iwl_eeprom_enhanced_txpwr {
 #define EEPROM_5000_REG_BAND_52_HT40_CHANNELS  ((0x92)\
 		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 22  bytes */
 
+/* 6000 regulatory - indirect access */
+#define EEPROM_6000_REG_BAND_24_HT40_CHANNELS  ((0x80)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 14  bytes */
+
 /* 6000 and up regulatory tx power - indirect access */
 /* max. elements per section */
 #define EEPROM_MAX_TXPOWER_SECTION_ELEMENTS	(8)

From 31f634a63de7068c6a5dcb0d7b09b24b61a5cf88 Mon Sep 17 00:00:00 2001
From: Krzysztof Halasa <khc@pm.waw.pl>
Date: Wed, 14 Apr 2010 14:09:52 +0000
Subject: [PATCH 203/464] WAN: flush tx_queue in hdlc_ppp to prevent panic on
 rmmod hw_driver.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

tx_queue is used as a temporary queue when not allowed to queue skb
directly to the hw device driver (which may sleep). Most paths flush
it before returning, but ppp_start() currently cannot. Make sure we
don't leave skbs pointing to a non-existent device.

Thanks to Michael Barkowski for reporting this problem.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wan/hdlc_ppp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c
index b9b9d6b01c0ba..941f053e650e5 100644
--- a/drivers/net/wan/hdlc_ppp.c
+++ b/drivers/net/wan/hdlc_ppp.c
@@ -628,9 +628,15 @@ static void ppp_stop(struct net_device *dev)
 	ppp_cp_event(dev, PID_LCP, STOP, 0, 0, 0, NULL);
 }
 
+static void ppp_close(struct net_device *dev)
+{
+	ppp_tx_flush();
+}
+
 static struct hdlc_proto proto = {
 	.start		= ppp_start,
 	.stop		= ppp_stop,
+	.close		= ppp_close,
 	.type_trans	= ppp_type_trans,
 	.ioctl		= ppp_ioctl,
 	.netif_rx	= ppp_rx,

From 1c4f0197323254e463b642abf2c8361e2a924859 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@free.fr>
Date: Wed, 14 Apr 2010 23:11:14 +0000
Subject: [PATCH 204/464] packet : remove init_net restriction

The af_packet protocol is used by Perl to do ioctls as reported by
Stephane Riviere:

"Net::RawIP relies on SIOCGIFADDR et SIOCGIFHWADDR to get the IP and MAC
addresses of the network interface."

But in a new network namespace these ioctl fail because it is disabled for
a namespace different from the init_net_ns.

These two lines should not be there as af_inet and af_packet are
namespace aware since a long time now. I suppose we forget to remove these
lines because we sent the af_packet first, before af_inet was supported.

Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
Reported-by: Stephane Riviere <stephane.riviere@regis-dgac.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/packet/af_packet.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index cc90363d7e7a8..243946d4809d0 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2169,8 +2169,6 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
 	case SIOCGIFDSTADDR:
 	case SIOCSIFDSTADDR:
 	case SIOCSIFFLAGS:
-		if (!net_eq(sock_net(sk), &init_net))
-			return -ENOIOCTLCMD;
 		return inet_dgram_ops.ioctl(sock, cmd, arg);
 #endif
 

From a8408c17d0038b76a83affb1b56dc18fa1e7ed86 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Sat, 17 Apr 2010 17:37:33 +0200
Subject: [PATCH 205/464] pcmcia: avoid late calls to pccard_validate_cis

pccard_validate_cis() nowadays destroys the CIS cache. Therefore,
calling it after card setup should be avoided. We can't control
the deprecated PCMCIA ioctl (which is only used on ARM nowadays),
but we can avoid -- and report -- any other calls.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/cistpl.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index f230f6543bffe..854959cada3ae 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -1484,6 +1484,11 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info)
 	if (!s)
 		return -EINVAL;
 
+	if (s->functions) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
 	/* We do not want to validate the CIS cache... */
 	mutex_lock(&s->ops_mutex);
 	destroy_cis_cache(s);
@@ -1639,7 +1644,7 @@ static ssize_t pccard_show_cis(struct kobject *kobj,
 		count = 0;
 	else {
 		struct pcmcia_socket *s;
-		unsigned int chains;
+		unsigned int chains = 1;
 
 		if (off + count > size)
 			count = size - off;
@@ -1648,7 +1653,7 @@ static ssize_t pccard_show_cis(struct kobject *kobj,
 
 		if (!(s->state & SOCKET_PRESENT))
 			return -ENODEV;
-		if (pccard_validate_cis(s, &chains))
+		if (!s->functions && pccard_validate_cis(s, &chains))
 			return -EIO;
 		if (!chains)
 			return -ENODATA;

From 6f4567c8cf64d1887c8e993bbf066465262b392f Mon Sep 17 00:00:00 2001
From: Timur Maximov <xcom.org@gmail.com>
Date: Wed, 14 Apr 2010 19:06:57 +0400
Subject: [PATCH 206/464] serial_cs: MD55x support (PCMCIA GPRS/EDGE modem)
 (kernel 2.6.33)

Many PCMCIA GPRS modems like: Onda Edge N100E, Novaway PC98 (OEM SPC98Z),
Rovermate Edgus Adaptmate-039 and others have same construction and
identification:

lspcmcia -vvv
Product Name:   Generic Modem: MD55x 1.00 Serial number: xxxxx-xxx
Identification: manf_id: 0x015d card_id: 0x4c45
                function: 2 (serial)
                prod_id(1): "Generic" (0xc49e4731)
                prod_id(2): "Modem: MD55x" (0x8913b110)
                prod_id(3): "1.00" (0x83dbf271)
                prod_id(4): "Serial number: xxxxx-xxx" (0x73ee9514)

Serial connection to GSM module based on Elan VPU16551 PCMCIA UART with
datasheet recommeded 14.7456MHz crystal oscillator.

By default serial_cs set UART clock == 1843200 Hz
For correct work need set clock 14745600 Hz.
This quirk already present in driver, only need add device in quirk list.

Signed-off-by: Timur Maximov <xcom.org@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/serial/serial_cs.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index 175d202ab37ee..8cfa5b12ea7a7 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -105,6 +105,10 @@ struct serial_cfg_mem {
  * manfid 0x0160, 0x0104
  * This card appears to have a 14.7456MHz clock.
  */
+/* Generic Modem: MD55x (GPRS/EDGE) have
+ * Elan VPU16551 UART with 14.7456MHz oscillator
+ * manfid 0x015D, 0x4C45
+ */
 static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port)
 {
 	port->uartclk = 14745600;
@@ -195,6 +199,11 @@ static const struct serial_quirk quirks[] = {
 		.prodid	= 0x0104,
 		.multi	= -1,
 		.setup	= quirk_setup_brainboxes_0104,
+	}, {
+		.manfid	= 0x015D,
+		.prodid	= 0x4C45,
+		.multi	= -1,
+		.setup	= quirk_setup_brainboxes_0104,
 	}, {
 		.manfid	= MANFID_IBM,
 		.prodid	= ~0,

From 42d284b986105a6ed5ac386818cae093532b2c55 Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Mon, 29 Mar 2010 17:35:24 +0200
Subject: [PATCH 207/464] drivers/pcmcia: Add missing local_irq_restore

Use local_irq_restore in this error-handling case just like in the one just
below.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E1;
identifier f;
@@

f (...) { <+...
* local_irq_save (E1,...);
... when != E1
* return ...;
...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/db1xxx_ss.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c
index 6206408e196cd..2d48196a48cd4 100644
--- a/drivers/pcmcia/db1xxx_ss.c
+++ b/drivers/pcmcia/db1xxx_ss.c
@@ -166,8 +166,10 @@ static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock)
 
 		ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq,
 				  IRQF_DISABLED, "pcmcia_insert", sock);
-		if (ret)
+		if (ret) {
+			local_irq_restore(flags);
 			goto out1;
+		}
 
 		ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq,
 				  IRQF_DISABLED, "pcmcia_eject", sock);

From b8639077abf034824046ed09e779b74c4393031f Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Sat, 17 Apr 2010 19:54:27 +0200
Subject: [PATCH 208/464] [LogFS] Set s_bdi

Since 32a88aa1 sync() was turned into a NOP for logfs.  Worse, sync()
would not return an error, giving the illusion that writeout had
actually happened.

Afaics jffs2 was broken as well.

Signed-off-by: Joern Engel <joern@logfs.org>
---
 fs/logfs/super.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index d4531eb46d0a7..dacce3a917aef 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -11,6 +11,7 @@
  */
 #include "logfs.h"
 #include <linux/bio.h>
+#include <linux/blkdev.h>
 #include <linux/mtd/mtd.h>
 #include <linux/statfs.h>
 #include <linux/buffer_head.h>
@@ -136,6 +137,10 @@ static int logfs_sb_set(struct super_block *sb, void *_super)
 	sb->s_fs_info = super;
 	sb->s_mtd = super->s_mtd;
 	sb->s_bdev = super->s_bdev;
+	if (sb->s_bdev)
+		sb->s_bdi = &bdev_get_queue(sb->s_bdev)->backing_dev_info;
+	if (sb->s_mtd)
+		sb->s_bdi = sb->s_mtd->backing_dev_info;
 	return 0;
 }
 

From b91ecb0027c7171c83d7cf443a22c39b1fde6d83 Mon Sep 17 00:00:00 2001
From: Tilman Schmidt <tilman@imap.cc>
Date: Fri, 16 Apr 2010 12:08:58 +0000
Subject: [PATCH 209/464] gigaset: include cleanup cleanup

Commit 5a0e3ad causes slab.h to be included twice in many of the
Gigaset driver's source files, first via the common include file
gigaset.h and then a second time directly. Drop the spares, and
use the opportunity to clean up a few more similar cases.

Impact: cleanup, no functional change
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
CC: Tejun Heo <tj@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/gigaset/bas-gigaset.c | 5 -----
 drivers/isdn/gigaset/capi.c        | 2 --
 drivers/isdn/gigaset/common.c      | 2 --
 drivers/isdn/gigaset/gigaset.h     | 2 +-
 drivers/isdn/gigaset/i4l.c         | 1 -
 drivers/isdn/gigaset/interface.c   | 1 -
 drivers/isdn/gigaset/proc.c        | 1 -
 drivers/isdn/gigaset/ser-gigaset.c | 3 ---
 drivers/isdn/gigaset/usb-gigaset.c | 4 ----
 9 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index 0be15c70c16d6..47a5ffec55a39 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -14,11 +14,6 @@
  */
 
 #include "gigaset.h"
-
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/timer.h>
 #include <linux/usb.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index eb7e27105a828..964a55fb14860 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -12,8 +12,6 @@
  */
 
 #include "gigaset.h"
-#include <linux/slab.h>
-#include <linux/ctype.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/isdn/capilli.h>
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index 0b39b387c1253..f6f45f2219209 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -14,10 +14,8 @@
  */
 
 #include "gigaset.h"
-#include <linux/ctype.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/slab.h>
 
 /* Version Information */
 #define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Tilman Schmidt <tilman@imap.cc>, Stefan Eilers"
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 9ef5b0463fd50..d32efb6510429 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -22,9 +22,9 @@
 #include <linux/kernel.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
+#include <linux/ctype.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/usb.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <linux/ppp_defs.h>
diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c
index c99fb9790a13b..c22e5ace8276a 100644
--- a/drivers/isdn/gigaset/i4l.c
+++ b/drivers/isdn/gigaset/i4l.c
@@ -15,7 +15,6 @@
 
 #include "gigaset.h"
 #include <linux/isdnif.h>
-#include <linux/slab.h>
 
 #define HW_HDR_LEN	2	/* Header size used to store ack info */
 
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index f0dc6c9cc2836..c9f28dd40d5c4 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -13,7 +13,6 @@
 
 #include "gigaset.h"
 #include <linux/gigaset_dev.h>
-#include <linux/tty.h>
 #include <linux/tty_flip.h>
 
 /*** our ioctls ***/
diff --git a/drivers/isdn/gigaset/proc.c b/drivers/isdn/gigaset/proc.c
index b69f73a0668f9..b943efbff44de 100644
--- a/drivers/isdn/gigaset/proc.c
+++ b/drivers/isdn/gigaset/proc.c
@@ -14,7 +14,6 @@
  */
 
 #include "gigaset.h"
-#include <linux/ctype.h>
 
 static ssize_t show_cidmode(struct device *dev,
 			    struct device_attribute *attr, char *buf)
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index 8b0afd203a073..e96c0586886c1 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -11,13 +11,10 @@
  */
 
 #include "gigaset.h"
-
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/platform_device.h>
-#include <linux/tty.h>
 #include <linux/completion.h>
-#include <linux/slab.h>
 
 /* Version Information */
 #define DRIVER_AUTHOR "Tilman Schmidt"
diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
index 9430a2bbb523b..76dbb20f3065a 100644
--- a/drivers/isdn/gigaset/usb-gigaset.c
+++ b/drivers/isdn/gigaset/usb-gigaset.c
@@ -16,10 +16,6 @@
  */
 
 #include "gigaset.h"
-
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
 #include <linux/usb.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>

From 8f4695ed1c9e068772bcce4cd4ff03f88d57a008 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Fri, 16 Apr 2010 18:20:57 -0400
Subject: [PATCH 210/464] drm/i915: Attempt to fix watermark setup on 85x (v2)

IS_MOBILE() catches 85x, so we'd always try to use the 9xx FIFO sizing;
since there's an explicit 85x version, this seems wrong.

v2: Handle 830m correctly too.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_display.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e7356fb6c9187..c7502b6b16009 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4853,17 +4853,18 @@ static void intel_init_display(struct drm_device *dev)
 		dev_priv->display.update_wm = g4x_update_wm;
 	else if (IS_I965G(dev))
 		dev_priv->display.update_wm = i965_update_wm;
-	else if (IS_I9XX(dev) || IS_MOBILE(dev)) {
+	else if (IS_I9XX(dev)) {
 		dev_priv->display.update_wm = i9xx_update_wm;
 		dev_priv->display.get_fifo_size = i9xx_get_fifo_size;
+	} else if (IS_I85X(dev)) {
+		dev_priv->display.update_wm = i9xx_update_wm;
+		dev_priv->display.get_fifo_size = i85x_get_fifo_size;
 	} else {
-		if (IS_I85X(dev))
-			dev_priv->display.get_fifo_size = i85x_get_fifo_size;
-		else if (IS_845G(dev))
+		dev_priv->display.update_wm = i830_update_wm;
+		if (IS_845G(dev))
 			dev_priv->display.get_fifo_size = i845_get_fifo_size;
 		else
 			dev_priv->display.get_fifo_size = i830_get_fifo_size;
-		dev_priv->display.update_wm = i830_update_wm;
 	}
 }
 

From 5ce8ba7c9279a63f99e1f131602580472b8af968 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Thu, 15 Apr 2010 14:03:30 -0400
Subject: [PATCH 211/464] drm/i915: Fix 82854 PCI ID, and treat it like other
 85X

pci.ids and the datasheet both say it's 358e, not 35e8.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_drv.c | 5 +++--
 drivers/gpu/drm/i915/i915_drv.h | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 0af3dcc85ce96..cc03537bb883e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -69,7 +69,8 @@ const static struct intel_device_info intel_845g_info = {
 };
 
 const static struct intel_device_info intel_i85x_info = {
-	.is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
+	.is_i8xx = 1, .is_i85x = 1, .is_mobile = 1,
+	.cursor_needs_physical = 1,
 };
 
 const static struct intel_device_info intel_i865g_info = {
@@ -151,7 +152,7 @@ const static struct pci_device_id pciidlist[] = {
 	INTEL_VGA_DEVICE(0x3577, &intel_i830_info),
 	INTEL_VGA_DEVICE(0x2562, &intel_845g_info),
 	INTEL_VGA_DEVICE(0x3582, &intel_i85x_info),
-	INTEL_VGA_DEVICE(0x35e8, &intel_i85x_info),
+	INTEL_VGA_DEVICE(0x358e, &intel_i85x_info),
 	INTEL_VGA_DEVICE(0x2572, &intel_i865g_info),
 	INTEL_VGA_DEVICE(0x2582, &intel_i915g_info),
 	INTEL_VGA_DEVICE(0x258a, &intel_i915g_info),
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6960849522f8b..051b167e60acd 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -195,6 +195,7 @@ struct intel_overlay;
 struct intel_device_info {
 	u8 is_mobile : 1;
 	u8 is_i8xx : 1;
+	u8 is_i85x : 1;
 	u8 is_i915g : 1;
 	u8 is_i9xx : 1;
 	u8 is_i945gm : 1;
@@ -1070,7 +1071,7 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 
 #define IS_I830(dev)		((dev)->pci_device == 0x3577)
 #define IS_845G(dev)		((dev)->pci_device == 0x2562)
-#define IS_I85X(dev)		((dev)->pci_device == 0x3582)
+#define IS_I85X(dev)		(INTEL_INFO(dev)->is_i85x)
 #define IS_I865G(dev)		((dev)->pci_device == 0x2572)
 #define IS_GEN2(dev)		(INTEL_INFO(dev)->is_i8xx)
 #define IS_I915G(dev)		(INTEL_INFO(dev)->is_i915g)

From 3143751ff51a163b77f7efd389043e038f3e008e Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Mon, 29 Mar 2010 15:12:16 +0800
Subject: [PATCH 212/464] drm/i915: set DIDL using the ACPI video output device
 _ADR method return.

we used to set the DIDL in the output device detected order.
But some BIOSes requires it to be initialized in the ACPI device order.
e.g. the value of the first field in DIDL stands for the first
ACPI video output device in ACPI namespace.

Now we initialize the DIDL using the device id, i.e. _ADR return value,
of each ACPI video device, if it is not 0.
https://bugzilla.kernel.org/show_bug.cgi?id=15054

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_opregion.c | 54 +++++++++++++++++++++++++---
 1 file changed, 50 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c
index 7cc8410239cb7..8fcc75c1aa283 100644
--- a/drivers/gpu/drm/i915/i915_opregion.c
+++ b/drivers/gpu/drm/i915/i915_opregion.c
@@ -382,8 +382,57 @@ static void intel_didl_outputs(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_opregion *opregion = &dev_priv->opregion;
 	struct drm_connector *connector;
+	acpi_handle handle;
+	struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL;
+	unsigned long long device_id;
+	acpi_status status;
 	int i = 0;
 
+	handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
+	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &acpi_dev)))
+		return;
+
+	if (acpi_is_video_device(acpi_dev))
+		acpi_video_bus = acpi_dev;
+	else {
+		list_for_each_entry(acpi_cdev, &acpi_dev->children, node) {
+			if (acpi_is_video_device(acpi_cdev)) {
+				acpi_video_bus = acpi_cdev;
+				break;
+			}
+		}
+	}
+
+	if (!acpi_video_bus) {
+		printk(KERN_WARNING "No ACPI video bus found\n");
+		return;
+	}
+
+	list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) {
+		if (i >= 8) {
+			dev_printk (KERN_ERR, &dev->pdev->dev,
+				    "More than 8 outputs detected\n");
+			return;
+		}
+		status =
+			acpi_evaluate_integer(acpi_cdev->handle, "_ADR",
+						NULL, &device_id);
+		if (ACPI_SUCCESS(status)) {
+			if (!device_id)
+				goto blind_set;
+			opregion->acpi->didl[i] = (u32)(device_id & 0x0f0f);
+			i++;
+		}
+	}
+
+end:
+	/* If fewer than 8 outputs, the list must be null terminated */
+	if (i < 8)
+		opregion->acpi->didl[i] = 0;
+	return;
+
+blind_set:
+	i = 0;
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		int output_type = ACPI_OTHER_OUTPUT;
 		if (i >= 8) {
@@ -416,10 +465,7 @@ static void intel_didl_outputs(struct drm_device *dev)
 		opregion->acpi->didl[i] |= (1<<31) | output_type | i;
 		i++;
 	}
-
-	/* If fewer than 8 outputs, the list must be null terminated */
-	if (i < 8)
-		opregion->acpi->didl[i] = 0;
+	goto end;
 }
 
 int intel_opregion_init(struct drm_device *dev, int resume)

From c36a2a6de59e4a141a68b7575de837d3b0bd96b3 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sat, 17 Apr 2010 15:12:03 +0200
Subject: [PATCH 213/464] drm/i915: fix tiling limits for i915 class hw v2

Current code is definitely crap: Largest pitch allowed spills into
the TILING_Y bit of the fence registers ... :(

I've rewritten the limits check under the assumption that 3rd gen hw
has a 3d pitch limit of 8kb (like 2nd gen). This is supported by an
otherwise totally misleading XXX comment.

This bug mostly resulted in tiling-corrupted pixmaps because the kernel
allowed too wide buffers to be tiled. Bug brought to the light by the
xf86-video-intel 2.11 release because that unconditionally enabled
tiling for pixmaps, relying on the kernel to check things. Tiling for
the framebuffer was not affected because the ddx does some additional
checks there ensure the buffer is within hw-limits.

v2: Instead of computing the value that would be written into the
hw fence registers and then checking the limits simply check whether
the stride is above the 8kb limit. To better document the hw, add
some WARN_ONs in i915_write_fence_reg like I've done for the i830
case (using the right limits).

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=27449
Tested-by: Alexander Lam <lambchop468@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_gem.c        |  6 ++++++
 drivers/gpu/drm/i915/i915_gem_tiling.c | 22 +++++++++-------------
 drivers/gpu/drm/i915/i915_reg.h        |  2 +-
 3 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 80871c62a5710..8a8771711ceff 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2362,6 +2362,12 @@ static void i915_write_fence_reg(struct drm_i915_fence_reg *reg)
 	pitch_val = obj_priv->stride / tile_width;
 	pitch_val = ffs(pitch_val) - 1;
 
+	if (obj_priv->tiling_mode == I915_TILING_Y &&
+	    HAS_128_BYTE_Y_TILING(dev))
+		WARN_ON(pitch_val > I830_FENCE_MAX_PITCH_VAL);
+	else
+		WARN_ON(pitch_val > I915_FENCE_MAX_PITCH_VAL);
+
 	val = obj_priv->gtt_offset;
 	if (obj_priv->tiling_mode == I915_TILING_Y)
 		val |= 1 << I830_FENCE_TILING_Y_SHIFT;
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 449157f716106..4bdccefcf2cf7 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -202,21 +202,17 @@ i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode)
 		 * reg, so dont bother to check the size */
 		if (stride / 128 > I965_FENCE_MAX_PITCH_VAL)
 			return false;
-	} else if (IS_I9XX(dev)) {
-		uint32_t pitch_val = ffs(stride / tile_width) - 1;
-
-		/* XXX: For Y tiling, FENCE_MAX_PITCH_VAL is actually 6 (8KB)
-		 * instead of 4 (2KB) on 945s.
-		 */
-		if (pitch_val > I915_FENCE_MAX_PITCH_VAL ||
-		    size > (I830_FENCE_MAX_SIZE_VAL << 20))
+	} else if (IS_GEN3(dev) || IS_GEN2(dev)) {
+		if (stride > 8192)
 			return false;
-	} else {
-		uint32_t pitch_val = ffs(stride / tile_width) - 1;
 
-		if (pitch_val > I830_FENCE_MAX_PITCH_VAL ||
-		    size > (I830_FENCE_MAX_SIZE_VAL << 19))
-			return false;
+		if (IS_GEN3(dev)) {
+			if (size > I830_FENCE_MAX_SIZE_VAL << 20)
+				return false;
+		} else {
+			if (size > I830_FENCE_MAX_SIZE_VAL << 19)
+				return false;
+		}
 	}
 
 	/* 965+ just needs multiples of tile width */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index cbbf59f56dfa9..773c1adb25410 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -241,7 +241,7 @@
 #define   I830_FENCE_SIZE_BITS(size)	((ffs((size) >> 19) - 1) << 8)
 #define   I830_FENCE_PITCH_SHIFT	4
 #define   I830_FENCE_REG_VALID		(1<<0)
-#define   I915_FENCE_MAX_PITCH_VAL	0x10
+#define   I915_FENCE_MAX_PITCH_VAL	4
 #define   I830_FENCE_MAX_PITCH_VAL	6
 #define   I830_FENCE_MAX_SIZE_VAL	(1<<8)
 

From 1b5331d9c6ae1f68db6359d227531ec42bc40d47 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@redhat.com>
Date: Mon, 12 Apr 2010 20:21:53 +0000
Subject: [PATCH 214/464] drm/radeon/kms: print GPU family and device id when
 loading

This will help figuring out GPU when looking at bugs log.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_device.c | 53 +++++++++++++++++++++++++-
 drivers/gpu/drm/radeon/radeon_family.h |  3 +-
 2 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 60ec47b716421..5e03b14931efa 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -35,6 +35,54 @@
 #include "radeon.h"
 #include "atom.h"
 
+static const char radeon_family_name[][16] = {
+	"R100",
+	"RV100",
+	"RS100",
+	"RV200",
+	"RS200",
+	"R200",
+	"RV250",
+	"RS300",
+	"RV280",
+	"R300",
+	"R350",
+	"RV350",
+	"RV380",
+	"R420",
+	"R423",
+	"RV410",
+	"RS400",
+	"RS480",
+	"RS600",
+	"RS690",
+	"RS740",
+	"RV515",
+	"R520",
+	"RV530",
+	"RV560",
+	"RV570",
+	"R580",
+	"R600",
+	"RV610",
+	"RV630",
+	"RV670",
+	"RV620",
+	"RV635",
+	"RS780",
+	"RS880",
+	"RV770",
+	"RV730",
+	"RV710",
+	"RV740",
+	"CEDAR",
+	"REDWOOD",
+	"JUNIPER",
+	"CYPRESS",
+	"HEMLOCK",
+	"LAST",
+};
+
 /*
  * Clear GPU surface registers.
  */
@@ -525,7 +573,6 @@ int radeon_device_init(struct radeon_device *rdev,
 	int r;
 	int dma_bits;
 
-	DRM_INFO("radeon: Initializing kernel modesetting.\n");
 	rdev->shutdown = false;
 	rdev->dev = &pdev->dev;
 	rdev->ddev = ddev;
@@ -537,6 +584,10 @@ int radeon_device_init(struct radeon_device *rdev,
 	rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 	rdev->gpu_lockup = false;
 	rdev->accel_working = false;
+
+	DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X).\n",
+		radeon_family_name[rdev->family], pdev->vendor, pdev->device);
+
 	/* mutex initialization are all done here so we
 	 * can recall function without having locking issues */
 	mutex_init(&rdev->cs_mutex);
diff --git a/drivers/gpu/drm/radeon/radeon_family.h b/drivers/gpu/drm/radeon/radeon_family.h
index 93c7d5d419141..e329066dcabd4 100644
--- a/drivers/gpu/drm/radeon/radeon_family.h
+++ b/drivers/gpu/drm/radeon/radeon_family.h
@@ -36,7 +36,7 @@
  * Radeon chip families
  */
 enum radeon_family {
-	CHIP_R100,
+	CHIP_R100 = 0,
 	CHIP_RV100,
 	CHIP_RS100,
 	CHIP_RV200,
@@ -99,4 +99,5 @@ enum radeon_chip_flags {
 	RADEON_IS_PCI = 0x00800000UL,
 	RADEON_IS_IGPGART = 0x01000000UL,
 };
+
 #endif

From 30f69f3fb20bd719b5e1bf879339914063d38f47 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@redhat.com>
Date: Fri, 16 Apr 2010 18:46:35 +0200
Subject: [PATCH 215/464] drm/radeon/kms: fix rs600 tlb flush

Typo in in flush leaded to no flush of the RS600 tlb which
ultimately leaded to massive system ram corruption, with
this patch everythings seems to work properly.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/rs600.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index abf824c2123d5..a81bc7a21e14b 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -159,7 +159,7 @@ void rs600_gart_tlb_flush(struct radeon_device *rdev)
 	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 
 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
-	tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) & S_000100_INVALIDATE_L2_CACHE(1);
+	tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) | S_000100_INVALIDATE_L2_CACHE(1);
 	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 
 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);

From b317a9ce2259e64258a802a5ca70dec45ac15dda Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Thu, 15 Apr 2010 16:54:38 -0400
Subject: [PATCH 216/464] drm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0

Got broken during the evergreen merge.
Fixes fdo bug 27001.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_encoders.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index c52fc3080b677..9f7f56a55f0a7 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -865,6 +865,8 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 		else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
 			if (dig->coherent_mode)
 				args.v3.acConfig.fCoherentMode = 1;
+			if (radeon_encoder->pixel_clock > 165000)
+				args.v3.acConfig.fDualLinkConnector = 1;
 		}
 	} else if (ASIC_IS_DCE32(rdev)) {
 		args.v2.acConfig.ucEncoderSel = dig->dig_encoder;
@@ -888,6 +890,8 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 		else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
 			if (dig->coherent_mode)
 				args.v2.acConfig.fCoherentMode = 1;
+			if (radeon_encoder->pixel_clock > 165000)
+				args.v2.acConfig.fDualLinkConnector = 1;
 		}
 	} else {
 		args.v1.ucConfig = ATOM_TRANSMITTER_CONFIG_CLKSRC_PPLL;

From 16823d16f55afc303af7864b9a055d8a1c012e1b Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Fri, 16 Apr 2010 11:35:30 -0400
Subject: [PATCH 217/464] drm/radeon/kms/evergreen: don't enable hdmi audio
 stuff

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r600_audio.c | 2 +-
 drivers/gpu/drm/radeon/r600_hdmi.c  | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/r600_audio.c b/drivers/gpu/drm/radeon/r600_audio.c
index dac7042b797e0..1d898051c6310 100644
--- a/drivers/gpu/drm/radeon/r600_audio.c
+++ b/drivers/gpu/drm/radeon/r600_audio.c
@@ -35,7 +35,7 @@
  */
 static int r600_audio_chipset_supported(struct radeon_device *rdev)
 {
-	return rdev->family >= CHIP_R600
+	return (rdev->family >= CHIP_R600 && rdev->family < CHIP_CEDAR)
 		|| rdev->family == CHIP_RS600
 		|| rdev->family == CHIP_RS690
 		|| rdev->family == CHIP_RS740;
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 029fa1406d1d4..2616b822ba682 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -314,6 +314,9 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
 	struct radeon_device *rdev = dev->dev_private;
 	uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
 
+	if (ASIC_IS_DCE4(rdev))
+		return;
+
 	if (!offset)
 		return;
 
@@ -484,6 +487,9 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 
+	if (ASIC_IS_DCE4(rdev))
+		return;
+
 	if (!radeon_encoder->hdmi_offset) {
 		r600_hdmi_assign_block(encoder);
 		if (!radeon_encoder->hdmi_offset) {
@@ -525,6 +531,9 @@ void r600_hdmi_disable(struct drm_encoder *encoder)
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 
+	if (ASIC_IS_DCE4(rdev))
+		return;
+
 	if (!radeon_encoder->hdmi_offset) {
 		dev_err(rdev->dev, "Disabling not enabled HDMI\n");
 		return;

From 08d075116db3592db218bfe0f554cd93c9e12505 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Thu, 15 Apr 2010 13:31:12 -0400
Subject: [PATCH 218/464] drm/radeon/kms: fix tv dac conflict resolver

On systems with the tv dac shared between DVI and TV,
we can only use the dac for one of the connectors.
However, when using a digital monitor on the DVI port,
you can use the dac for the TV connector just fine.
Check the use_digital status when resolving the conflict.

Fixes fdo bug 27649, possibly others.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_connectors.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 3bc20406d45b7..1331351c51786 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -162,12 +162,14 @@ radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_connector *conflict;
+	struct radeon_connector *radeon_conflict;
 	int i;
 
 	list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
 		if (conflict == connector)
 			continue;
 
+		radeon_conflict = to_radeon_connector(conflict);
 		for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 			if (conflict->encoder_ids[i] == 0)
 				break;
@@ -177,6 +179,9 @@ radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
 				if (conflict->status != connector_status_connected)
 					continue;
 
+				if (radeon_conflict->use_digital)
+					continue;
+
 				if (priority == true) {
 					DRM_INFO("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
 					DRM_INFO("in favor of %s\n", drm_get_connector_name(connector));

From a1a4b23b66039c814c3d3a9a28d76d34800eadc5 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Fri, 9 Apr 2010 15:31:56 -0400
Subject: [PATCH 219/464] drm/radeon/kms: adjust pll settings for tv

May fix fdo bug 26582.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/atombios_crtc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index fd4ef6d188496..a87990b3ae841 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -521,6 +521,10 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 				/* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
 				if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
 					adjusted_clock = mode->clock * 2;
+				if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) {
+					pll->algo = PLL_ALGO_LEGACY;
+					pll->flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
+				}
 			} else {
 				if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
 					pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;

From d3a67a43b0460bae3e2ac14092497833344ac10d Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Tue, 13 Apr 2010 11:21:59 -0400
Subject: [PATCH 220/464] drm/radeon/kms: disable the tv encoder when tv/cv is
 not in use

Switching between TV and VGA caused VGA to break on some systems
since the TV encoder was left enabled when VGA was used.

fixes fdo bug 25520.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_encoders.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 9f7f56a55f0a7..30293bec08013 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1377,8 +1377,12 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	case ENCODER_OBJECT_ID_INTERNAL_DAC2:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC2:
 		atombios_dac_setup(encoder, ATOM_ENABLE);
-		if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
-			atombios_tv_setup(encoder, ATOM_ENABLE);
+		if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) {
+			if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
+				atombios_tv_setup(encoder, ATOM_ENABLE);
+			else
+				atombios_tv_setup(encoder, ATOM_DISABLE);
+		}
 		break;
 	}
 	atombios_apply_encoder_quirks(encoder, adjusted_mode);

From f12eebb0acbaa6dcb60ed34451f5b159f509b2c0 Mon Sep 17 00:00:00 2001
From: Corbin Simpson <mostawesomedude@gmail.com>
Date: Sun, 11 Apr 2010 12:34:00 -0700
Subject: [PATCH 221/464] drivers/gpu/radeon: Add MSPOS regs to safe list.

Permits MSAA and D3D-style rasterization.

[airlied: add rs600]

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/reg_srcs/r300  | 2 ++
 drivers/gpu/drm/radeon/reg_srcs/r420  | 2 ++
 drivers/gpu/drm/radeon/reg_srcs/rs600 | 2 ++
 drivers/gpu/drm/radeon/reg_srcs/rv515 | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/radeon/reg_srcs/r300 b/drivers/gpu/drm/radeon/reg_srcs/r300
index 19c4663fa9c69..1e97b2d129fd9 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/r300
+++ b/drivers/gpu/drm/radeon/reg_srcs/r300
@@ -125,6 +125,8 @@ r300 0x4f60
 0x4000 GB_VAP_RASTER_VTX_FMT_0
 0x4004 GB_VAP_RASTER_VTX_FMT_1
 0x4008 GB_ENABLE
+0x4010 GB_MSPOS0
+0x4014 GB_MSPOS1
 0x401C GB_SELECT
 0x4020 GB_AA_CONFIG
 0x4024 GB_FIFO_SIZE
diff --git a/drivers/gpu/drm/radeon/reg_srcs/r420 b/drivers/gpu/drm/radeon/reg_srcs/r420
index 989f7a0208329..e958980d00f19 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/r420
+++ b/drivers/gpu/drm/radeon/reg_srcs/r420
@@ -125,6 +125,8 @@ r420 0x4f60
 0x4000 GB_VAP_RASTER_VTX_FMT_0
 0x4004 GB_VAP_RASTER_VTX_FMT_1
 0x4008 GB_ENABLE
+0x4010 GB_MSPOS0
+0x4014 GB_MSPOS1
 0x401C GB_SELECT
 0x4020 GB_AA_CONFIG
 0x4024 GB_FIFO_SIZE
diff --git a/drivers/gpu/drm/radeon/reg_srcs/rs600 b/drivers/gpu/drm/radeon/reg_srcs/rs600
index 6801b865d1c4f..83e8bc0c2bb24 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/rs600
+++ b/drivers/gpu/drm/radeon/reg_srcs/rs600
@@ -125,6 +125,8 @@ rs600 0x6d40
 0x4000 GB_VAP_RASTER_VTX_FMT_0
 0x4004 GB_VAP_RASTER_VTX_FMT_1
 0x4008 GB_ENABLE
+0x4010 GB_MSPOS0
+0x4014 GB_MSPOS1
 0x401C GB_SELECT
 0x4020 GB_AA_CONFIG
 0x4024 GB_FIFO_SIZE
diff --git a/drivers/gpu/drm/radeon/reg_srcs/rv515 b/drivers/gpu/drm/radeon/reg_srcs/rv515
index 38abf63bf2cd8..7f44adaf22d2b 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/rv515
+++ b/drivers/gpu/drm/radeon/reg_srcs/rv515
@@ -158,6 +158,8 @@ rv515 0x6d40
 0x4000 GB_VAP_RASTER_VTX_FMT_0
 0x4004 GB_VAP_RASTER_VTX_FMT_1
 0x4008 GB_ENABLE
+0x4010 GB_MSPOS0
+0x4014 GB_MSPOS1
 0x401C GB_SELECT
 0x4020 GB_AA_CONFIG
 0x4024 GB_FIFO_SIZE

From cae94b0ad9d147152af77b971a7234faf20027a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <maraeo@gmail.com>
Date: Sun, 21 Feb 2010 21:24:15 +0100
Subject: [PATCH 222/464] drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES
 and VAP_INDEX_OFFSET
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[airlied: fix V_A_N_V to not be safe and fix check to make sure only r500
 - bump userspace version]

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r100.c         |  6 +++++-
 drivers/gpu/drm/radeon/r100_track.h   |  1 +
 drivers/gpu/drm/radeon/r300.c         | 15 +++++++++++----
 drivers/gpu/drm/radeon/radeon_drv.c   |  3 ++-
 drivers/gpu/drm/radeon/reg_srcs/rv515 |  1 +
 5 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index e40dbdc4ebb3b..c06207e4085c8 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3011,7 +3011,11 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track)
 		}
 	}
 	prim_walk = (track->vap_vf_cntl >> 4) & 0x3;
-	nverts = (track->vap_vf_cntl >> 16) & 0xFFFF;
+	if (track->vap_vf_cntl & (1 << 14)) {
+		nverts = track->vap_alt_nverts;
+	} else {
+		nverts = (track->vap_vf_cntl >> 16) & 0xFFFF;
+	}
 	switch (prim_walk) {
 	case 1:
 		for (i = 0; i < track->num_arrays; i++) {
diff --git a/drivers/gpu/drm/radeon/r100_track.h b/drivers/gpu/drm/radeon/r100_track.h
index b27a6999d2193..fadfe68de9cc4 100644
--- a/drivers/gpu/drm/radeon/r100_track.h
+++ b/drivers/gpu/drm/radeon/r100_track.h
@@ -64,6 +64,7 @@ struct r100_cs_track {
 	unsigned			maxy;
 	unsigned			vtx_size;
 	unsigned			vap_vf_cntl;
+	unsigned			vap_alt_nverts;
 	unsigned			immd_dwords;
 	unsigned			num_arrays;
 	unsigned			max_indx;
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 0e9eb761a90f3..2a9b59457556f 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -729,6 +729,12 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		/* VAP_VF_MAX_VTX_INDX */
 		track->max_indx = idx_value & 0x00FFFFFFUL;
 		break;
+	case 0x2088:
+		/* VAP_ALT_NUM_VERTICES - only valid on r500 */
+		if (p->rdev->family < CHIP_RV515)
+			goto fail;
+		track->vap_alt_nverts = idx_value & 0xFFFFFF;
+		break;
 	case 0x43E4:
 		/* SC_SCISSOR1 */
 		track->maxy = ((idx_value >> 13) & 0x1FFF) + 1;
@@ -766,7 +772,6 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		tmp = idx_value & ~(0x7 << 16);
 		tmp |= tile_flags;
 		ib[idx] = tmp;
-
 		i = (reg - 0x4E38) >> 2;
 		track->cb[i].pitch = idx_value & 0x3FFE;
 		switch (((idx_value >> 21) & 0xF)) {
@@ -1051,11 +1056,13 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 			break;
 		/* fallthrough do not move */
 	default:
-		printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
-		       reg, idx);
-		return -EINVAL;
+		goto fail;
 	}
 	return 0;
+fail:
+	printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
+	       reg, idx);
+	return -EINVAL;
 }
 
 static int r300_packet3_check(struct radeon_cs_parser *p,
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 055a51732dcb7..4b05563d99e16 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -43,9 +43,10 @@
  * - 2.0.0 - initial interface
  * - 2.1.0 - add square tiling interface
  * - 2.2.0 - add r6xx/r7xx const buffer support
+ * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	2
+#define KMS_DRIVER_MINOR	3
 #define KMS_DRIVER_PATCHLEVEL	0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);
diff --git a/drivers/gpu/drm/radeon/reg_srcs/rv515 b/drivers/gpu/drm/radeon/reg_srcs/rv515
index 7f44adaf22d2b..1e46233985eb2 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/rv515
+++ b/drivers/gpu/drm/radeon/reg_srcs/rv515
@@ -35,6 +35,7 @@ rv515 0x6d40
 0x1DA8 VAP_VPORT_ZSCALE
 0x1DAC VAP_VPORT_ZOFFSET
 0x2080 VAP_CNTL
+0x208C VAP_INDEX_OFFSET
 0x2090 VAP_OUT_VTX_FMT_0
 0x2094 VAP_OUT_VTX_FMT_1
 0x20B0 VAP_VTE_CNTL

From bc293d62b26ec590afc90a9e0a31c45d355b7bd8 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 15 Apr 2010 12:50:39 -0700
Subject: [PATCH 223/464] rcu: Make RCU lockdep check the lockdep_recursion
 variable

The lockdep facility temporarily disables lockdep checking by
incrementing the current->lockdep_recursion variable.  Such
disabling happens in NMIs and in other situations where lockdep
might expect to recurse on itself.

This patch therefore checks current->lockdep_recursion, disabling RCU
lockdep splats when this variable is non-zero.  In addition, this patch
removes the "likely()", as suggested by Lai Jiangshan.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Reported-by: David Miller <davem@davemloft.net>
Tested-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <20100415195039.GA22623@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/rcupdate.h | 5 +----
 kernel/rcupdate.c        | 7 +++++++
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 9f1ddfef84b50..07db2feb85726 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -101,10 +101,7 @@ extern struct lockdep_map rcu_sched_lock_map;
 # define rcu_read_release_sched() \
 		lock_release(&rcu_sched_lock_map, 1, _THIS_IP_)
 
-static inline int debug_lockdep_rcu_enabled(void)
-{
-	return likely(rcu_scheduler_active && debug_locks);
-}
+extern int debug_lockdep_rcu_enabled(void);
 
 /**
  * rcu_read_lock_held - might we be in RCU read-side critical section?
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 63fe25433980a..03a7ea1579f61 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -69,6 +69,13 @@ EXPORT_SYMBOL_GPL(rcu_scheduler_active);
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 
+int debug_lockdep_rcu_enabled(void)
+{
+	return rcu_scheduler_active && debug_locks &&
+	       current->lockdep_recursion == 0;
+}
+EXPORT_SYMBOL_GPL(debug_lockdep_rcu_enabled);
+
 /**
  * rcu_read_lock_bh_held - might we be in RCU-bh read-side critical section?
  *

From 6c94b1ee0ca2bfb526d779c088ec20da6a3761db Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 19 Apr 2010 01:30:51 -0700
Subject: [PATCH 224/464] sparc64: Fix PREEMPT_ACTIVE value.

It currently overlaps the NMI bit.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/thread_info_64.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 9e2d9447f2ad0..4827a3aeac7f4 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -111,7 +111,7 @@ struct thread_info {
 #define THREAD_SHIFT PAGE_SHIFT
 #endif /* PAGE_SHIFT == 13 */
 
-#define PREEMPT_ACTIVE		0x4000000
+#define PREEMPT_ACTIVE		0x10000000
 
 /*
  * macros/functions for gaining access to the thread information structure

From 7f3c1fa4c3f52ef65005ae5162e5173e875b8c0c Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@web.de>
Date: Mon, 19 Apr 2010 17:46:23 +0900
Subject: [PATCH 225/464] uml: Fix build breakage after slab.h changes

We now have to to include linux/slab.h explicitly for kmalloc &
friends.  Files that build against host headers already get their
prototypes via um_malloc.h, linux/slab.h may even be unavailable.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/um/drivers/line.c    | 1 +
 arch/um/os-Linux/helper.c | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 64cda95f59ca3..7a656bd8bd3c1 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -6,6 +6,7 @@
 #include "linux/irqreturn.h"
 #include "linux/kd.h"
 #include "linux/sched.h"
+#include "linux/slab.h"
 #include "chan_kern.h"
 #include "irq_kern.h"
 #include "irq_user.h"
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index 06d6ccf0e4449..b6b1096152aac 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -8,7 +8,6 @@
 #include <errno.h>
 #include <sched.h>
 #include <linux/limits.h>
-#include <linux/slab.h>
 #include <sys/socket.h>
 #include <sys/wait.h>
 #include "kern_constants.h"

From 79b9517a33a283c5d9db875c263670ed1e055f7e Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 19 Apr 2010 17:54:31 +1000
Subject: [PATCH 226/464] drm/radeon/kms: add FireMV 2400 PCI ID.

This is an M24/X600 chip.

From RH# 581927

cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 include/drm/drm_pciids.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 04a6ebc27b966..2d428b088cc8f 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -6,6 +6,7 @@
 	{0x1002, 0x3150, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
 	{0x1002, 0x3152, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x3154, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x3155, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x3E50, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x3E54, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x4136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS100|RADEON_IS_IGP}, \

From be1a50d4eba4cdb3ebf9d97a0a8693c153436775 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Sat, 3 Apr 2010 17:37:45 +0200
Subject: [PATCH 227/464] regulator: Let drivers know when they use the stub
 API

Have the stub variant of regulator_get() return NULL, so that drivers
can (but still don't have to) handle this case specifically.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
---
 include/linux/regulator/consumer.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 28c9fd020d399..ebd7472652942 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -183,9 +183,13 @@ static inline struct regulator *__must_check regulator_get(struct device *dev,
 {
 	/* Nothing except the stubbed out regulator API should be
 	 * looking at the value except to check if it is an error
-	 * value so the actual return value doesn't matter.
+	 * value. Drivers are free to handle NULL specifically by
+	 * skipping all regulator API calls, but they don't have to.
+	 * Drivers which don't, should make sure they properly handle
+	 * corner cases of the API, such as regulator_get_voltage()
+	 * returning 0.
 	 */
-	return (struct regulator *)id;
+	return NULL;
 }
 static inline void regulator_put(struct regulator *regulator)
 {

From 58d57658834faa0c19da35e84632f7b78846f69f Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@gmail.com>
Date: Mon, 19 Apr 2010 09:58:02 +0800
Subject: [PATCH 228/464] mc13783-regulator: fix a memory leak in
 mc13783_regulator_remove

This patch fixes a memory leak by freeing priv in mc13783_regulator_remove

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
---
 drivers/regulator/mc13783-regulator.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index a681f5e8f7860..ad036dd8da136 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -618,9 +618,12 @@ static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
 		dev_get_platdata(&pdev->dev);
 	int i;
 
+	platform_set_drvdata(pdev, NULL);
+
 	for (i = 0; i < pdata->num_regulators; i++)
 		regulator_unregister(priv->regulators[i]);
 
+	kfree(priv);
 	return 0;
 }
 

From 07a71415d5f790385695784a9b0e554412ee95c3 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Sun, 18 Apr 2010 22:07:33 +0300
Subject: [PATCH 229/464] pcmcia: fix error handling in cm4000_cs.c

In the original code we used -ENODEV as the number of bytes to
copy_to_user() and we didn't release the locks.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/char/pcmcia/cm4000_cs.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index c9bc896d68afe..90b199f97bec5 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -1026,14 +1026,16 @@ static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
 
 	xoutb(0, REG_FLAGS1(iobase));	/* clear detectCMM */
 	/* last check before exit */
-	if (!io_detect_cm4000(iobase, dev))
-		count = -ENODEV;
+	if (!io_detect_cm4000(iobase, dev)) {
+		rc = -ENODEV;
+		goto release_io;
+	}
 
 	if (test_bit(IS_INVREV, &dev->flags) && count > 0)
 		str_invert_revert(dev->rbuf, count);
 
 	if (copy_to_user(buf, dev->rbuf, count))
-		return -EFAULT;
+		rc = -EFAULT;
 
 release_io:
 	clear_bit(LOCK_IO, &dev->flags);

From b7d2526f5c20385894a5e57b1a4292f5a1741f1b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 19 Apr 2010 18:11:29 +0200
Subject: [PATCH 230/464] ALSA: hda - Fix resume from StR of HP 2510p with
 docking-station

When HP laptop with AD1981 codec is suspended and the docking-station
is connected before the resume, the outputs get confused, and wrongly
routed still to the speaker.  This is because of a change in 2.6.34-rc1
ea52bf260ecbb175339af3178c15788df21b7516
    ALSA: hda: Add powerdown for Analog Devices HDA codecs

The problem was the added resume callback that doesn't consider the
modified init hook.  The fix is simply remove the resume callback here
and make the resume normally.  This doesn't change any behavior intended
in the commit above (for shutting down the sound at suspend) but only
fixes the resume.

Reported-and-tested-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_analog.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index af34606c30c34..e9fdfc4b1c57b 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -519,14 +519,6 @@ static int ad198x_suspend(struct hda_codec *codec, pm_message_t state)
 	ad198x_power_eapd(codec);
 	return 0;
 }
-
-static int ad198x_resume(struct hda_codec *codec)
-{
-	ad198x_init(codec);
-	snd_hda_codec_resume_amp(codec);
-	snd_hda_codec_resume_cache(codec);
-	return 0;
-}
 #endif
 
 static struct hda_codec_ops ad198x_patch_ops = {
@@ -539,7 +531,6 @@ static struct hda_codec_ops ad198x_patch_ops = {
 #endif
 #ifdef SND_HDA_NEEDS_RESUME
 	.suspend = ad198x_suspend,
-	.resume = ad198x_resume,
 #endif
 	.reboot_notify = ad198x_shutup,
 };

From 3a1f0a0e3d871e3d3e08a1429009992151becda8 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 12 Apr 2010 10:35:05 +0200
Subject: [PATCH 231/464] firewire: core: fix retries calculation in iso
 manage_channel()

If there is a permanent error condition when communicating with the IRM,
after the sixth error, the retry variable will be decremented to -1.
If, in this case, the bits in channels_mask are not yet exhausted, the
next channel is retried 2^32 times.

To fix this, check that retry is never decremented beyond zero.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/core-iso.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 99c20f1b613ab..34a513725c9ee 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -250,8 +250,10 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
 
 			/* 1394-1995 IRM, fall through to retry. */
 		default:
-			if (retry--)
+			if (retry) {
+				retry--;
 				i--;
+			}
 		}
 	}
 

From d6372b6e7c6142e6cc2108b3b850584cd7ade106 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 12 Apr 2010 10:35:18 +0200
Subject: [PATCH 232/464] firewire: core: fw_iso_resource_manage: return -EBUSY
 when out of resources

Returning -EIO for all errors would not allow clients to determine if
the resource allocation process itself failed, or if the resources are
not available.  (The latter information is needed by CMP to synchronize
restoring of overlayed connections after a bus reset.)

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/core-iso.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 34a513725c9ee..9198e030e8959 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -189,7 +189,7 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation,
 	for (try = 0; try < 5; try++) {
 		new = allocate ? old - bandwidth : old + bandwidth;
 		if (new < 0 || new > BANDWIDTH_AVAILABLE_INITIAL)
-			break;
+			return -EBUSY;
 
 		data[0] = cpu_to_be32(old);
 		data[1] = cpu_to_be32(new);
@@ -217,7 +217,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
 		u32 channels_mask, u64 offset, bool allocate, __be32 data[2])
 {
 	__be32 c, all, old;
-	int i, retry = 5;
+	int i, ret = -EIO, retry = 5;
 
 	old = all = allocate ? cpu_to_be32(~0) : 0;
 
@@ -225,6 +225,8 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
 		if (!(channels_mask & 1 << i))
 			continue;
 
+		ret = -EBUSY;
+
 		c = cpu_to_be32(1 << (31 - i));
 		if ((old & c) != (all & c))
 			continue;
@@ -253,11 +255,13 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
 			if (retry) {
 				retry--;
 				i--;
+			} else {
+				ret = -EIO;
 			}
 		}
 	}
 
-	return -EIO;
+	return ret;
 }
 
 static void deallocate_channel(struct fw_card *card, int irm_id,

From 2608203daf5f87311c6e5d36e5de5efcb14aab24 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 12 Apr 2010 10:35:30 +0200
Subject: [PATCH 233/464] firewire: ohci: prevent aliasing of locally handled
 register addresses

We must compute the offset from the CSR register base with the
full 48 address bits to prevent matching with addresses whose
lower 32 bits happen to be equal with one of the specially
handled registers.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/ohci.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index e33917bf97d28..82fb2e7e99ef3 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -1198,8 +1198,7 @@ static void handle_local_lock(struct fw_ohci *ohci,
 
 static void handle_local_request(struct context *ctx, struct fw_packet *packet)
 {
-	u64 offset;
-	u32 csr;
+	u64 offset, csr;
 
 	if (ctx == &ctx->ohci->at_request_ctx) {
 		packet->ack = ACK_PENDING;

From e1393667be574807a13bfaf1bb471f5fd1a5287b Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 12 Apr 2010 10:35:44 +0200
Subject: [PATCH 234/464] firewire: ohci: wait for local CSR lock access to
 finish

Add a loop to wait for the controller to finish a locally-initiated CSR
lock operation.  Google shows some occurrences of the "swap not done
yet" message which might indicate that some OHCI controllers are not
fast enough to do the lock/swap in the time needed for one PCI access.

This also correctly handles the case where the lock operation did not
finish, instead of silently returning an uninitialized value.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/ohci.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 82fb2e7e99ef3..6e95f8fb56db7 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -1158,7 +1158,7 @@ static void handle_local_lock(struct fw_ohci *ohci,
 			      struct fw_packet *packet, u32 csr)
 {
 	struct fw_packet response;
-	int tcode, length, ext_tcode, sel;
+	int tcode, length, ext_tcode, sel, try;
 	__be32 *payload, lock_old;
 	u32 lock_arg, lock_data;
 
@@ -1185,13 +1185,19 @@ static void handle_local_lock(struct fw_ohci *ohci,
 	reg_write(ohci, OHCI1394_CSRCompareData, lock_arg);
 	reg_write(ohci, OHCI1394_CSRControl, sel);
 
-	if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000)
-		lock_old = cpu_to_be32(reg_read(ohci, OHCI1394_CSRData));
-	else
-		fw_notify("swap not done yet\n");
+	for (try = 0; try < 20; try++)
+		if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000) {
+			lock_old = cpu_to_be32(reg_read(ohci,
+							OHCI1394_CSRData));
+			fw_fill_response(&response, packet->header,
+					 RCODE_COMPLETE,
+					 &lock_old, sizeof(lock_old));
+			goto out;
+		}
+
+	fw_error("swap not done (CSR lock timeout)\n");
+	fw_fill_response(&response, packet->header, RCODE_BUSY, NULL, 0);
 
-	fw_fill_response(&response, packet->header,
-			 RCODE_COMPLETE, &lock_old, sizeof(lock_old));
  out:
 	fw_core_handle_response(&ohci->card, &response);
 }

From 76e506a754c9519ba0a948b475a62f31fac8b599 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 19 Apr 2010 11:53:17 -0700
Subject: [PATCH 235/464] Fix ISDN/Gigaset build failure

Commit b91ecb00 ("gigaset: include cleanup cleanup") removed an implicit
sched.h inclusion that came in via slab.h, and caused various compile
problems as a result.

This should fix it.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/isdn/gigaset/gigaset.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index d32efb6510429..05947f9c18496 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -20,6 +20,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
+#include <linux/sched.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <linux/ctype.h>

From 3a60a1686f0d51c99bd0df8ac93050fb6dfce647 Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Mon, 22 Mar 2010 00:41:35 -0500
Subject: [PATCH 236/464] eCryptfs: Decrypt symlink target for stat size
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Create a getattr handler for eCryptfs symlinks that is capable of
reading the lower target and decrypting its path.  Prior to this patch,
a stat's st_size field would represent the strlen of the encrypted path,
while readlink() would return the strlen of the decrypted path.  This
could lead to confusion in some userspace applications, since the two
values should be equal.

https://bugs.launchpad.net/bugs/524919

Reported-by: Loïc Minier <loic.minier@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/inode.c | 100 +++++++++++++++++++++++---------------------
 1 file changed, 52 insertions(+), 48 deletions(-)

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index ddbd096c74068..605f514f3b47d 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -648,38 +648,17 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	return rc;
 }
 
-static int
-ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
+static int ecryptfs_readlink_lower(struct dentry *dentry, char **buf,
+				   size_t *bufsiz)
 {
+	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	char *lower_buf;
-	size_t lower_bufsiz;
-	struct dentry *lower_dentry;
-	struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
-	char *plaintext_name;
-	size_t plaintext_name_size;
+	size_t lower_bufsiz = PATH_MAX;
 	mm_segment_t old_fs;
 	int rc;
 
-	lower_dentry = ecryptfs_dentry_to_lower(dentry);
-	if (!lower_dentry->d_inode->i_op->readlink) {
-		rc = -EINVAL;
-		goto out;
-	}
-	mount_crypt_stat = &ecryptfs_superblock_to_private(
-						dentry->d_sb)->mount_crypt_stat;
-	/*
-	 * If the lower filename is encrypted, it will result in a significantly
-	 * longer name.  If needed, truncate the name after decode and decrypt.
-	 */
-	if (mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES)
-		lower_bufsiz = PATH_MAX;
-	else
-		lower_bufsiz = bufsiz;
-	/* Released in this function */
 	lower_buf = kmalloc(lower_bufsiz, GFP_KERNEL);
-	if (lower_buf == NULL) {
-		printk(KERN_ERR "%s: Out of memory whilst attempting to "
-		       "kmalloc [%zd] bytes\n", __func__, lower_bufsiz);
+	if (!lower_buf) {
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -689,29 +668,31 @@ ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
 						   (char __user *)lower_buf,
 						   lower_bufsiz);
 	set_fs(old_fs);
-	if (rc >= 0) {
-		rc = ecryptfs_decode_and_decrypt_filename(&plaintext_name,
-							  &plaintext_name_size,
-							  dentry, lower_buf,
-							  rc);
-		if (rc) {
-			printk(KERN_ERR "%s: Error attempting to decode and "
-			       "decrypt filename; rc = [%d]\n", __func__,
-				rc);
-			goto out_free_lower_buf;
-		}
-		/* Check for bufsiz <= 0 done in sys_readlinkat() */
-		rc = copy_to_user(buf, plaintext_name,
-				  min((size_t) bufsiz, plaintext_name_size));
-		if (rc)
-			rc = -EFAULT;
-		else
-			rc = plaintext_name_size;
-		kfree(plaintext_name);
-		fsstack_copy_attr_atime(dentry->d_inode, lower_dentry->d_inode);
-	}
-out_free_lower_buf:
+	if (rc < 0)
+		goto out;
+	lower_bufsiz = rc;
+	rc = ecryptfs_decode_and_decrypt_filename(buf, bufsiz, dentry,
+						  lower_buf, lower_bufsiz);
+out:
 	kfree(lower_buf);
+	return rc;
+}
+
+static int
+ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
+{
+	char *kbuf;
+	size_t kbufsiz, copied;
+	int rc;
+
+	rc = ecryptfs_readlink_lower(dentry, &kbuf, &kbufsiz);
+	if (rc)
+		goto out;
+	copied = min_t(size_t, bufsiz, kbufsiz);
+	rc = copy_to_user(buf, kbuf, copied) ? -EFAULT : copied;
+	kfree(kbuf);
+	fsstack_copy_attr_atime(dentry->d_inode,
+				ecryptfs_dentry_to_lower(dentry)->d_inode);
 out:
 	return rc;
 }
@@ -1016,6 +997,28 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
 	return rc;
 }
 
+int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry,
+			  struct kstat *stat)
+{
+	struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
+	int rc = 0;
+
+	mount_crypt_stat = &ecryptfs_superblock_to_private(
+						dentry->d_sb)->mount_crypt_stat;
+	generic_fillattr(dentry->d_inode, stat);
+	if (mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES) {
+		char *target;
+		size_t targetsiz;
+
+		rc = ecryptfs_readlink_lower(dentry, &target, &targetsiz);
+		if (!rc) {
+			kfree(target);
+			stat->size = targetsiz;
+		}
+	}
+	return rc;
+}
+
 int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 		     struct kstat *stat)
 {
@@ -1133,6 +1136,7 @@ const struct inode_operations ecryptfs_symlink_iops = {
 	.put_link = ecryptfs_put_link,
 	.permission = ecryptfs_permission,
 	.setattr = ecryptfs_setattr,
+	.getattr = ecryptfs_getattr_link,
 	.setxattr = ecryptfs_setxattr,
 	.getxattr = ecryptfs_getxattr,
 	.listxattr = ecryptfs_listxattr,

From cfce08c6bdfb20ade979284e55001ca1f100ed51 Mon Sep 17 00:00:00 2001
From: Christian Pulvermacher <pulvermacher@gmx.de>
Date: Tue, 23 Mar 2010 11:51:38 -0500
Subject: [PATCH 237/464] ecryptfs: fix error code for missing xattrs in lower
 fs

If the lower file system driver has extended attributes disabled,
ecryptfs' own access functions return -ENOSYS instead of -EOPNOTSUPP.
This breaks execution of programs in the ecryptfs mount, since the
kernel expects the latter error when checking for security
capabilities in xattrs.

Signed-off-by: Christian Pulvermacher <pulvermacher@gmx.de>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/inode.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 605f514f3b47d..efd4f47d530c2 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1043,7 +1043,7 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	if (!lower_dentry->d_inode->i_op->setxattr) {
-		rc = -ENOSYS;
+		rc = -EOPNOTSUPP;
 		goto out;
 	}
 	mutex_lock(&lower_dentry->d_inode->i_mutex);
@@ -1061,7 +1061,7 @@ ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,
 	int rc = 0;
 
 	if (!lower_dentry->d_inode->i_op->getxattr) {
-		rc = -ENOSYS;
+		rc = -EOPNOTSUPP;
 		goto out;
 	}
 	mutex_lock(&lower_dentry->d_inode->i_mutex);
@@ -1088,7 +1088,7 @@ ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size)
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	if (!lower_dentry->d_inode->i_op->listxattr) {
-		rc = -ENOSYS;
+		rc = -EOPNOTSUPP;
 		goto out;
 	}
 	mutex_lock(&lower_dentry->d_inode->i_mutex);
@@ -1105,7 +1105,7 @@ static int ecryptfs_removexattr(struct dentry *dentry, const char *name)
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	if (!lower_dentry->d_inode->i_op->removexattr) {
-		rc = -ENOSYS;
+		rc = -EOPNOTSUPP;
 		goto out;
 	}
 	mutex_lock(&lower_dentry->d_inode->i_mutex);

From 133b8f9d632cc23715c6d72d1c5ac449e054a12a Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@jeffreymahoney.com>
Date: Fri, 19 Mar 2010 15:35:46 -0400
Subject: [PATCH 238/464] ecryptfs: fix use with tmpfs by removing d_drop from
 ecryptfs_destroy_inode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Since tmpfs has no persistent storage, it pins all its dentries in memory
so they have d_count=1 when other file systems would have d_count=0.
->lookup is only used to create new dentries. If the caller doesn't
instantiate it, it's freed immediately at dput(). ->readdir reads
directly from the dcache and depends on the dentries being hashed.

When an ecryptfs mount is mounted, it associates the lower file and dentry
with the ecryptfs files as they're accessed. When it's umounted and
destroys all the in-memory ecryptfs inodes, it fput's the lower_files and
d_drop's the lower_dentries. Commit 4981e081 added this and a d_delete in
2008 and several months later commit caeeeecf removed the d_delete. I
believe the d_drop() needs to be removed as well.

The d_drop effectively hides any file that has been accessed via ecryptfs
from the underlying tmpfs since it depends on it being hashed for it to
be accessible. I've removed the d_drop on my development node and see no
ill effects with basic testing on both tmpfs and persistent storage.

As a side effect, after ecryptfs d_drops the dentries on tmpfs, tmpfs
BUGs on umount. This is due to the dentries being unhashed.
tmpfs->kill_sb is kill_litter_super which calls d_genocide to drop
the reference pinning the dentry. It skips unhashed and negative dentries,
but shrink_dcache_for_umount_subtree doesn't. Since those dentries
still have an elevated d_count, we get a BUG().

This patch removes the d_drop call and fixes both issues.

This issue was reported at:
https://bugzilla.novell.com/show_bug.cgi?id=567887

Reported-by:  Árpád Bíró <biroa@demasz.hu>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/super.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index b15a43a80ab78..1a037f77aa52c 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -85,7 +85,6 @@ static void ecryptfs_destroy_inode(struct inode *inode)
 		if (lower_dentry->d_inode) {
 			fput(inode_info->lower_file);
 			inode_info->lower_file = NULL;
-			d_drop(lower_dentry);
 		}
 	}
 	ecryptfs_destroy_crypt_stat(&inode_info->crypt_stat);

From 3a8380c0754a7972668a46f645930910e304095c Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Tue, 23 Mar 2010 18:09:02 -0500
Subject: [PATCH 239/464] eCryptfs: Copy lower directory inode times and size
 on link

The timestamps and size of a lower inode involved in a link() call was
being copied to the upper parent inode.  Instead, we should be
copying lower parent inode's timestamps and size to the upper parent
inode.  I discovered this bug using the POSIX test suite at Tuxera.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/inode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index efd4f47d530c2..15b424837c181 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -456,8 +456,8 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,
 	rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb, 0);
 	if (rc)
 		goto out_lock;
-	fsstack_copy_attr_times(dir, lower_new_dentry->d_inode);
-	fsstack_copy_inode_size(dir, lower_new_dentry->d_inode);
+	fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
+	fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
 	old_dentry->d_inode->i_nlink =
 		ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink;
 	i_size_write(new_dentry->d_inode, file_size_save);

From 9f37622f897a90ad3c3da5c14d94d8f3ffc62b70 Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Date: Thu, 25 Mar 2010 11:16:56 -0500
Subject: [PATCH 240/464] eCryptfs: Turn lower lookup error messages into debug
 messages

Vaugue warnings about ENAMETOOLONG errors when looking up an encrypted
file name have caused many users to become concerned about their data.
Since this is a rather harmless condition, I'm moving this warning to
only be printed when the ecryptfs_verbosity module param is 1.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---
 fs/ecryptfs/inode.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 15b424837c181..b980fce984c62 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -388,9 +388,9 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
 	mutex_unlock(&lower_dir_dentry->d_inode->i_mutex);
 	if (IS_ERR(lower_dentry)) {
 		rc = PTR_ERR(lower_dentry);
-		printk(KERN_ERR "%s: lookup_one_len() returned [%d] on "
-		       "lower_dentry = [%s]\n", __func__, rc,
-		       ecryptfs_dentry->d_name.name);
+		ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned "
+				"[%d] on lower_dentry = [%s]\n", __func__, rc,
+				encrypted_and_encoded_name);
 		goto out_d_drop;
 	}
 	if (lower_dentry->d_inode)
@@ -417,9 +417,9 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
 	mutex_unlock(&lower_dir_dentry->d_inode->i_mutex);
 	if (IS_ERR(lower_dentry)) {
 		rc = PTR_ERR(lower_dentry);
-		printk(KERN_ERR "%s: lookup_one_len() returned [%d] on "
-		       "lower_dentry = [%s]\n", __func__, rc,
-		       encrypted_and_encoded_name);
+		ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned "
+				"[%d] on lower_dentry = [%s]\n", __func__, rc,
+				encrypted_and_encoded_name);
 		goto out_d_drop;
 	}
 lookup_and_interpose:

From b4bb5c3fd9333024044362df67e23e96158489ed Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 19 Apr 2010 10:48:38 +0200
Subject: [PATCH 241/464] mac80211: remove bogus TX agg state assignment

When the addba timer expires but has no work to do,
it should not affect the state machine. If it does,
TX will not see the successfully established and we
can also crash trying to re-establish the session.

Cc: stable@kernel.org [2.6.32, 2.6.33]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/agg-tx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 5538e1b4a6977..944a8a92207ba 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -183,7 +183,6 @@ static void sta_addba_resp_timer_expired(unsigned long data)
 		       HT_AGG_STATE_REQ_STOP_BA_MSK)) !=
 						HT_ADDBA_REQUESTED_MSK) {
 		spin_unlock_bh(&sta->lock);
-		*state = HT_AGG_STATE_IDLE;
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "timer expired on tid %d but we are not "
 				"(or no longer) expecting addBA response there",

From fe6f212ce12341df18ef9b890bea739b4547157b Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Mon, 19 Apr 2010 10:46:31 -0700
Subject: [PATCH 242/464] mac80211: pass HT changes to driver when off channel

Since "mac80211: make off-channel work generic" drivers have not been
notified of configuration changes after association or authentication. This
caused more dependence on current state to ensure driver will be notified
when configuration changes occur. One such problem arises if off-channel is
in progress when HT information changes. Since HT is only enabled on the
"oper_channel" the driver will never be notified of this change. Usually
the driver is notified soon after of a BSS information change
(BSS_CHANGED_HT) ... but since the driver did not get a notification that
this is a HT channel the new BSS information does not make sense.

Fix this by also changing the off-channel information when HT is enabled
and thus cause driver to be notified correctly.

This fixes a problem in 4965 when associated with 5GHz 40MHz channel.
Without this patch the system can associate but is unable to transfer any
data, not even ping.

See http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2158

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/mlme.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index be5f723d643ac..8a9650343f264 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -167,6 +167,8 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
 		     channel_type != local->hw.conf.channel_type;
 
+	if (local->tmp_channel)
+		local->tmp_channel_type = channel_type;
 	local->oper_channel_type = channel_type;
 
 	if (ht_changed) {

From baa06775e224e9f74e5c2de894c95cd49678beff Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 19 Apr 2010 13:46:48 -0700
Subject: [PATCH 243/464] sparc64: Use correct pt_regs in decode_access_size()
 error paths.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/unaligned_64.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index ebce43018c49c..c752c4c479bd8 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -50,7 +50,7 @@ static inline enum direction decode_direction(unsigned int insn)
 }
 
 /* 16 = double-word, 8 = extra-word, 4 = word, 2 = half-word */
-static inline int decode_access_size(unsigned int insn)
+static inline int decode_access_size(struct pt_regs *regs, unsigned int insn)
 {
 	unsigned int tmp;
 
@@ -66,7 +66,7 @@ static inline int decode_access_size(unsigned int insn)
 		return 2;
 	else {
 		printk("Impossible unaligned trap. insn=%08x\n", insn);
-		die_if_kernel("Byte sized unaligned access?!?!", current_thread_info()->kregs);
+		die_if_kernel("Byte sized unaligned access?!?!", regs);
 
 		/* GCC should never warn that control reaches the end
 		 * of this function without returning a value because
@@ -286,7 +286,7 @@ static void log_unaligned(struct pt_regs *regs)
 asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 {
 	enum direction dir = decode_direction(insn);
-	int size = decode_access_size(insn);
+	int size = decode_access_size(regs, insn);
 	int orig_asi, asi;
 
 	current_thread_info()->kern_una_regs = regs;

From ef9e83c1ab2981769f16e626179dd56895041b38 Mon Sep 17 00:00:00 2001
From: Alexander Kuznetsov <alr.kuznetsov@gmail.com>
Date: Mon, 19 Apr 2010 14:17:43 -0700
Subject: [PATCH 244/464] 8139too: Fix a typo in the function name.

Signed-off-by: Alexander Kuznetsov <alr.kuznetsov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/8139too.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index a03d291de8548..f0d23de329675 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -1944,7 +1944,7 @@ static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp,
 		netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n",
 			  __func__, rx_status, rx_size, cur_rx);
 #if RTL8139_DEBUG > 2
-		print_dump_hex(KERN_DEBUG, "Frame contents: ",
+		print_hex_dump(KERN_DEBUG, "Frame contents: ",
 			       DUMP_PREFIX_OFFSET, 16, 1,
 			       &rx_ring[ring_offset], 70, true);
 #endif

From e8a03feb54ca7f1768bbdc2b491f9ef654e6d01d Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Wed, 14 Apr 2010 17:59:28 -0400
Subject: [PATCH 245/464] rmap: add exclusively owned pages to the newest
 anon_vma

The recent anon_vma fixes cause many anonymous pages to end up
in the parent process anon_vma, even when the page is exclusively
owned by the current process.

Adding exclusively owned anonymous pages to the top anon_vma
reduces rmap scanning overhead, especially in workloads with
forking servers.

This patch adds a parameter to __page_set_anon_rmap that can
be used to indicate whether or not the added page is exclusively
owned by the current process.

Pages added through page_add_new_anon_rmap are exclusively
owned by the current process, and can be added to the top
anon_vma.

Pages added through page_add_anon_rmap can be either shared
or exclusively owned, so we do the conservative thing and
add it to the oldest anon_vma.

A next step would be to add the exclusive parameter to
page_add_anon_rmap, to be used from functions where we do
know for sure whether a page is exclusively owned.

Signed-off-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Lightly-tested-by: Borislav Petkov <bp@alien8.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
[ Edited to look nicer  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/rmap.c | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index 4bad3267537a8..526704e8215d0 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -730,23 +730,28 @@ void page_move_anon_rmap(struct page *page,
  * @page:	the page to add the mapping to
  * @vma:	the vm area in which the mapping is added
  * @address:	the user virtual address mapped
+ * @exclusive:	the page is exclusively owned by the current process
  */
 static void __page_set_anon_rmap(struct page *page,
-	struct vm_area_struct *vma, unsigned long address)
+	struct vm_area_struct *vma, unsigned long address, int exclusive)
 {
-	struct anon_vma_chain *avc;
-	struct anon_vma *anon_vma;
+	struct anon_vma *anon_vma = vma->anon_vma;
 
-	BUG_ON(!vma->anon_vma);
+	BUG_ON(!anon_vma);
 
 	/*
-	 * We must use the _oldest_ possible anon_vma for the page mapping!
+	 * If the page isn't exclusively mapped into this vma,
+	 * we must use the _oldest_ possible anon_vma for the
+	 * page mapping!
 	 *
-	 * So take the last AVC chain entry in the vma, which is the deepest
-	 * ancestor, and use the anon_vma from that.
+	 * So take the last AVC chain entry in the vma, which is
+	 * the deepest ancestor, and use the anon_vma from that.
 	 */
-	avc = list_entry(vma->anon_vma_chain.prev, struct anon_vma_chain, same_vma);
-	anon_vma = avc->anon_vma;
+	if (!exclusive) {
+		struct anon_vma_chain *avc;
+		avc = list_entry(vma->anon_vma_chain.prev, struct anon_vma_chain, same_vma);
+		anon_vma = avc->anon_vma;
+	}
 
 	anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
 	page->mapping = (struct address_space *) anon_vma;
@@ -802,7 +807,7 @@ void page_add_anon_rmap(struct page *page,
 	VM_BUG_ON(!PageLocked(page));
 	VM_BUG_ON(address < vma->vm_start || address >= vma->vm_end);
 	if (first)
-		__page_set_anon_rmap(page, vma, address);
+		__page_set_anon_rmap(page, vma, address, 0);
 	else
 		__page_check_anon_rmap(page, vma, address);
 }
@@ -824,7 +829,7 @@ void page_add_new_anon_rmap(struct page *page,
 	SetPageSwapBacked(page);
 	atomic_set(&page->_mapcount, 0); /* increment count (starts at -1) */
 	__inc_zone_page_state(page, NR_ANON_PAGES);
-	__page_set_anon_rmap(page, vma, address);
+	__page_set_anon_rmap(page, vma, address, 1);
 	if (page_evictable(page, vma))
 		lru_cache_add_lru(page, LRU_ACTIVE_ANON);
 	else

From 01bf0b64579ead8a82e7cfc32ae44bc667e7ad0f Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 19 Apr 2010 16:29:56 -0700
Subject: [PATCH 246/464] Linux 2.6.34-rc5

---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 9754615515318..fa1db90017547 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 34
-EXTRAVERSION = -rc4
-NAME = Man-Eating Seals of Antiquity
+EXTRAVERSION = -rc5
+NAME = Sheep on Meth
 
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"

From da9c99fc32e2d84f80672d192a7aaf7239057a2e Mon Sep 17 00:00:00 2001
From: Arnaud Patard <apatard@mandriva.com>
Date: Tue, 23 Mar 2010 17:28:28 +0100
Subject: [PATCH 247/464] i2c-imx: fix error handling

- Return -ETIMEDOUT on bus busy error
- Fix timeout test "time_after(jiffies, orig_jiffies + HZ / 1000)" :
  By default, HZ=100 on arm. This means that this test has no chances to
  work and may result in a dead loop. Set timeout to 500ms.
- Don't try to send a new message if we failed to transmit
  previous one. This was preventing to recover from error on my system

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
 drivers/i2c/busses/i2c-imx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index f7e27b7023759..d1ff9408dc1f2 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -146,10 +146,10 @@ static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
 				"<%s> I2C Interrupted\n", __func__);
 			return -EINTR;
 		}
-		if (time_after(jiffies, orig_jiffies + HZ / 1000)) {
+		if (time_after(jiffies, orig_jiffies + msecs_to_jiffies(500))) {
 			dev_dbg(&i2c_imx->adapter.dev,
 				"<%s> I2C bus is busy\n", __func__);
-			return -EIO;
+			return -ETIMEDOUT;
 		}
 		schedule();
 	}
@@ -444,6 +444,8 @@ static int i2c_imx_xfer(struct i2c_adapter *adapter,
 			result = i2c_imx_read(i2c_imx, &msgs[i]);
 		else
 			result = i2c_imx_write(i2c_imx, &msgs[i]);
+		if (result)
+			goto fail0;
 	}
 
 fail0:

From 7c6bd2010fced38444c9fd658f4c6ce61bd185bf Mon Sep 17 00:00:00 2001
From: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Date: Tue, 23 Mar 2010 12:12:56 +0200
Subject: [PATCH 248/464] i2c-omap: fix OOPS in omap_i2c_unidle() during probe

Commit d84d3ea317ce0db89ce0903b4037f800c5d4c477 added register shift to allow
also 16-bit register access. However, omap_i2c_unidle() is called before these
are set which causes the following OOPS:

    Unhandled fault: alignment exception (0x801) at 0xfa070009
    Internal error: : 801 [#1]
    last sysfs file:
    Modules linked in:
    CPU: 0    Not tainted  (2.6.34-rc2-00052-gae6be51 #3)
    PC is at omap_i2c_unidle+0x44/0x138
    LR is at trace_hardirqs_on_caller+0x158/0x18c
    pc : [<c01cd2c4>]    lr : [<c00743f8>]    psr: 20000013
    sp : cfc2bf10  ip : 00000009  fp : 00000000
    r10: 00000000  r9 : 00000000  r8 : c0378560
    r7 : c0378b88  r6 : c0378558  r5 : cfcadc00  r4 : cfcadc00
    r3 : 00000009  r2 : fa070000  r1 : 00000000  r0 : 00000000
    Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
    Control: 10c5387f  Table: 80004019  DAC: 00000017
    Process swapper (pid: 1, stack limit = 0xcfc2a2e8)
    Stack: (0xcfc2bf10 to 0xcfc2c000)
    bf00:                                     c0372cf8 c027225c 00000000 c0a69678
    bf20: cfc3e508 c0500898 c0378560 c0378560 c0500898 cfcac8c0 c04fc280 c017d4f4
    bf40: c0378560 c017c63c c0378560 c0378594 c0500898 cfcac8c0 c04fc280 c017c754
    bf60: 00000000 c017c6f4 c0500898 c017beac cfc16a5c cfc3fd94 c0023448 c0500898
    bf80: c0500898 c017b7d4 c032dc7f 00000093 cfc28d40 c0023448 00000000 c0500898
    bfa0: 00000000 00000000 00000000 c017ca48 c0023448 00000000 c001d274 00000000
    bfc0: 00000000 c002b344 00000031 00000000 00000000 00000192 00000000 c0023448
    bfe0: 00000000 00000000 00000000 c0008578 00000000 c002c304 ffdfffff ffffffff
    [<c01cd2c4>] (omap_i2c_unidle+0x44/0x138) from [<c027225c>] (omap_i2c_probe+0x1a4/0x398)
    [<c027225c>] (omap_i2c_probe+0x1a4/0x398) from [<c017d4f4>] (platform_drv_probe+0x18/0x1c)
    [<c017d4f4>] (platform_drv_probe+0x18/0x1c) from [<c017c63c>] (driver_probe_device+0xc0/0x178)
    [<c017c63c>] (driver_probe_device+0xc0/0x178) from [<c017c754>] (__driver_attach+0x60/0x84)
    [<c017c754>] (__driver_attach+0x60/0x84) from [<c017beac>] (bus_for_each_dev+0x44/0x74)
    [<c017beac>] (bus_for_each_dev+0x44/0x74) from [<c017b7d4>] (bus_add_driver+0x9c/0x218)
    [<c017b7d4>] (bus_add_driver+0x9c/0x218) from [<c017ca48>] (driver_register+0xa8/0x130)
    [<c017ca48>] (driver_register+0xa8/0x130) from [<c002b344>] (do_one_initcall+0x5c/0x1b8)
    [<c002b344>] (do_one_initcall+0x5c/0x1b8) from [<c0008578>] (kernel_init+0x90/0x144)
    [<c0008578>] (kernel_init+0x90/0x144) from [<c002c304>] (kernel_thread_exit+0x0/0x8)
    Code: e5942004 e3a0c009 e1a0331c e3a01000 (e18210b3)
    ---[ end trace 1b75b31a2719ed1c ]---

This patch moves register shift setting before any register accesses are done.

Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Cc: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
 drivers/i2c/busses/i2c-omap.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 6bd0f19cd451c..389ac6032a7be 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -903,6 +903,11 @@ omap_i2c_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, dev);
 
+	if (cpu_is_omap7xx())
+		dev->reg_shift = 1;
+	else
+		dev->reg_shift = 2;
+
 	if ((r = omap_i2c_get_clocks(dev)) != 0)
 		goto err_iounmap;
 
@@ -926,11 +931,6 @@ omap_i2c_probe(struct platform_device *pdev)
 		dev->b_hw = 1; /* Enable hardware fixes */
 	}
 
-	if (cpu_is_omap7xx())
-		dev->reg_shift = 1;
-	else
-		dev->reg_shift = 2;
-
 	/* reset ASAP, clearing any IRQs */
 	omap_i2c_init(dev);
 

From be80dbaa3ed64337693be58fb2f3808e78911ba6 Mon Sep 17 00:00:00 2001
From: Kevin Wells <wellsk40@gmail.com>
Date: Tue, 16 Mar 2010 15:55:36 -0700
Subject: [PATCH 249/464] i2c-pnx: Limit maximum divider to 1023

Limit maximum divider to 0x3ff to divider computations. On high I2C
parent clock rates, the divider can exceed 0x3ff. This will help
prevent some very odd clock rates.

Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
 drivers/i2c/busses/i2c-pnx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index 247103372a066..68fa415d9ad55 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -633,6 +633,8 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
 	 */
 
 	tmp = ((freq / 1000) / I2C_PNX_SPEED_KHZ) / 2 - 2;
+	if (tmp > 0x3FF)
+		tmp = 0x3FF;
 	iowrite32(tmp, I2C_REG_CKH(alg_data));
 	iowrite32(tmp, I2C_REG_CKL(alg_data));
 

From 28ad3321a1ac732c7fe37d5be85f67fe40ef18a9 Mon Sep 17 00:00:00 2001
From: Kevin Wells <wellsk40@gmail.com>
Date: Tue, 16 Mar 2010 15:55:37 -0700
Subject: [PATCH 250/464] i2c-pnx: Add stop conditions for end of transfer

Add a stop condition bit flag to the last byte in the transfer.
This will generate an extra clock to handle the stop condition
and prevent devices from staying in an ACK'd state.

Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
 drivers/i2c/busses/i2c-pnx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index 68fa415d9ad55..a97e3fec81482 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -173,6 +173,9 @@ static int i2c_pnx_master_xmit(struct i2c_pnx_algo_data *alg_data)
 		/* We still have something to talk about... */
 		val = *alg_data->mif.buf++;
 
+		if (alg_data->mif.len == 1)
+			val |= stop_bit;
+
 		alg_data->mif.len--;
 		iowrite32(val, I2C_REG_TX(alg_data));
 
@@ -246,6 +249,9 @@ static int i2c_pnx_master_rcv(struct i2c_pnx_algo_data *alg_data)
 			__func__);
 
 		if (alg_data->mif.len == 1) {
+			/* Last byte, do not acknowledge next rcv. */
+			val |= stop_bit;
+
 			/*
 			 * Enable interrupt RFDAIE (data in Rx fifo),
 			 * and disable DRMIE (need data for Tx)

From 42df64b1f83fa9b786067a0b5a3aca0fbb2d8db8 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Wed, 7 Apr 2010 12:22:58 +0300
Subject: [PATCH 251/464] i2c-stu300: off by one issue

If we don't find the correct rate, we want to end the loop with "i"
pointing to the last element in the array.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
 drivers/i2c/busses/i2c-stu300.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c
index 1f5b38be73bc4..495be451d326c 100644
--- a/drivers/i2c/busses/i2c-stu300.c
+++ b/drivers/i2c/busses/i2c-stu300.c
@@ -498,7 +498,7 @@ static int stu300_set_clk(struct stu300_dev *dev, unsigned long clkrate)
 	int i = 0;
 
 	/* Locate the apropriate clock setting */
-	while (i < ARRAY_SIZE(stu300_clktable) &&
+	while (i < ARRAY_SIZE(stu300_clktable) - 1 &&
 	       stu300_clktable[i].rate < clkrate)
 		i++;
 

From 35f2a591192d0a5d9f7fc696869c76f0b8e49c3d Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Tue, 20 Apr 2010 14:13:34 +1000
Subject: [PATCH 252/464] md/raid5: allow for more than 2^31 chunks.

With many large drives and small chunk sizes it is possible
to create a RAID5 with more than 2^31 chunks.  Make sure this
works.

Reported-by: Brett King <king.br@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@kernel.org
---
 drivers/md/raid5.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index e3e9a36ea3b7d..20e48401910e3 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1650,8 +1650,8 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 				     int previous, int *dd_idx,
 				     struct stripe_head *sh)
 {
-	long stripe;
-	unsigned long chunk_number;
+	sector_t stripe;
+	sector_t chunk_number;
 	unsigned int chunk_offset;
 	int pd_idx, qd_idx;
 	int ddf_layout = 0;
@@ -1671,17 +1671,12 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 	 */
 	chunk_offset = sector_div(r_sector, sectors_per_chunk);
 	chunk_number = r_sector;
-	BUG_ON(r_sector != chunk_number);
 
 	/*
 	 * Compute the stripe number
 	 */
-	stripe = chunk_number / data_disks;
-
-	/*
-	 * Compute the data disk and parity disk indexes inside the stripe
-	 */
-	*dd_idx = chunk_number % data_disks;
+	stripe = chunk_number;
+	*dd_idx = sector_div(stripe, data_disks);
 
 	/*
 	 * Select the parity disk based on the user selected algorithm.
@@ -1870,14 +1865,14 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
 				 : conf->algorithm;
 	sector_t stripe;
 	int chunk_offset;
-	int chunk_number, dummy1, dd_idx = i;
+	sector_t chunk_number;
+	int dummy1, dd_idx = i;
 	sector_t r_sector;
 	struct stripe_head sh2;
 
 
 	chunk_offset = sector_div(new_sector, sectors_per_chunk);
 	stripe = new_sector;
-	BUG_ON(new_sector != stripe);
 
 	if (i == sh->pd_idx)
 		return 0;
@@ -1970,7 +1965,7 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
 	}
 
 	chunk_number = stripe * data_disks + i;
-	r_sector = (sector_t)chunk_number * sectors_per_chunk + chunk_offset;
+	r_sector = chunk_number * sectors_per_chunk + chunk_offset;
 
 	check = raid5_compute_sector(conf, r_sector,
 				     previous, &dummy1, &sh2);

From b78315f051de8d207bead90470aa216c0617572b Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Fri, 26 Mar 2010 11:07:16 -0700
Subject: [PATCH 253/464] drm: delay vblank cleanup until after driver unload
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Drivers may use vblank calls now (e.g. drm_vblank_off) in their unload
paths, so don't clean up the vblank related structures until after
driver unload.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_stub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index ad73e141afdbd..543e79c1ce5a4 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -515,8 +515,6 @@ void drm_put_dev(struct drm_device *dev)
 	}
 	driver = dev->driver;
 
-	drm_vblank_cleanup(dev);
-
 	drm_lastclose(dev);
 
 	if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
@@ -536,6 +534,8 @@ void drm_put_dev(struct drm_device *dev)
 		dev->agp = NULL;
 	}
 
+	drm_vblank_cleanup(dev);
+
 	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
 		drm_rmmap(dev, r_list->map);
 	drm_ht_remove(&dev->map_hash);

From 28a1f533ae8606020238b840b82ae70a3f87609e Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 20 Apr 2010 00:48:37 -0700
Subject: [PATCH 254/464] sparc64: Fix hardirq tracing in trap return path.

We can overflow the hardirq stack if we set the %pil here
so early, just let the normal control flow do it.

This is fine as we are allowed to do the actual IRQ enable
at any point after we call trace_hardirqs_on.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/rtrap_64.S | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index 83f1873c6c131..090b9e9ad5e36 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -130,7 +130,17 @@ rtrap_xcall:
 		 nop
 		call			trace_hardirqs_on
 		 nop
-		wrpr			%l4, %pil
+		/* Do not actually set the %pil here.  We will do that
+		 * below after we clear PSTATE_IE in the %pstate register.
+		 * If we re-enable interrupts here, we can recurse down
+		 * the hardirq stack potentially endlessly, causing a
+		 * stack overflow.
+		 *
+		 * It is tempting to put this test and trace_hardirqs_on
+		 * call at the 'rt_continue' label, but that will not work
+		 * as that path hits unconditionally and we do not want to
+		 * execute this in NMI return paths, for example.
+		 */
 #endif
 rtrap_no_irq_enable:
 		andcc			%l1, TSTATE_PRIV, %l3

From 7567cae105e435b53e5a3e778546dd3ec53e3204 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Tue, 9 Mar 2010 12:01:10 +0200
Subject: [PATCH 255/464] KVM: take srcu lock before call to complete_pio()

complete_pio() may use slot table which is protected by srcu.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/x86.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 24cd0ee896e90..2eb999dc97744 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4483,7 +4483,9 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		kvm_set_cr8(vcpu, kvm_run->cr8);
 
 	if (vcpu->arch.pio.cur_count) {
+		vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 		r = complete_pio(vcpu);
+		srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
 		if (r)
 			goto out;
 	}

From b7af40433870aa0636932ad39b0c48a0cb319057 Mon Sep 17 00:00:00 2001
From: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Date: Tue, 9 Mar 2010 14:55:19 +0900
Subject: [PATCH 256/464] KVM: SVM: Fix memory leaks that happen when
 svm_create_vcpu() fails

svm_create_vcpu() does not free the pages allocated during the creation
when it fails to complete the allocations. This patch fixes it.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/svm.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 445c59411ed0b..2ba58206812aa 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -706,29 +706,28 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
 	if (err)
 		goto free_svm;
 
+	err = -ENOMEM;
 	page = alloc_page(GFP_KERNEL);
-	if (!page) {
-		err = -ENOMEM;
+	if (!page)
 		goto uninit;
-	}
 
-	err = -ENOMEM;
 	msrpm_pages = alloc_pages(GFP_KERNEL, MSRPM_ALLOC_ORDER);
 	if (!msrpm_pages)
-		goto uninit;
+		goto free_page1;
 
 	nested_msrpm_pages = alloc_pages(GFP_KERNEL, MSRPM_ALLOC_ORDER);
 	if (!nested_msrpm_pages)
-		goto uninit;
-
-	svm->msrpm = page_address(msrpm_pages);
-	svm_vcpu_init_msrpm(svm->msrpm);
+		goto free_page2;
 
 	hsave_page = alloc_page(GFP_KERNEL);
 	if (!hsave_page)
-		goto uninit;
+		goto free_page3;
+
 	svm->nested.hsave = page_address(hsave_page);
 
+	svm->msrpm = page_address(msrpm_pages);
+	svm_vcpu_init_msrpm(svm->msrpm);
+
 	svm->nested.msrpm = page_address(nested_msrpm_pages);
 
 	svm->vmcb = page_address(page);
@@ -744,6 +743,12 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
 
 	return &svm->vcpu;
 
+free_page3:
+	__free_pages(nested_msrpm_pages, MSRPM_ALLOC_ORDER);
+free_page2:
+	__free_pages(msrpm_pages, MSRPM_ALLOC_ORDER);
+free_page1:
+	__free_page(page);
 uninit:
 	kvm_vcpu_uninit(&svm->vcpu);
 free_svm:

From d6a23895aa82353788a1cc5a1d9a1c963465463e Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Thu, 11 Mar 2010 12:20:03 +0200
Subject: [PATCH 257/464] KVM: Don't spam kernel log when injecting exceptions
 due to bad cr writes

These are guest-triggerable.

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/x86.c | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2eb999dc97744..8f9b08d72c4de 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -433,8 +433,6 @@ void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 
 #ifdef CONFIG_X86_64
 	if (cr0 & 0xffffffff00000000UL) {
-		printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n",
-		       cr0, kvm_read_cr0(vcpu));
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
@@ -443,14 +441,11 @@ void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 	cr0 &= ~CR0_RESERVED_BITS;
 
 	if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD)) {
-		printk(KERN_DEBUG "set_cr0: #GP, CD == 0 && NW == 1\n");
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
 
 	if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE)) {
-		printk(KERN_DEBUG "set_cr0: #GP, set PG flag "
-		       "and a clear PE flag\n");
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
@@ -461,15 +456,11 @@ void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 			int cs_db, cs_l;
 
 			if (!is_pae(vcpu)) {
-				printk(KERN_DEBUG "set_cr0: #GP, start paging "
-				       "in long mode while PAE is disabled\n");
 				kvm_inject_gp(vcpu, 0);
 				return;
 			}
 			kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
 			if (cs_l) {
-				printk(KERN_DEBUG "set_cr0: #GP, start paging "
-				       "in long mode while CS.L == 1\n");
 				kvm_inject_gp(vcpu, 0);
 				return;
 
@@ -477,8 +468,6 @@ void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 		} else
 #endif
 		if (is_pae(vcpu) && !load_pdptrs(vcpu, vcpu->arch.cr3)) {
-			printk(KERN_DEBUG "set_cr0: #GP, pdptrs "
-			       "reserved bits\n");
 			kvm_inject_gp(vcpu, 0);
 			return;
 		}
@@ -505,28 +494,23 @@ void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 	unsigned long pdptr_bits = X86_CR4_PGE | X86_CR4_PSE | X86_CR4_PAE;
 
 	if (cr4 & CR4_RESERVED_BITS) {
-		printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n");
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
 
 	if (is_long_mode(vcpu)) {
 		if (!(cr4 & X86_CR4_PAE)) {
-			printk(KERN_DEBUG "set_cr4: #GP, clearing PAE while "
-			       "in long mode\n");
 			kvm_inject_gp(vcpu, 0);
 			return;
 		}
 	} else if (is_paging(vcpu) && (cr4 & X86_CR4_PAE)
 		   && ((cr4 ^ old_cr4) & pdptr_bits)
 		   && !load_pdptrs(vcpu, vcpu->arch.cr3)) {
-		printk(KERN_DEBUG "set_cr4: #GP, pdptrs reserved bits\n");
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
 
 	if (cr4 & X86_CR4_VMXE) {
-		printk(KERN_DEBUG "set_cr4: #GP, setting VMXE\n");
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
@@ -547,21 +531,16 @@ void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
 
 	if (is_long_mode(vcpu)) {
 		if (cr3 & CR3_L_MODE_RESERVED_BITS) {
-			printk(KERN_DEBUG "set_cr3: #GP, reserved bits\n");
 			kvm_inject_gp(vcpu, 0);
 			return;
 		}
 	} else {
 		if (is_pae(vcpu)) {
 			if (cr3 & CR3_PAE_RESERVED_BITS) {
-				printk(KERN_DEBUG
-				       "set_cr3: #GP, reserved bits\n");
 				kvm_inject_gp(vcpu, 0);
 				return;
 			}
 			if (is_paging(vcpu) && !load_pdptrs(vcpu, cr3)) {
-				printk(KERN_DEBUG "set_cr3: #GP, pdptrs "
-				       "reserved bits\n");
 				kvm_inject_gp(vcpu, 0);
 				return;
 			}
@@ -593,7 +572,6 @@ EXPORT_SYMBOL_GPL(kvm_set_cr3);
 void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
 {
 	if (cr8 & CR8_RESERVED_BITS) {
-		printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8);
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
@@ -649,15 +627,12 @@ static u32 emulated_msrs[] = {
 static void set_efer(struct kvm_vcpu *vcpu, u64 efer)
 {
 	if (efer & efer_reserved_bits) {
-		printk(KERN_DEBUG "set_efer: 0x%llx #GP, reserved bits\n",
-		       efer);
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
 
 	if (is_paging(vcpu)
 	    && (vcpu->arch.efer & EFER_LME) != (efer & EFER_LME)) {
-		printk(KERN_DEBUG "set_efer: #GP, change LME while paging\n");
 		kvm_inject_gp(vcpu, 0);
 		return;
 	}
@@ -667,7 +642,6 @@ static void set_efer(struct kvm_vcpu *vcpu, u64 efer)
 
 		feat = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
 		if (!feat || !(feat->edx & bit(X86_FEATURE_FXSR_OPT))) {
-			printk(KERN_DEBUG "set_efer: #GP, enable FFXSR w/o CPUID capability\n");
 			kvm_inject_gp(vcpu, 0);
 			return;
 		}
@@ -678,7 +652,6 @@ static void set_efer(struct kvm_vcpu *vcpu, u64 efer)
 
 		feat = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
 		if (!feat || !(feat->ecx & bit(X86_FEATURE_SVM))) {
-			printk(KERN_DEBUG "set_efer: #GP, enable SVM w/o SVM\n");
 			kvm_inject_gp(vcpu, 0);
 			return;
 		}

From 114be429c8cd44e57f312af2bbd6734e5a185b0d Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@amd.com>
Date: Wed, 24 Mar 2010 17:46:42 +0100
Subject: [PATCH 258/464] KVM: allow bit 10 to be cleared in MSR_IA32_MC4_CTL

There is a quirk for AMD K8 CPUs in many Linux kernels (see
arch/x86/kernel/cpu/mcheck/mce.c:__mcheck_cpu_apply_quirks()) that
clears bit 10 in that MCE related MSR. KVM can only cope with all
zeros or all ones, so it will inject a #GP into the guest, which
will let it panic.
So lets add a quirk to the quirk and ignore this single cleared bit.
This fixes -cpu kvm64 on all machines and -cpu host on K8 machines
with some guest Linux kernels.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/x86.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8f9b08d72c4de..9ad3d064c7817 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -940,9 +940,13 @@ static int set_msr_mce(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 		if (msr >= MSR_IA32_MC0_CTL &&
 		    msr < MSR_IA32_MC0_CTL + 4 * bank_num) {
 			u32 offset = msr - MSR_IA32_MC0_CTL;
-			/* only 0 or all 1s can be written to IA32_MCi_CTL */
+			/* only 0 or all 1s can be written to IA32_MCi_CTL
+			 * some Linux kernels though clear bit 10 in bank 4 to
+			 * workaround a BIOS/GART TBL issue on AMD K8s, ignore
+			 * this to avoid an uncatched #GP in the guest
+			 */
 			if ((offset & 0x3) == 0 &&
-			    data != 0 && data != ~(u64)0)
+			    data != 0 && (data | (1 << 10)) != ~(u64)0)
 				return -1;
 			vcpu->arch.mce_banks[offset] = data;
 			break;

From 78ac8b47c566dd6177a3b9b291b756ccb70670b7 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Thu, 8 Apr 2010 18:19:35 +0300
Subject: [PATCH 259/464] KVM: VMX: Save/restore rflags.vm correctly in real
 mode

Currently we set eflags.vm unconditionally when entering real mode emulation
through virtual-8086 mode, and clear it unconditionally when we enter protected
mode.  The means that the following sequence

  KVM_SET_REGS  (rflags.vm=1)
  KVM_SET_SREGS (cr0.pe=1)

Ends up with rflags.vm clear due to KVM_SET_SREGS triggering enter_pmode().

Fix by shadowing rflags.vm (and rflags.iopl) correctly while in real mode:
reads and writes to those bits access a shadow register instead of the actual
register.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
 arch/x86/kvm/vmx.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 686492ed3079b..bc933cfb4e66d 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -77,6 +77,8 @@ module_param(emulate_invalid_guest_state, bool, S_IRUGO);
 #define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
 #define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
 
+#define RMODE_GUEST_OWNED_EFLAGS_BITS (~(X86_EFLAGS_IOPL | X86_EFLAGS_VM))
+
 /*
  * These 2 parameters are used to config the controls for Pause-Loop Exiting:
  * ple_gap:    upper bound on the amount of time between two successive
@@ -131,7 +133,7 @@ struct vcpu_vmx {
 	} host_state;
 	struct {
 		int vm86_active;
-		u8 save_iopl;
+		ulong save_rflags;
 		struct kvm_save_segment {
 			u16 selector;
 			unsigned long base;
@@ -818,18 +820,23 @@ static void vmx_fpu_deactivate(struct kvm_vcpu *vcpu)
 
 static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
 {
-	unsigned long rflags;
+	unsigned long rflags, save_rflags;
 
 	rflags = vmcs_readl(GUEST_RFLAGS);
-	if (to_vmx(vcpu)->rmode.vm86_active)
-		rflags &= ~(unsigned long)(X86_EFLAGS_IOPL | X86_EFLAGS_VM);
+	if (to_vmx(vcpu)->rmode.vm86_active) {
+		rflags &= RMODE_GUEST_OWNED_EFLAGS_BITS;
+		save_rflags = to_vmx(vcpu)->rmode.save_rflags;
+		rflags |= save_rflags & ~RMODE_GUEST_OWNED_EFLAGS_BITS;
+	}
 	return rflags;
 }
 
 static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
 {
-	if (to_vmx(vcpu)->rmode.vm86_active)
+	if (to_vmx(vcpu)->rmode.vm86_active) {
+		to_vmx(vcpu)->rmode.save_rflags = rflags;
 		rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
+	}
 	vmcs_writel(GUEST_RFLAGS, rflags);
 }
 
@@ -1483,8 +1490,8 @@ static void enter_pmode(struct kvm_vcpu *vcpu)
 	vmcs_write32(GUEST_TR_AR_BYTES, vmx->rmode.tr.ar);
 
 	flags = vmcs_readl(GUEST_RFLAGS);
-	flags &= ~(X86_EFLAGS_IOPL | X86_EFLAGS_VM);
-	flags |= (vmx->rmode.save_iopl << IOPL_SHIFT);
+	flags &= RMODE_GUEST_OWNED_EFLAGS_BITS;
+	flags |= vmx->rmode.save_rflags & ~RMODE_GUEST_OWNED_EFLAGS_BITS;
 	vmcs_writel(GUEST_RFLAGS, flags);
 
 	vmcs_writel(GUEST_CR4, (vmcs_readl(GUEST_CR4) & ~X86_CR4_VME) |
@@ -1557,8 +1564,7 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
 	vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
 
 	flags = vmcs_readl(GUEST_RFLAGS);
-	vmx->rmode.save_iopl
-		= (flags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
+	vmx->rmode.save_rflags = flags;
 
 	flags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
 

From 77662e0028c7c63e34257fda03ff9625c59d939d Mon Sep 17 00:00:00 2001
From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Date: Fri, 16 Apr 2010 16:34:42 +0800
Subject: [PATCH 260/464] KVM: MMU: fix kvm_mmu_zap_page() and its calling path

This patch fix:

- calculate zapped page number properly in mmu_zap_unsync_children()
- calculate freeed page number properly kvm_mmu_change_mmu_pages()
- if zapped children page it shoud restart hlist walking

KVM-Stable-Tag.
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
 arch/x86/kvm/mmu.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 48aeee8eefb0e..19a8906bcaa2c 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1490,8 +1490,8 @@ static int mmu_zap_unsync_children(struct kvm *kvm,
 		for_each_sp(pages, sp, parents, i) {
 			kvm_mmu_zap_page(kvm, sp);
 			mmu_pages_clear_parents(&parents);
+			zapped++;
 		}
-		zapped += pages.nr;
 		kvm_mmu_pages_init(parent, &parents, &pages);
 	}
 
@@ -1542,14 +1542,16 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages)
 	 */
 
 	if (used_pages > kvm_nr_mmu_pages) {
-		while (used_pages > kvm_nr_mmu_pages) {
+		while (used_pages > kvm_nr_mmu_pages &&
+			!list_empty(&kvm->arch.active_mmu_pages)) {
 			struct kvm_mmu_page *page;
 
 			page = container_of(kvm->arch.active_mmu_pages.prev,
 					    struct kvm_mmu_page, link);
-			kvm_mmu_zap_page(kvm, page);
+			used_pages -= kvm_mmu_zap_page(kvm, page);
 			used_pages--;
 		}
+		kvm_nr_mmu_pages = used_pages;
 		kvm->arch.n_free_mmu_pages = 0;
 	}
 	else
@@ -1596,7 +1598,8 @@ static void mmu_unshadow(struct kvm *kvm, gfn_t gfn)
 		    && !sp->role.invalid) {
 			pgprintk("%s: zap %lx %x\n",
 				 __func__, gfn, sp->role.word);
-			kvm_mmu_zap_page(kvm, sp);
+			if (kvm_mmu_zap_page(kvm, sp))
+				nn = bucket->first;
 		}
 	}
 }

From 87bf6e7de1134f48681fd2ce4b7c1ec45458cb6d Mon Sep 17 00:00:00 2001
From: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Date: Mon, 12 Apr 2010 19:35:35 +0900
Subject: [PATCH 261/464] KVM: fix the handling of dirty bitmaps to avoid
 overflows

Int is not long enough to store the size of a dirty bitmap.

This patch fixes this problem with the introduction of a wrapper
function to calculate the sizes of dirty bitmaps.

Note: in mark_page_dirty(), we have to consider the fact that
  __set_bit() takes the offset as int, not long.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
 arch/ia64/kvm/kvm-ia64.c  |  9 +++++----
 arch/powerpc/kvm/book3s.c |  5 +++--
 arch/x86/kvm/x86.c        |  5 +++--
 include/linux/kvm_host.h  |  5 +++++
 virt/kvm/kvm_main.c       | 13 ++++++++-----
 5 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 73c5c2b05f648..7f3c0a2e60cdb 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1802,7 +1802,8 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm,
 {
 	struct kvm_memory_slot *memslot;
 	int r, i;
-	long n, base;
+	long base;
+	unsigned long n;
 	unsigned long *dirty_bitmap = (unsigned long *)(kvm->arch.vm_base +
 			offsetof(struct kvm_vm_data, kvm_mem_dirty_log));
 
@@ -1815,7 +1816,7 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm,
 	if (!memslot->dirty_bitmap)
 		goto out;
 
-	n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+	n = kvm_dirty_bitmap_bytes(memslot);
 	base = memslot->base_gfn / BITS_PER_LONG;
 
 	for (i = 0; i < n/sizeof(long); ++i) {
@@ -1831,7 +1832,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 		struct kvm_dirty_log *log)
 {
 	int r;
-	int n;
+	unsigned long n;
 	struct kvm_memory_slot *memslot;
 	int is_dirty = 0;
 
@@ -1850,7 +1851,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	if (is_dirty) {
 		kvm_flush_remote_tlbs(kvm);
 		memslot = &kvm->memslots->memslots[log->slot];
-		n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+		n = kvm_dirty_bitmap_bytes(memslot);
 		memset(memslot->dirty_bitmap, 0, n);
 	}
 	r = 0;
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 25da07fd9f776..604af29b71ed2 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -1004,7 +1004,8 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	struct kvm_vcpu *vcpu;
 	ulong ga, ga_end;
 	int is_dirty = 0;
-	int r, n;
+	int r;
+	unsigned long n;
 
 	mutex_lock(&kvm->slots_lock);
 
@@ -1022,7 +1023,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 		kvm_for_each_vcpu(n, vcpu, kvm)
 			kvmppc_mmu_pte_pflush(vcpu, ga, ga_end);
 
-		n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+		n = kvm_dirty_bitmap_bytes(memslot);
 		memset(memslot->dirty_bitmap, 0, n);
 	}
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9ad3d064c7817..45aa90f8cc576 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2612,8 +2612,9 @@ static int kvm_vm_ioctl_reinject(struct kvm *kvm,
 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 				      struct kvm_dirty_log *log)
 {
-	int r, n, i;
+	int r, i;
 	struct kvm_memory_slot *memslot;
+	unsigned long n;
 	unsigned long is_dirty = 0;
 	unsigned long *dirty_bitmap = NULL;
 
@@ -2628,7 +2629,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	if (!memslot->dirty_bitmap)
 		goto out;
 
-	n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+	n = kvm_dirty_bitmap_bytes(memslot);
 
 	r = -ENOMEM;
 	dirty_bitmap = vmalloc(n);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a3fd0f91d943c..9ad825e1c79b3 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -119,6 +119,11 @@ struct kvm_memory_slot {
 	int user_alloc;
 };
 
+static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)
+{
+	return ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+}
+
 struct kvm_kernel_irq_routing_entry {
 	u32 gsi;
 	u32 type;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5a0cd194dce00..364daacafb583 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -648,7 +648,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 
 	/* Allocate page dirty bitmap if needed */
 	if ((new.flags & KVM_MEM_LOG_DIRTY_PAGES) && !new.dirty_bitmap) {
-		unsigned dirty_bytes = ALIGN(npages, BITS_PER_LONG) / 8;
+		unsigned long dirty_bytes = kvm_dirty_bitmap_bytes(&new);
 
 		new.dirty_bitmap = vmalloc(dirty_bytes);
 		if (!new.dirty_bitmap)
@@ -768,7 +768,7 @@ int kvm_get_dirty_log(struct kvm *kvm,
 {
 	struct kvm_memory_slot *memslot;
 	int r, i;
-	int n;
+	unsigned long n;
 	unsigned long any = 0;
 
 	r = -EINVAL;
@@ -780,7 +780,7 @@ int kvm_get_dirty_log(struct kvm *kvm,
 	if (!memslot->dirty_bitmap)
 		goto out;
 
-	n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+	n = kvm_dirty_bitmap_bytes(memslot);
 
 	for (i = 0; !any && i < n/sizeof(long); ++i)
 		any = memslot->dirty_bitmap[i];
@@ -1186,10 +1186,13 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
 	memslot = gfn_to_memslot_unaliased(kvm, gfn);
 	if (memslot && memslot->dirty_bitmap) {
 		unsigned long rel_gfn = gfn - memslot->base_gfn;
+		unsigned long *p = memslot->dirty_bitmap +
+					rel_gfn / BITS_PER_LONG;
+		int offset = rel_gfn % BITS_PER_LONG;
 
 		/* avoid RMW */
-		if (!generic_test_le_bit(rel_gfn, memslot->dirty_bitmap))
-			generic___set_le_bit(rel_gfn, memslot->dirty_bitmap);
+		if (!generic_test_le_bit(offset, p))
+			generic___set_le_bit(offset, p);
 	}
 }
 

From e80e2a60ff7914dae691345a976c80bbbff3ec74 Mon Sep 17 00:00:00 2001
From: Sridhar Samudrala <sri@us.ibm.com>
Date: Tue, 30 Mar 2010 16:48:25 -0700
Subject: [PATCH 262/464] KVM: Increase NR_IOBUS_DEVS limit to 200

This patch increases the current hardcoded limit of NR_IOBUS_DEVS
from 6 to 200. We are hitting this limit when creating a guest with more
than 1 virtio-net device using vhost-net backend. Each virtio-net
device requires 2 such devices to service notifications from rx/tx queues.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm_host.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 9ad825e1c79b3..169d07758ee53 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -54,7 +54,7 @@ extern struct kmem_cache *kvm_vcpu_cache;
  */
 struct kvm_io_bus {
 	int                   dev_count;
-#define NR_IOBUS_DEVS 6
+#define NR_IOBUS_DEVS 200
 	struct kvm_io_device *devs[NR_IOBUS_DEVS];
 };
 

From 4cecd935f67bf46a9fe8037c710dd86651fcafe4 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 20 Apr 2010 05:31:02 +0200
Subject: [PATCH 263/464] x86: correctly wire up the newuname system call

Before commit e28cbf22933d0c0ccaf3c4c27a1a263b41f73859 ("improve
sys_newuname() for compat architectures") 64-bit x86 had a private
implementation of sys_uname which was just called sys_uname, which other
architectures used for the old uname.

Due to some merge issues with the uname refactoring patches we ended up
calling the old uname version for both the old and new system call
slots, which lead to the domainname filed never be set which caused
failures with libnss_nis.

Reported-and-tested-by: Andy Isaacson <adi@hexapodia.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/ia32/ia32entry.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 59b4556a5b922..e790bc1fbfa3a 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -626,7 +626,7 @@ ia32_sys_call_table:
 	.quad stub32_sigreturn
 	.quad stub32_clone		/* 120 */
 	.quad sys_setdomainname
-	.quad sys_uname
+	.quad sys_newuname
 	.quad sys_modify_ldt
 	.quad compat_sys_adjtimex
 	.quad sys32_mprotect		/* 125 */

From 62af9b520513d78484f22f874916dfacbc889ce0 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 19 Apr 2010 16:47:20 +0200
Subject: [PATCH 264/464] quota: Convert __DQUOT_PARANOIA symbol to standard
 config option

Make __DQUOT_PARANOIA define from the old days a standard config option
and turn it off by default.

This gets rid of a quota warning about writes before quota is turned on
for systems with ext4 root filesystem. Currently there's no way to legally
solve this because /etc/mtab has to be written before quota is turned on
on most systems.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/quota/Kconfig |  8 ++++++++
 fs/quota/dquot.c | 16 +++++++---------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
index dad7fb247ddc3..3e21b1e2ad3a7 100644
--- a/fs/quota/Kconfig
+++ b/fs/quota/Kconfig
@@ -33,6 +33,14 @@ config PRINT_QUOTA_WARNING
 	  Note that this behavior is currently deprecated and may go away in
 	  future. Please use notification via netlink socket instead.
 
+config QUOTA_DEBUG
+	bool "Additional quota sanity checks"
+	depends on QUOTA
+	default n
+	help
+	  If you say Y here, quota subsystem will perform some additional
+	  sanity checks of quota internal structures. If unsure, say N.
+
 # Generic support for tree structured quota files. Selected when needed.
 config QUOTA_TREE
 	 tristate
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index a0a9405b202a9..788b5802a7ce5 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -80,8 +80,6 @@
 
 #include <asm/uaccess.h>
 
-#define __DQUOT_PARANOIA
-
 /*
  * There are three quota SMP locks. dq_list_lock protects all lists with quotas
  * and quota formats, dqstats structure containing statistics about the lists
@@ -695,7 +693,7 @@ void dqput(struct dquot *dquot)
 
 	if (!dquot)
 		return;
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
 	if (!atomic_read(&dquot->dq_count)) {
 		printk("VFS: dqput: trying to free free dquot\n");
 		printk("VFS: device %s, dquot of %s %d\n",
@@ -748,7 +746,7 @@ void dqput(struct dquot *dquot)
 		goto we_slept;
 	}
 	atomic_dec(&dquot->dq_count);
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
 	/* sanity check */
 	BUG_ON(!list_empty(&dquot->dq_free));
 #endif
@@ -845,7 +843,7 @@ struct dquot *dqget(struct super_block *sb, unsigned int id, int type)
 		dquot = NULL;
 		goto out;
 	}
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
 	BUG_ON(!dquot->dq_sb);	/* Has somebody invalidated entry under us? */
 #endif
 out:
@@ -874,7 +872,7 @@ static int dqinit_needed(struct inode *inode, int type)
 static void add_dquot_ref(struct super_block *sb, int type)
 {
 	struct inode *inode, *old_inode = NULL;
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
 	int reserved = 0;
 #endif
 
@@ -882,7 +880,7 @@ static void add_dquot_ref(struct super_block *sb, int type)
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
 		if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE|I_NEW))
 			continue;
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
 		if (unlikely(inode_get_rsv_space(inode) > 0))
 			reserved = 1;
 #endif
@@ -907,7 +905,7 @@ static void add_dquot_ref(struct super_block *sb, int type)
 	spin_unlock(&inode_lock);
 	iput(old_inode);
 
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
 	if (reserved) {
 		printk(KERN_WARNING "VFS (%s): Writes happened before quota"
 			" was turned on thus quota information is probably "
@@ -940,7 +938,7 @@ static int remove_inode_dquot_ref(struct inode *inode, int type,
 	inode->i_dquot[type] = NULL;
 	if (dquot) {
 		if (dqput_blocks(dquot)) {
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
 			if (atomic_read(&dquot->dq_count) != 1)
 				printk(KERN_WARNING "VFS: Adding dquot with dq_count %d to dispose list.\n", atomic_read(&dquot->dq_count));
 #endif

From b6349ac89eacb813f6963f7263da05bc3f483351 Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Tue, 20 Apr 2010 21:44:10 +0200
Subject: [PATCH 265/464] [LogFS] Split large truncated into smaller chunks

Truncate would do an almost limitless amount of work without invoking
the garbage collector in between.  Split it up into more manageable,
though still large, chunks.

Signed-off-by: Joern Engel <joern@logfs.org>
---
 fs/logfs/readwrite.c | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index aca6c56a107ac..7e3a1e5fd76d6 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -1837,19 +1837,37 @@ static int __logfs_truncate(struct inode *inode, u64 size)
 	return logfs_truncate_direct(inode, size);
 }
 
-int logfs_truncate(struct inode *inode, u64 size)
+/*
+ * Truncate, by changing the segment file, can consume a fair amount
+ * of resources.  So back off from time to time and do some GC.
+ * 8 or 2048 blocks should be well within safety limits even if
+ * every single block resided in a different segment.
+ */
+#define TRUNCATE_STEP	(8 * 1024 * 1024)
+int logfs_truncate(struct inode *inode, u64 target)
 {
 	struct super_block *sb = inode->i_sb;
-	int err;
+	u64 size = i_size_read(inode);
+	int err = 0;
 
-	logfs_get_wblocks(sb, NULL, 1);
-	err = __logfs_truncate(inode, size);
-	if (!err)
-		err = __logfs_write_inode(inode, 0);
-	logfs_put_wblocks(sb, NULL, 1);
+	size = ALIGN(size, TRUNCATE_STEP);
+	while (size > target) {
+		if (size > TRUNCATE_STEP)
+			size -= TRUNCATE_STEP;
+		else
+			size = 0;
+		if (size < target)
+			size = target;
+
+		logfs_get_wblocks(sb, NULL, 1);
+		err = __logfs_truncate(inode, target);
+		if (!err)
+			err = __logfs_write_inode(inode, 0);
+		logfs_put_wblocks(sb, NULL, 1);
+	}
 
 	if (!err)
-		err = vmtruncate(inode, size);
+		err = vmtruncate(inode, target);
 
 	/* I don't trust error recovery yet. */
 	WARN_ON(err);

From b90f687018e6d6c77d981b09203780f7001407e5 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Tue, 20 Apr 2010 16:51:59 -0400
Subject: [PATCH 266/464] ext4: Issue the discard operation *before* releasing
 the blocks to be reused

Otherwise, we can end up having data corruption because the blocks
could get reused and then discarded!

https://bugzilla.kernel.org/show_bug.cgi?id=15579

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/mballoc.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 54df209d2eed5..e5ab41b559c06 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2534,6 +2534,17 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
 		mb_debug(1, "gonna free %u blocks in group %u (0x%p):",
 			 entry->count, entry->group, entry);
 
+		if (test_opt(sb, DISCARD)) {
+			ext4_fsblk_t discard_block;
+
+			discard_block = entry->start_blk +
+				ext4_group_first_block_no(sb, entry->group);
+			trace_ext4_discard_blocks(sb,
+					(unsigned long long)discard_block,
+					entry->count);
+			sb_issue_discard(sb, discard_block, entry->count);
+		}
+
 		err = ext4_mb_load_buddy(sb, entry->group, &e4b);
 		/* we expect to find existing buddy because it's pinned */
 		BUG_ON(err != 0);
@@ -2555,16 +2566,6 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
 			page_cache_release(e4b.bd_bitmap_page);
 		}
 		ext4_unlock_group(sb, entry->group);
-		if (test_opt(sb, DISCARD)) {
-			ext4_fsblk_t discard_block;
-
-			discard_block = entry->start_blk +
-				ext4_group_first_block_no(sb, entry->group);
-			trace_ext4_discard_blocks(sb,
-					(unsigned long long)discard_block,
-					entry->count);
-			sb_issue_discard(sb, discard_block, entry->count);
-		}
 		kmem_cache_free(ext4_free_ext_cachep, entry);
 		ext4_mb_release_desc(&e4b);
 	}

From eff30363c0b8b057f773108589bfd8881659fe74 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 20 Apr 2010 22:41:18 +0100
Subject: [PATCH 267/464] CRED: Fix double free in
 prepare_usermodehelper_creds() error handling

Patch 570b8fb505896e007fd3bb07573ba6640e51851d:

	Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	Date:   Tue Mar 30 00:04:00 2010 +0100
	Subject: CRED: Fix memory leak in error handling

attempts to fix a memory leak in the error handling by making the offending
return statement into a jump down to the bottom of the function where a
kfree(tgcred) is inserted.

This is, however, incorrect, as it does a kfree() after doing put_cred() if
security_prepare_creds() fails.  That will result in a double free if 'error'
is jumped to as put_cred() will also attempt to free the new tgcred record by
virtue of it being pointed to by the new cred record.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 kernel/cred.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/cred.c b/kernel/cred.c
index e1dbe9eef800b..ce1a52b9e8a3b 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -398,6 +398,8 @@ struct cred *prepare_usermodehelper_creds(void)
 
 error:
 	put_cred(new);
+	return NULL;
+
 free_tgcred:
 #ifdef CONFIG_KEYS
 	kfree(tgcred);

From 8eabf95cb17253a3ac72b1a62ce8a80b3efecd62 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 20 Apr 2010 03:20:05 +0000
Subject: [PATCH 268/464] bridge: add a missing ntohs()

grec_nsrcs is in network order, we should convert to host horder in
br_multicast_igmp3_report()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_multicast.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index f29ada827a6ac..386c15369d91e 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -727,7 +727,7 @@ static int br_multicast_igmp3_report(struct net_bridge *br,
 		group = grec->grec_mca;
 		type = grec->grec_type;
 
-		len += grec->grec_nsrcs * 4;
+		len += ntohs(grec->grec_nsrcs) * 4;
 		if (!pskb_may_pull(skb, len))
 			return -EINVAL;
 

From d7dfee3f5db5575b1d838744559c3c9bb351f74f Mon Sep 17 00:00:00 2001
From: Jun Sun <jsun@junsun.net>
Date: Thu, 31 Dec 2009 17:28:52 -0800
Subject: [PATCH 269/464] uclinux: error message when FLAT reloc symbol is
 invalid, v2

This patch fixes a cosmetic error in printk. Text segment and data/bss
segment are allocated from two different areas. It is not meaningful to
give the diff between them in the error reporting messages.

Signed-off-by: Jun Sun <jsun@junsun.net>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
 fs/binfmt_flat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index e0e769bdca599..49566c1687d84 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -355,7 +355,7 @@ calc_reloc(unsigned long r, struct lib_info *p, int curid, int internalp)
 
 	if (!flat_reloc_valid(r, start_brk - start_data + text_len)) {
 		printk("BINFMT_FLAT: reloc outside program 0x%x (0 - 0x%x/0x%x)",
-		       (int) r,(int)(start_brk-start_code),(int)text_len);
+		       (int) r,(int)(start_brk-start_data+text_len),(int)text_len);
 		goto failed;
 	}
 

From eb79cbe23055a8919a32d19456fa06fbaa16cc1a Mon Sep 17 00:00:00 2001
From: Philip Nye <philipn@engarts.com>
Date: Tue, 12 Jan 2010 10:18:03 +1000
Subject: [PATCH 270/464] m68knommu: correct the CC flags for Coldfire M5272
 targets

Signed-off-by: Philip Nye <philipn@engarts.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
 arch/m68knommu/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/m68knommu/Makefile b/arch/m68knommu/Makefile
index ce404bc9ccbdf..14042574ac217 100644
--- a/arch/m68knommu/Makefile
+++ b/arch/m68knommu/Makefile
@@ -94,7 +94,7 @@ cflags-$(CONFIG_M520x)		:= $(call cc-option,-mcpu=5208,-m5200)
 cflags-$(CONFIG_M523x)		:= $(call cc-option,-mcpu=523x,-m5307)
 cflags-$(CONFIG_M5249)		:= $(call cc-option,-mcpu=5249,-m5200)
 cflags-$(CONFIG_M5271)		:= $(call cc-option,-mcpu=5271,-m5307)
-cflags-$(CONFIG_M5272)		:= $(call cc-option,-mcpu=5271,-m5200)
+cflags-$(CONFIG_M5272)		:= $(call cc-option,-mcpu=5272,-m5307)
 cflags-$(CONFIG_M5275)		:= $(call cc-option,-mcpu=5275,-m5307)
 cflags-$(CONFIG_M528x)		:= $(call cc-option,-m528x,-m5307)
 cflags-$(CONFIG_M5307)		:= $(call cc-option,-m5307,-m5200)

From 760d6e7861f245599e0ca1e98ba524a77d401a51 Mon Sep 17 00:00:00 2001
From: Maxim Kuvyrkov <maxim@codesourcery.com>
Date: Wed, 23 Sep 2009 01:25:44 +0400
Subject: [PATCH 271/464] Fix m68k-uclinux's rt_sigreturn trampoline

Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
 arch/m68knommu/kernel/entry.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/m68knommu/kernel/entry.S b/arch/m68knommu/kernel/entry.S
index 56043ade39419..aff6f57ef8b5d 100644
--- a/arch/m68knommu/kernel/entry.S
+++ b/arch/m68knommu/kernel/entry.S
@@ -145,6 +145,6 @@ ENTRY(ret_from_user_signal)
 	trap #0
 
 ENTRY(ret_from_user_rt_signal)
-	move #__NR_rt_sigreturn,%d0
+	movel #__NR_rt_sigreturn,%d0
 	trap #0
 

From 6ecaf44e62274cd3496341ee0189bbbc0ae00976 Mon Sep 17 00:00:00 2001
From: Greg Ungerer <gerg@uclinux.org>
Date: Fri, 19 Feb 2010 11:27:37 +1000
Subject: [PATCH 272/464] m68knommu: remove a duplicate vector setting line for
 68360

Remove a duplicate vector setting line for the 68360 interrupt
setup. Pointed out by Roel Kluin <roel.kluin@gmail.com>

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
 arch/m68knommu/platform/68360/ints.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68knommu/platform/68360/ints.c
index 1143f77caca4d..6f22970d8c203 100644
--- a/arch/m68knommu/platform/68360/ints.c
+++ b/arch/m68knommu/platform/68360/ints.c
@@ -107,7 +107,6 @@ void init_IRQ(void)
 	_ramvec[vba+CPMVEC_PIO_PC7]     = inthandler;  /* pio - pc7 */
 	_ramvec[vba+CPMVEC_PIO_PC6]     = inthandler;  /* pio - pc6 */
 	_ramvec[vba+CPMVEC_TIMER3]      = inthandler;  /* timer 3 */
-	_ramvec[vba+CPMVEC_RISCTIMER]   = inthandler;  /* reserved */
 	_ramvec[vba+CPMVEC_PIO_PC5]     = inthandler;  /* pio - pc5 */
 	_ramvec[vba+CPMVEC_PIO_PC4]     = inthandler;  /* pio - pc4 */
 	_ramvec[vba+CPMVEC_RESERVED2]   = inthandler;  /* reserved */

From 3732b68f22857201fa09cb82b128f295096a2375 Mon Sep 17 00:00:00 2001
From: Philippe De Muyter <phdm@macqel.be>
Date: Fri, 2 Apr 2010 17:56:08 +0200
Subject: [PATCH 273/464] m68knommu: fix coldfire tcdrain

Fix tcdrain on coldfire uarts.
Currently with coldfire uarts tcdrain returns without waiting for txempty,
because (tx)fifosize is 0.  Fix that and call uart_update_timeout when
setting the baud rate, otherwise tcdrain will wait for an half our :)
Also constify mcf_uart_ops.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
 arch/m68k/include/asm/mcfuart.h | 5 +++++
 drivers/serial/mcf.c            | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/m68k/include/asm/mcfuart.h b/arch/m68k/include/asm/mcfuart.h
index ef2293873612c..01a8716c5fc55 100644
--- a/arch/m68k/include/asm/mcfuart.h
+++ b/arch/m68k/include/asm/mcfuart.h
@@ -212,5 +212,10 @@ struct mcf_platform_uart {
 #define	MCFUART_URF_RXS		0xc0		/* Receiver status */
 #endif
 
+#if defined(CONFIG_M5272)
+#define MCFUART_TXFIFOSIZE	25
+#else
+#define MCFUART_TXFIFOSIZE	1
+#endif
 /****************************************************************************/
 #endif	/* mcfuart_h */
diff --git a/drivers/serial/mcf.c b/drivers/serial/mcf.c
index 7bb5fee639e36..b9f7dfe6c5d53 100644
--- a/drivers/serial/mcf.c
+++ b/drivers/serial/mcf.c
@@ -263,6 +263,7 @@ static void mcf_set_termios(struct uart_port *port, struct ktermios *termios,
 	}
 
 	spin_lock_irqsave(&port->lock, flags);
+	uart_update_timeout(port, termios->c_cflag, baud);
 	writeb(MCFUART_UCR_CMDRESETRX, port->membase + MCFUART_UCR);
 	writeb(MCFUART_UCR_CMDRESETTX, port->membase + MCFUART_UCR);
 	writeb(MCFUART_UCR_CMDRESETMRPTR, port->membase + MCFUART_UCR);
@@ -379,6 +380,7 @@ static irqreturn_t mcf_interrupt(int irq, void *data)
 static void mcf_config_port(struct uart_port *port, int flags)
 {
 	port->type = PORT_MCF;
+	port->fifosize = MCFUART_TXFIFOSIZE;
 
 	/* Clear mask, so no surprise interrupts. */
 	writeb(0, port->membase + MCFUART_UIMR);
@@ -424,7 +426,7 @@ static int mcf_verify_port(struct uart_port *port, struct serial_struct *ser)
 /*
  *	Define the basic serial functions we support.
  */
-static struct uart_ops mcf_uart_ops = {
+static const struct uart_ops mcf_uart_ops = {
 	.tx_empty	= mcf_tx_empty,
 	.get_mctrl	= mcf_get_mctrl,
 	.set_mctrl	= mcf_set_mctrl,

From 2545cf6e94b4eb5a2c48dd55751aa9a70ff1ff9d Mon Sep 17 00:00:00 2001
From: Philippe De Muyter <phdm@macqel.be>
Date: Thu, 18 Mar 2010 11:37:13 +0100
Subject: [PATCH 274/464] m68knommu: allow 4 coldfire serial ports

Fix driver/serial/mcf.c for 4-ports coldfire's (e.g. MCF5484).

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
 drivers/serial/mcf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/serial/mcf.c b/drivers/serial/mcf.c
index b9f7dfe6c5d53..b5aaef965f24e 100644
--- a/drivers/serial/mcf.c
+++ b/drivers/serial/mcf.c
@@ -445,7 +445,7 @@ static const struct uart_ops mcf_uart_ops = {
 	.verify_port	= mcf_verify_port,
 };
 
-static struct mcf_uart mcf_ports[3];
+static struct mcf_uart mcf_ports[4];
 
 #define	MCF_MAXPORTS	ARRAY_SIZE(mcf_ports)
 

From 04de0816173c86948b75da93a6344a0a02bbec4d Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Tue, 20 Apr 2010 14:49:01 +0200
Subject: [PATCH 275/464] pcmcia: pcmcia_dev_present bugfix

pcmcia_dev_present is in and by itself buggy. Add a note specifying
why it is broken, and replace the broken locking -- taking a mutex
is a bad idea in IRQ context, from which this function is rarely
called -- by an atomic_t.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/ds.c | 47 ++++++++++++++-------------------------------
 include/pcmcia/ds.h |  7 +++----
 include/pcmcia/ss.h |  8 +++-----
 3 files changed, 20 insertions(+), 42 deletions(-)

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 4014cf8e4a26d..92a5af8aa0b4a 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -335,7 +335,6 @@ static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *le
 
 		mutex_lock(&s->ops_mutex);
 		list_del(&p_dev->socket_device_list);
-		p_dev->_removed = 1;
 		mutex_unlock(&s->ops_mutex);
 
 		dev_dbg(&p_dev->dev, "unregistering device\n");
@@ -654,14 +653,7 @@ static int pcmcia_requery_callback(struct device *dev, void * _data)
 
 static void pcmcia_requery(struct pcmcia_socket *s)
 {
-	int present, has_pfc;
-
-	mutex_lock(&s->ops_mutex);
-	present = s->pcmcia_state.present;
-	mutex_unlock(&s->ops_mutex);
-
-	if (!present)
-		return;
+	int has_pfc;
 
 	if (s->functions == 0) {
 		pcmcia_card_add(s);
@@ -1260,9 +1252,7 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
 
 	switch (event) {
 	case CS_EVENT_CARD_REMOVAL:
-		mutex_lock(&s->ops_mutex);
-		s->pcmcia_state.present = 0;
-		mutex_unlock(&s->ops_mutex);
+		atomic_set(&skt->present, 0);
 		pcmcia_card_remove(skt, NULL);
 		handle_event(skt, event);
 		mutex_lock(&s->ops_mutex);
@@ -1271,9 +1261,9 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
 		break;
 
 	case CS_EVENT_CARD_INSERTION:
+		atomic_set(&skt->present, 1);
 		mutex_lock(&s->ops_mutex);
 		s->pcmcia_state.has_pfc = 0;
-		s->pcmcia_state.present = 1;
 		destroy_cis_cache(s); /* to be on the safe side... */
 		mutex_unlock(&s->ops_mutex);
 		pcmcia_card_add(skt);
@@ -1313,7 +1303,13 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
     return 0;
 } /* ds_event */
 
-
+/*
+ * NOTE: This is racy. There's no guarantee the card will still be
+ * physically present, even if the call to this function returns
+ * non-NULL. Furthermore, the device driver most likely is unbound
+ * almost immediately, so the timeframe where pcmcia_dev_present
+ * returns NULL is probably really really small.
+ */
 struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev)
 {
 	struct pcmcia_device *p_dev;
@@ -1323,22 +1319,9 @@ struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev)
 	if (!p_dev)
 		return NULL;
 
-	mutex_lock(&p_dev->socket->ops_mutex);
-	if (!p_dev->socket->pcmcia_state.present)
-		goto out;
+	if (atomic_read(&p_dev->socket->present) != 0)
+		ret = p_dev;
 
-	if (p_dev->socket->pcmcia_state.dead)
-		goto out;
-
-	if (p_dev->_removed)
-		goto out;
-
-	if (p_dev->suspended)
-		goto out;
-
-	ret = p_dev;
- out:
-	mutex_unlock(&p_dev->socket->ops_mutex);
 	pcmcia_put_dev(p_dev);
 	return ret;
 }
@@ -1388,6 +1371,8 @@ static int __devinit pcmcia_bus_add_socket(struct device *dev,
 		return ret;
 	}
 
+	atomic_set(&socket->present, 0);
+
 	return 0;
 }
 
@@ -1399,10 +1384,6 @@ static void pcmcia_bus_remove_socket(struct device *dev,
 	if (!socket)
 		return;
 
-	mutex_lock(&socket->ops_mutex);
-	socket->pcmcia_state.dead = 1;
-	mutex_unlock(&socket->ops_mutex);
-
 	pccard_register_pcmcia(socket, NULL);
 
 	/* unregister any unbound devices */
diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h
index d57847f2f6c11..aab3c13dc3107 100644
--- a/include/pcmcia/ds.h
+++ b/include/pcmcia/ds.h
@@ -26,6 +26,7 @@
 #ifdef __KERNEL__
 #include <linux/device.h>
 #include <pcmcia/ss.h>
+#include <asm/atomic.h>
 
 /*
  * PCMCIA device drivers (16-bit cards only; 32-bit cards require CardBus
@@ -94,10 +95,8 @@ struct pcmcia_device {
 	config_req_t		conf;
 	window_handle_t		win;
 
-	/* Is the device suspended, or in the process of
-	 * being removed? */
+	/* Is the device suspended? */
 	u16			suspended:1;
-	u16			_removed:1;
 
 	/* Flags whether io, irq, win configurations were
 	 * requested, and whether the configuration is "locked" */
@@ -115,7 +114,7 @@ struct pcmcia_device {
 	u16			has_card_id:1;
 	u16			has_func_id:1;
 
-	u16			reserved:3;
+	u16			reserved:4;
 
 	u8			func_id;
 	u16			manf_id;
diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h
index 2e488b60bc760..344705cb42f41 100644
--- a/include/pcmcia/ss.h
+++ b/include/pcmcia/ss.h
@@ -224,18 +224,16 @@ struct pcmcia_socket {
 
 	/* 16-bit state: */
 	struct {
-		/* PCMCIA card is present in socket */
-		u8			present:1;
 		/* "master" ioctl is used */
 		u8			busy:1;
-		/* pcmcia module is being unloaded */
-		u8			dead:1;
 		/* the PCMCIA card consists of two pseudo devices */
 		u8			has_pfc:1;
 
-		u8			reserved:4;
+		u8			reserved:6;
 	} pcmcia_state;
 
+	/* non-zero if PCMCIA card is present */
+	atomic_t			present;
 
 #ifdef CONFIG_PCMCIA_IOCTL
 	struct user_info_t		*user;

From 6651ffc8e8bdd5fb4b7d1867c6cfebb4f309512c Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 21 Apr 2010 00:47:15 -0700
Subject: [PATCH 276/464] ipv6: Fix tcp_v6_send_response transport header
 setting.

My recent patch to remove the open-coded checksum sequence in
tcp_v6_send_response broke it as we did not set the transport
header pointer on the new packet.

Actually, there is code there trying to set the transport
header properly, but it sets it for the wrong skb ('skb'
instead of 'buff').

This bug was introduced by commit
a8fdf2b331b38d61fb5f11f3aec4a4f9fb2dedcb ("ipv6: Fix
tcp_v6_send_response(): it didn't set skb transport header")

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/tcp_ipv6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index c92ebe8f80d55..075f540ec1975 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1015,7 +1015,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
 	skb_reserve(buff, MAX_HEADER + sizeof(struct ipv6hdr) + tot_len);
 
 	t1 = (struct tcphdr *) skb_push(buff, tot_len);
-	skb_reset_transport_header(skb);
+	skb_reset_transport_header(buff);
 
 	/* Swap the send and the receive. */
 	memset(t1, 0, sizeof(*t1));

From 05d17608a69b3ae653ea5c9857283bef3439c733 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 20 Apr 2010 00:25:58 +0000
Subject: [PATCH 277/464] net: Fix an RCU warning in dev_pick_tx()

Fix the following RCU warning in dev_pick_tx():

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
net/core/dev.c:1993 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
2 locks held by swapper/0:
 #0:  (&idev->mc_ifc_timer){+.-...}, at: [<ffffffff81039e65>] run_timer_softirq+0x17b/0x278
 #1:  (rcu_read_lock_bh){.+....}, at: [<ffffffff812ea3eb>] dev_queue_xmit+0x14e/0x4dc

stack backtrace:
Pid: 0, comm: swapper Not tainted 2.6.34-rc5-cachefs #4
Call Trace:
 <IRQ>  [<ffffffff810516c4>] lockdep_rcu_dereference+0xaa/0xb2
 [<ffffffff812ea4f6>] dev_queue_xmit+0x259/0x4dc
 [<ffffffff812ea3eb>] ? dev_queue_xmit+0x14e/0x4dc
 [<ffffffff81052324>] ? trace_hardirqs_on+0xd/0xf
 [<ffffffff81035362>] ? local_bh_enable_ip+0xbc/0xc1
 [<ffffffff812f0954>] neigh_resolve_output+0x24b/0x27c
 [<ffffffff8134f673>] ip6_output_finish+0x7c/0xb4
 [<ffffffff81350c34>] ip6_output2+0x256/0x261
 [<ffffffff81052324>] ? trace_hardirqs_on+0xd/0xf
 [<ffffffff813517fb>] ip6_output+0xbbc/0xbcb
 [<ffffffff8135bc5d>] ? fib6_force_start_gc+0x2b/0x2d
 [<ffffffff81368acb>] mld_sendpack+0x273/0x39d
 [<ffffffff81368858>] ? mld_sendpack+0x0/0x39d
 [<ffffffff81052099>] ? mark_held_locks+0x52/0x70
 [<ffffffff813692fc>] mld_ifc_timer_expire+0x24f/0x288
 [<ffffffff81039ed6>] run_timer_softirq+0x1ec/0x278
 [<ffffffff81039e65>] ? run_timer_softirq+0x17b/0x278
 [<ffffffff813690ad>] ? mld_ifc_timer_expire+0x0/0x288
 [<ffffffff81035531>] ? __do_softirq+0x69/0x140
 [<ffffffff8103556a>] __do_softirq+0xa2/0x140
 [<ffffffff81002e0c>] call_softirq+0x1c/0x28
 [<ffffffff81004b54>] do_softirq+0x38/0x80
 [<ffffffff81034f06>] irq_exit+0x45/0x47
 [<ffffffff810177c3>] smp_apic_timer_interrupt+0x88/0x96
 [<ffffffff810028d3>] apic_timer_interrupt+0x13/0x20
 <EOI>  [<ffffffff810488dd>] ? __atomic_notifier_call_chain+0x0/0x86
 [<ffffffff810096bf>] ? mwait_idle+0x6e/0x78
 [<ffffffff810096b6>] ? mwait_idle+0x65/0x78
 [<ffffffff810011cb>] cpu_idle+0x4d/0x83
 [<ffffffff81380b05>] rest_init+0xb9/0xc0
 [<ffffffff81380a4c>] ? rest_init+0x0/0xc0
 [<ffffffff8168dcf0>] start_kernel+0x392/0x39d
 [<ffffffff8168d2a3>] x86_64_start_reservations+0xb3/0xb7
 [<ffffffff8168d38b>] x86_64_start_kernel+0xe4/0xeb

An rcu_dereference() should be an rcu_dereference_bh().

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 92584bfef09bc..f769098774b7e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1990,7 +1990,7 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev,
 				queue_index = skb_tx_hash(dev, skb);
 
 			if (sk) {
-				struct dst_entry *dst = rcu_dereference(sk->sk_dst_cache);
+				struct dst_entry *dst = rcu_dereference_bh(sk->sk_dst_cache);
 
 				if (dst && skb_dst(skb) == dst)
 					sk_tx_queue_set(sk, queue_index);

From eda2beda835697878e309b6049aa0a3bad051590 Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Tue, 20 Apr 2010 14:29:29 +0800
Subject: [PATCH 278/464] KVM: Add missing srcu_read_lock() for
 kvm_mmu_notifier_release()

I got this dmesg due to srcu_read_lock() is missing in
kvm_mmu_notifier_release().

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
arch/x86/kvm/x86.h:72 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
2 locks held by qemu-system-x86/3100:
 #0:  (rcu_read_lock){.+.+..}, at: [<ffffffff810d73dc>] __mmu_notifier_release+0x38/0xdf
 #1:  (&(&kvm->mmu_lock)->rlock){+.+...}, at: [<ffffffffa0130a6a>] kvm_mmu_zap_all+0x21/0x5e [kvm]

stack backtrace:
Pid: 3100, comm: qemu-system-x86 Not tainted 2.6.34-rc3-22949-gbc8a97a-dirty #2
Call Trace:
 [<ffffffff8106afd9>] lockdep_rcu_dereference+0xaa/0xb3
 [<ffffffffa0123a89>] unalias_gfn+0x56/0xab [kvm]
 [<ffffffffa0119600>] gfn_to_memslot+0x16/0x25 [kvm]
 [<ffffffffa012ffca>] gfn_to_rmap+0x17/0x6e [kvm]
 [<ffffffffa01300c1>] rmap_remove+0xa0/0x19d [kvm]
 [<ffffffffa0130649>] kvm_mmu_zap_page+0x109/0x34d [kvm]
 [<ffffffffa0130a7e>] kvm_mmu_zap_all+0x35/0x5e [kvm]
 [<ffffffffa0122870>] kvm_arch_flush_shadow+0x16/0x22 [kvm]
 [<ffffffffa01189e0>] kvm_mmu_notifier_release+0x15/0x17 [kvm]
 [<ffffffff810d742c>] __mmu_notifier_release+0x88/0xdf
 [<ffffffff810d73dc>] ? __mmu_notifier_release+0x38/0xdf
 [<ffffffff81040848>] ? exit_mm+0xe0/0x115
 [<ffffffff810c2cb0>] exit_mmap+0x2c/0x17e
 [<ffffffff8103c472>] mmput+0x2d/0xd4
 [<ffffffff81040870>] exit_mm+0x108/0x115
[...]

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 virt/kvm/kvm_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 364daacafb583..c82ae24926340 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -341,7 +341,11 @@ static void kvm_mmu_notifier_release(struct mmu_notifier *mn,
 				     struct mm_struct *mm)
 {
 	struct kvm *kvm = mmu_notifier_to_kvm(mn);
+	int idx;
+
+	idx = srcu_read_lock(&kvm->srcu);
 	kvm_arch_flush_shadow(kvm);
+	srcu_read_unlock(&kvm->srcu, idx);
 }
 
 static const struct mmu_notifier_ops kvm_mmu_notifier_ops = {

From e8861cfe2c75bdce36655b64d7ce02c2b31b604d Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Wed, 14 Apr 2010 16:57:11 +0200
Subject: [PATCH 279/464] KVM: x86: Fix TSS size check for 16-bit tasks

A 16-bit TSS is only 44 bytes long. So make sure to test for the correct
size on task switch.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/x86.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 45aa90f8cc576..3c4ca98ad27fe 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5126,6 +5126,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
 	int ret = 0;
 	u32 old_tss_base = get_segment_base(vcpu, VCPU_SREG_TR);
 	u16 old_tss_sel = get_segment_selector(vcpu, VCPU_SREG_TR);
+	u32 desc_limit;
 
 	old_tss_base = kvm_mmu_gva_to_gpa_write(vcpu, old_tss_base, NULL);
 
@@ -5148,7 +5149,10 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
 		}
 	}
 
-	if (!nseg_desc.p || get_desc_limit(&nseg_desc) < 0x67) {
+	desc_limit = get_desc_limit(&nseg_desc);
+	if (!nseg_desc.p ||
+	    ((desc_limit < 0x67 && (nseg_desc.type & 8)) ||
+	     desc_limit < 0x2b)) {
 		kvm_queue_exception_e(vcpu, TS_VECTOR, tss_selector & 0xfffc);
 		return 1;
 	}

From a534dbe96e9929c7245924d8252d89048c23d569 Mon Sep 17 00:00:00 2001
From: Richard Kennedy <richard@rsk.demon.co.uk>
Date: Wed, 14 Apr 2010 20:54:03 +0200
Subject: [PATCH 280/464] block: ensure jiffies wrap is handled correctly in
 blk_rq_timed_out_timer

blk_rq_timed_out_timer() relied on blk_add_timer() never returning a
timer value of zero, but commit 7838c15b8dd18e78a523513749e5b54bda07b0cb
removed the code that bumped this value when it was zero.
Therefore when jiffies is near wrap we could get unlucky & not set the
timeout value correctly.

This patch uses a flag to indicate that the timeout value was set and so
handles jiffies wrap correctly, and it keeps all the logic in one
function so should be easier to maintain in the future.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 block/blk-timeout.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index 1ba7e0aca8781..4f0c06c7a3388 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -109,6 +109,7 @@ void blk_rq_timed_out_timer(unsigned long data)
 	struct request_queue *q = (struct request_queue *) data;
 	unsigned long flags, next = 0;
 	struct request *rq, *tmp;
+	int next_set = 0;
 
 	spin_lock_irqsave(q->queue_lock, flags);
 
@@ -122,16 +123,13 @@ void blk_rq_timed_out_timer(unsigned long data)
 			if (blk_mark_rq_complete(rq))
 				continue;
 			blk_rq_timed_out(rq);
-		} else if (!next || time_after(next, rq->deadline))
+		} else if (!next_set || time_after(next, rq->deadline)) {
 			next = rq->deadline;
+			next_set = 1;
+		}
 	}
 
-	/*
-	 * next can never be 0 here with the list non-empty, since we always
-	 * bump ->deadline to 1 so we can detect if the timer was ever added
-	 * or not. See comment in blk_add_timer()
-	 */
-	if (next)
+	if (next_set)
 		mod_timer(&q->timeout, round_jiffies_up(next));
 
 	spin_unlock_irqrestore(q->queue_lock, flags);

From 083fd8b21a13742b37ab347089c73f895a896672 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 21 Apr 2010 12:01:23 +0100
Subject: [PATCH 281/464] AFS: Don't pass error value to page_cache_release()
 in error handling

In the error handling in afs_mntpt_do_automount(), we pass an error
pointer to page_cache_release() if read_mapping_page() failed.  Instead,
we should extend the gotos around the error handling we don't need.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/afs/mntpt.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index 5e813a816ce47..b3feddc4f7d64 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -138,9 +138,9 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 {
 	struct afs_super_info *super;
 	struct vfsmount *mnt;
-	struct page *page = NULL;
+	struct page *page;
 	size_t size;
-	char *buf, *devname = NULL, *options = NULL;
+	char *buf, *devname, *options;
 	int ret;
 
 	_enter("{%s}", mntpt->d_name.name);
@@ -150,22 +150,22 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 	ret = -EINVAL;
 	size = mntpt->d_inode->i_size;
 	if (size > PAGE_SIZE - 1)
-		goto error;
+		goto error_no_devname;
 
 	ret = -ENOMEM;
 	devname = (char *) get_zeroed_page(GFP_KERNEL);
 	if (!devname)
-		goto error;
+		goto error_no_devname;
 
 	options = (char *) get_zeroed_page(GFP_KERNEL);
 	if (!options)
-		goto error;
+		goto error_no_options;
 
 	/* read the contents of the AFS special symlink */
 	page = read_mapping_page(mntpt->d_inode->i_mapping, 0, NULL);
 	if (IS_ERR(page)) {
 		ret = PTR_ERR(page);
-		goto error;
+		goto error_no_page;
 	}
 
 	ret = -EIO;
@@ -196,12 +196,12 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 	return mnt;
 
 error:
-	if (page)
-		page_cache_release(page);
-	if (devname)
-		free_page((unsigned long) devname);
-	if (options)
-		free_page((unsigned long) options);
+	page_cache_release(page);
+error_no_page:
+	free_page((unsigned long) options);
+error_no_options:
+	free_page((unsigned long) devname);
+error_no_devname:
 	_leave(" = %d", ret);
 	return ERR_PTR(ret);
 }

From e134d200d57d43b171dcb0b55c178a1a0c7db14a Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 21 Apr 2010 10:28:25 +0100
Subject: [PATCH 282/464] CRED: Fix a race in creds_are_invalid() in
 credentials debugging

creds_are_invalid() reads both cred->usage and cred->subscribers and then
compares them to make sure the number of processes subscribed to a cred struct
never exceeds the refcount of that cred struct.

The problem is that this can cause a race with both copy_creds() and
exit_creds() as the two counters, whilst they are of atomic_t type, are only
atomic with respect to themselves, and not atomic with respect to each other.

This means that if creds_are_invalid() can read the values on one CPU whilst
they're being modified on another CPU, and so can observe an evolving state in
which the subscribers count now is greater than the usage count a moment
before.

Switching the order in which the counts are read cannot help, so the thing to
do is to remove that particular check.

I had considered rechecking the values to see if they're in flux if the test
fails, but I can't guarantee they won't appear the same, even if they've
changed several times in the meantime.

Note that this can only happen if CONFIG_DEBUG_CREDENTIALS is enabled.

The problem is only likely to occur with multithreaded programs, and can be
tested by the tst-eintr1 program from glibc's "make check".  The symptoms look
like:

	CRED: Invalid credentials
	CRED: At include/linux/cred.h:240
	CRED: Specified credentials: ffff88003dda5878 [real][eff]
	CRED: ->magic=43736564, put_addr=(null)
	CRED: ->usage=766, subscr=766
	CRED: ->*uid = { 0,0,0,0 }
	CRED: ->*gid = { 0,0,0,0 }
	CRED: ->security is ffff88003d72f538
	CRED: ->security {359, 359}
	------------[ cut here ]------------
	kernel BUG at kernel/cred.c:850!
	...
	RIP: 0010:[<ffffffff81049889>]  [<ffffffff81049889>] __invalid_creds+0x4e/0x52
	...
	Call Trace:
	 [<ffffffff8104a37b>] copy_creds+0x6b/0x23f

Note the ->usage=766 and subscr=766.  The values appear the same because
they've been re-read since the check was made.

Reported-by: Roland McGrath <roland@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 kernel/cred.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/cred.c b/kernel/cred.c
index ce1a52b9e8a3b..62af1816c2352 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -793,8 +793,6 @@ bool creds_are_invalid(const struct cred *cred)
 {
 	if (cred->magic != CRED_MAGIC)
 		return true;
-	if (atomic_read(&cred->usage) < atomic_read(&cred->subscribers))
-		return true;
 #ifdef CONFIG_SECURITY_SELINUX
 	if (selinux_is_enabled()) {
 		if ((unsigned long) cred->security < PAGE_SIZE)

From 1c0b28b1ee90261a0a27194e6684dd2837785064 Mon Sep 17 00:00:00 2001
From: "Hans J. Koch" <hjk@linutronix.de>
Date: Wed, 21 Apr 2010 00:18:06 +0000
Subject: [PATCH 283/464] can: Fix possible NULL pointer dereference in
 ems_usb.c

In ems_usb_probe(), a pointer is dereferenced after making sure it is NULL...

This patch replaces netdev->dev.parent with &intf->dev in dev_err() calls to
avoid this.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/can/usb/ems_usb.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 33451092b8e8a..d800b598ae3d0 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -1006,7 +1006,7 @@ static int ems_usb_probe(struct usb_interface *intf,
 
 	netdev = alloc_candev(sizeof(struct ems_usb), MAX_TX_URBS);
 	if (!netdev) {
-		dev_err(netdev->dev.parent, "Couldn't alloc candev\n");
+		dev_err(&intf->dev, "ems_usb: Couldn't alloc candev\n");
 		return -ENOMEM;
 	}
 
@@ -1036,20 +1036,20 @@ static int ems_usb_probe(struct usb_interface *intf,
 
 	dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!dev->intr_urb) {
-		dev_err(netdev->dev.parent, "Couldn't alloc intr URB\n");
+		dev_err(&intf->dev, "Couldn't alloc intr URB\n");
 		goto cleanup_candev;
 	}
 
 	dev->intr_in_buffer = kzalloc(INTR_IN_BUFFER_SIZE, GFP_KERNEL);
 	if (!dev->intr_in_buffer) {
-		dev_err(netdev->dev.parent, "Couldn't alloc Intr buffer\n");
+		dev_err(&intf->dev, "Couldn't alloc Intr buffer\n");
 		goto cleanup_intr_urb;
 	}
 
 	dev->tx_msg_buffer = kzalloc(CPC_HEADER_SIZE +
 				     sizeof(struct ems_cpc_msg), GFP_KERNEL);
 	if (!dev->tx_msg_buffer) {
-		dev_err(netdev->dev.parent, "Couldn't alloc Tx buffer\n");
+		dev_err(&intf->dev, "Couldn't alloc Tx buffer\n");
 		goto cleanup_intr_in_buffer;
 	}
 

From bc8e4b954e463716a57d8113dd50ae9d47b682a7 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 21 Apr 2010 16:25:30 -0700
Subject: [PATCH 284/464] xfrm6: ensure to use the same dev when building a
 bundle

When building a bundle, we set dst.dev and rt6.rt6i_idev.
We must ensure to set the same device for both fields.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/xfrm6_policy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index ae181651c75a8..00bf7c962b7e8 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -124,7 +124,7 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
 	xdst->u.dst.dev = dev;
 	dev_hold(dev);
 
-	xdst->u.rt6.rt6i_idev = in6_dev_get(rt->u.dst.dev);
+	xdst->u.rt6.rt6i_idev = in6_dev_get(dev);
 	if (!xdst->u.rt6.rt6i_idev)
 		return -ENODEV;
 

From df245dce572bc22b230a05532a3f9daee50effb5 Mon Sep 17 00:00:00 2001
From: Alexander Kurz <akurz@blala.de>
Date: Fri, 16 Apr 2010 03:01:01 +0000
Subject: [PATCH 285/464] net: 3c574_cs fix stats.tx_bytes counter

Update the stats counter calculation in 3c574_cs, similar
to the method used in 3c589_cs. This corrects the contents
of the counter on tests using a "Megahertz 574B" card.

[linux@dominikbrodowski.net: clean up commit message]
Signed-off-by: Alexander Kurz <linux@kbdbabel.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/pcmcia/3c574_cs.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/pcmcia/3c574_cs.c b/drivers/net/pcmcia/3c574_cs.c
index 3d1d3a7b7ed3c..757f87bb1db30 100644
--- a/drivers/net/pcmcia/3c574_cs.c
+++ b/drivers/net/pcmcia/3c574_cs.c
@@ -781,8 +781,13 @@ static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
 		  inw(ioaddr + EL3_STATUS));
 
 	spin_lock_irqsave(&lp->window_lock, flags);
+
+	dev->stats.tx_bytes += skb->len;
+
+	/* Put out the doubleword header... */
 	outw(skb->len, ioaddr + TX_FIFO);
 	outw(0, ioaddr + TX_FIFO);
+	/* ... and the packet rounded to a doubleword. */
 	outsl(ioaddr + TX_FIFO, skb->data, (skb->len+3)>>2);
 
 	dev->trans_start = jiffies;
@@ -1021,8 +1026,6 @@ static void update_stats(struct net_device *dev)
 	/* BadSSD */				   inb(ioaddr + 12);
 	up					 = inb(ioaddr + 13);
 
-	dev->stats.tx_bytes 			+= tx + ((up & 0xf0) << 12);
-
 	EL3WINDOW(1);
 }
 

From 761172fbf672c5784b2a0d71ca2f4389eb7a2c21 Mon Sep 17 00:00:00 2001
From: Abraham Arce <abraham.arce.moreno@gmail.com>
Date: Fri, 16 Apr 2010 14:48:43 +0000
Subject: [PATCH 286/464] KS8851: NULL pointer dereference if list is empty

Fix NULL pointer dereference in ks8851_tx_work by checking if dequeued
list is already empty before writing the packet to TX FIFO

 Unable to handle kernel NULL pointer dereference at virtual address 00000050
 PC is at ks8851_tx_work+0xdc/0x1b0
 LR is at wait_for_common+0x148/0x164
 pc : [<c01c0df4>]    lr : [<c025a980>]    psr: 20000013
 Backtrace:
  ks8851_tx_work+0x0/0x1b0
  worker_thread+0x0/0x190
  kthread+0x0/0x90

Signed-off-by: Abraham Arce <x0066660@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ks8851.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ks8851.c b/drivers/net/ks8851.c
index 13cc1ca261d9c..9e9f9b3497669 100644
--- a/drivers/net/ks8851.c
+++ b/drivers/net/ks8851.c
@@ -722,12 +722,14 @@ static void ks8851_tx_work(struct work_struct *work)
 		txb = skb_dequeue(&ks->txq);
 		last = skb_queue_empty(&ks->txq);
 
-		ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr | RXQCR_SDA);
-		ks8851_wrpkt(ks, txb, last);
-		ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
-		ks8851_wrreg16(ks, KS_TXQCR, TXQCR_METFE);
+		if (txb != NULL) {
+			ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr | RXQCR_SDA);
+			ks8851_wrpkt(ks, txb, last);
+			ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
+			ks8851_wrreg16(ks, KS_TXQCR, TXQCR_METFE);
 
-		ks8851_done_tx(ks, txb);
+			ks8851_done_tx(ks, txb);
+		}
 	}
 
 	mutex_unlock(&ks->lock);

From 2cec6b014da6fb4a40ba1c6556cdf9681ed3f89e Mon Sep 17 00:00:00 2001
From: andrew hendry <andrew.hendry@gmail.com>
Date: Sat, 17 Apr 2010 14:17:32 +0000
Subject: [PATCH 287/464] X25 fix dead unaccepted sockets

1, An X25 program binds and listens
2, calls arrive waiting to be accepted
3, Program exits without accepting
4, Sockets time out but don't get correctly cleaned up
5, cat /proc/net/x25/socket shows the dead sockets with bad inode fields.

This line borrowed from AX25 sets the dying socket so the timers clean up later.

Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/x25/af_x25.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index cbddd0cb83f1a..36e84e13c6aa9 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -402,6 +402,7 @@ static void __x25_destroy_socket(struct sock *sk)
 			/*
 			 * Queue the unaccepted socket for death
 			 */
+			skb->sk->sk_state = TCP_LISTEN;
 			sock_set_flag(skb->sk, SOCK_DEAD);
 			x25_start_heartbeat(skb->sk);
 			x25_sk(skb->sk)->state = X25_STATE_0;

From 9441cad99b4b09d6b627351c2d282833868c116c Mon Sep 17 00:00:00 2001
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Mon, 19 Apr 2010 15:32:20 +0000
Subject: [PATCH 288/464] cxgb3: fix linkup issue

I encountered an issue that not to link up on cxgb3 fabric.
I bisected and found that this regression was introduced by
0f07c4ee8c800923ae7918c231532a9256233eed.

Correct to pass phy_addr to cphy_init() at t3_xaui_direct_phy_prep().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/cxgb3/ael1002.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cxgb3/ael1002.c b/drivers/net/cxgb3/ael1002.c
index 5248f9e0b2f4c..35cd36729155e 100644
--- a/drivers/net/cxgb3/ael1002.c
+++ b/drivers/net/cxgb3/ael1002.c
@@ -934,7 +934,7 @@ static struct cphy_ops xaui_direct_ops = {
 int t3_xaui_direct_phy_prep(struct cphy *phy, struct adapter *adapter,
 			    int phy_addr, const struct mdio_ops *mdio_ops)
 {
-	cphy_init(phy, adapter, MDIO_PRTAD_NONE, &xaui_direct_ops, mdio_ops,
+	cphy_init(phy, adapter, phy_addr, &xaui_direct_ops, mdio_ops,
 		  SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_TP,
 		  "10GBASE-CX4");
 	return 0;

From a19259c3d589a014e5f47f148f74dfc44422c82b Mon Sep 17 00:00:00 2001
From: Diego Giagio <diego@giagio.com>
Date: Sun, 18 Apr 2010 08:35:16 +0000
Subject: [PATCH 289/464] drivers/net/usb: Add new driver ipheth
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add new driver to use tethering with an iPhone device. After initial submission,
apply fixes to fit the new driver into the kernel standards.

There are still a couple of minor (almost cosmetic-level) issues, but the driver
is fully functional right now.

Signed-off-by: L. Alberto Giménez <agimenez@sysvalve.es>
Signed-off-by: Diego Giagio <diego@giagio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/Makefile     |   1 +
 drivers/net/usb/Kconfig  |  12 +
 drivers/net/usb/Makefile |   1 +
 drivers/net/usb/ipheth.c | 568 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 582 insertions(+)
 create mode 100644 drivers/net/usb/ipheth.c

diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index a583b50d9de8b..12b280afdd518 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -273,6 +273,7 @@ obj-$(CONFIG_USB_RTL8150)       += usb/
 obj-$(CONFIG_USB_HSO)		+= usb/
 obj-$(CONFIG_USB_USBNET)        += usb/
 obj-$(CONFIG_USB_ZD1201)        += usb/
+obj-$(CONFIG_USB_IPHETH)        += usb/
 
 obj-y += wireless/
 obj-$(CONFIG_NET_TULIP) += tulip/
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index ba56ce4382d92..63be4caec70ef 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -385,4 +385,16 @@ config USB_CDC_PHONET
 	  cellular modem, as found on most Nokia handsets with the
 	  "PC suite" USB profile.
 
+config USB_IPHETH
+	tristate "Apple iPhone USB Ethernet driver"
+	default n
+	---help---
+	  Module used to share Internet connection (tethering) from your
+	  iPhone (Original, 3G and 3GS) to your system.
+	  Note that you need userspace libraries and programs that are needed
+	  to pair your device with your system and that understand the iPhone
+	  protocol.
+
+	  For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
+
 endmenu
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 82ea62955b56e..edb09c0ddf8e1 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -23,4 +23,5 @@ obj-$(CONFIG_USB_NET_MCS7830)	+= mcs7830.o
 obj-$(CONFIG_USB_USBNET)	+= usbnet.o
 obj-$(CONFIG_USB_NET_INT51X1)	+= int51x1.o
 obj-$(CONFIG_USB_CDC_PHONET)	+= cdc-phonet.o
+obj-$(CONFIG_USB_IPHETH)	+= ipheth.o
 
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
new file mode 100644
index 0000000000000..fd1033130a81f
--- /dev/null
+++ b/drivers/net/usb/ipheth.c
@@ -0,0 +1,568 @@
+/*
+ * ipheth.c - Apple iPhone USB Ethernet driver
+ *
+ * Copyright (c) 2009 Diego Giagio <diego@giagio.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of GIAGIO.COM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ *
+ * Attention: iPhone device must be paired, otherwise it won't respond to our
+ * driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/workqueue.h>
+
+#define USB_VENDOR_APPLE        0x05ac
+#define USB_PRODUCT_IPHONE      0x1290
+#define USB_PRODUCT_IPHONE_3G   0x1292
+#define USB_PRODUCT_IPHONE_3GS  0x1294
+
+#define IPHETH_USBINTF_CLASS    255
+#define IPHETH_USBINTF_SUBCLASS 253
+#define IPHETH_USBINTF_PROTO    1
+
+#define IPHETH_BUF_SIZE         1516
+#define IPHETH_TX_TIMEOUT       (5 * HZ)
+
+#define IPHETH_INTFNUM          2
+#define IPHETH_ALT_INTFNUM      1
+
+#define IPHETH_CTRL_ENDP        0x00
+#define IPHETH_CTRL_BUF_SIZE    0x40
+#define IPHETH_CTRL_TIMEOUT     (5 * HZ)
+
+#define IPHETH_CMD_GET_MACADDR   0x00
+#define IPHETH_CMD_CARRIER_CHECK 0x45
+
+#define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ)
+#define IPHETH_CARRIER_ON       0x04
+
+static struct usb_device_id ipheth_table[] = {
+	{ USB_DEVICE_AND_INTERFACE_INFO(
+		USB_VENDOR_APPLE, USB_PRODUCT_IPHONE,
+		IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+		IPHETH_USBINTF_PROTO) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(
+		USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G,
+		IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+		IPHETH_USBINTF_PROTO) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(
+		USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS,
+		IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+		IPHETH_USBINTF_PROTO) },
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, ipheth_table);
+
+struct ipheth_device {
+	struct usb_device *udev;
+	struct usb_interface *intf;
+	struct net_device *net;
+	struct sk_buff *tx_skb;
+	struct urb *tx_urb;
+	struct urb *rx_urb;
+	unsigned char *tx_buf;
+	unsigned char *rx_buf;
+	unsigned char *ctrl_buf;
+	u8 bulk_in;
+	u8 bulk_out;
+	struct delayed_work carrier_work;
+};
+
+static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags);
+
+static int ipheth_alloc_urbs(struct ipheth_device *iphone)
+{
+	struct urb *tx_urb = NULL;
+	struct urb *rx_urb = NULL;
+	u8 *tx_buf = NULL;
+	u8 *rx_buf = NULL;
+
+	tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (tx_urb == NULL)
+		goto error;
+
+	rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (rx_urb == NULL)
+		goto error;
+
+	tx_buf = usb_buffer_alloc(iphone->udev,
+				  IPHETH_BUF_SIZE,
+				  GFP_KERNEL,
+				  &tx_urb->transfer_dma);
+	if (tx_buf == NULL)
+		goto error;
+
+	rx_buf = usb_buffer_alloc(iphone->udev,
+				  IPHETH_BUF_SIZE,
+				  GFP_KERNEL,
+				  &rx_urb->transfer_dma);
+	if (rx_buf == NULL)
+		goto error;
+
+
+	iphone->tx_urb = tx_urb;
+	iphone->rx_urb = rx_urb;
+	iphone->tx_buf = tx_buf;
+	iphone->rx_buf = rx_buf;
+	return 0;
+
+error:
+	usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, rx_buf,
+			rx_urb->transfer_dma);
+	usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
+			tx_urb->transfer_dma);
+	usb_free_urb(rx_urb);
+	usb_free_urb(tx_urb);
+	return -ENOMEM;
+}
+
+static void ipheth_free_urbs(struct ipheth_device *iphone)
+{
+	usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
+			iphone->rx_urb->transfer_dma);
+	usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
+			iphone->tx_urb->transfer_dma);
+	usb_free_urb(iphone->rx_urb);
+	usb_free_urb(iphone->tx_urb);
+}
+
+static void ipheth_kill_urbs(struct ipheth_device *dev)
+{
+	usb_kill_urb(dev->tx_urb);
+	usb_kill_urb(dev->rx_urb);
+}
+
+static void ipheth_rcvbulk_callback(struct urb *urb)
+{
+	struct ipheth_device *dev;
+	struct sk_buff *skb;
+	int status;
+	char *buf;
+	int len;
+
+	dev = urb->context;
+	if (dev == NULL)
+		return;
+
+	status = urb->status;
+	switch (status) {
+	case -ENOENT:
+	case -ECONNRESET:
+	case -ESHUTDOWN:
+		return;
+	case 0:
+		break;
+	default:
+		err("%s: urb status: %d", __func__, urb->status);
+		return;
+	}
+
+	len = urb->actual_length;
+	buf = urb->transfer_buffer;
+
+	skb = dev_alloc_skb(NET_IP_ALIGN + len);
+	if (!skb) {
+		err("%s: dev_alloc_skb: -ENOMEM", __func__);
+		dev->net->stats.rx_dropped++;
+		return;
+	}
+
+	skb_reserve(skb, NET_IP_ALIGN);
+	memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN);
+	skb->dev = dev->net;
+	skb->protocol = eth_type_trans(skb, dev->net);
+
+	dev->net->stats.rx_packets++;
+	dev->net->stats.rx_bytes += len;
+
+	netif_rx(skb);
+	ipheth_rx_submit(dev, GFP_ATOMIC);
+}
+
+static void ipheth_sndbulk_callback(struct urb *urb)
+{
+	struct ipheth_device *dev;
+
+	dev = urb->context;
+	if (dev == NULL)
+		return;
+
+	if (urb->status != 0 &&
+	    urb->status != -ENOENT &&
+	    urb->status != -ECONNRESET &&
+	    urb->status != -ESHUTDOWN)
+		err("%s: urb status: %d", __func__, urb->status);
+
+	dev_kfree_skb_irq(dev->tx_skb);
+	netif_wake_queue(dev->net);
+}
+
+static int ipheth_carrier_set(struct ipheth_device *dev)
+{
+	struct usb_device *udev = dev->udev;
+	int retval;
+
+	retval = usb_control_msg(udev,
+			usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
+			IPHETH_CMD_CARRIER_CHECK, /* request */
+			0xc0, /* request type */
+			0x00, /* value */
+			0x02, /* index */
+			dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE,
+			IPHETH_CTRL_TIMEOUT);
+	if (retval < 0) {
+		err("%s: usb_control_msg: %d", __func__, retval);
+		return retval;
+	}
+
+	if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON)
+		netif_carrier_on(dev->net);
+	else
+		netif_carrier_off(dev->net);
+
+	return 0;
+}
+
+static void ipheth_carrier_check_work(struct work_struct *work)
+{
+	struct ipheth_device *dev = container_of(work, struct ipheth_device,
+						 carrier_work.work);
+
+	ipheth_carrier_set(dev);
+	schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
+}
+
+static int ipheth_get_macaddr(struct ipheth_device *dev)
+{
+	struct usb_device *udev = dev->udev;
+	struct net_device *net = dev->net;
+	int retval;
+
+	retval = usb_control_msg(udev,
+				 usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
+				 IPHETH_CMD_GET_MACADDR, /* request */
+				 0xc0, /* request type */
+				 0x00, /* value */
+				 0x02, /* index */
+				 dev->ctrl_buf,
+				 IPHETH_CTRL_BUF_SIZE,
+				 IPHETH_CTRL_TIMEOUT);
+	if (retval < 0) {
+		err("%s: usb_control_msg: %d", __func__, retval);
+	} else if (retval < ETH_ALEN) {
+		err("%s: usb_control_msg: short packet: %d bytes",
+			__func__, retval);
+		retval = -EINVAL;
+	} else {
+		memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN);
+		retval = 0;
+	}
+
+	return retval;
+}
+
+static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags)
+{
+	struct usb_device *udev = dev->udev;
+	int retval;
+
+	usb_fill_bulk_urb(dev->rx_urb, udev,
+			  usb_rcvbulkpipe(udev, dev->bulk_in),
+			  dev->rx_buf, IPHETH_BUF_SIZE,
+			  ipheth_rcvbulk_callback,
+			  dev);
+	dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	retval = usb_submit_urb(dev->rx_urb, mem_flags);
+	if (retval)
+		err("%s: usb_submit_urb: %d", __func__, retval);
+	return retval;
+}
+
+static int ipheth_open(struct net_device *net)
+{
+	struct ipheth_device *dev = netdev_priv(net);
+	struct usb_device *udev = dev->udev;
+	int retval = 0;
+
+	usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM);
+
+	retval = ipheth_carrier_set(dev);
+	if (retval)
+		return retval;
+
+	retval = ipheth_rx_submit(dev, GFP_KERNEL);
+	if (retval)
+		return retval;
+
+	schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
+	netif_start_queue(net);
+	return retval;
+}
+
+static int ipheth_close(struct net_device *net)
+{
+	struct ipheth_device *dev = netdev_priv(net);
+
+	cancel_delayed_work_sync(&dev->carrier_work);
+	netif_stop_queue(net);
+	return 0;
+}
+
+static int ipheth_tx(struct sk_buff *skb, struct net_device *net)
+{
+	struct ipheth_device *dev = netdev_priv(net);
+	struct usb_device *udev = dev->udev;
+	int retval;
+
+	/* Paranoid */
+	if (skb->len > IPHETH_BUF_SIZE) {
+		WARN(1, "%s: skb too large: %d bytes", __func__, skb->len);
+		dev->net->stats.tx_dropped++;
+		dev_kfree_skb_irq(skb);
+		return NETDEV_TX_OK;
+	}
+
+	memcpy(dev->tx_buf, skb->data, skb->len);
+	if (skb->len < IPHETH_BUF_SIZE)
+		memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len);
+
+	usb_fill_bulk_urb(dev->tx_urb, udev,
+			  usb_sndbulkpipe(udev, dev->bulk_out),
+			  dev->tx_buf, IPHETH_BUF_SIZE,
+			  ipheth_sndbulk_callback,
+			  dev);
+	dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC);
+	if (retval) {
+		err("%s: usb_submit_urb: %d", __func__, retval);
+		dev->net->stats.tx_errors++;
+		dev_kfree_skb_irq(skb);
+	} else {
+		dev->tx_skb = skb;
+
+		dev->net->stats.tx_packets++;
+		dev->net->stats.tx_bytes += skb->len;
+		netif_stop_queue(net);
+	}
+
+	return NETDEV_TX_OK;
+}
+
+static void ipheth_tx_timeout(struct net_device *net)
+{
+	struct ipheth_device *dev = netdev_priv(net);
+
+	err("%s: TX timeout", __func__);
+	dev->net->stats.tx_errors++;
+	usb_unlink_urb(dev->tx_urb);
+}
+
+static struct net_device_stats *ipheth_stats(struct net_device *net)
+{
+	struct ipheth_device *dev = netdev_priv(net);
+	return &dev->net->stats;
+}
+
+static u32 ipheth_ethtool_op_get_link(struct net_device *net)
+{
+	struct ipheth_device *dev = netdev_priv(net);
+	return netif_carrier_ok(dev->net);
+}
+
+static struct ethtool_ops ops = {
+	.get_link = ipheth_ethtool_op_get_link
+};
+
+static const struct net_device_ops ipheth_netdev_ops = {
+	.ndo_open = &ipheth_open,
+	.ndo_stop = &ipheth_close,
+	.ndo_start_xmit = &ipheth_tx,
+	.ndo_tx_timeout = &ipheth_tx_timeout,
+	.ndo_get_stats = &ipheth_stats,
+};
+
+static struct device_type ipheth_type = {
+	.name	= "wwan",
+};
+
+static int ipheth_probe(struct usb_interface *intf,
+			const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_host_interface *hintf;
+	struct usb_endpoint_descriptor *endp;
+	struct ipheth_device *dev;
+	struct net_device *netdev;
+	int i;
+	int retval;
+
+	netdev = alloc_etherdev(sizeof(struct ipheth_device));
+	if (!netdev)
+		return -ENOMEM;
+
+	netdev->netdev_ops = &ipheth_netdev_ops;
+	netdev->watchdog_timeo = IPHETH_TX_TIMEOUT;
+	strcpy(netdev->name, "wwan%d");
+
+	dev = netdev_priv(netdev);
+	dev->udev = udev;
+	dev->net = netdev;
+	dev->intf = intf;
+
+	/* Set up endpoints */
+	hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM);
+	if (hintf == NULL) {
+		retval = -ENODEV;
+		err("Unable to find alternate settings interface");
+		goto err_endpoints;
+	}
+
+	for (i = 0; i < hintf->desc.bNumEndpoints; i++) {
+		endp = &hintf->endpoint[i].desc;
+		if (usb_endpoint_is_bulk_in(endp))
+			dev->bulk_in = endp->bEndpointAddress;
+		else if (usb_endpoint_is_bulk_out(endp))
+			dev->bulk_out = endp->bEndpointAddress;
+	}
+	if (!(dev->bulk_in && dev->bulk_out)) {
+		retval = -ENODEV;
+		err("Unable to find endpoints");
+		goto err_endpoints;
+	}
+
+	dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL);
+	if (dev->ctrl_buf == NULL) {
+		retval = -ENOMEM;
+		goto err_alloc_ctrl_buf;
+	}
+
+	retval = ipheth_get_macaddr(dev);
+	if (retval)
+		goto err_get_macaddr;
+
+	INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work);
+
+	retval = ipheth_alloc_urbs(dev);
+	if (retval) {
+		err("error allocating urbs: %d", retval);
+		goto err_alloc_urbs;
+	}
+
+	usb_set_intfdata(intf, dev);
+
+	SET_NETDEV_DEV(netdev, &intf->dev);
+	SET_ETHTOOL_OPS(netdev, &ops);
+	SET_NETDEV_DEVTYPE(netdev, &ipheth_type);
+
+	retval = register_netdev(netdev);
+	if (retval) {
+		err("error registering netdev: %d", retval);
+		retval = -EIO;
+		goto err_register_netdev;
+	}
+
+	dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n");
+	return 0;
+
+err_register_netdev:
+	ipheth_free_urbs(dev);
+err_alloc_urbs:
+err_get_macaddr:
+err_alloc_ctrl_buf:
+	kfree(dev->ctrl_buf);
+err_endpoints:
+	free_netdev(netdev);
+	return retval;
+}
+
+static void ipheth_disconnect(struct usb_interface *intf)
+{
+	struct ipheth_device *dev;
+
+	dev = usb_get_intfdata(intf);
+	if (dev != NULL) {
+		unregister_netdev(dev->net);
+		ipheth_kill_urbs(dev);
+		ipheth_free_urbs(dev);
+		kfree(dev->ctrl_buf);
+		free_netdev(dev->net);
+	}
+	usb_set_intfdata(intf, NULL);
+	dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n");
+}
+
+static struct usb_driver ipheth_driver = {
+	.name =		"ipheth",
+	.probe =	ipheth_probe,
+	.disconnect =	ipheth_disconnect,
+	.id_table =	ipheth_table,
+};
+
+static int __init ipheth_init(void)
+{
+	int retval;
+
+	retval = usb_register(&ipheth_driver);
+	if (retval) {
+		err("usb_register failed: %d", retval);
+		return retval;
+	}
+	return 0;
+}
+
+static void __exit ipheth_exit(void)
+{
+	usb_deregister(&ipheth_driver);
+}
+
+module_init(ipheth_init);
+module_exit(ipheth_exit);
+
+MODULE_AUTHOR("Diego Giagio <diego@giagio.com>");
+MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver");
+MODULE_LICENSE("Dual BSD/GPL");

From f2228f785a9d97307aa8ba709088cfda6c3df73f Mon Sep 17 00:00:00 2001
From: Shan Wei <shanwei@cn.fujitsu.com>
Date: Sun, 18 Apr 2010 16:58:22 +0000
Subject: [PATCH 290/464] ipv6: allow to send packet after receiving ICMPv6 Too
 Big message with MTU field less than IPV6_MIN_MTU

According to RFC2460, PMTU is set to the IPv6 Minimum Link
MTU (1280) and a fragment header should always be included
after a node receiving Too Big message reporting PMTU is
less than the IPv6 Minimum Link MTU.

After receiving a ICMPv6 Too Big message reporting PMTU is
less than the IPv6 Minimum Link MTU, sctp *can't* send any
data/control chunk that total length including IPv6 head
and IPv6 extend head is less than IPV6_MIN_MTU(1280 bytes).

The failure occured in p6_fragment(), about reason
see following(take SHUTDOWN chunk for example):
sctp_packet_transmit (SHUTDOWN chunk, len=16 byte)
|------sctp_v6_xmit (local_df=0)
   |------ip6_xmit
       |------ip6_output (dst_allfrag is ture)
           |------ip6_fragment

In ip6_fragment(), for local_df=0, drops the the packet
and returns EMSGSIZE.

The patch fixes it with adding check length of skb->len.
In this case, Ipv6 not to fragment upper protocol data,
just only add a fragment header before it.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 65f9c379df386..75d5ef830097f 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -629,7 +629,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 	/* We must not fragment if the socket is set to force MTU discovery
 	 * or if the skb it not generated by a local socket.
 	 */
-	if (!skb->local_df) {
+	if (!skb->local_df && skb->len > mtu) {
 		skb->dev = skb_dst(skb)->dev;
 		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
 		IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),

From f4f914b58019f0e50d521bbbadfaee260d766f95 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 20 Apr 2010 21:21:26 +0000
Subject: [PATCH 291/464] net: ipv6 bind to device issue

The issue raises when having 2 NICs both assigned the same
IPv6 global address.

If a sender binds to a particular NIC (SO_BINDTODEVICE),
the outgoing traffic is being sent via the first found.
The bonded device is thus not taken into an account during the
routing.

From the ip6_route_output function:

If the binding address is multicast, linklocal or loopback,
the RT6_LOOKUP_F_IFACE bit is set, but not for global address.

So binding global address will neglect SO_BINDTODEVICE-binded device,
because the fib6_rule_lookup function path won't check for the
flowi::oif field and take first route that fits.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Scott Otto <scott.otto@alcatel-lucent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/route.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c2438e8cb9d0e..05ebd7833043c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -815,7 +815,7 @@ struct dst_entry * ip6_route_output(struct net *net, struct sock *sk,
 {
 	int flags = 0;
 
-	if (rt6_need_strict(&fl->fl6_dst))
+	if (fl->oif || rt6_need_strict(&fl->fl6_dst))
 		flags |= RT6_LOOKUP_F_IFACE;
 
 	if (!ipv6_addr_any(&fl->fl6_src))

From aac78daf8f37256283f56820ae858add7139c56c Mon Sep 17 00:00:00 2001
From: Daniel T Chen <crimsun@ubuntu.com>
Date: Wed, 21 Apr 2010 20:41:52 -0400
Subject: [PATCH 292/464] ALSA: hda: Use STAC_DELL_M6_BOTH quirk for Dell
 Studio XPS 1645

BugLink: https://launchpad.net/bugs/553002

The OR has verified that the dell-m6 model quirk is necessary for audio
to be audible by default on the Dell Studio XPS 1645.

This change is necessary for 2.6.32.11 and 2.6.33.2 alike.

Reported-by: Robert Chambers
Tested-by: Robert Chambers
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_sigmatel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index c4be3fab94e58..81ecd9388a80d 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -1607,6 +1607,8 @@ static struct snd_pci_quirk stac92hd73xx_cfg_tbl[] = {
 				"Dell Studio 1555", STAC_DELL_M6_DMIC),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x02bd,
 				"Dell Studio 1557", STAC_DELL_M6_DMIC),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x02fe,
+				"Dell Studio XPS 1645", STAC_DELL_M6_BOTH),
 	{} /* terminator */
 };
 

From c3c532061e46156e8aab1268f38d66cfb63aeb2d Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 11:37:01 +0200
Subject: [PATCH 293/464] bdi: add helper function for doing init and register
 of a bdi for a file system

Pretty trivial helper, just sets up the bdi and registers it. An atomic
sequence count is used to ensure that the registered sysfs names are
unique.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 include/linux/backing-dev.h |  1 +
 mm/backing-dev.c            | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index fcbc26af00e47..e19c677f219c1 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -101,6 +101,7 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent,
 		const char *fmt, ...);
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
 void bdi_unregister(struct backing_dev_info *bdi);
+int bdi_setup_and_register(struct backing_dev_info *, char *, unsigned int);
 void bdi_start_writeback(struct backing_dev_info *bdi, struct super_block *sb,
 				long nr_pages);
 int bdi_writeback_task(struct bdi_writeback *wb);
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index f13e067e1467d..dbda4707f5936 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -11,6 +11,8 @@
 #include <linux/writeback.h>
 #include <linux/device.h>
 
+static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
+
 void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
 {
 }
@@ -715,6 +717,33 @@ void bdi_destroy(struct backing_dev_info *bdi)
 }
 EXPORT_SYMBOL(bdi_destroy);
 
+/*
+ * For use from filesystems to quickly init and register a bdi associated
+ * with dirty writeback
+ */
+int bdi_setup_and_register(struct backing_dev_info *bdi, char *name,
+			   unsigned int cap)
+{
+	char tmp[32];
+	int err;
+
+	bdi->name = name;
+	bdi->capabilities = cap;
+	err = bdi_init(bdi);
+	if (err)
+		return err;
+
+	sprintf(tmp, "%.28s%s", name, "-%d");
+	err = bdi_register(bdi, NULL, tmp, atomic_long_inc_return(&bdi_seq));
+	if (err) {
+		bdi_destroy(bdi);
+		return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(bdi_setup_and_register);
+
 static wait_queue_head_t congestion_wqh[2] = {
 		__WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[0]),
 		__WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[1])

From 0ed07ddb56d1348e5ce33f3b8de20d730351983a Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 11:42:00 +0200
Subject: [PATCH 294/464] 9p: add bdi backing to mount session

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/9p/v9fs.c      | 10 ++++++++++
 fs/9p/v9fs.h      |  2 ++
 fs/9p/vfs_super.c |  1 +
 3 files changed, 13 insertions(+)

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 5c5bc8480070b..f8b86e92cd660 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -238,6 +238,13 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	rc = bdi_setup_and_register(&v9ses->bdi, "9p", BDI_CAP_MAP_COPY);
+	if (rc) {
+		__putname(v9ses->aname);
+		__putname(v9ses->uname);
+		return ERR_PTR(rc);
+	}
+
 	spin_lock(&v9fs_sessionlist_lock);
 	list_add(&v9ses->slist, &v9fs_sessionlist);
 	spin_unlock(&v9fs_sessionlist_lock);
@@ -301,6 +308,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
 	return fid;
 
 error:
+	bdi_destroy(&v9ses->bdi);
 	return ERR_PTR(retval);
 }
 
@@ -326,6 +334,8 @@ void v9fs_session_close(struct v9fs_session_info *v9ses)
 	__putname(v9ses->uname);
 	__putname(v9ses->aname);
 
+	bdi_destroy(&v9ses->bdi);
+
 	spin_lock(&v9fs_sessionlist_lock);
 	list_del(&v9ses->slist);
 	spin_unlock(&v9fs_sessionlist_lock);
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index a0a8d3dd13616..bec4d0bcb4585 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -20,6 +20,7 @@
  *  Boston, MA  02111-1301  USA
  *
  */
+#include <linux/backing-dev.h>
 
 /**
  * enum p9_session_flags - option flags for each 9P session
@@ -102,6 +103,7 @@ struct v9fs_session_info {
 	u32 uid;		/* if ACCESS_SINGLE, the uid that has access */
 	struct p9_client *clnt;	/* 9p client */
 	struct list_head slist; /* list of sessions registered with v9fs */
+	struct backing_dev_info bdi;
 };
 
 struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *,
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 491108bd6e0d9..806da5d3b3a08 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -77,6 +77,7 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
 	sb->s_blocksize = 1 << sb->s_blocksize_bits;
 	sb->s_magic = V9FS_MAGIC;
 	sb->s_op = &v9fs_super_ops;
+	sb->s_bdi = &v9ses->bdi;
 
 	sb->s_flags = flags | MS_ACTIVE | MS_SYNCHRONOUS | MS_DIRSYNC |
 	    MS_NOATIME;

From e1da0222753a2322d76c97fc02396fb83143c7ac Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 11:58:18 +0200
Subject: [PATCH 295/464] afs: add bdi backing to mount session.

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/afs/internal.h | 2 ++
 fs/afs/super.c    | 1 +
 fs/afs/volume.c   | 7 +++++++
 3 files changed, 10 insertions(+)

diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index c54dad4e60636..a10f2582844fe 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -19,6 +19,7 @@
 #include <linux/workqueue.h>
 #include <linux/sched.h>
 #include <linux/fscache.h>
+#include <linux/backing-dev.h>
 
 #include "afs.h"
 #include "afs_vl.h"
@@ -313,6 +314,7 @@ struct afs_volume {
 	unsigned short		rjservers;	/* number of servers discarded due to -ENOMEDIUM */
 	struct afs_server	*servers[8];	/* servers on which volume resides (ordered) */
 	struct rw_semaphore	server_sem;	/* lock for accessing current server */
+	struct backing_dev_info	bdi;
 };
 
 /*
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 14f6431598adf..e932e5a3a0c1f 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -311,6 +311,7 @@ static int afs_fill_super(struct super_block *sb, void *data)
 	sb->s_magic		= AFS_FS_MAGIC;
 	sb->s_op		= &afs_super_ops;
 	sb->s_fs_info		= as;
+	sb->s_bdi		= &as->volume->bdi;
 
 	/* allocate the root inode and dentry */
 	fid.vid		= as->volume->vid;
diff --git a/fs/afs/volume.c b/fs/afs/volume.c
index a353e69e2391b..401eeb21869ff 100644
--- a/fs/afs/volume.c
+++ b/fs/afs/volume.c
@@ -106,6 +106,10 @@ struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
 	volume->cell		= params->cell;
 	volume->vid		= vlocation->vldb.vid[params->type];
 
+	ret = bdi_setup_and_register(&volume->bdi, "afs", BDI_CAP_MAP_COPY);
+	if (ret)
+		goto error_bdi;
+
 	init_rwsem(&volume->server_sem);
 
 	/* look up all the applicable server records */
@@ -151,6 +155,8 @@ struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
 	return ERR_PTR(ret);
 
 error_discard:
+	bdi_destroy(&volume->bdi);
+error_bdi:
 	up_write(&params->cell->vl_sem);
 
 	for (loop = volume->nservers - 1; loop >= 0; loop--)
@@ -200,6 +206,7 @@ void afs_put_volume(struct afs_volume *volume)
 	for (loop = volume->nservers - 1; loop >= 0; loop--)
 		afs_put_server(volume->servers[loop]);
 
+	bdi_destroy(&volume->bdi);
 	kfree(volume);
 
 	_leave(" [destroyed]");

From 8044f7f468469c80031611206d554f86fcdfe704 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 12:09:48 +0200
Subject: [PATCH 296/464] cifs: add bdi backing to mount session

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/cifs/cifs_fs_sb.h |  3 +++
 fs/cifs/cifsfs.c     | 10 ++++++++++
 2 files changed, 13 insertions(+)

diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 4797787c6a445..246a167cb9135 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -18,6 +18,8 @@
 #ifndef _CIFS_FS_SB_H
 #define _CIFS_FS_SB_H
 
+#include <linux/backing-dev.h>
+
 #define CIFS_MOUNT_NO_PERM      1 /* do not do client vfs_perm check */
 #define CIFS_MOUNT_SET_UID      2 /* set current's euid in create etc. */
 #define CIFS_MOUNT_SERVER_INUM  4 /* inode numbers from uniqueid from server  */
@@ -50,5 +52,6 @@ struct cifs_sb_info {
 #ifdef CONFIG_CIFS_DFS_UPCALL
 	char   *mountdata; /* mount options received at mount time */
 #endif
+	struct backing_dev_info bdi;
 };
 #endif				/* _CIFS_FS_SB_H */
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index ded66be6597c9..ad235d604a0b8 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -103,6 +103,12 @@ cifs_read_super(struct super_block *sb, void *data,
 	if (cifs_sb == NULL)
 		return -ENOMEM;
 
+	rc = bdi_setup_and_register(&cifs_sb->bdi, "cifs", BDI_CAP_MAP_COPY);
+	if (rc) {
+		kfree(cifs_sb);
+		return rc;
+	}
+
 #ifdef CONFIG_CIFS_DFS_UPCALL
 	/* copy mount params to sb for use in submounts */
 	/* BB: should we move this after the mount so we
@@ -115,6 +121,7 @@ cifs_read_super(struct super_block *sb, void *data,
 		int len = strlen(data);
 		cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL);
 		if (cifs_sb->mountdata == NULL) {
+			bdi_destroy(&cifs_sb->bdi);
 			kfree(sb->s_fs_info);
 			sb->s_fs_info = NULL;
 			return -ENOMEM;
@@ -135,6 +142,7 @@ cifs_read_super(struct super_block *sb, void *data,
 
 	sb->s_magic = CIFS_MAGIC_NUMBER;
 	sb->s_op = &cifs_super_ops;
+	sb->s_bdi = &cifs_sb->bdi;
 /*	if (cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512)
 	    sb->s_blocksize =
 		cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */
@@ -183,6 +191,7 @@ cifs_read_super(struct super_block *sb, void *data,
 		}
 #endif
 		unload_nls(cifs_sb->local_nls);
+		bdi_destroy(&cifs_sb->bdi);
 		kfree(cifs_sb);
 	}
 	return rc;
@@ -214,6 +223,7 @@ cifs_put_super(struct super_block *sb)
 #endif
 
 	unload_nls(cifs_sb->local_nls);
+	bdi_destroy(&cifs_sb->bdi);
 	kfree(cifs_sb);
 
 	unlock_kernel();

From 5163d90076729413cb882d3dd5c3d3cfb5b9f035 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 12:12:40 +0200
Subject: [PATCH 297/464] coda: add bdi backing to mount session

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/coda/inode.c            | 8 ++++++++
 include/linux/coda_psdev.h | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index a1695dcadd999..d97f9935a0285 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -167,6 +167,10 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
 		return -EBUSY;
 	}
 
+	error = bdi_setup_and_register(&vc->bdi, "coda", BDI_CAP_MAP_COPY);
+	if (error)
+		goto bdi_err;
+
 	vc->vc_sb = sb;
 
 	sb->s_fs_info = vc;
@@ -175,6 +179,7 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_blocksize_bits = 12;
 	sb->s_magic = CODA_SUPER_MAGIC;
 	sb->s_op = &coda_super_operations;
+	sb->s_bdi = &vc->bdi;
 
 	/* get root fid from Venus: this needs the root inode */
 	error = venus_rootfid(sb, &fid);
@@ -200,6 +205,8 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
         return 0;
 
  error:
+	bdi_destroy(&vc->bdi);
+ bdi_err:
 	if (root)
 		iput(root);
 	if (vc)
@@ -210,6 +217,7 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
 
 static void coda_put_super(struct super_block *sb)
 {
+	bdi_destroy(&coda_vcp(sb)->bdi);
 	coda_vcp(sb)->vc_sb = NULL;
 	sb->s_fs_info = NULL;
 
diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h
index 5b5d4731f9565..644062e8d857d 100644
--- a/include/linux/coda_psdev.h
+++ b/include/linux/coda_psdev.h
@@ -1,6 +1,7 @@
 #ifndef __CODA_PSDEV_H
 #define __CODA_PSDEV_H
 
+#include <linux/backing-dev.h>
 #include <linux/magic.h>
 
 #define CODA_PSDEV_MAJOR 67
@@ -17,6 +18,7 @@ struct venus_comm {
 	struct list_head    vc_processing;
 	int                 vc_inuse;
 	struct super_block *vc_sb;
+	struct backing_dev_info bdi;
 };
 
 

From 9df9c8b930156a2f9ce2b2ae66acb14bee2663f5 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 12:22:04 +0200
Subject: [PATCH 298/464] ecryptfs: add bdi backing to mount session

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/ecryptfs/ecryptfs_kernel.h |  2 ++
 fs/ecryptfs/main.c            | 10 +++++++++-
 fs/ecryptfs/super.c           |  1 +
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index bc7115403f38d..bfc2e0f78f001 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -35,6 +35,7 @@
 #include <linux/scatterlist.h>
 #include <linux/hash.h>
 #include <linux/nsproxy.h>
+#include <linux/backing-dev.h>
 
 /* Version verification for shared data structures w/ userspace */
 #define ECRYPTFS_VERSION_MAJOR 0x00
@@ -393,6 +394,7 @@ struct ecryptfs_mount_crypt_stat {
 struct ecryptfs_sb_info {
 	struct super_block *wsi_sb;
 	struct ecryptfs_mount_crypt_stat mount_crypt_stat;
+	struct backing_dev_info bdi;
 };
 
 /* file private data. */
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index af1a8f01ebacd..760983d0f25ea 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -497,17 +497,25 @@ struct kmem_cache *ecryptfs_sb_info_cache;
 static int
 ecryptfs_fill_super(struct super_block *sb, void *raw_data, int silent)
 {
+	struct ecryptfs_sb_info *esi;
 	int rc = 0;
 
 	/* Released in ecryptfs_put_super() */
 	ecryptfs_set_superblock_private(sb,
 					kmem_cache_zalloc(ecryptfs_sb_info_cache,
 							 GFP_KERNEL));
-	if (!ecryptfs_superblock_to_private(sb)) {
+	esi = ecryptfs_superblock_to_private(sb);
+	if (!esi) {
 		ecryptfs_printk(KERN_WARNING, "Out of memory\n");
 		rc = -ENOMEM;
 		goto out;
 	}
+
+	rc = bdi_setup_and_register(&esi->bdi, "ecryptfs", BDI_CAP_MAP_COPY);
+	if (rc)
+		goto out;
+
+	sb->s_bdi = &esi->bdi;
 	sb->s_op = &ecryptfs_sops;
 	/* Released through deactivate_super(sb) from get_sb_nodev */
 	sb->s_root = d_alloc(NULL, &(const struct qstr) {
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 278743c7716a4..0c0ae491d231a 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -122,6 +122,7 @@ static void ecryptfs_put_super(struct super_block *sb)
 	lock_kernel();
 
 	ecryptfs_destroy_mount_crypt_stat(&sb_info->mount_crypt_stat);
+	bdi_destroy(&sb_info->bdi);
 	kmem_cache_free(ecryptfs_sb_info_cache, sb_info);
 	ecryptfs_set_superblock_private(sb, NULL);
 

From b3d0ab7e60d1865bb6f6a79a77aaba22f2543236 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 12:26:04 +0200
Subject: [PATCH 299/464] exofs: add bdi backing to mount session

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/exofs/exofs.h | 2 ++
 fs/exofs/super.c | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h
index 8442e353309f5..54373278a353c 100644
--- a/fs/exofs/exofs.h
+++ b/fs/exofs/exofs.h
@@ -35,6 +35,7 @@
 
 #include <linux/fs.h>
 #include <linux/time.h>
+#include <linux/backing-dev.h>
 #include "common.h"
 
 /* FIXME: Remove once pnfs hits mainline
@@ -92,6 +93,7 @@ struct exofs_sb_info {
 	struct exofs_layout	layout;		/* Default files layout,
 						 * contains the variable osd_dev
 						 * array. Keep last */
+	struct backing_dev_info bdi;
 	struct osd_dev	*_min_one_dev[1];	/* Place holder for one dev   */
 };
 
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 18e57ea1e5b43..03149b9a51781 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -302,6 +302,7 @@ static void exofs_put_super(struct super_block *sb)
 	_exofs_print_device("Unmounting", NULL, sbi->layout.s_ods[0],
 			    sbi->layout.s_pid);
 
+	bdi_destroy(&sbi->bdi);
 	exofs_free_sbi(sbi);
 	sb->s_fs_info = NULL;
 }
@@ -546,6 +547,10 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!sbi)
 		return -ENOMEM;
 
+	ret = bdi_setup_and_register(&sbi->bdi, "exofs", BDI_CAP_MAP_COPY);
+	if (ret)
+		goto free_bdi;
+
 	/* use mount options to fill superblock */
 	od = osduld_path_lookup(opts->dev_name);
 	if (IS_ERR(od)) {
@@ -612,6 +617,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	/* set up operation vectors */
+	sb->s_bdi = &sbi->bdi;
 	sb->s_fs_info = sbi;
 	sb->s_op = &exofs_sops;
 	sb->s_export_op = &exofs_export_ops;
@@ -643,6 +649,8 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 
 free_sbi:
+	bdi_destroy(&sbi->bdi);
+free_bdi:
 	EXOFS_ERR("Unable to mount exofs on %s pid=0x%llx err=%d\n",
 		  opts->dev_name, sbi->layout.s_pid, ret);
 	exofs_free_sbi(sbi);

From f1970c73cbb6b884152207e4dfe90639f5029905 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 12:31:11 +0200
Subject: [PATCH 300/464] ncpfs: add bdi backing to mount session

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/ncpfs/inode.c          | 8 ++++++++
 include/linux/ncp_fs_sb.h | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index cf98da1be23e8..fa33851540234 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -526,10 +526,15 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
 	sb->s_blocksize_bits = 10;
 	sb->s_magic = NCP_SUPER_MAGIC;
 	sb->s_op = &ncp_sops;
+	sb->s_bdi = &server->bdi;
 
 	server = NCP_SBP(sb);
 	memset(server, 0, sizeof(*server));
 
+	error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY);
+	if (error)
+		goto out_bdi;
+
 	server->ncp_filp = ncp_filp;
 	server->ncp_sock = sock;
 	
@@ -719,6 +724,8 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
 	if (server->info_filp)
 		fput(server->info_filp);
 out_fput:
+	bdi_destroy(&server->bdi);
+out_bdi:
 	/* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
 	 * 
 	 * The previously used put_filp(ncp_filp); was bogous, since
@@ -756,6 +763,7 @@ static void ncp_put_super(struct super_block *sb)
 	kill_pid(server->m.wdog_pid, SIGTERM, 1);
 	put_pid(server->m.wdog_pid);
 
+	bdi_destroy(&server->bdi);
 	kfree(server->priv.data);
 	kfree(server->auth.object_name);
 	vfree(server->rxbuf);
diff --git a/include/linux/ncp_fs_sb.h b/include/linux/ncp_fs_sb.h
index 6330fc76b00fb..5ec9ca671687e 100644
--- a/include/linux/ncp_fs_sb.h
+++ b/include/linux/ncp_fs_sb.h
@@ -12,6 +12,7 @@
 #include <linux/ncp_mount.h>
 #include <linux/net.h>
 #include <linux/mutex.h>
+#include <linux/backing-dev.h>
 
 #ifdef __KERNEL__
 
@@ -127,6 +128,7 @@ struct ncp_server {
 		size_t len;
 		__u8 data[128];
 	} unexpected_packet;
+	struct backing_dev_info bdi;
 };
 
 extern void ncp_tcp_rcv_proc(struct work_struct *work);

From 424264b7b220e8eee165dc3080ae48692af73dec Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Thu, 22 Apr 2010 12:37:07 +0200
Subject: [PATCH 301/464] smbfs: add bdi backing to mount session

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/smbfs/inode.c          | 8 ++++++++
 include/linux/smb_fs_sb.h | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index 1c4c8f0899700..dfa1d67f8fca7 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -479,6 +479,7 @@ smb_put_super(struct super_block *sb)
 	if (server->conn_pid)
 		kill_pid(server->conn_pid, SIGTERM, 1);
 
+	bdi_destroy(&server->bdi);
 	kfree(server->ops);
 	smb_unload_nls(server);
 	sb->s_fs_info = NULL;
@@ -525,6 +526,11 @@ static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)
 	if (!server)
 		goto out_no_server;
 	sb->s_fs_info = server;
+	
+	if (bdi_setup_and_register(&server->bdi, "smbfs", BDI_CAP_MAP_COPY))
+		goto out_bdi;
+
+	sb->s_bdi = &server->bdi;
 
 	server->super_block = sb;
 	server->mnt = NULL;
@@ -624,6 +630,8 @@ static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)
 out_bad_option:
 	kfree(mem);
 out_no_mem:
+	bdi_destroy(&server->bdi);
+out_bdi:
 	if (!server->mnt)
 		printk(KERN_ERR "smb_fill_super: allocation failure\n");
 	sb->s_fs_info = NULL;
diff --git a/include/linux/smb_fs_sb.h b/include/linux/smb_fs_sb.h
index 8a060a7040d81..bb947dd1fba92 100644
--- a/include/linux/smb_fs_sb.h
+++ b/include/linux/smb_fs_sb.h
@@ -10,6 +10,7 @@
 #define _SMB_FS_SB
 
 #include <linux/types.h>
+#include <linux/backing-dev.h>
 #include <linux/smb.h>
 
 /*
@@ -74,6 +75,8 @@ struct smb_sb_info {
 	struct smb_ops *ops;
 
 	struct super_block *super_block;
+
+	struct backing_dev_info bdi;
 };
 
 static inline int

From b338cc8207eae46640a8d534738fda7b5e48511d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Thu, 22 Apr 2010 12:05:35 +0200
Subject: [PATCH 302/464] security: testing the wrong variable in
 create_by_name()

There is a typo here.  We should be testing "*dentry" instead of
"dentry".  If "*dentry" is an ERR_PTR, it gets dereferenced in either
mkdir() or create() which would cause an OOPs.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 security/inode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/inode.c b/security/inode.c
index c3a793881d04f..1c812e874504e 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -161,13 +161,13 @@ static int create_by_name(const char *name, mode_t mode,
 
 	mutex_lock(&parent->d_inode->i_mutex);
 	*dentry = lookup_one_len(name, parent, strlen(name));
-	if (!IS_ERR(dentry)) {
+	if (!IS_ERR(*dentry)) {
 		if ((mode & S_IFMT) == S_IFDIR)
 			error = mkdir(parent->d_inode, *dentry, mode);
 		else
 			error = create(parent->d_inode, *dentry, mode);
 	} else
-		error = PTR_ERR(dentry);
+		error = PTR_ERR(*dentry);
 	mutex_unlock(&parent->d_inode->i_mutex);
 
 	return error;

From 6de9400250f95f82da432c28b9b43823f4154c58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn=20Engel?= <joern@logfs.org>
Date: Thu, 22 Apr 2010 14:11:43 +0200
Subject: [PATCH 303/464] Fix JFFS2 sync silent failure
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

JFFS2 does not appear to set s_bdi anywhere.  And as of 32a88aa1,
__sync_filesystem() will return 0 if s_bdi is not set.  As a result,
sync_fs() is never called for jffs2 and whatever remains in the wbuf
will not make it to the device.

Fix that up by assigning the mtd bdi.

Signed-off-by: Jörn Engel <joern@logfs.org>
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 drivers/mtd/mtdsuper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index af8b42e0a55be..7c003191fca44 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -13,6 +13,7 @@
 #include <linux/mtd/super.h>
 #include <linux/namei.h>
 #include <linux/ctype.h>
+#include <linux/slab.h>
 
 /*
  * compare superblocks to see if they're equivalent
@@ -44,6 +45,7 @@ static int get_sb_mtd_set(struct super_block *sb, void *_mtd)
 
 	sb->s_mtd = mtd;
 	sb->s_dev = MKDEV(MTD_BLOCK_MAJOR, mtd->index);
+	sb->s_bdi = mtd->backing_dev_info;
 	return 0;
 }
 

From 7ac314c82f552eefebaa91c9fffe8c0d435641b9 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Thu, 22 Apr 2010 14:27:23 +0200
Subject: [PATCH 304/464] drbd: fix memory leak

We leak memory if "--dry-run" is not supported by the peer.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 drivers/block/drbd/drbd_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 67e0fc5422497..93d1f9b469d4c 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1695,6 +1695,7 @@ int drbd_send_protocol(struct drbd_conf *mdev)
 			cf |= CF_DRY_RUN;
 		else {
 			dev_err(DEV, "--dry-run is not supported by peer");
+			kfree(p);
 			return 0;
 		}
 	}

From 7e2455c1a123ceadbb35150a610d61e8443fd340 Mon Sep 17 00:00:00 2001
From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Thu, 22 Apr 2010 14:50:23 +0200
Subject: [PATCH 305/464] drbd: Terminate a connection early if sending the
 protocol fails

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 drivers/block/drbd/drbd_receiver.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index ed9f1de24a71e..3f096e7959b44 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -899,7 +899,8 @@ static int drbd_connect(struct drbd_conf *mdev)
 
 	drbd_thread_start(&mdev->asender);
 
-	drbd_send_protocol(mdev);
+	if (!drbd_send_protocol(mdev))
+		return -1;
 	drbd_send_sync_param(mdev, &mdev->sync_conf);
 	drbd_send_sizes(mdev, 0);
 	drbd_send_uuids(mdev);

From 3353541fe533350a22a03e2fb7dc085b35912575 Mon Sep 17 00:00:00 2001
From: Daniel T Chen <crimsun@ubuntu.com>
Date: Thu, 22 Apr 2010 07:15:26 -0400
Subject: [PATCH 306/464] ALSA: hda: Use ALC880_F1734 quirk for Fujitsu Siemens
 AMILO Xi 1526

BugLink: https://launchpad.net/bugs/567494

The OR has verified that the existing model quirk, ALC880_UNIWILL,
is insufficient for audible playback and capture by default. Instead,
the ALC880_F1734 model quirk needs to be used.

This change is necessary for both 2.6.32.11 and 2.6.33.2.

Reported-by: Arnaud Malpeyre <amalpeyre@gmail.com>
Tested-by: Arnaud Malpeyre <amalpeyre@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index aad1627f56f1e..7404dba16f837 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4143,7 +4143,7 @@ static struct snd_pci_quirk alc880_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x1695, 0x4012, "EPox EP-5LDA", ALC880_5ST_DIG),
 	SND_PCI_QUIRK(0x1734, 0x107c, "FSC F1734", ALC880_F1734),
 	SND_PCI_QUIRK(0x1734, 0x1094, "FSC Amilo M1451G", ALC880_FUJITSU),
-	SND_PCI_QUIRK(0x1734, 0x10ac, "FSC", ALC880_UNIWILL),
+	SND_PCI_QUIRK(0x1734, 0x10ac, "FSC AMILO Xi 1526", ALC880_F1734),
 	SND_PCI_QUIRK(0x1734, 0x10b0, "Fujitsu", ALC880_FUJITSU),
 	SND_PCI_QUIRK(0x1854, 0x0018, "LG LW20", ALC880_LG_LW),
 	SND_PCI_QUIRK(0x1854, 0x003b, "LG", ALC880_LG),

From 74a920139a0f1119c5a604cef0ce5d6f591dc782 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <randy.dunlap@oracle.com>
Date: Wed, 21 Apr 2010 14:32:47 -0700
Subject: [PATCH 307/464] staging: fix dt3155 build

When the dt3155 driver is built-in (not as a loadable module),
these build errors happen:

  drivers/staging/dt3155/dt3155_drv.c:1047: error: implicit declaration of function 'request_irq'
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_SHARED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_DISABLED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1091: error: implicit declaration of function 'free_irq'

so remove the #ifdef MODULE check since it's not needed.  Also remove
the CONFIG_PCI check since the Kconfig file already requires that.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Scott Smedley <ss@aao.gov.au>
Tested-by: Jan III Sobieski <jan3sobi3ski@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/staging/dt3155/dt3155_drv.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/dt3155/dt3155_drv.c b/drivers/staging/dt3155/dt3155_drv.c
index a67c622869d25..e2c44ec6fc458 100644
--- a/drivers/staging/dt3155/dt3155_drv.c
+++ b/drivers/staging/dt3155/dt3155_drv.c
@@ -57,19 +57,8 @@ MA 02111-1307 USA
 
 extern void printques(int);
 
-#ifdef MODULE
 #include <linux/module.h>
 #include <linux/interrupt.h>
-
-
-MODULE_LICENSE("GPL");
-
-#endif
-
-#ifndef CONFIG_PCI
-#error  "DT3155 :  Kernel PCI support not enabled (DT3155 drive requires PCI)"
-#endif
-
 #include <linux/pci.h>
 #include <linux/types.h>
 #include <linux/poll.h>
@@ -84,6 +73,9 @@ MODULE_LICENSE("GPL");
 #include "dt3155_io.h"
 #include "allocator.h"
 
+
+MODULE_LICENSE("GPL");
+
 /* Error variable.  Zero means no error. */
 int dt3155_errno = 0;
 

From 61fb06cc8e68906fb29d67bd5b6c2d50a95fc9e5 Mon Sep 17 00:00:00 2001
From: Balbir Singh <balbir@linux.vnet.ibm.com>
Date: Thu, 22 Apr 2010 12:22:34 +0930
Subject: [PATCH 308/464] virtio: Fix GFP flags passed from the virtio balloon
 driver

The virtio balloon driver can dig into the reservation pools of the OS
to satisfy a balloon request.  This is not advisable and other balloon
drivers (drivers/xen/balloon.c) avoid this as well.

The patch also adds changes to avoid printing a warning if allocation
fails, since we retry after sometime anyway.

Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: kvm <kvm@vger.kernel.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/virtio/virtio_balloon.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 3aed38886f94b..bfec7c29486df 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -103,7 +103,8 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num)
 	num = min(num, ARRAY_SIZE(vb->pfns));
 
 	for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) {
-		struct page *page = alloc_page(GFP_HIGHUSER | __GFP_NORETRY);
+		struct page *page = alloc_page(GFP_HIGHUSER | __GFP_NORETRY |
+					__GFP_NOMEMALLOC | __GFP_NOWARN);
 		if (!page) {
 			if (printk_ratelimit())
 				dev_printk(KERN_INFO, &vb->vdev->dev,

From 7efbfd1ae98ef9efe06352e2a1ad83e8c14ceeb1 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 21 Apr 2010 11:04:06 -0400
Subject: [PATCH 309/464] ALSA: snd-meastro3: Add amp_gpio quirk for Compaq EVO
 N600C

Without this quirk sound stops working after suspend resume. With this quirk,
one still needs to manually unmute the master volume control after a suspend /
/ resume cycle. That is fixed in another patch in this set.

Note that this patch was submitted to the alsa bug tracker a long time ago:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4319

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
CC: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/maestro3.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index b64e78139d632..728de232e0917 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -884,6 +884,7 @@ static DEFINE_PCI_DEVICE_TABLE(snd_m3_ids) = {
 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
 
 static struct snd_pci_quirk m3_amp_quirk_list[] __devinitdata = {
+	SND_PCI_QUIRK(0x0E11, 0x0094, "Compaq Evo N600c", 0x0c),
 	SND_PCI_QUIRK(0x10f7, 0x833e, "Panasonic CF-28", 0x0d),
 	SND_PCI_QUIRK(0x10f7, 0x833d, "Panasonic CF-72", 0x0d),
 	SND_PCI_QUIRK(0x1033, 0x80f1, "NEC LM800J/7", 0x03),

From 715aa675338ce6e1a3b4f77cf87ea611f93058a8 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 21 Apr 2010 11:04:08 -0400
Subject: [PATCH 310/464] ALSA: snd-meastro3: Ignore spurious HV interrupts
 during suspend / resume

Ignore spurious HV interrupts during suspend / resume, this avoids
mistaking them for a mute button press. This is not very pretty but
it seems the only way to fix the master volume control gets muted
after suspend issue I'm seeing. Note that the es1968 driver is doing
exactly the same.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/maestro3.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index 728de232e0917..b56e336767809 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -849,6 +849,7 @@ struct snd_m3 {
 	struct snd_kcontrol *master_switch;
 	struct snd_kcontrol *master_volume;
 	struct tasklet_struct hwvol_tq;
+	unsigned int in_suspend;
 
 #ifdef CONFIG_PM
 	u16 *suspend_mem;
@@ -1614,6 +1615,11 @@ static void snd_m3_update_hw_volume(unsigned long private_data)
 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
 
+	/* Ignore spurious HV interrupts during suspend / resume, this avoids
+	   mistaking them for a mute button press. */
+	if (chip->in_suspend)
+		return;
+
 	if (!chip->master_switch || !chip->master_volume)
 		return;
 
@@ -2425,6 +2431,7 @@ static int m3_suspend(struct pci_dev *pci, pm_message_t state)
 	if (chip->suspend_mem == NULL)
 		return 0;
 
+	chip->in_suspend = 1;
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	snd_pcm_suspend_all(chip->pcm);
 	snd_ac97_suspend(chip->ac97);
@@ -2498,6 +2505,7 @@ static int m3_resume(struct pci_dev *pci)
 	snd_m3_hv_init(chip);
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	chip->in_suspend = 0;
 	return 0;
 }
 #endif /* CONFIG_PM */

From 6a5176c474e3e722ab273d940442238e554e5e58 Mon Sep 17 00:00:00 2001
From: Stefan Haberland <stefan.haberland@de.ibm.com>
Date: Thu, 22 Apr 2010 17:17:02 +0200
Subject: [PATCH 311/464] [S390] dasd: fix endless loop in erp

If not enough memory is available to build a new erp request it ended
up in an endless loop trying to build erp requests. Fixed the loop to
proceed the next request instead.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/dasd.c          | 3 ++-
 drivers/s390/block/dasd_3990_erp.c | 7 ++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index bbea90baf98ff..acf222f91f5a9 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1899,7 +1899,8 @@ static void __dasd_process_block_ccw_queue(struct dasd_block *block,
 		/*  Process requests that may be recovered */
 		if (cqr->status == DASD_CQR_NEED_ERP) {
 			erp_fn = base->discipline->erp_action(cqr);
-			erp_fn(cqr);
+			if (IS_ERR(erp_fn(cqr)))
+				continue;
 			goto restart;
 		}
 
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index 6927e751ce3ed..6632649dd6aa4 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -2309,7 +2309,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
                                      cqr->retries);
 			dasd_block_set_timer(device->block, (HZ << 3));
                 }
-		return cqr;
+		return erp;
 	}
 
 	ccw = cqr->cpaddr;
@@ -2372,6 +2372,9 @@ dasd_3990_erp_additional_erp(struct dasd_ccw_req * cqr)
 	/* add erp and initialize with default TIC */
 	erp = dasd_3990_erp_add_erp(cqr);
 
+	if (IS_ERR(erp))
+		return erp;
+
 	/* inspect sense, determine specific ERP if possible */
 	if (erp != cqr) {
 
@@ -2711,6 +2714,8 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr)
 	if (erp == NULL) {
 		/* no matching erp found - set up erp */
 		erp = dasd_3990_erp_additional_erp(cqr);
+		if (IS_ERR(erp))
+			return erp;
 	} else {
 		/* matching erp found - set all leading erp's to DONE */
 		erp = dasd_3990_erp_handle_match_erp(cqr, erp);

From 818c272bd74b834c3ca9347c6a540c2ec880afdc Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Thu, 22 Apr 2010 17:17:03 +0200
Subject: [PATCH 312/464] [S390] cio: allow enable_facility from outside init
 functions

Prepare chsc_enable_facility to be used from outside init functions.
Use static memory for the chsc call and protect its access by a
spinlock (although there is no concurrent usage).

Cc: <stable@kernel.org>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/cio/chsc.c | 29 ++++++++++++++---------------
 drivers/s390/cio/css.c  | 11 +++--------
 2 files changed, 17 insertions(+), 23 deletions(-)

diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 4038f5b4f144e..ce7cb87479fe3 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -29,6 +29,7 @@
 #include "chsc.h"
 
 static void *sei_page;
+static DEFINE_SPINLOCK(sda_lock);
 
 /**
  * chsc_error_from_response() - convert a chsc response to an error
@@ -832,11 +833,10 @@ void __init chsc_free_sei_area(void)
 	kfree(sei_page);
 }
 
-int __init
-chsc_enable_facility(int operation_code)
+int chsc_enable_facility(int operation_code)
 {
 	int ret;
-	struct {
+	static struct {
 		struct chsc_header request;
 		u8 reserved1:4;
 		u8 format:4;
@@ -849,33 +849,32 @@ chsc_enable_facility(int operation_code)
 		u32 reserved5:4;
 		u32 format2:4;
 		u32 reserved6:24;
-	} __attribute__ ((packed)) *sda_area;
+	} __attribute__ ((packed, aligned(4096))) sda_area;
 
-	sda_area = (void *)get_zeroed_page(GFP_KERNEL|GFP_DMA);
-	if (!sda_area)
-		return -ENOMEM;
-	sda_area->request.length = 0x0400;
-	sda_area->request.code = 0x0031;
-	sda_area->operation_code = operation_code;
+	spin_lock(&sda_lock);
+	memset(&sda_area, 0, sizeof(sda_area));
+	sda_area.request.length = 0x0400;
+	sda_area.request.code = 0x0031;
+	sda_area.operation_code = operation_code;
 
-	ret = chsc(sda_area);
+	ret = chsc(&sda_area);
 	if (ret > 0) {
 		ret = (ret == 3) ? -ENODEV : -EBUSY;
 		goto out;
 	}
 
-	switch (sda_area->response.code) {
+	switch (sda_area.response.code) {
 	case 0x0101:
 		ret = -EOPNOTSUPP;
 		break;
 	default:
-		ret = chsc_error_from_response(sda_area->response.code);
+		ret = chsc_error_from_response(sda_area.response.code);
 	}
 	if (ret != 0)
 		CIO_CRW_EVENT(2, "chsc: sda (oc=%x) failed (rc=%04x)\n",
-			      operation_code, sda_area->response.code);
+			      operation_code, sda_area.response.code);
  out:
-	free_page((unsigned long)sda_area);
+	spin_unlock(&sda_lock);
 	return ret;
 }
 
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 2769da54f2b96..19635d47dede2 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -870,15 +870,10 @@ static int __init css_bus_init(void)
 
 	/* Try to enable MSS. */
 	ret = chsc_enable_facility(CHSC_SDA_OC_MSS);
-	switch (ret) {
-	case 0: /* Success. */
-		max_ssid = __MAX_SSID;
-		break;
-	case -ENOMEM:
-		goto out;
-	default:
+	if (ret)
 		max_ssid = 0;
-	}
+	else /* Success. */
+		max_ssid = __MAX_SSID;
 
 	ret = slow_subchannel_init();
 	if (ret)

From 889ee9556c89a877b8343b6bbe6ac8dc5d57e433 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Thu, 22 Apr 2010 17:17:04 +0200
Subject: [PATCH 313/464] [S390] add hook to reenable mss after hibernation

Reenable multiple subchannel sets after hibernation,
prior to the device callbacks.

Cc: <stable@kernel.org>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/swsusp_asm64.S | 3 +++
 drivers/s390/cio/css.c          | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index b354427e03b75..c56d3f56d0202 100644
--- a/arch/s390/kernel/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -256,6 +256,9 @@ restore_registers:
 	lghi	%r2,0
 	brasl	%r14,arch_set_page_states
 
+	/* Reinitialize the channel subsystem */
+	brasl	%r14,channel_subsystem_reinit
+
 	/* Return 0 */
 	lmg	%r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
 	lghi	%r2,0
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 19635d47dede2..511649115bd7e 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -1043,6 +1043,11 @@ static int __init channel_subsystem_init_sync(void)
 }
 subsys_initcall_sync(channel_subsystem_init_sync);
 
+void channel_subsystem_reinit(void)
+{
+	chsc_enable_facility(CHSC_SDA_OC_MSS);
+}
+
 #ifdef CONFIG_PROC_FS
 static ssize_t cio_settle_write(struct file *file, const char __user *buf,
 				size_t count, loff_t *ppos)

From 8821d24cd261aede9b0436cd3252b17a60ccc33a Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Thu, 22 Apr 2010 17:17:05 +0200
Subject: [PATCH 314/464] [S390] cio: use exception-save stsch

Using stsch on schids with ssid != 0 can lead to an operand
exception. Use stsch_err to handle potential exceptions
if we fail to reenable mss after hibernation.

Cc: <stable@kernel.org>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/cio/chsc_sch.c   |  2 +-
 drivers/s390/cio/cio.c        | 18 +++++++++---------
 drivers/s390/cio/device_fsm.c |  2 +-
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 404f630c27ca2..3b6f4adc50948 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -124,7 +124,7 @@ static int chsc_subchannel_prepare(struct subchannel *sch)
 	 * since we don't have a way to clear the subchannel and
 	 * cannot disable it with a request running.
 	 */
-	cc = stsch(sch->schid, &schib);
+	cc = stsch_err(sch->schid, &schib);
 	if (!cc && scsw_stctl(&schib.scsw))
 		return -EAGAIN;
 	return 0;
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index f736cdcf08ad7..5feea1a371e19 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -361,7 +361,7 @@ int cio_commit_config(struct subchannel *sch)
 	struct schib schib;
 	int ccode, retry, ret = 0;
 
-	if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib))
+	if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib))
 		return -ENODEV;
 
 	for (retry = 0; retry < 5; retry++) {
@@ -372,7 +372,7 @@ int cio_commit_config(struct subchannel *sch)
 			return ccode;
 		switch (ccode) {
 		case 0: /* successful */
-			if (stsch(sch->schid, &schib) ||
+			if (stsch_err(sch->schid, &schib) ||
 			    !css_sch_is_valid(&schib))
 				return -ENODEV;
 			if (cio_check_config(sch, &schib)) {
@@ -404,7 +404,7 @@ int cio_update_schib(struct subchannel *sch)
 {
 	struct schib schib;
 
-	if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib))
+	if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib))
 		return -ENODEV;
 
 	memcpy(&sch->schib, &schib, sizeof(schib));
@@ -771,7 +771,7 @@ cio_get_console_sch_no(void)
 	if (console_irq != -1) {
 		/* VM provided us with the irq number of the console. */
 		schid.sch_no = console_irq;
-		if (stsch(schid, &console_subchannel.schib) != 0 ||
+		if (stsch_err(schid, &console_subchannel.schib) != 0 ||
 		    (console_subchannel.schib.pmcw.st != SUBCHANNEL_TYPE_IO) ||
 		    !console_subchannel.schib.pmcw.dnv)
 			return -1;
@@ -863,10 +863,10 @@ __disable_subchannel_easy(struct subchannel_id schid, struct schib *schib)
 	cc = 0;
 	for (retry=0;retry<3;retry++) {
 		schib->pmcw.ena = 0;
-		cc = msch(schid, schib);
+		cc = msch_err(schid, schib);
 		if (cc)
 			return (cc==3?-ENODEV:-EBUSY);
-		if (stsch(schid, schib) || !css_sch_is_valid(schib))
+		if (stsch_err(schid, schib) || !css_sch_is_valid(schib))
 			return -ENODEV;
 		if (!schib->pmcw.ena)
 			return 0;
@@ -913,7 +913,7 @@ static int stsch_reset(struct subchannel_id schid, struct schib *addr)
 
 	pgm_check_occured = 0;
 	s390_base_pgm_handler_fn = cio_reset_pgm_check_handler;
-	rc = stsch(schid, addr);
+	rc = stsch_err(schid, addr);
 	s390_base_pgm_handler_fn = NULL;
 
 	/* The program check handler could have changed pgm_check_occured. */
@@ -950,7 +950,7 @@ static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data)
 			/* No default clear strategy */
 			break;
 		}
-		stsch(schid, &schib);
+		stsch_err(schid, &schib);
 		__disable_subchannel_easy(schid, &schib);
 	}
 out:
@@ -1086,7 +1086,7 @@ int __init cio_get_iplinfo(struct cio_iplinfo *iplinfo)
 	schid = *(struct subchannel_id *)&S390_lowcore.subchannel_id;
 	if (!schid.one)
 		return -ENODEV;
-	if (stsch(schid, &schib))
+	if (stsch_err(schid, &schib))
 		return -ENODEV;
 	if (schib.pmcw.st != SUBCHANNEL_TYPE_IO)
 		return -ENODEV;
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index c56ab94612f9c..c9b852647f018 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -45,7 +45,7 @@ static void ccw_timeout_log(struct ccw_device *cdev)
 	sch = to_subchannel(cdev->dev.parent);
 	private = to_io_private(sch);
 	orb = &private->orb;
-	cc = stsch(sch->schid, &schib);
+	cc = stsch_err(sch->schid, &schib);
 
 	printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
 	       "device information:\n", get_clock());

From 157a1a27d5921fc94db8c14e0d01363d13de99b5 Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Thu, 22 Apr 2010 17:17:06 +0200
Subject: [PATCH 315/464] [S390] vdso: use ntp adjusted clock multiplier

Commit "timekeeping: Fix clock_gettime vsyscall time warp" (0696b711e)
introduced the new parameter "mult" to update_vsyscall(). This parameter
contains the internal NTP adjusted clock multiplier.

The s390x vdso did not use this adjusted multiplier.  Instead, it used
the constant clock multiplier for gettimeofday() and clock_gettime()
variants.  This may result in observable time warps as explained in
commit 0696b711e.

Make the NTP adjusted clock multiplier available to the s390x vdso
implementation and use it for time calculations.

Cc: <stable@kernel.org>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/vdso.h            |  1 +
 arch/s390/kernel/asm-offsets.c          |  1 +
 arch/s390/kernel/time.c                 |  1 +
 arch/s390/kernel/vdso32/clock_gettime.S | 12 ++++++------
 arch/s390/kernel/vdso32/gettimeofday.S  |  6 +++---
 arch/s390/kernel/vdso64/clock_gettime.S |  4 ++--
 arch/s390/kernel/vdso64/gettimeofday.S  |  2 +-
 7 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
index 4a76d9480cce5..533f35751aeb9 100644
--- a/arch/s390/include/asm/vdso.h
+++ b/arch/s390/include/asm/vdso.h
@@ -29,6 +29,7 @@ struct vdso_data {
 	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x30 */
 	__u32 tz_dsttime;		/* Type of dst correction	0x34 */
 	__u32 ectg_available;
+	__u32 ntp_mult;			/* NTP adjusted multiplier	0x3C */
 };
 
 struct vdso_per_cpu_data {
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 08db736dded00..a09408952ed06 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -61,6 +61,7 @@ int main(void)
 	DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
 	DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
 	DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
+	DEFINE(__VDSO_NTP_MULT, offsetof(struct vdso_data, ntp_mult));
 	DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base));
 	DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time));
 	/* constants used by the vdso */
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index fba6dec156bf4..d906bf19c14a2 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -221,6 +221,7 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
 	vdso_data->xtime_clock_nsec = wall_time->tv_nsec;
 	vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
 	vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
+	vdso_data->ntp_mult = mult;
 	smp_wmb();
 	++vdso_data->tb_update_count;
 }
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S
index 4a98909a83100..969643954273c 100644
--- a/arch/s390/kernel/vdso32/clock_gettime.S
+++ b/arch/s390/kernel/vdso32/clock_gettime.S
@@ -38,13 +38,13 @@ __kernel_clock_gettime:
 	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
 	brc	3,2f
 	ahi	%r0,-1
-2:	mhi	%r0,1000			/* cyc2ns(clock,cycle_delta) */
+2:	ms	%r0,__VDSO_NTP_MULT(%r5)	/* cyc2ns(clock,cycle_delta) */
 	lr	%r2,%r0
-	lhi	%r0,1000
+	l	%r0,__VDSO_NTP_MULT(%r5)
 	ltr	%r1,%r1
 	mr	%r0,%r0
 	jnm	3f
-	ahi	%r0,1000
+	a	%r0,__VDSO_NTP_MULT(%r5)
 3:	alr	%r0,%r2
 	srdl	%r0,12
 	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
@@ -86,13 +86,13 @@ __kernel_clock_gettime:
 	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
 	brc	3,12f
 	ahi	%r0,-1
-12:	mhi	%r0,1000			/* cyc2ns(clock,cycle_delta) */
+12:	ms	%r0,__VDSO_NTP_MULT(%r5)	/* cyc2ns(clock,cycle_delta) */
 	lr	%r2,%r0
-	lhi	%r0,1000
+	l	%r0,__VDSO_NTP_MULT(%r5)
 	ltr	%r1,%r1
 	mr	%r0,%r0
 	jnm	13f
-	ahi	%r0,1000
+	a	%r0,__VDSO_NTP_MULT(%r5)
 13:	alr	%r0,%r2
 	srdl	%r0,12
 	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
diff --git a/arch/s390/kernel/vdso32/gettimeofday.S b/arch/s390/kernel/vdso32/gettimeofday.S
index ad8acfc949fbd..2d3633175e3be 100644
--- a/arch/s390/kernel/vdso32/gettimeofday.S
+++ b/arch/s390/kernel/vdso32/gettimeofday.S
@@ -35,13 +35,13 @@ __kernel_gettimeofday:
 	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
 	brc	3,3f
 	ahi	%r0,-1
-3:	mhi	%r0,1000			/* cyc2ns(clock,cycle_delta) */
+3:	ms	%r0,__VDSO_NTP_MULT(%r5)	/* cyc2ns(clock,cycle_delta) */
 	st	%r0,24(%r15)
-	lhi	%r0,1000
+	l	%r0,__VDSO_NTP_MULT(%r5)
 	ltr	%r1,%r1
 	mr	%r0,%r0
 	jnm	4f
-	ahi	%r0,1000
+	a	%r0,__VDSO_NTP_MULT(%r5)
 4:	al	%r0,24(%r15)
 	srdl	%r0,12
 	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S
index 49106c6e6f883..f40467884a037 100644
--- a/arch/s390/kernel/vdso64/clock_gettime.S
+++ b/arch/s390/kernel/vdso64/clock_gettime.S
@@ -36,7 +36,7 @@ __kernel_clock_gettime:
 	stck	48(%r15)			/* Store TOD clock */
 	lg	%r1,48(%r15)
 	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
-	mghi	%r1,1000
+	msgf	%r1,__VDSO_NTP_MULT(%r5)	/*  * NTP adjustment */
 	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
 	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
 	lg	%r0,__VDSO_XTIME_SEC(%r5)
@@ -64,7 +64,7 @@ __kernel_clock_gettime:
 	stck	48(%r15)			/* Store TOD clock */
 	lg	%r1,48(%r15)
 	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
-	mghi	%r1,1000
+	msgf	%r1,__VDSO_NTP_MULT(%r5)	/*  * NTP adjustment */
 	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
 	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
 	lg	%r0,__VDSO_XTIME_SEC(%r5)
diff --git a/arch/s390/kernel/vdso64/gettimeofday.S b/arch/s390/kernel/vdso64/gettimeofday.S
index f873e75634e1b..36ee674722ec3 100644
--- a/arch/s390/kernel/vdso64/gettimeofday.S
+++ b/arch/s390/kernel/vdso64/gettimeofday.S
@@ -31,7 +31,7 @@ __kernel_gettimeofday:
 	stck	48(%r15)			/* Store TOD clock */
 	lg	%r1,48(%r15)
 	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
-	mghi	%r1,1000
+	msgf	%r1,__VDSO_NTP_MULT(%r5)	/*  * NTP adjustment */
 	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
 	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime.tv_nsec */
 	lg	%r0,__VDSO_XTIME_SEC(%r5)	/* xtime.tv_sec */

From 76ef964c78797f9baed7c2f9a58f696e86d8a048 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Thu, 22 Apr 2010 17:17:07 +0200
Subject: [PATCH 316/464] [S390] zcore: Fix reipl device detection

The reipl device information is passed from the kernel to zfcpdump
using a pointer in the lowcore (0xe00) that points to the reipl
information Currently if that pointer is not zero, we copy the reipl
information. If the pointer is not initialized and points outside
the accessible memory, it can happen that the memory copy fails.
In that case we currently stop the initialization of zcore which leads
to a failing kernel dump. The correct behavior is to disable the reipl
after dump and continue with zcore intialization.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/char/zcore.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index 18daf16aa3572..7217966f7d318 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -638,11 +638,7 @@ static int __init zcore_reipl_init(void)
 		rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE);
 	else
 		rc = memcpy_real(ipl_block, (void *) ipib_info.ipib, PAGE_SIZE);
-	if (rc) {
-		free_page((unsigned long) ipl_block);
-		return rc;
-	}
-	if (csum_partial(ipl_block, ipl_block->hdr.len, 0) !=
+	if (rc || csum_partial(ipl_block, ipl_block->hdr.len, 0) !=
 	    ipib_info.checksum) {
 		TRACE("Checksum does not match\n");
 		free_page((unsigned long) ipl_block);

From 1482338f6242dbaea46039c5f1b4604a472b364b Mon Sep 17 00:00:00 2001
From: Randy Dunlap <randy.dunlap@oracle.com>
Date: Thu, 22 Apr 2010 11:02:14 -0700
Subject: [PATCH 317/464] scsi: fix operator precedence warning

Fix operator precedence warning (from sparse), which results in the
data value always being 0:

drivers/scsi/qla4xxx/ql4_mbx.c:470:66: warning: right shift by bigger than source value

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Ravi Anand <ravi.anand@qlogic.com>
Cc: David C Somayajulu <david.somayajulu@qlogic.com>
Cc: Karen Higgins <karen.higgins@qlogic.com>
Cc: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/scsi/qla4xxx/ql4_mbx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 09d6d4b76f395..caeb7d10ae045 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -467,7 +467,7 @@ int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
 	if (conn_err_detail)
 		*conn_err_detail = mbox_sts[5];
 	if (tcp_source_port_num)
-		*tcp_source_port_num = (uint16_t) mbox_sts[6] >> 16;
+		*tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
 	if (connection_id)
 		*connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
 	status = QLA_SUCCESS;

From 4c6a3999651741419cd3cc4303cf0c2be07d89bc Mon Sep 17 00:00:00 2001
From: "Valdis.Kletnieks@vt.edu" <Valdis.Kletnieks@vt.edu>
Date: Thu, 22 Apr 2010 14:29:10 -0400
Subject: [PATCH 318/464] dri-devel mailing list moved - update MAINTAINERS

I posted to dri-devel@lists.sourceforge.net, and got a bounce back:

   The dri-devel list has moved to freedesktop.org (see
   http://lists.freedesktop.org/mailman/listinfo/dri-devel). If you were
   subscribed to the list here, the subscription should have been
   transferred to the new location.

   Please only post to the new list.

Fix MAINTAINERS to correspond.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index a2d9254a2233e..183887518fe3a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1960,7 +1960,7 @@ F:	lib/kobj*
 
 DRM DRIVERS
 M:	David Airlie <airlied@linux.ie>
-L:	dri-devel@lists.sourceforge.net
+L:	dri-devel@lists.freedesktop.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
 S:	Maintained
 F:	drivers/gpu/drm/

From 20bf377e679208ba9ae0edcb8c70a8f6d33d17f9 Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Wed, 21 Apr 2010 11:39:22 -0700
Subject: [PATCH 319/464] drm/i915: cleanup FBC buffers at unload time

This keeps the memory manager from complaining when we take it down.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_dma.c | 14 ++++++++++++++
 drivers/gpu/drm/i915/i915_drv.h |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 2dc93939507d0..c3cfafcbfe7d5 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1357,6 +1357,8 @@ static void i915_setup_compression(struct drm_device *dev, int size)
 
 	dev_priv->cfb_size = size;
 
+	dev_priv->compressed_fb = compressed_fb;
+
 	if (IS_GM45(dev)) {
 		g4x_disable_fbc(dev);
 		I915_WRITE(DPFC_CB_BASE, compressed_fb->start);
@@ -1364,12 +1366,22 @@ static void i915_setup_compression(struct drm_device *dev, int size)
 		i8xx_disable_fbc(dev);
 		I915_WRITE(FBC_CFB_BASE, cfb_base);
 		I915_WRITE(FBC_LL_BASE, ll_base);
+		dev_priv->compressed_llb = compressed_llb;
 	}
 
 	DRM_DEBUG("FBC base 0x%08lx, ll base 0x%08lx, size %dM\n", cfb_base,
 		  ll_base, size >> 20);
 }
 
+static void i915_cleanup_compression(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	drm_mm_put_block(dev_priv->compressed_fb);
+	if (!IS_GM45(dev))
+		drm_mm_put_block(dev_priv->compressed_llb);
+}
+
 /* true = enable decode, false = disable decoder */
 static unsigned int i915_vga_set_decode(void *cookie, bool state)
 {
@@ -1787,6 +1799,8 @@ int i915_driver_unload(struct drm_device *dev)
 		mutex_lock(&dev->struct_mutex);
 		i915_gem_cleanup_ringbuffer(dev);
 		mutex_unlock(&dev->struct_mutex);
+		if (I915_HAS_FBC(dev) && i915_powersave)
+			i915_cleanup_compression(dev);
 		drm_mm_takedown(&dev_priv->vram);
 		i915_gem_lastclose(dev);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 051b167e60acd..ec192ddc93ec5 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -631,6 +631,9 @@ typedef struct drm_i915_private {
 	u8 max_delay;
 
 	enum no_fbc_reason no_fbc_reason;
+
+	struct drm_mm_node *compressed_fb;
+	struct drm_mm_node *compressed_llb;
 } drm_i915_private_t;
 
 /** driver private structure attached to each drm_gem_object */

From 6e3b96ed610e5a1838e62ddae9fa0c3463f235fa Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Fri, 23 Apr 2010 07:08:28 +1000
Subject: [PATCH 320/464] md/raid5: fix previous patch.

Previous patch changes stripe and chunk_number to sector_t but
mistakenly did not update all of the divisions to use sector_dev().

This patch changes all the those divisions (actually the '%' operator)
to sector_div.

Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@kernel.org
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
---
 drivers/md/raid5.c | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 20e48401910e3..58ea0ecae7c34 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1650,7 +1650,7 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 				     int previous, int *dd_idx,
 				     struct stripe_head *sh)
 {
-	sector_t stripe;
+	sector_t stripe, stripe2;
 	sector_t chunk_number;
 	unsigned int chunk_offset;
 	int pd_idx, qd_idx;
@@ -1677,7 +1677,7 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 	 */
 	stripe = chunk_number;
 	*dd_idx = sector_div(stripe, data_disks);
-
+	stripe2 = stripe;
 	/*
 	 * Select the parity disk based on the user selected algorithm.
 	 */
@@ -1689,21 +1689,21 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 	case 5:
 		switch (algorithm) {
 		case ALGORITHM_LEFT_ASYMMETRIC:
-			pd_idx = data_disks - stripe % raid_disks;
+			pd_idx = data_disks - sector_div(stripe2, raid_disks);
 			if (*dd_idx >= pd_idx)
 				(*dd_idx)++;
 			break;
 		case ALGORITHM_RIGHT_ASYMMETRIC:
-			pd_idx = stripe % raid_disks;
+			pd_idx = sector_div(stripe2, raid_disks);
 			if (*dd_idx >= pd_idx)
 				(*dd_idx)++;
 			break;
 		case ALGORITHM_LEFT_SYMMETRIC:
-			pd_idx = data_disks - stripe % raid_disks;
+			pd_idx = data_disks - sector_div(stripe2, raid_disks);
 			*dd_idx = (pd_idx + 1 + *dd_idx) % raid_disks;
 			break;
 		case ALGORITHM_RIGHT_SYMMETRIC:
-			pd_idx = stripe % raid_disks;
+			pd_idx = sector_div(stripe2, raid_disks);
 			*dd_idx = (pd_idx + 1 + *dd_idx) % raid_disks;
 			break;
 		case ALGORITHM_PARITY_0:
@@ -1723,7 +1723,7 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 
 		switch (algorithm) {
 		case ALGORITHM_LEFT_ASYMMETRIC:
-			pd_idx = raid_disks - 1 - (stripe % raid_disks);
+			pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks);
 			qd_idx = pd_idx + 1;
 			if (pd_idx == raid_disks-1) {
 				(*dd_idx)++;	/* Q D D D P */
@@ -1732,7 +1732,7 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 				(*dd_idx) += 2; /* D D P Q D */
 			break;
 		case ALGORITHM_RIGHT_ASYMMETRIC:
-			pd_idx = stripe % raid_disks;
+			pd_idx = sector_div(stripe2, raid_disks);
 			qd_idx = pd_idx + 1;
 			if (pd_idx == raid_disks-1) {
 				(*dd_idx)++;	/* Q D D D P */
@@ -1741,12 +1741,12 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 				(*dd_idx) += 2; /* D D P Q D */
 			break;
 		case ALGORITHM_LEFT_SYMMETRIC:
-			pd_idx = raid_disks - 1 - (stripe % raid_disks);
+			pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks);
 			qd_idx = (pd_idx + 1) % raid_disks;
 			*dd_idx = (pd_idx + 2 + *dd_idx) % raid_disks;
 			break;
 		case ALGORITHM_RIGHT_SYMMETRIC:
-			pd_idx = stripe % raid_disks;
+			pd_idx = sector_div(stripe2, raid_disks);
 			qd_idx = (pd_idx + 1) % raid_disks;
 			*dd_idx = (pd_idx + 2 + *dd_idx) % raid_disks;
 			break;
@@ -1765,7 +1765,7 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 			/* Exactly the same as RIGHT_ASYMMETRIC, but or
 			 * of blocks for computing Q is different.
 			 */
-			pd_idx = stripe % raid_disks;
+			pd_idx = sector_div(stripe2, raid_disks);
 			qd_idx = pd_idx + 1;
 			if (pd_idx == raid_disks-1) {
 				(*dd_idx)++;	/* Q D D D P */
@@ -1780,7 +1780,8 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 			 * D D D P Q  rather than
 			 * Q D D D P
 			 */
-			pd_idx = raid_disks - 1 - ((stripe + 1) % raid_disks);
+			stripe2 += 1;
+			pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks);
 			qd_idx = pd_idx + 1;
 			if (pd_idx == raid_disks-1) {
 				(*dd_idx)++;	/* Q D D D P */
@@ -1792,7 +1793,7 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 
 		case ALGORITHM_ROTATING_N_CONTINUE:
 			/* Same as left_symmetric but Q is before P */
-			pd_idx = raid_disks - 1 - (stripe % raid_disks);
+			pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks);
 			qd_idx = (pd_idx + raid_disks - 1) % raid_disks;
 			*dd_idx = (pd_idx + 1 + *dd_idx) % raid_disks;
 			ddf_layout = 1;
@@ -1800,27 +1801,27 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
 
 		case ALGORITHM_LEFT_ASYMMETRIC_6:
 			/* RAID5 left_asymmetric, with Q on last device */
-			pd_idx = data_disks - stripe % (raid_disks-1);
+			pd_idx = data_disks - sector_div(stripe2, raid_disks-1);
 			if (*dd_idx >= pd_idx)
 				(*dd_idx)++;
 			qd_idx = raid_disks - 1;
 			break;
 
 		case ALGORITHM_RIGHT_ASYMMETRIC_6:
-			pd_idx = stripe % (raid_disks-1);
+			pd_idx = sector_div(stripe2, raid_disks-1);
 			if (*dd_idx >= pd_idx)
 				(*dd_idx)++;
 			qd_idx = raid_disks - 1;
 			break;
 
 		case ALGORITHM_LEFT_SYMMETRIC_6:
-			pd_idx = data_disks - stripe % (raid_disks-1);
+			pd_idx = data_disks - sector_div(stripe2, raid_disks-1);
 			*dd_idx = (pd_idx + 1 + *dd_idx) % (raid_disks-1);
 			qd_idx = raid_disks - 1;
 			break;
 
 		case ALGORITHM_RIGHT_SYMMETRIC_6:
-			pd_idx = stripe % (raid_disks-1);
+			pd_idx = sector_div(stripe2, raid_disks-1);
 			*dd_idx = (pd_idx + 1 + *dd_idx) % (raid_disks-1);
 			qd_idx = raid_disks - 1;
 			break;

From e552eb7038a36d9b18860f525aa02875e313fe16 Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Wed, 21 Apr 2010 11:39:23 -0700
Subject: [PATCH 321/464] drm/i915: use PIPE_CONTROL instruction on Ironlake
 and Sandy Bridge

Since 965, the hardware has supported the PIPE_CONTROL command, which
provides fine grained GPU cache flushing control.  On recent chipsets,
this instruction is required for reliable interrupt and sequence number
reporting in the driver.

So add support for this instruction, including workarounds, on Ironlake
and Sandy Bridge hardware.

https://bugs.freedesktop.org/show_bug.cgi?id=27108

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_drv.h |   4 +
 drivers/gpu/drm/i915/i915_gem.c | 145 +++++++++++++++++++++++++++++---
 drivers/gpu/drm/i915/i915_irq.c |   8 +-
 drivers/gpu/drm/i915/i915_reg.h |  11 +++
 4 files changed, 152 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ec192ddc93ec5..6e4790065d9e0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -236,11 +236,14 @@ typedef struct drm_i915_private {
 
 	drm_dma_handle_t *status_page_dmah;
 	void *hw_status_page;
+	void *seqno_page;
 	dma_addr_t dma_status_page;
 	uint32_t counter;
 	unsigned int status_gfx_addr;
+	unsigned int seqno_gfx_addr;
 	drm_local_map_t hws_map;
 	struct drm_gem_object *hws_obj;
+	struct drm_gem_object *seqno_obj;
 	struct drm_gem_object *pwrctx;
 
 	struct resource mch_res;
@@ -1139,6 +1142,7 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 
 #define HAS_PCH_SPLIT(dev) (IS_IRONLAKE(dev) ||	\
 			    IS_GEN6(dev))
+#define HAS_PIPE_CONTROL(dev) (IS_IRONLAKE(dev) || IS_GEN6(dev))
 
 #define PRIMARY_RINGBUFFER_SIZE         (128*1024)
 
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8a8771711ceff..7f52cc124cfe3 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1588,6 +1588,13 @@ i915_gem_process_flushing_list(struct drm_device *dev,
 	}
 }
 
+#define PIPE_CONTROL_FLUSH(addr)					\
+	OUT_RING(GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE |		\
+		 PIPE_CONTROL_DEPTH_STALL);				\
+	OUT_RING(addr | PIPE_CONTROL_GLOBAL_GTT);			\
+	OUT_RING(0);							\
+	OUT_RING(0);							\
+
 /**
  * Creates a new sequence number, emitting a write of it to the status page
  * plus an interrupt, which will trigger i915_user_interrupt_handler.
@@ -1622,13 +1629,47 @@ i915_add_request(struct drm_device *dev, struct drm_file *file_priv,
 	if (dev_priv->mm.next_gem_seqno == 0)
 		dev_priv->mm.next_gem_seqno++;
 
-	BEGIN_LP_RING(4);
-	OUT_RING(MI_STORE_DWORD_INDEX);
-	OUT_RING(I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
-	OUT_RING(seqno);
+	if (HAS_PIPE_CONTROL(dev)) {
+		u32 scratch_addr = dev_priv->seqno_gfx_addr + 128;
 
-	OUT_RING(MI_USER_INTERRUPT);
-	ADVANCE_LP_RING();
+		/*
+		 * Workaround qword write incoherence by flushing the
+		 * PIPE_NOTIFY buffers out to memory before requesting
+		 * an interrupt.
+		 */
+		BEGIN_LP_RING(32);
+		OUT_RING(GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE |
+			 PIPE_CONTROL_WC_FLUSH | PIPE_CONTROL_TC_FLUSH);
+		OUT_RING(dev_priv->seqno_gfx_addr | PIPE_CONTROL_GLOBAL_GTT);
+		OUT_RING(seqno);
+		OUT_RING(0);
+		PIPE_CONTROL_FLUSH(scratch_addr);
+		scratch_addr += 128; /* write to separate cachelines */
+		PIPE_CONTROL_FLUSH(scratch_addr);
+		scratch_addr += 128;
+		PIPE_CONTROL_FLUSH(scratch_addr);
+		scratch_addr += 128;
+		PIPE_CONTROL_FLUSH(scratch_addr);
+		scratch_addr += 128;
+		PIPE_CONTROL_FLUSH(scratch_addr);
+		scratch_addr += 128;
+		PIPE_CONTROL_FLUSH(scratch_addr);
+		OUT_RING(GFX_OP_PIPE_CONTROL | PIPE_CONTROL_QW_WRITE |
+			 PIPE_CONTROL_WC_FLUSH | PIPE_CONTROL_TC_FLUSH |
+			 PIPE_CONTROL_NOTIFY);
+		OUT_RING(dev_priv->seqno_gfx_addr | PIPE_CONTROL_GLOBAL_GTT);
+		OUT_RING(seqno);
+		OUT_RING(0);
+		ADVANCE_LP_RING();
+	} else {
+		BEGIN_LP_RING(4);
+		OUT_RING(MI_STORE_DWORD_INDEX);
+		OUT_RING(I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
+		OUT_RING(seqno);
+
+		OUT_RING(MI_USER_INTERRUPT);
+		ADVANCE_LP_RING();
+	}
 
 	DRM_DEBUG_DRIVER("%d\n", seqno);
 
@@ -1752,7 +1793,10 @@ i915_get_gem_seqno(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 
-	return READ_HWSP(dev_priv, I915_GEM_HWS_INDEX);
+	if (IS_I965G(dev))
+		return ((volatile u32 *)(dev_priv->seqno_page))[0];
+	else
+		return READ_HWSP(dev_priv, I915_GEM_HWS_INDEX);
 }
 
 /**
@@ -4552,6 +4596,49 @@ i915_gem_idle(struct drm_device *dev)
 	return 0;
 }
 
+/*
+ * 965+ support PIPE_CONTROL commands, which provide finer grained control
+ * over cache flushing.
+ */
+static int
+i915_gem_init_pipe_control(struct drm_device *dev)
+{
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_gem_object *obj;
+	struct drm_i915_gem_object *obj_priv;
+	int ret;
+
+	obj = drm_gem_object_alloc(dev, 4096);
+	if (obj == NULL) {
+		DRM_ERROR("Failed to allocate seqno page\n");
+		ret = -ENOMEM;
+		goto err;
+	}
+	obj_priv = to_intel_bo(obj);
+	obj_priv->agp_type = AGP_USER_CACHED_MEMORY;
+
+	ret = i915_gem_object_pin(obj, 4096);
+	if (ret)
+		goto err_unref;
+
+	dev_priv->seqno_gfx_addr = obj_priv->gtt_offset;
+	dev_priv->seqno_page =  kmap(obj_priv->pages[0]);
+	if (dev_priv->seqno_page == NULL)
+		goto err_unpin;
+
+	dev_priv->seqno_obj = obj;
+	memset(dev_priv->seqno_page, 0, PAGE_SIZE);
+
+	return 0;
+
+err_unpin:
+	i915_gem_object_unpin(obj);
+err_unref:
+	drm_gem_object_unreference(obj);
+err:
+	return ret;
+}
+
 static int
 i915_gem_init_hws(struct drm_device *dev)
 {
@@ -4569,7 +4656,8 @@ i915_gem_init_hws(struct drm_device *dev)
 	obj = drm_gem_object_alloc(dev, 4096);
 	if (obj == NULL) {
 		DRM_ERROR("Failed to allocate status page\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err;
 	}
 	obj_priv = to_intel_bo(obj);
 	obj_priv->agp_type = AGP_USER_CACHED_MEMORY;
@@ -4577,7 +4665,7 @@ i915_gem_init_hws(struct drm_device *dev)
 	ret = i915_gem_object_pin(obj, 4096);
 	if (ret != 0) {
 		drm_gem_object_unreference(obj);
-		return ret;
+		goto err_unref;
 	}
 
 	dev_priv->status_gfx_addr = obj_priv->gtt_offset;
@@ -4586,10 +4674,16 @@ i915_gem_init_hws(struct drm_device *dev)
 	if (dev_priv->hw_status_page == NULL) {
 		DRM_ERROR("Failed to map status page.\n");
 		memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
-		i915_gem_object_unpin(obj);
-		drm_gem_object_unreference(obj);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_unpin;
 	}
+
+	if (HAS_PIPE_CONTROL(dev)) {
+		ret = i915_gem_init_pipe_control(dev);
+		if (ret)
+			goto err_unpin;
+	}
+
 	dev_priv->hws_obj = obj;
 	memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 	if (IS_GEN6(dev)) {
@@ -4602,6 +4696,30 @@ i915_gem_init_hws(struct drm_device *dev)
 	DRM_DEBUG_DRIVER("hws offset: 0x%08x\n", dev_priv->status_gfx_addr);
 
 	return 0;
+
+err_unpin:
+	i915_gem_object_unpin(obj);
+err_unref:
+	drm_gem_object_unreference(obj);
+err:
+	return 0;
+}
+
+static void
+i915_gem_cleanup_pipe_control(struct drm_device *dev)
+{
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_gem_object *obj;
+	struct drm_i915_gem_object *obj_priv;
+
+	obj = dev_priv->seqno_obj;
+	obj_priv = to_intel_bo(obj);
+	kunmap(obj_priv->pages[0]);
+	i915_gem_object_unpin(obj);
+	drm_gem_object_unreference(obj);
+	dev_priv->seqno_obj = NULL;
+
+	dev_priv->seqno_page = NULL;
 }
 
 static void
@@ -4625,6 +4743,9 @@ i915_gem_cleanup_hws(struct drm_device *dev)
 	memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
 	dev_priv->hw_status_page = NULL;
 
+	if (HAS_PIPE_CONTROL(dev))
+		i915_gem_cleanup_pipe_control(dev);
+
 	/* Write high address into HWS_PGA when disabling. */
 	I915_WRITE(HWS_PGA, 0x1ffff000);
 }
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 6421481d62222..2b8b969d0c15e 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -349,7 +349,7 @@ irqreturn_t ironlake_irq_handler(struct drm_device *dev)
 				READ_BREADCRUMB(dev_priv);
 	}
 
-	if (gt_iir & GT_USER_INTERRUPT) {
+	if (gt_iir & GT_PIPE_NOTIFY) {
 		u32 seqno = i915_get_gem_seqno(dev);
 		dev_priv->mm.irq_gem_seqno = seqno;
 		trace_i915_gem_request_complete(dev, seqno);
@@ -1005,7 +1005,7 @@ void i915_user_irq_get(struct drm_device *dev)
 	spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
 	if (dev->irq_enabled && (++dev_priv->user_irq_refcount == 1)) {
 		if (HAS_PCH_SPLIT(dev))
-			ironlake_enable_graphics_irq(dev_priv, GT_USER_INTERRUPT);
+			ironlake_enable_graphics_irq(dev_priv, GT_PIPE_NOTIFY);
 		else
 			i915_enable_irq(dev_priv, I915_USER_INTERRUPT);
 	}
@@ -1021,7 +1021,7 @@ void i915_user_irq_put(struct drm_device *dev)
 	BUG_ON(dev->irq_enabled && dev_priv->user_irq_refcount <= 0);
 	if (dev->irq_enabled && (--dev_priv->user_irq_refcount == 0)) {
 		if (HAS_PCH_SPLIT(dev))
-			ironlake_disable_graphics_irq(dev_priv, GT_USER_INTERRUPT);
+			ironlake_disable_graphics_irq(dev_priv, GT_PIPE_NOTIFY);
 		else
 			i915_disable_irq(dev_priv, I915_USER_INTERRUPT);
 	}
@@ -1305,7 +1305,7 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
 	/* enable kind of interrupts always enabled */
 	u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT |
 			   DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE;
-	u32 render_mask = GT_USER_INTERRUPT;
+	u32 render_mask = GT_PIPE_NOTIFY;
 	u32 hotplug_mask = SDE_CRT_HOTPLUG | SDE_PORTB_HOTPLUG |
 			   SDE_PORTC_HOTPLUG | SDE_PORTD_HOTPLUG;
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 773c1adb25410..4cbc5210fd300 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -230,6 +230,16 @@
 #define   ASYNC_FLIP                (1<<22)
 #define   DISPLAY_PLANE_A           (0<<20)
 #define   DISPLAY_PLANE_B           (1<<20)
+#define GFX_OP_PIPE_CONTROL	((0x3<<29)|(0x3<<27)|(0x2<<24)|2)
+#define   PIPE_CONTROL_QW_WRITE	(1<<14)
+#define   PIPE_CONTROL_DEPTH_STALL (1<<13)
+#define   PIPE_CONTROL_WC_FLUSH	(1<<12)
+#define   PIPE_CONTROL_IS_FLUSH	(1<<11) /* MBZ on Ironlake */
+#define   PIPE_CONTROL_TC_FLUSH (1<<10) /* GM45+ only */
+#define   PIPE_CONTROL_ISP_DIS	(1<<9)
+#define   PIPE_CONTROL_NOTIFY	(1<<8)
+#define   PIPE_CONTROL_GLOBAL_GTT (1<<2) /* in addr dword */
+#define   PIPE_CONTROL_STALL_EN	(1<<1) /* in addr word, Ironlake+ only */
 
 /*
  * Fence registers
@@ -2285,6 +2295,7 @@
 #define DEIER   0x4400c
 
 /* GT interrupt */
+#define GT_PIPE_NOTIFY		(1 << 4)
 #define GT_SYNC_STATUS          (1 << 2)
 #define GT_USER_INTERRUPT       (1 << 0)
 

From cdc04834ce70343aa6f87c5332ec66c35d968967 Mon Sep 17 00:00:00 2001
From: Alex Manoussakis <alex@juniper.net>
Date: Thu, 22 Apr 2010 15:18:20 -0700
Subject: [PATCH 322/464] USB: ti_usb_3410_5052: adding multitech dialup
 fax/modem devices

The following patch adds support for Multitech Systems' MT9234MU and
MT9234ZBA usb dialup fax modems. It is based on a patch and firmware
provided to me by Multitech Systems' support, after I reported to them
that my MT9234MU modem was not working with recent linux kernels.

Signed-off-by: Alex Manoussakis <alex@juniper.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/ti_usb_3410_5052.c | 26 ++++++++++++++++++++++----
 drivers/usb/serial/ti_usb_3410_5052.h |  3 +++
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 0afe5c71c17e6..880e990abb07b 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -172,7 +172,7 @@ static unsigned int product_5052_count;
 /* the array dimension is the number of default entries plus */
 /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */
 /* null entry */
-static struct usb_device_id ti_id_table_3410[10+TI_EXTRA_VID_PID_COUNT+1] = {
+static struct usb_device_id ti_id_table_3410[13+TI_EXTRA_VID_PID_COUNT+1] = {
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
@@ -180,6 +180,9 @@ static struct usb_device_id ti_id_table_3410[10+TI_EXTRA_VID_PID_COUNT+1] = {
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
 	{ USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
 	{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
 	{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
@@ -192,7 +195,7 @@ static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = {
 	{ USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
 };
 
-static struct usb_device_id ti_id_table_combined[14+2*TI_EXTRA_VID_PID_COUNT+1] = {
+static struct usb_device_id ti_id_table_combined[17+2*TI_EXTRA_VID_PID_COUNT+1] = {
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
@@ -200,6 +203,9 @@ static struct usb_device_id ti_id_table_combined[14+2*TI_EXTRA_VID_PID_COUNT+1]
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) },
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) },
 	{ USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) },
+	{ USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
 	{ USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
@@ -287,6 +293,8 @@ MODULE_FIRMWARE("ti_5052.fw");
 MODULE_FIRMWARE("mts_cdma.fw");
 MODULE_FIRMWARE("mts_gsm.fw");
 MODULE_FIRMWARE("mts_edge.fw");
+MODULE_FIRMWARE("mts_mt9234mu.fw");
+MODULE_FIRMWARE("mts_mt9234zba.fw");
 
 module_param(debug, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes");
@@ -1687,6 +1695,7 @@ static int ti_download_firmware(struct ti_device *tdev)
 	const struct firmware *fw_p;
 	char buf[32];
 
+	dbg("%s\n", __func__);
 	/* try ID specific firmware first, then try generic firmware */
 	sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor,
 	    dev->descriptor.idProduct);
@@ -1703,7 +1712,15 @@ static int ti_download_firmware(struct ti_device *tdev)
 			case MTS_EDGE_PRODUCT_ID:
 				strcpy(buf, "mts_edge.fw");
 				break;
-			}
+			case MTS_MT9234MU_PRODUCT_ID:
+				strcpy(buf, "mts_mt9234mu.fw");
+				break;
+			case MTS_MT9234ZBA_PRODUCT_ID:
+				strcpy(buf, "mts_mt9234zba.fw");
+				break;
+			case MTS_MT9234ZBAOLD_PRODUCT_ID:
+				strcpy(buf, "mts_mt9234zba.fw");
+				break;			}
 		}
 		if (buf[0] == '\0') {
 			if (tdev->td_is_3410)
@@ -1718,7 +1735,7 @@ static int ti_download_firmware(struct ti_device *tdev)
 		return -ENOENT;
 	}
 	if (fw_p->size > TI_FIRMWARE_BUF_SIZE) {
-		dev_err(&dev->dev, "%s - firmware too large\n", __func__);
+		dev_err(&dev->dev, "%s - firmware too large %d \n", __func__, fw_p->size);
 		return -ENOENT;
 	}
 
@@ -1730,6 +1747,7 @@ static int ti_download_firmware(struct ti_device *tdev)
 		status = ti_do_download(dev, pipe, buffer, fw_p->size);
 		kfree(buffer);
 	} else {
+		dbg("%s ENOMEM\n", __func__);
 		status = -ENOMEM;
 	}
 	release_firmware(fw_p);
diff --git a/drivers/usb/serial/ti_usb_3410_5052.h b/drivers/usb/serial/ti_usb_3410_5052.h
index f323c6025858f..2aac1953993b1 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.h
+++ b/drivers/usb/serial/ti_usb_3410_5052.h
@@ -45,6 +45,9 @@
 #define MTS_CDMA_PRODUCT_ID		0xF110
 #define MTS_GSM_PRODUCT_ID		0xF111
 #define MTS_EDGE_PRODUCT_ID		0xF112
+#define MTS_MT9234MU_PRODUCT_ID		0xF114
+#define MTS_MT9234ZBA_PRODUCT_ID	0xF115
+#define MTS_MT9234ZBAOLD_PRODUCT_ID	0x0319
 
 /* Commands */
 #define TI_GET_VERSION			0x01

From 4c1f5c88aaffacb2831353b6d3c1557be52071a2 Mon Sep 17 00:00:00 2001
From: Harrison Metzger <harrisonmetz@gmail.com>
Date: Tue, 9 Mar 2010 15:12:10 -0500
Subject: [PATCH 323/464] USB: fixed bug in usbsevseg using USB autosuspend
 incorrectly

This patch fixes a bug with the usbsevseg driver which assumed that USB
autosuspend will always be used.

Signed-off-by: Harrison Metzger <harrisonmetz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/misc/usbsevseg.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c
index a9555cb901a1d..de8ef945b536d 100644
--- a/drivers/usb/misc/usbsevseg.c
+++ b/drivers/usb/misc/usbsevseg.c
@@ -49,6 +49,7 @@ struct usb_sevsegdev {
 	u16 textlength;
 
 	u8 shadow_power; /* for PM */
+	u8 has_interface_pm;
 };
 
 /* sysfs_streq can't replace this completely
@@ -68,12 +69,16 @@ static void update_display_powered(struct usb_sevsegdev *mydev)
 {
 	int rc;
 
-	if (!mydev->shadow_power && mydev->powered) {
+	if (mydev->powered && !mydev->has_interface_pm) {
 		rc = usb_autopm_get_interface(mydev->intf);
 		if (rc < 0)
 			return;
+		mydev->has_interface_pm = 1;
 	}
 
+	if (mydev->shadow_power != 1)
+		return;
+
 	rc = usb_control_msg(mydev->udev,
 			usb_sndctrlpipe(mydev->udev, 0),
 			0x12,
@@ -86,8 +91,10 @@ static void update_display_powered(struct usb_sevsegdev *mydev)
 	if (rc < 0)
 		dev_dbg(&mydev->udev->dev, "power retval = %d\n", rc);
 
-	if (mydev->shadow_power && !mydev->powered)
+	if (!mydev->powered && mydev->has_interface_pm) {
 		usb_autopm_put_interface(mydev->intf);
+		mydev->has_interface_pm = 0;
+	}
 }
 
 static void update_display_mode(struct usb_sevsegdev *mydev)
@@ -351,6 +358,10 @@ static int sevseg_probe(struct usb_interface *interface,
 	mydev->intf = interface;
 	usb_set_intfdata(interface, mydev);
 
+	/* PM */
+	mydev->shadow_power = 1; /* currently active */
+	mydev->has_interface_pm = 0; /* have not issued autopm_get */
+
 	/*set defaults */
 	mydev->textmode = 0x02; /* ascii mode */
 	mydev->mode_msb = 0x06; /* 6 characters */

From 18f91196b6e7994bd694a96a6c3b0ac1f3e81d82 Mon Sep 17 00:00:00 2001
From: Ajay Kumar Gupta <ajay.gupta@ti.com>
Date: Thu, 18 Mar 2010 16:58:35 +0530
Subject: [PATCH 324/464] USB: ehci: omap: fix kernel panic with rmmod

Sets the regulator values to NULL if they are not defined. This
is required to fix the kernel panic in exit path when EHCI module
is removed on the platforms where EHCI regulator are not set.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/host/ehci-omap.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index a67a0030dd57f..40a8583350353 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -629,11 +629,13 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 		}
 		snprintf(supply, sizeof(supply), "hsusb%d", i);
 		omap->regulator[i] = regulator_get(omap->dev, supply);
-		if (IS_ERR(omap->regulator[i]))
+		if (IS_ERR(omap->regulator[i])) {
+			omap->regulator[i] = NULL;
 			dev_dbg(&pdev->dev,
 			"failed to get ehci port%d regulator\n", i);
-		else
+		} else {
 			regulator_enable(omap->regulator[i]);
+		}
 	}
 
 	ret = omap_start_ehc(omap, hcd);

From a23b64845f1ed0c090e30a70ca747a379674e006 Mon Sep 17 00:00:00 2001
From: David Vrabel <david.vrabel@csr.com>
Date: Mon, 22 Mar 2010 14:50:14 +0000
Subject: [PATCH 325/464] usb: wusb: don't overflow the Keep Alive IE buffer

The Keep Alive IE only has space for WUIE_ELT_MAX (== 4) device addresses.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/wusbcore/devconnect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c
index 46e79d3494986..7ec24e46b34be 100644
--- a/drivers/usb/wusbcore/devconnect.c
+++ b/drivers/usb/wusbcore/devconnect.c
@@ -438,7 +438,7 @@ static void __wusbhc_keep_alive(struct wusbhc *wusbhc)
 	old_keep_alives = ie->hdr.bLength - sizeof(ie->hdr);
 	keep_alives = 0;
 	for (cnt = 0;
-	     keep_alives <= WUIE_ELT_MAX && cnt < wusbhc->ports_max;
+	     keep_alives < WUIE_ELT_MAX && cnt < wusbhc->ports_max;
 	     cnt++) {
 		unsigned tt = msecs_to_jiffies(wusbhc->trust_timeout);
 

From 898f89c388534e5fe4b05b760d7f737cc352bad3 Mon Sep 17 00:00:00 2001
From: Dan Williams <dcbw@redhat.com>
Date: Tue, 23 Mar 2010 03:08:48 -0700
Subject: [PATCH 326/464] USB: qcaux: add LG Rumor and Sanyo Katana LX device
 IDs

These phones also have the familiar ttyACM0/ttyUSB0 schizophrenia when
placed into "Dial-up Networking" mode after connecting a USB cable.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/qcaux.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c
index 0b93620617138..7e3bea23600b9 100644
--- a/drivers/usb/serial/qcaux.c
+++ b/drivers/usb/serial/qcaux.c
@@ -42,6 +42,14 @@
 #define CMOTECH_PRODUCT_CDU550			0x5553
 #define CMOTECH_PRODUCT_CDX650			0x6512
 
+/* LG devices */
+#define LG_VENDOR_ID				0x1004
+#define LG_PRODUCT_VX4400_6000			0x6000 /* VX4400/VX6000/Rumor */
+
+/* Sanyo devices */
+#define SANYO_VENDOR_ID				0x0474
+#define SANYO_PRODUCT_KATANA_LX			0x0754 /* SCP-3800 (Katana LX) */
+
 static struct usb_device_id id_table[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5740, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5750, 0xff, 0x00, 0x00) },
@@ -51,6 +59,8 @@ static struct usb_device_id id_table[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_ALLTEL, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDU550, 0xff, 0xff, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDX650, 0xff, 0xff, 0x00) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(LG_VENDOR_ID, LG_PRODUCT_VX4400_6000, 0xff, 0xff, 0x00) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(SANYO_VENDOR_ID, SANYO_PRODUCT_KATANA_LX, 0xff, 0xff, 0x00) },
 	{ },
 };
 MODULE_DEVICE_TABLE(usb, id_table);

From 9600cbb24b3937dc6ebf470211d8908354ca3b0c Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Date: Fri, 26 Mar 2010 17:37:14 +0300
Subject: [PATCH 327/464] USB: OHCI: DA8xx/OMAP-L1x: fix up macro rename

It appears that the DA8xx/OMAP-L1x glue layer went into the kernel uncompilable:
commit 1960e693ac12ae5fe518309d6a63a44c93fad9e7 (davinci: da8xx/omapl1: add
support for the second sysconfig module) has renamed DA8XX_SYSCFG_* macros to
DA8XX_SYSCFG0_* and it's been committed before the glue layer...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/host/ohci-da8xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 4aa08d36d0779..d22fb4d577b77 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -23,7 +23,7 @@
 #error "This file is DA8xx bus glue.  Define CONFIG_ARCH_DAVINCI_DA8XX."
 #endif
 
-#define CFGCHIP2	DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG)
+#define CFGCHIP2	DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG)
 
 static struct clk *usb11_clk;
 static struct clk *usb20_clk;

From cfbaa39347b34837f26e01fe8f4f8dbbae60b520 Mon Sep 17 00:00:00 2001
From: William Lightning <kassah@gmail.com>
Date: Fri, 26 Mar 2010 10:51:20 -0700
Subject: [PATCH 328/464] USB: Add id for HP ev2210 a.k.a Sierra MC5725
 miniPCI-e Cell Modem.

Signed-off-by: William Lightning <kassah@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/sierra.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 9202f94505e64..ef0bdb08d7887 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -230,6 +230,7 @@ static const struct sierra_iface_info direct_ip_interface_blacklist = {
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */
 	{ USB_DEVICE(0x03F0, 0x1B1D) },	/* HP ev2200 a.k.a MC5720 */
+	{ USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */
 	{ USB_DEVICE(0x03F0, 0x1E1D) },	/* HP hs2300 a.k.a MC8775 */
 
 	{ USB_DEVICE(0x1199, 0x0017) },	/* Sierra Wireless EM5625 */

From 9a61d72602771906e11a5944e8571f8006387b39 Mon Sep 17 00:00:00 2001
From: Manuel Jander <manuel.jander@gmail.com>
Date: Mon, 29 Mar 2010 23:51:57 +0200
Subject: [PATCH 329/464] USB: pl2303: add AdLink ND-6530 USB IDs

I read a rumor that the AdLink ND6530 USB RS232, RS422 and RS485
isolated adapter is actually a PL2303 based usb serial adapter. I
tried it out, and as far as I can tell it works.

Signed-off-by: Manuel Jander <manuel.jander@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/pl2303.c | 1 +
 drivers/usb/serial/pl2303.h | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 73d5f346d3e07..c97a0bb5b6db1 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -97,6 +97,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) },
 	{ USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) },
 	{ USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) },
+	{ USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) },
 	{ }					/* Terminating entry */
 };
 
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index d640dc951568d..a352d5f3a59cb 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -134,3 +134,7 @@
 /* Sanwa KB-USB2 multimeter cable (ID: 11ad:0001) */
 #define SANWA_VENDOR_ID		0x11ad
 #define SANWA_PRODUCT_ID	0x0001
+
+/* ADLINK ND-6530 RS232,RS485 and RS422 adapter */
+#define ADLINK_VENDOR_ID        0x0b63
+#define ADLINK_ND6530_PRODUCT_ID       0x6530

From 5f677f1d45b2bf08085bbba7394392dfa586fa8e Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 2 Apr 2010 13:20:11 -0400
Subject: [PATCH 330/464] USB: fix remote wakeup settings during system sleep
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch (as1363) changes the way USB remote wakeup is handled
during system sleeps.  It won't be enabled unless an interface driver
specifically needs it.  Also, it won't be enabled during the FREEZE or
QUIESCE phases of hibernation, when the system doesn't respond to
wakeup events anyway.  Finally, if the device is already
runtime-suspended with remote wakeup enabled, but wakeup is supposed
to be disabled for the system sleep, the device gets woken up so that
it can be suspended again with the proper wakeup setting.

This will fix problems people have reported with certain USB webcams
that generate wakeup requests when they shouldn't, and as a result
cause system suspends to fail.  See

	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/515109

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Erik Andrén <erik.andren@gmail.com>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/core/driver.c | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 6a3b5cae3a6e7..64b91d6c5a5dc 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1263,13 +1263,47 @@ static int usb_resume_both(struct usb_device *udev, pm_message_t msg)
 	return status;
 }
 
+static void choose_wakeup(struct usb_device *udev, pm_message_t msg)
+{
+	int			w, i;
+	struct usb_interface	*intf;
+
+	/* Remote wakeup is needed only when we actually go to sleep.
+	 * For things like FREEZE and QUIESCE, if the device is already
+	 * autosuspended then its current wakeup setting is okay.
+	 */
+	if (msg.event == PM_EVENT_FREEZE || msg.event == PM_EVENT_QUIESCE) {
+		if (udev->state != USB_STATE_SUSPENDED)
+			udev->do_remote_wakeup = 0;
+		return;
+	}
+
+	/* If remote wakeup is permitted, see whether any interface drivers
+	 * actually want it.
+	 */
+	w = 0;
+	if (device_may_wakeup(&udev->dev) && udev->actconfig) {
+		for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
+			intf = udev->actconfig->interface[i];
+			w |= intf->needs_remote_wakeup;
+		}
+	}
+
+	/* If the device is autosuspended with the wrong wakeup setting,
+	 * autoresume now so the setting can be changed.
+	 */
+	if (udev->state == USB_STATE_SUSPENDED && w != udev->do_remote_wakeup)
+		pm_runtime_resume(&udev->dev);
+	udev->do_remote_wakeup = w;
+}
+
 /* The device lock is held by the PM core */
 int usb_suspend(struct device *dev, pm_message_t msg)
 {
 	struct usb_device	*udev = to_usb_device(dev);
 
 	do_unbind_rebind(udev, DO_UNBIND);
-	udev->do_remote_wakeup = device_may_wakeup(&udev->dev);
+	choose_wakeup(udev, msg);
 	return usb_suspend_both(udev, msg);
 }
 

From 0e5f231bc16ff9910882fa5b9d64d80e7691cfab Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Thu, 8 Apr 2010 16:56:37 -0400
Subject: [PATCH 331/464] USB: EHCI: defer reclamation of siTDs

This patch (as1369) fixes a problem in ehci-hcd.  Some controllers
occasionally run into trouble when the driver reclaims siTDs too
quickly.  This can happen while streaming audio; it causes the
controller to crash.

The patch changes siTD reclamation to work the same way as iTD
reclamation: Completed siTDs are stored on a list and not reused until
at least one frame has passed.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Nate Case <ncase@xes-inc.com>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/host/ehci-hcd.c   |  1 +
 drivers/usb/host/ehci-mem.c   |  2 +-
 drivers/usb/host/ehci-sched.c | 40 +++++++++++++++++++++++++++--------
 drivers/usb/host/ehci.h       |  5 +++--
 4 files changed, 36 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 207e7a85aeb04..13ead00aecd50 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -543,6 +543,7 @@ static int ehci_init(struct usb_hcd *hcd)
 	 */
 	ehci->periodic_size = DEFAULT_I_TDPS;
 	INIT_LIST_HEAD(&ehci->cached_itd_list);
+	INIT_LIST_HEAD(&ehci->cached_sitd_list);
 	if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0)
 		return retval;
 
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index aeda96e0af67b..1f3f01eacaf09 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -136,7 +136,7 @@ static inline void qh_put (struct ehci_qh *qh)
 
 static void ehci_mem_cleanup (struct ehci_hcd *ehci)
 {
-	free_cached_itd_list(ehci);
+	free_cached_lists(ehci);
 	if (ehci->async)
 		qh_put (ehci->async);
 	ehci->async = NULL;
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index a0aaaaff25607..805ec633a6526 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -510,7 +510,7 @@ static int disable_periodic (struct ehci_hcd *ehci)
 	ehci_writel(ehci, cmd, &ehci->regs->command);
 	/* posted write ... */
 
-	free_cached_itd_list(ehci);
+	free_cached_lists(ehci);
 
 	ehci->next_uframe = -1;
 	return 0;
@@ -2139,13 +2139,27 @@ sitd_complete (
 			(stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");
 	}
 	iso_stream_put (ehci, stream);
-	/* OK to recycle this SITD now that its completion callback ran. */
+
 done:
 	sitd->urb = NULL;
-	sitd->stream = NULL;
-	list_move(&sitd->sitd_list, &stream->free_list);
-	iso_stream_put(ehci, stream);
-
+	if (ehci->clock_frame != sitd->frame) {
+		/* OK to recycle this SITD now. */
+		sitd->stream = NULL;
+		list_move(&sitd->sitd_list, &stream->free_list);
+		iso_stream_put(ehci, stream);
+	} else {
+		/* HW might remember this SITD, so we can't recycle it yet.
+		 * Move it to a safe place until a new frame starts.
+		 */
+		list_move(&sitd->sitd_list, &ehci->cached_sitd_list);
+		if (stream->refcount == 2) {
+			/* If iso_stream_put() were called here, stream
+			 * would be freed.  Instead, just prevent reuse.
+			 */
+			stream->ep->hcpriv = NULL;
+			stream->ep = NULL;
+		}
+	}
 	return retval;
 }
 
@@ -2211,9 +2225,10 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb,
 
 /*-------------------------------------------------------------------------*/
 
-static void free_cached_itd_list(struct ehci_hcd *ehci)
+static void free_cached_lists(struct ehci_hcd *ehci)
 {
 	struct ehci_itd *itd, *n;
+	struct ehci_sitd *sitd, *sn;
 
 	list_for_each_entry_safe(itd, n, &ehci->cached_itd_list, itd_list) {
 		struct ehci_iso_stream	*stream = itd->stream;
@@ -2221,6 +2236,13 @@ static void free_cached_itd_list(struct ehci_hcd *ehci)
 		list_move(&itd->itd_list, &stream->free_list);
 		iso_stream_put(ehci, stream);
 	}
+
+	list_for_each_entry_safe(sitd, sn, &ehci->cached_sitd_list, sitd_list) {
+		struct ehci_iso_stream	*stream = sitd->stream;
+		sitd->stream = NULL;
+		list_move(&sitd->sitd_list, &stream->free_list);
+		iso_stream_put(ehci, stream);
+	}
 }
 
 /*-------------------------------------------------------------------------*/
@@ -2247,7 +2269,7 @@ scan_periodic (struct ehci_hcd *ehci)
 		clock_frame = -1;
 	}
 	if (ehci->clock_frame != clock_frame) {
-		free_cached_itd_list(ehci);
+		free_cached_lists(ehci);
 		ehci->clock_frame = clock_frame;
 	}
 	clock %= mod;
@@ -2414,7 +2436,7 @@ scan_periodic (struct ehci_hcd *ehci)
 			clock = now;
 			clock_frame = clock >> 3;
 			if (ehci->clock_frame != clock_frame) {
-				free_cached_itd_list(ehci);
+				free_cached_lists(ehci);
 				ehci->clock_frame = clock_frame;
 			}
 		} else {
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index b1dce96dd621a..556c0b48f3abd 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -87,8 +87,9 @@ struct ehci_hcd {			/* one per controller */
 	int			next_uframe;	/* scan periodic, start here */
 	unsigned		periodic_sched;	/* periodic activity count */
 
-	/* list of itds completed while clock_frame was still active */
+	/* list of itds & sitds completed while clock_frame was still active */
 	struct list_head	cached_itd_list;
+	struct list_head	cached_sitd_list;
 	unsigned		clock_frame;
 
 	/* per root hub port */
@@ -195,7 +196,7 @@ timer_action_done (struct ehci_hcd *ehci, enum ehci_timer_action action)
 	clear_bit (action, &ehci->actions);
 }
 
-static void free_cached_itd_list(struct ehci_hcd *ehci);
+static void free_cached_lists(struct ehci_hcd *ehci);
 
 /*-------------------------------------------------------------------------*/
 

From 571dc79d62a163fd043de47d7d39bae58831e81e Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 9 Apr 2010 16:03:43 -0400
Subject: [PATCH 332/464] USB: put claimed interfaces in the "suspended" state

This patch (as1370) fixes a bug in the USB runtime power management
code.  When a driver claims an interface, it doesn't expect to need to
call usb_autopm_get_interface() or usb_autopm_put_interface() for
runtime PM to work.  Runtime PM can be controlled by the driver's
primary interface; the additional interfaces it claims shouldn't
interfere.  As things stand, the claimed interfaces will prevent the
device from autosuspending.

To fix this problem, the patch sets interfaces to the suspended state
when they are claimed.

Also, although in theory this shouldn't matter, the patch changes the
suspend code so that interfaces are suspended in reverse order from
detection and resuming.  This is how the PM core works, and we ought
to use the same approach.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Debugged-and-tested-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/core/driver.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 64b91d6c5a5dc..2f3dc4cdf79bc 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -301,7 +301,7 @@ static int usb_probe_interface(struct device *dev)
 
 	intf->condition = USB_INTERFACE_BINDING;
 
-	/* Bound interfaces are initially active.  They are
+	/* Probed interfaces are initially active.  They are
 	 * runtime-PM-enabled only if the driver has autosuspend support.
 	 * They are sensitive to their children's power states.
 	 */
@@ -437,11 +437,11 @@ int usb_driver_claim_interface(struct usb_driver *driver,
 
 	iface->condition = USB_INTERFACE_BOUND;
 
-	/* Bound interfaces are initially active.  They are
+	/* Claimed interfaces are initially inactive (suspended).  They are
 	 * runtime-PM-enabled only if the driver has autosuspend support.
 	 * They are sensitive to their children's power states.
 	 */
-	pm_runtime_set_active(dev);
+	pm_runtime_set_suspended(dev);
 	pm_suspend_ignore_children(dev, false);
 	if (driver->supports_autosuspend)
 		pm_runtime_enable(dev);
@@ -1170,7 +1170,7 @@ static int usb_resume_interface(struct usb_device *udev,
 static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 {
 	int			status = 0;
-	int			i = 0;
+	int			i = 0, n = 0;
 	struct usb_interface	*intf;
 
 	if (udev->state == USB_STATE_NOTATTACHED ||
@@ -1179,7 +1179,8 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 
 	/* Suspend all the interfaces and then udev itself */
 	if (udev->actconfig) {
-		for (; i < udev->actconfig->desc.bNumInterfaces; i++) {
+		n = udev->actconfig->desc.bNumInterfaces;
+		for (i = n - 1; i >= 0; --i) {
 			intf = udev->actconfig->interface[i];
 			status = usb_suspend_interface(udev, intf, msg);
 			if (status != 0)
@@ -1192,7 +1193,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 	/* If the suspend failed, resume interfaces that did get suspended */
 	if (status != 0) {
 		msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME);
-		while (--i >= 0) {
+		while (++i < n) {
 			intf = udev->actconfig->interface[i];
 			usb_resume_interface(udev, intf, msg, 0);
 		}

From 6307e0961205c50a8a9b6e8e3e4dfd178a944ba9 Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Date: Tue, 13 Apr 2010 11:13:15 -0500
Subject: [PATCH 333/464] usb: Increase timeout value for device reset

It seems that for USB IP on Freescale MX5x processors, it needs >750
usec for the reset to complete. This change should not hurt any other
EHCI hardware.

Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/host/ehci-hub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 19372673bf09a..c7178bcde67a9 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -801,7 +801,7 @@ static int ehci_hub_control (
 			 * this bit; seems too long to spin routinely...
 			 */
 			retval = handshake(ehci, status_reg,
-					PORT_RESET, 0, 750);
+					PORT_RESET, 0, 1000);
 			if (retval != 0) {
 				ehci_err (ehci, "port %d reset error %d\n",
 					wIndex + 1, retval);

From 959fb1c5075c2dcdbe879e6dafbc59eb1e1192d6 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Thu, 1 Apr 2010 22:01:52 +0200
Subject: [PATCH 334/464] Documentation: -stable rules: upstream commit ID
 requirement reworded

It is a hard requirement to include the upstream commit ID in the
changelog of a -stable submission, not just a courtesy to the stable
team.  This concerns only mail submission though, which is no longer
the only way into stable.  (Also, fix a double "the".)

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 Documentation/stable_kernel_rules.txt | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/Documentation/stable_kernel_rules.txt b/Documentation/stable_kernel_rules.txt
index 5effa5bd993bb..e213f45cf9d75 100644
--- a/Documentation/stable_kernel_rules.txt
+++ b/Documentation/stable_kernel_rules.txt
@@ -18,16 +18,15 @@ Rules on what kind of patches are accepted, and which ones are not, into the
  - It cannot contain any "trivial" fixes in it (spelling changes,
    whitespace cleanups, etc).
  - It must follow the Documentation/SubmittingPatches rules.
- - It or an equivalent fix must already exist in Linus' tree.  Quote the
-   respective commit ID in Linus' tree in your patch submission to -stable.
+ - It or an equivalent fix must already exist in Linus' tree (upstream).
 
 
 Procedure for submitting patches to the -stable tree:
 
  - Send the patch, after verifying that it follows the above rules, to
-   stable@kernel.org.
- - To have the patch automatically included in the stable tree, add the
-   the tag
+   stable@kernel.org.  You must note the upstream commit ID in the changelog
+   of your submission.
+ - To have the patch automatically included in the stable tree, add the tag
      Cc: stable@kernel.org
    in the sign-off area. Once the patch is merged it will be applied to
    the stable tree without anything else needing to be done by the author

From e234ebf7881c013b654113f0a208977ac3ce1d01 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <randy.dunlap@oracle.com>
Date: Tue, 6 Apr 2010 16:16:59 -0700
Subject: [PATCH 335/464] Documentation/HOWTO: update git home URL

Update git home page info.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 Documentation/HOWTO | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/HOWTO b/Documentation/HOWTO
index f5395af88a41b..40ada93b820af 100644
--- a/Documentation/HOWTO
+++ b/Documentation/HOWTO
@@ -234,7 +234,7 @@ process is as follows:
     Linus, usually the patches that have already been included in the
     -next kernel for a few weeks.  The preferred way to submit big changes
     is using git (the kernel's source management tool, more information
-    can be found at http://git.or.cz/) but plain patches are also just
+    can be found at http://git-scm.com/) but plain patches are also just
     fine.
   - After two weeks a -rc1 kernel is released it is now possible to push
     only patches that do not include new features that could affect the

From a30dcb4f68fb60440f71b3e62bc5c15f631d14f9 Mon Sep 17 00:00:00 2001
From: Jiri Kosina <jkosina@suse.cz>
Date: Thu, 15 Apr 2010 02:45:25 +0200
Subject: [PATCH 336/464] sysfs: use sysfs_attr_init in ASUS atk0110 driver

Annotate dynamic sysfs attribute in atk_create_files(). This gets
rid of the following lockdep warning:

 BUG: key ffff8800379ca670 not in .data!
 ------------[ cut here ]------------
 WARNING: at kernel/lockdep.c:2696 lockdep_init_map+0xd2/0x108()
 Hardware name: P5K PRO
 Modules linked in: asus_atk0110(+) pata_acpi firewire_ohci ata_generic
 dm_multipath firewire_core crc_itu_t pata_marvell floppy
 Pid: 599, comm: modprobe Not tainted 2.6.34-rc4 #27
 Call Trace:
  [<ffffffff8104cdb0>] warn_slowpath_common+0x7c/0x94
  [<ffffffff8104cddc>] warn_slowpath_null+0x14/0x16
  [<ffffffff81077c4d>] lockdep_init_map+0xd2/0x108
  [<ffffffff81165873>] sysfs_add_file_mode+0x66/0xa2
  [<ffffffff811658c0>] sysfs_add_file+0x11/0x13
  [<ffffffff8116594b>] sysfs_create_file+0x2a/0x2c
  [<ffffffff812c1f9c>] device_create_file+0x19/0x1b
  [<ffffffffa005b4fd>] atk_add+0x58b/0x72e [asus_atk0110]
  [<ffffffff812572a1>] acpi_device_probe+0x50/0x122
  [<ffffffff812c46af>] driver_probe_device+0xa2/0x127
  [<ffffffff812c4783>] __driver_attach+0x4f/0x6b
  [<ffffffff812c4734>] ? __driver_attach+0x0/0x6b
  [<ffffffff812c3c94>] bus_for_each_dev+0x59/0x8e
  [<ffffffff812c4519>] driver_attach+0x1e/0x20
  [<ffffffff812c4152>] bus_add_driver+0xb9/0x207
  [<ffffffff812c4a5f>] driver_register+0x9d/0x10e
  [<ffffffffa005f000>] ? atk0110_init+0x0/0x31 [asus_atk0110]
  [<ffffffff81257c7c>] acpi_bus_register_driver+0x43/0x45
  [<ffffffffa005f015>] atk0110_init+0x15/0x31 [asus_atk0110]
  [<ffffffffa005f000>] ? atk0110_init+0x0/0x31 [asus_atk0110]
  [<ffffffff81002069>] do_one_initcall+0x5e/0x15e
  [<ffffffff81085075>] sys_init_module+0xd8/0x239
  [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
 ---[ end trace 4d0c84007055efb9 ]---
 BUG: key ffff8800379ca638 not in .data!
 BUG: key ffff8800379ca6a8 not in .data!
 BUG: key ffff8800379ca6e0 not in .data!
 BUG: key ffff880036f73670 not in .data!
 BUG: key ffff880036f73638 not in .data!
 BUG: key ffff880036f736a8 not in .data!
 BUG: key ffff880036f736e0 not in .data!
 BUG: key ffff880036f76c70 not in .data!
 BUG: key ffff880036f76c38 not in .data!
 BUG: key ffff880036f76ca8 not in .data!
 BUG: key ffff880036f76ce0 not in .data!
 BUG: key ffff8800368e7670 not in .data!
 BUG: key ffff8800368e7638 not in .data!
 BUG: key ffff8800368e76a8 not in .data!
 BUG: key ffff8800368e76e0 not in .data!
 BUG: key ffff880036ef7670 not in .data!
 BUG: key ffff880036ef7638 not in .data!
 BUG: key ffff880036ef76a8 not in .data!
 BUG: key ffff880036ef76e0 not in .data!
 BUG: key ffff8800373ccc70 not in .data!
 BUG: key ffff8800373ccc38 not in .data!
 BUG: key ffff8800373ccca8 not in .data!
 BUG: key ffff8800373ccce0 not in .data!
 BUG: key ffff880037a60870 not in .data!
 BUG: key ffff880037a60838 not in .data!
 BUG: key ffff880037a608a8 not in .data!
 BUG: key ffff880037a608e0 not in .data!
 BUG: key ffff880037355070 not in .data!
 BUG: key ffff880037355038 not in .data!
 BUG: key ffff8800373550a8 not in .data!
 BUG: key ffff8800373550e0 not in .data!
 BUG: key ffff8800378c2670 not in .data!
 BUG: key ffff8800378c2638 not in .data!
 BUG: key ffff8800378c26a8 not in .data!
 BUG: key ffff8800378c26e0 not in .data!
 BUG: key ffff880036ef7e70 not in .data!
 BUG: key ffff880036ef7e38 not in .data!
 BUG: key ffff880036ef7ea8 not in .data!
 BUG: key ffff880036ef7ee0 not in .data!

Cc: Eric W. Biederman <ebiederm@xmission.com>
Reported-by: Dhaval Giani <dhaval.giani@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Tested-by: Dhaval Giani <dhaval.giani@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/hwmon/asus_atk0110.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 75f3fa55663d1..16c420240724e 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -1169,15 +1169,19 @@ static int atk_create_files(struct atk_data *data)
 	int err;
 
 	list_for_each_entry(s, &data->sensor_list, list) {
+		sysfs_attr_init(&s->input_attr.attr);
 		err = device_create_file(data->hwmon_dev, &s->input_attr);
 		if (err)
 			return err;
+		sysfs_attr_init(&s->label_attr.attr);
 		err = device_create_file(data->hwmon_dev, &s->label_attr);
 		if (err)
 			return err;
+		sysfs_attr_init(&s->limit1_attr.attr);
 		err = device_create_file(data->hwmon_dev, &s->limit1_attr);
 		if (err)
 			return err;
+		sysfs_attr_init(&s->limit2_attr.attr);
 		err = device_create_file(data->hwmon_dev, &s->limit2_attr);
 		if (err)
 			return err;

From 80032cffb95edff4fc216b1cb21682257be326b7 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Wed, 21 Apr 2010 23:53:27 +0000
Subject: [PATCH 337/464] rtnetlink: potential ERR_PTR dereference

In the original code, if rtnl_create_link() returned an ERR_PTR then that
would get passed to rtnl_configure_link() which dereferences it.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/rtnetlink.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 4568120d8533f..fe776c9ddecab 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1270,10 +1270,11 @@ static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 			err = ops->newlink(net, dev, tb, data);
 		else
 			err = register_netdevice(dev);
-		if (err < 0 && !IS_ERR(dev)) {
+
+		if (err < 0 && !IS_ERR(dev))
 			free_netdev(dev);
+		if (err < 0)
 			goto out;
-		}
 
 		err = rtnl_configure_link(dev, ifm);
 		if (err < 0)

From 24acc6895616b373475e92e49925efc3ef591563 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Wed, 21 Apr 2010 23:55:27 +0000
Subject: [PATCH 338/464] rdma: potential ERR_PTR dereference

In the original code, the "goto out" calls "rdma_destroy_id(cm_id);"
That isn't needed here and would cause problems because "cm_id" is an
ERR_PTR.  The new code just returns directly.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/rds/rdma_transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c
index 9ece910ea3943..7b155081b4dc5 100644
--- a/net/rds/rdma_transport.c
+++ b/net/rds/rdma_transport.c
@@ -134,7 +134,7 @@ static int __init rds_rdma_listen_init(void)
 		ret = PTR_ERR(cm_id);
 		printk(KERN_ERR "RDS/RDMA: failed to setup listener, "
 		       "rdma_create_id() returned %d\n", ret);
-		goto out;
+		return ret;
 	}
 
 	sin.sin_family = AF_INET,

From 45aa23b4cbd37408678c96cd113241860d3321f6 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Thu, 22 Apr 2010 09:02:43 -0600
Subject: [PATCH 339/464] PCI: revert broken device warning

This reverts c519a5a7dab2d.  That change added a warning about devices that
didn't respond correctly when sizing BARs, which helped diagnose broken
devices.  But the test wasn't specific enough, so it also complained about
working devices with zero-size BARs, e.g.,
https://bugzilla.kernel.org/show_bug.cgi?id=15822

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 drivers/pci/probe.c | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 882bd8d29fe3c..c82548afcd5cb 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -174,19 +174,14 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 	pci_read_config_dword(dev, pos, &sz);
 	pci_write_config_dword(dev, pos, l);
 
-	if (!sz)
-		goto fail;	/* BAR not implemented */
-
 	/*
 	 * All bits set in sz means the device isn't working properly.
-	 * If it's a memory BAR or a ROM, bit 0 must be clear; if it's
-	 * an io BAR, bit 1 must be clear.
+	 * If the BAR isn't implemented, all bits must be 0.  If it's a
+	 * memory BAR or a ROM, bit 0 must be clear; if it's an io BAR, bit
+	 * 1 must be clear.
 	 */
-	if (sz == 0xffffffff) {
-		dev_err(&dev->dev, "reg %x: invalid size %#x; broken device?\n",
-			pos, sz);
+	if (!sz || sz == 0xffffffff)
 		goto fail;
-	}
 
 	/*
 	 * I don't know how l can have all bits set.  Copied from old code.
@@ -249,17 +244,13 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 				   pos, res);
 		}
 	} else {
-		u32 size = pci_size(l, sz, mask);
+		sz = pci_size(l, sz, mask);
 
-		if (!size) {
-			dev_err(&dev->dev, "reg %x: invalid size "
-			        "(l %#x sz %#x mask %#x); broken device?",
-				pos, l, sz, mask);
+		if (!sz)
 			goto fail;
-		}
 
 		res->start = l;
-		res->end = l + size;
+		res->end = l + sz;
 
 		dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res);
 	}

From 66528fdd45b082bf7c74687d72ae08afa4a446f8 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Tue, 20 Apr 2010 13:52:41 -0600
Subject: [PATCH 340/464] x86/PCI: parse additional host bridge window resource
 types

This adds support for Memory24, Memory32, and Memory32Fixed descriptors in
PCI host bridge _CRS.

I experimentally determined that Windows (2008 R2) accepts these descriptors
and treats them as windows that are forwarded to the PCI bus, e.g., if
it finds any PCI devices with BARs outside the windows, it moves them into
the windows.

I don't know whether any machines actually use these descriptors in PCI
host bridge _CRS methods, but if any exist and they're new enough that we
automatically turn on "pci=use_crs", they will work with Windows but not
with Linux.

Here are the details: https://bugzilla.kernel.org/show_bug.cgi?id=15817

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 arch/x86/pci/acpi.c | 43 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 37 insertions(+), 6 deletions(-)

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 334153ca4c301..44f83ce024701 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -66,13 +66,44 @@ resource_to_addr(struct acpi_resource *resource,
 			struct acpi_resource_address64 *addr)
 {
 	acpi_status status;
-
-	status = acpi_resource_to_address64(resource, addr);
-	if (ACPI_SUCCESS(status) &&
-	    (addr->resource_type == ACPI_MEMORY_RANGE ||
-	    addr->resource_type == ACPI_IO_RANGE) &&
-	    addr->address_length > 0) {
+	struct acpi_resource_memory24 *memory24;
+	struct acpi_resource_memory32 *memory32;
+	struct acpi_resource_fixed_memory32 *fixed_memory32;
+
+	memset(addr, 0, sizeof(*addr));
+	switch (resource->type) {
+	case ACPI_RESOURCE_TYPE_MEMORY24:
+		memory24 = &resource->data.memory24;
+		addr->resource_type = ACPI_MEMORY_RANGE;
+		addr->minimum = memory24->minimum;
+		addr->address_length = memory24->address_length;
+		addr->maximum = addr->minimum + addr->address_length - 1;
+		return AE_OK;
+	case ACPI_RESOURCE_TYPE_MEMORY32:
+		memory32 = &resource->data.memory32;
+		addr->resource_type = ACPI_MEMORY_RANGE;
+		addr->minimum = memory32->minimum;
+		addr->address_length = memory32->address_length;
+		addr->maximum = addr->minimum + addr->address_length - 1;
 		return AE_OK;
+	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+		fixed_memory32 = &resource->data.fixed_memory32;
+		addr->resource_type = ACPI_MEMORY_RANGE;
+		addr->minimum = fixed_memory32->address;
+		addr->address_length = fixed_memory32->address_length;
+		addr->maximum = addr->minimum + addr->address_length - 1;
+		return AE_OK;
+	case ACPI_RESOURCE_TYPE_ADDRESS16:
+	case ACPI_RESOURCE_TYPE_ADDRESS32:
+	case ACPI_RESOURCE_TYPE_ADDRESS64:
+		status = acpi_resource_to_address64(resource, addr);
+		if (ACPI_SUCCESS(status) &&
+		    (addr->resource_type == ACPI_MEMORY_RANGE ||
+		    addr->resource_type == ACPI_IO_RANGE) &&
+		    addr->address_length > 0) {
+			return AE_OK;
+		}
+		break;
 	}
 	return AE_ERROR;
 }

From cc2893b6af5265baa1d68b17b136cffca9e40cfa Mon Sep 17 00:00:00 2001
From: Matthew Garrett <mjg@redhat.com>
Date: Thu, 22 Apr 2010 09:30:51 -0400
Subject: [PATCH 341/464] PCI: Ensure we re-enable devices on resume

If the firmware puts a device back into D0 state at resume time, we'll
update its state in resume_noirq and thus skip the platform resume code.
Calling that code twice should be safe and we ought to avoid getting to
that point anyway, so remove the check and also allow the platform pci
code to be called for D0.

Fixes USB not being powered after resume on recent Lenovo machines.

Acked-by: Alex Chiang <achiang@canonical.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 drivers/pci/pci.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 5ea587e59e48c..37499127c801e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -679,7 +679,7 @@ static void __pci_start_power_transition(struct pci_dev *dev, pci_power_t state)
  */
 int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state)
 {
-	return state > PCI_D0 ?
+	return state >= PCI_D0 ?
 			pci_platform_power_transition(dev, state) : -EINVAL;
 }
 EXPORT_SYMBOL_GPL(__pci_complete_power_transition);
@@ -716,10 +716,6 @@ int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 		 */
 		return 0;
 
-	/* Check if we're already there */
-	if (dev->current_state == state)
-		return 0;
-
 	__pci_start_power_transition(dev, state);
 
 	/* This device is quirked not to be put into D3, so

From 2decb12e3ebec556520dd92178572449af8ed617 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@nokia.com>
Date: Wed, 7 Apr 2010 09:57:22 +0000
Subject: [PATCH 342/464] omap: fix clocksource_32k to start from zero

When the 32k sync timer is used for sched_clock(), it should count
time from the kernel boot (clocksource init) instead of the last HW
reset. Otherwise printk.time values will jump suddenly during the boot:

	[    0.000000] calling  omap2_clk_arch_init+0x0/0x138 @ 1
	[    0.000000] initcall omap2_clk_arch_init+0x0/0x138 returned -22 after 0 usecs
	[    0.000000] initcall omap2_clk_arch_init+0x0/0x138 returned with error code -22
	[    0.000000] calling  omap_init_clocksource_32k+0x0/0x98 @ 1
	[  508.697937] initcall omap_init_clocksource_32k+0x0/0x98 returned 0 after 0 usecs
	[  508.697967] calling  omap_init_devices+0x0/0x38 @ 1
	[  508.698425] initcall omap_init_devices+0x0/0x38 returned 0 after 0 usecs

This will confuse tools such as scripts/bootgraph.pl.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/common.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 088c1a03b9460..01cbb48442ac2 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -100,10 +100,17 @@ EXPORT_SYMBOL(omap_get_var_config);
 
 #include <linux/clocksource.h>
 
+/*
+ * offset_32k holds the init time counter value. It is then subtracted
+ * from every counter read to achieve a counter that counts time from the
+ * kernel boot (needed for sched_clock()).
+ */
+static u32 offset_32k __read_mostly;
+
 #ifdef CONFIG_ARCH_OMAP16XX
 static cycle_t omap16xx_32k_read(struct clocksource *cs)
 {
-	return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED);
+	return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED) - offset_32k;
 }
 #else
 #define omap16xx_32k_read	NULL
@@ -112,7 +119,7 @@ static cycle_t omap16xx_32k_read(struct clocksource *cs)
 #ifdef CONFIG_ARCH_OMAP2420
 static cycle_t omap2420_32k_read(struct clocksource *cs)
 {
-	return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10);
+	return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10) - offset_32k;
 }
 #else
 #define omap2420_32k_read	NULL
@@ -121,7 +128,7 @@ static cycle_t omap2420_32k_read(struct clocksource *cs)
 #ifdef CONFIG_ARCH_OMAP2430
 static cycle_t omap2430_32k_read(struct clocksource *cs)
 {
-	return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10);
+	return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10) - offset_32k;
 }
 #else
 #define omap2430_32k_read	NULL
@@ -130,7 +137,7 @@ static cycle_t omap2430_32k_read(struct clocksource *cs)
 #ifdef CONFIG_ARCH_OMAP3
 static cycle_t omap34xx_32k_read(struct clocksource *cs)
 {
-	return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10);
+	return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10) - offset_32k;
 }
 #else
 #define omap34xx_32k_read	NULL
@@ -139,7 +146,7 @@ static cycle_t omap34xx_32k_read(struct clocksource *cs)
 #ifdef CONFIG_ARCH_OMAP4
 static cycle_t omap44xx_32k_read(struct clocksource *cs)
 {
-	return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10);
+	return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10) - offset_32k;
 }
 #else
 #define omap44xx_32k_read	NULL
@@ -227,6 +234,8 @@ static int __init omap_init_clocksource_32k(void)
 		clocksource_32k.mult = clocksource_hz2mult(32768,
 					    clocksource_32k.shift);
 
+		offset_32k = clocksource_32k.read(&clocksource_32k);
+
 		if (clocksource_register(&clocksource_32k))
 			printk(err, clocksource_32k.name);
 	}

From 46cdc4e431536c279b1ce00520d6fe6e9ca42b04 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <felipe.balbi@nokia.com>
Date: Wed, 7 Apr 2010 09:57:23 +0000
Subject: [PATCH 343/464] arm: omap1: remove dead code from timer32k.c

Trivial patch, no functional changes

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap1/timer32k.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 9ad118563f7d8..20cfbcc6c60ca 100644
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -68,12 +68,6 @@ struct sys_timer omap_timer;
  * ---------------------------------------------------------------------------
  */
 
-#if defined(CONFIG_ARCH_OMAP16XX)
-#define TIMER_32K_SYNCHRONIZED		0xfffbc410
-#else
-#error OMAP 32KHz timer does not currently work on 15XX!
-#endif
-
 /* 16xx specific defines */
 #define OMAP1_32K_TIMER_BASE		0xfffb9000
 #define OMAP1_32K_TIMER_CR		0x08
@@ -150,15 +144,6 @@ static struct clock_event_device clockevent_32k_timer = {
 	.set_mode	= omap_32k_timer_set_mode,
 };
 
-/*
- * The 32KHz synchronized timer is an additional timer on 16xx.
- * It is always running.
- */
-static inline unsigned long omap_32k_sync_timer_read(void)
-{
-	return omap_readl(TIMER_32K_SYNCHRONIZED);
-}
-
 static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
 {
 	struct clock_event_device *evt = &clockevent_32k_timer;

From 29501577a7f3c925d5273064752ce3dc356ccfad Mon Sep 17 00:00:00 2001
From: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Date: Mon, 5 Apr 2010 11:38:06 +0000
Subject: [PATCH 344/464] omap: gpio: fix incorrect matching of
 IRQ_TYPE_EDGE_BOTH

Since IRQ_TYPE_EDGE_BOTH is defined as (IRQ_TYPE_EDGE_FALLING |
IRQ_TYPE_EDGE_RISING), testing against it with a bitwise AND also matches
both single-edge cases in addition to the intended both edges case. Fix it,
replacing with a more accurate expression.

Created and tested againts linux-2.6.34-rc3.
Applicable to 2.6.33-stable as well.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/gpio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 76a347b3ce072..45a225d09125c 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -798,7 +798,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
 	case METHOD_MPUIO:
 		reg += OMAP_MPUIO_GPIO_INT_EDGE;
 		l = __raw_readl(reg);
-		if (trigger & IRQ_TYPE_EDGE_BOTH)
+		if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
 			bank->toggle_mask |= 1 << gpio;
 		if (trigger & IRQ_TYPE_EDGE_RISING)
 			l |= 1 << gpio;
@@ -812,7 +812,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
 	case METHOD_GPIO_1510:
 		reg += OMAP1510_GPIO_INT_CONTROL;
 		l = __raw_readl(reg);
-		if (trigger & IRQ_TYPE_EDGE_BOTH)
+		if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
 			bank->toggle_mask |= 1 << gpio;
 		if (trigger & IRQ_TYPE_EDGE_RISING)
 			l |= 1 << gpio;
@@ -846,7 +846,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
 	case METHOD_GPIO_7XX:
 		reg += OMAP7XX_GPIO_INT_CONTROL;
 		l = __raw_readl(reg);
-		if (trigger & IRQ_TYPE_EDGE_BOTH)
+		if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
 			bank->toggle_mask |= 1 << gpio;
 		if (trigger & IRQ_TYPE_EDGE_RISING)
 			l |= 1 << gpio;

From 519e61666f4030426fc539d4e7102dc2bad41113 Mon Sep 17 00:00:00 2001
From: manjugk manjugk <manjugk@ti.com>
Date: Thu, 4 Mar 2010 07:11:56 +0000
Subject: [PATCH 345/464] omap: DMA: Init CDAC to zero

The register DMA4_CDAC needs to be initialized to zero
before starting DMA transfer.

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Govindraj R <govindraj.raja@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Reported-by:S, Venkatraman <svenkatr@ti.com>
Signed-off-by: Manjunatha GK <manjugk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/dma.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 2ab224c8e16c4..f6c9bdc95bcef 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -936,6 +936,15 @@ void omap_start_dma(int lch)
 {
 	u32 l;
 
+	/*
+	 * The CPC/CDAC register needs to be initialized to zero
+	 * before starting dma transfer.
+	 */
+	if (cpu_is_omap15xx())
+		dma_write(0, CPC(lch));
+	else
+		dma_write(0, CDAC(lch));
+
 	if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
 		int next_lch, cur_lch;
 		char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT];

From fa41efdae7de61191a7bda3a00e88ef69afb5bb9 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 15 Apr 2010 08:57:37 +0900
Subject: [PATCH 346/464] libata: fix locking around blk_abort_request()

blk_abort_request() expectes queue lock to be held by the caller.
Grab it before calling the function.

Lack of this synchronization led to infinite loop on corrupt
q->timeout_list.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/libata-eh.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 9f6cfac0f2cce..9e18cc9be0d37 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -879,6 +879,8 @@ static void ata_eh_set_pending(struct ata_port *ap, int fastdrain)
 void ata_qc_schedule_eh(struct ata_queued_cmd *qc)
 {
 	struct ata_port *ap = qc->ap;
+	struct request_queue *q = qc->scsicmd->device->request_queue;
+	unsigned long flags;
 
 	WARN_ON(!ap->ops->error_handler);
 
@@ -890,7 +892,9 @@ void ata_qc_schedule_eh(struct ata_queued_cmd *qc)
 	 * Note that ATA_QCFLAG_FAILED is unconditionally set after
 	 * this function completes.
 	 */
+	spin_lock_irqsave(q->queue_lock, flags);
 	blk_abort_request(qc->scsicmd->request);
+	spin_unlock_irqrestore(q->queue_lock, flags);
 }
 
 /**

From f25798eda66c753aeaaec15244e0c919cf1d31e0 Mon Sep 17 00:00:00 2001
From: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Date: Mon, 19 Apr 2010 19:54:11 +0200
Subject: [PATCH 347/464] pata_pcmcia/ide-cs: add IDs for transcend and
 kingston cards

This patch adds idstrings for Kingston 1GB/4GB and Transcend 4GB/8GB.

Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/pata_pcmcia.c | 4 ++++
 drivers/ide/ide-cs.c      | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index 3c3172d3c34e8..4164dd244dd0c 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -424,6 +424,8 @@ static struct pcmcia_device_id pcmcia_devices[] = {
 	PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
+	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x3e520e17),
+	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
 	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 	PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
 	PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
@@ -444,6 +446,8 @@ static struct pcmcia_device_id pcmcia_devices[] = {
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
+	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x9351e59d),
+	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
 	PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 	PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
 	PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c
index ab87e4f7cec91..defce2877eef4 100644
--- a/drivers/ide/ide-cs.c
+++ b/drivers/ide/ide-cs.c
@@ -409,6 +409,8 @@ static struct pcmcia_device_id ide_ids[] = {
 	PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
+	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x3e520e17),
+	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
 	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 	PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
 	PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
@@ -429,6 +431,8 @@ static struct pcmcia_device_id ide_ids[] = {
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
+	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x9351e59d),
+	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
 	PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 	PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
 	PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),

From 4c44f309cd396c18b096d31f03126824c685dbe2 Mon Sep 17 00:00:00 2001
From: Roman Fietze <roman.fietze@telemotive.de>
Date: Wed, 21 Apr 2010 12:17:12 +0200
Subject: [PATCH 348/464] libata: fix docs, RE port and device of libata.force
 ID separated by point

According to libata-core correctly around line 6572:

	/* parse id */
	p = strchr(id, '.');
	...

the optional device is separated from the port in the libata.force ID
by a point or dot instead of by a colon.

Fix documentation to reflect this.

Signed-off-by: Roman Fietze <roman.fietze@telemotive.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 Documentation/kernel-parameters.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e2202e93b148e..839b21b0699ac 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1194,7 +1194,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	libata.force=	[LIBATA] Force configurations.  The format is comma
 			separated list of "[ID:]VAL" where ID is
-			PORT[:DEVICE].  PORT and DEVICE are decimal numbers
+			PORT[.DEVICE].  PORT and DEVICE are decimal numbers
 			matching port, link or device.  Basically, it matches
 			the ATA ID string printed on console by libata.  If
 			the whole ID part is omitted, the last PORT and DEVICE

From 792590c72376649b4e315df386fd208b83db05b9 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@lougher.demon.co.uk>
Date: Sun, 4 Apr 2010 22:20:58 +0100
Subject: [PATCH 349/464] squashfs: fix locking bug in zlib wrapper

Fix locking bug in zlib wrapper introduced by recent decompressor changes.

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
---
 fs/squashfs/zlib_wrapper.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index 15a03d0fb9f3a..7a603874e4831 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -128,8 +128,9 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 		goto release_mutex;
 	}
 
+	length = stream->total_out;
 	mutex_unlock(&msblk->read_data_mutex);
-	return stream->total_out;
+	return length;
 
 release_mutex:
 	mutex_unlock(&msblk->read_data_mutex);

From a09bf4cd53b8ab000197ef81f15d50f29ecf973c Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Thu, 22 Apr 2010 21:59:13 -0400
Subject: [PATCH 350/464] libata: ensure NCQ error result taskfile is fully
 initialized before returning it via qc->result_tf.

Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/libata-eh.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 9e18cc9be0d37..228740f356c96 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1628,6 +1628,7 @@ void ata_eh_analyze_ncq_error(struct ata_link *link)
 	}
 
 	/* okay, this error is ours */
+	memset(&tf, 0, sizeof(tf));
 	rc = ata_eh_read_log_10h(dev, &tag, &tf);
 	if (rc) {
 		ata_link_printk(link, KERN_ERR, "failed to read log page 10h "

From fda48a0d7a8412cedacda46a9c0bf8ef9cd13559 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 21 Apr 2010 09:26:15 +0000
Subject: [PATCH 351/464] tcp: bind() fix when many ports are bound

Port autoselection done by kernel only works when number of bound
sockets is under a threshold (typically 30000).

When this threshold is over, we must check if there is a conflict before
exiting first loop in inet_csk_get_port()

Change inet_csk_bind_conflict() to forbid two reuse-enabled sockets to
bind on same (address,port) tuple (with a non ANY address)

Same change for inet6_csk_bind_conflict()

Reported-by: Gaspar Chilingarov <gasparch@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/inet_connection_sock.c  | 16 +++++++++++-----
 net/ipv6/inet6_connection_sock.c | 15 ++++++++++-----
 2 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 8da6429269ddd..14825eb09770a 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -70,13 +70,17 @@ int inet_csk_bind_conflict(const struct sock *sk,
 		    (!sk->sk_bound_dev_if ||
 		     !sk2->sk_bound_dev_if ||
 		     sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
+			const __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
+
 			if (!reuse || !sk2->sk_reuse ||
 			    sk2->sk_state == TCP_LISTEN) {
-				const __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
 				if (!sk2_rcv_saddr || !sk_rcv_saddr ||
 				    sk2_rcv_saddr == sk_rcv_saddr)
 					break;
-			}
+			} else if (reuse && sk2->sk_reuse &&
+				   sk2_rcv_saddr &&
+				   sk2_rcv_saddr == sk_rcv_saddr)
+				break;
 		}
 	}
 	return node != NULL;
@@ -120,9 +124,11 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 						smallest_size = tb->num_owners;
 						smallest_rover = rover;
 						if (atomic_read(&hashinfo->bsockets) > (high - low) + 1) {
-							spin_unlock(&head->lock);
-							snum = smallest_rover;
-							goto have_snum;
+							if (!inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb)) {
+								spin_unlock(&head->lock);
+								snum = smallest_rover;
+								goto have_snum;
+							}
 						}
 					}
 					goto next;
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 628db24bcf22b..b4b7d40a9c95a 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -42,11 +42,16 @@ int inet6_csk_bind_conflict(const struct sock *sk,
 		if (sk != sk2 &&
 		    (!sk->sk_bound_dev_if ||
 		     !sk2->sk_bound_dev_if ||
-		     sk->sk_bound_dev_if == sk2->sk_bound_dev_if) &&
-		    (!sk->sk_reuse || !sk2->sk_reuse ||
-		     sk2->sk_state == TCP_LISTEN) &&
-		     ipv6_rcv_saddr_equal(sk, sk2))
-			break;
+		     sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
+			if ((!sk->sk_reuse || !sk2->sk_reuse ||
+			     sk2->sk_state == TCP_LISTEN) &&
+			     ipv6_rcv_saddr_equal(sk, sk2))
+				break;
+			else if (sk->sk_reuse && sk2->sk_reuse &&
+				!ipv6_addr_any(inet6_rcv_saddr(sk2)) &&
+				ipv6_rcv_saddr_equal(sk, sk2))
+				break;
+		}
 	}
 
 	return node != NULL;

From 677d07683ea826c19ddcb156e9c1337cd7bd8539 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Thu, 22 Apr 2010 22:58:50 -0400
Subject: [PATCH 352/464] drm/radeon/kms/evergreen: fix LUT setup

Must have gotten broken during an earlier rebase.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_display.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index b8d6728282468..bb1c122cad21b 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -86,12 +86,12 @@ static void evergreen_crtc_load_lut(struct drm_crtc *crtc)
 	WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
 	WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
 
-	WREG32(EVERGREEN_DC_LUT_RW_MODE, radeon_crtc->crtc_id);
-	WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK, 0x00000007);
+	WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0);
+	WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007);
 
-	WREG32(EVERGREEN_DC_LUT_RW_INDEX, 0);
+	WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0);
 	for (i = 0; i < 256; i++) {
-		WREG32(EVERGREEN_DC_LUT_30_COLOR,
+		WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset,
 		       (radeon_crtc->lut_r[i] << 20) |
 		       (radeon_crtc->lut_g[i] << 10) |
 		       (radeon_crtc->lut_b[i] << 0));

From 9c950a43dd4d1e22a4b893c991871bac26930f97 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Fri, 23 Apr 2010 13:21:58 +1000
Subject: [PATCH 353/464] drm/radeon/kms: don't print error for legal crtcs.

With evergreen this is bounded by num_crtc not by 0,1.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_kms.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 20ec276e7596c..8d1ad20fa5c1d 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -164,7 +164,7 @@ u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
 {
 	struct radeon_device *rdev = dev->dev_private;
 
-	if (crtc < 0 || crtc > 1) {
+	if (crtc < 0 || crtc >= rdev->num_crtc) {
 		DRM_ERROR("Invalid crtc %d\n", crtc);
 		return -EINVAL;
 	}
@@ -176,7 +176,7 @@ int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
 {
 	struct radeon_device *rdev = dev->dev_private;
 
-	if (crtc < 0 || crtc > 1) {
+	if (crtc < 0 || crtc >= rdev->num_crtc) {
 		DRM_ERROR("Invalid crtc %d\n", crtc);
 		return -EINVAL;
 	}
@@ -190,7 +190,7 @@ void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 {
 	struct radeon_device *rdev = dev->dev_private;
 
-	if (crtc < 0 || crtc > 1) {
+	if (crtc < 0 || crtc >= rdev->num_crtc) {
 		DRM_ERROR("Invalid crtc %d\n", crtc);
 		return;
 	}

From 94f7bf647315472c80b8368c849739038e5620a3 Mon Sep 17 00:00:00 2001
From: Tormod Volden <debian.tormod@gmail.com>
Date: Thu, 22 Apr 2010 16:57:32 -0400
Subject: [PATCH 354/464] drm/radeon: 9800 SE has only one quadpipe

Although these cards have 2 pipelines on the silicon only
the first passed the QA and the other should be disabled.

http://www.digital-daily.com/video/ati-radeon9800se/
http://www.rojakpot.com/showarticle.aspx?artno=101&pgno=1

agd5f: add some other SE cards as well; fix up kms

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r300.c      | 5 ++---
 drivers/gpu/drm/radeon/r420.c      | 6 ++++++
 drivers/gpu/drm/radeon/radeon_cp.c | 9 +++++++--
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 2a9b59457556f..6ec86fc2f4740 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -323,13 +323,12 @@ void r300_gpu_init(struct radeon_device *rdev)
 	uint32_t gb_tile_config, tmp;
 
 	r100_hdp_reset(rdev);
-	/* FIXME: rv380 one pipes ? */
 	if ((rdev->family == CHIP_R300 && rdev->pdev->device != 0x4144) ||
-	    (rdev->family == CHIP_R350)) {
+	    (rdev->family == CHIP_R350 && rdev->pdev->device != 0x4148)) {
 		/* r300,r350 */
 		rdev->num_gb_pipes = 2;
 	} else {
-		/* rv350,rv370,rv380,r300 AD */
+		/* rv350,rv370,rv380,r300 AD, r350 AH */
 		rdev->num_gb_pipes = 1;
 	}
 	rdev->num_z_pipes = 1;
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 0b8603ca6974f..100af6570b093 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -58,6 +58,12 @@ void r420_pipes_init(struct radeon_device *rdev)
 	/* get max number of pipes */
 	gb_pipe_select = RREG32(0x402C);
 	num_pipes = ((gb_pipe_select >> 12) & 3) + 1;
+
+	/* SE chips have 1 pipe */
+	if ((rdev->pdev->device == 0x5e4c) ||
+	    (rdev->pdev->device == 0x5e4f))
+		num_pipes = 1;
+
 	rdev->num_gb_pipes = num_pipes;
 	tmp = 0;
 	switch (num_pipes) {
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index 419630dd20755..2f042a3c0e62b 100644
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -435,14 +435,19 @@ static void radeon_init_pipes(struct drm_device *dev)
 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R420) {
 		gb_pipe_sel = RADEON_READ(R400_GB_PIPE_SELECT);
 		dev_priv->num_gb_pipes = ((gb_pipe_sel >> 12) & 0x3) + 1;
+		/* SE cards have 1 pipe */
+		if ((dev->pdev->device == 0x5e4c) ||
+		    (dev->pdev->device == 0x5e4f))
+			dev_priv->num_gb_pipes = 1;
 	} else {
 		/* R3xx */
 		if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300 &&
 		     dev->pdev->device != 0x4144) ||
-		    ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350)) {
+		    ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350 &&
+		     dev->pdev->device != 0x4148)) {
 			dev_priv->num_gb_pipes = 2;
 		} else {
-			/* RV3xx/R300 AD */
+			/* RV3xx/R300 AD/R350 AH */
 			dev_priv->num_gb_pipes = 1;
 		}
 	}

From 0e0280dc2b0c7395a880d25544b47f3e3e3f79db Mon Sep 17 00:00:00 2001
From: Daniel T Chen <crimsun@ubuntu.com>
Date: Wed, 21 Apr 2010 19:55:43 -0400
Subject: [PATCH 355/464] ALSA: hda: Use LPIB quirk for DG965OT board version
 AAD63733-203

BugLink: https://launchpad.net/bugs/459083

The OR has verified with 2.6.32.11 and the latest alsa-driver stable
daily snapshot that position_fix=1 is necessary for the external mic
to work and for PulseAudio not to crash constantly.

This patch is necessary also for 2.6.32.11 and 2.6.33.2.

Reported-by: <imwithid@yahoo.com>
Tested-by: <imwithid@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index f669442b7c829..cec68152dcb1b 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2273,6 +2273,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = {
 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1565, 0x820f, "Biostar Microtech", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x8086, 0xd601, "eMachines T5212", POS_FIX_LPIB),
 	{}
 };

From 5c1bccf645d4ab65e4c7502acb42e8b9afdb5bdc Mon Sep 17 00:00:00 2001
From: Daniel T Chen <crimsun@ubuntu.com>
Date: Thu, 22 Apr 2010 17:54:45 -0400
Subject: [PATCH 356/464] ALSA: hda: Use STAC_DELL_M6_BOTH quirk for Dell
 Studio 1558

BugLink: https://launchpad.net/bugs/568600

The OR has verified that the dell-m6 model quirk is necessary for audio
to be audible by default on the Dell Studio XPS 1645.

This change is necessary for 2.6.32.11 and 2.6.33.2 alike.

Reported-by: Andy Ross <andy@plausible.org>
Tested-by: Andy Ross <andy@plausible.org>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_sigmatel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 81ecd9388a80d..7fb7d017a347b 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -1609,6 +1609,8 @@ static struct snd_pci_quirk stac92hd73xx_cfg_tbl[] = {
 				"Dell Studio 1557", STAC_DELL_M6_DMIC),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x02fe,
 				"Dell Studio XPS 1645", STAC_DELL_M6_BOTH),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0413,
+				"Dell Studio 1558", STAC_DELL_M6_BOTH),
 	{} /* terminator */
 };
 

From c6f8505e4627ba8ca46cbcb602ad82e7f17a7122 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Fri, 23 Apr 2010 02:26:55 -0400
Subject: [PATCH 357/464] drm/radeon/kms/evergreen: No EnableYUV table

DCE4 cards don't have an EnableYUV table.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_encoders.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 30293bec08013..fed7b8084779e 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1326,7 +1326,7 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 
 	radeon_encoder->pixel_clock = adjusted_mode->clock;
 
-	if (ASIC_IS_AVIVO(rdev)) {
+	if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE4(rdev)) {
 		if (radeon_encoder->active_device & (ATOM_DEVICE_CV_SUPPORT | ATOM_DEVICE_TV_SUPPORT))
 			atombios_yuv_setup(encoder, true);
 		else

From 1918ad77f7f908ed67cf37c505c6ad4ac52f1ecf Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Fri, 23 Apr 2010 09:32:23 -0700
Subject: [PATCH 358/464] drm/i915: fix non-Ironlake 965 class crashes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

My PIPE_CONTROL fix (just sent via Eric's tree) was buggy; I was
testing a whole set of patches together and missed a conversion to the
new HAS_PIPE_CONTROL macro, which will cause breakage on non-Ironlake
965 class chips.  Fortunately, the fix is trivial and has been tested.

Be sure to use the HAS_PIPE_CONTROL macro in i915_get_gem_seqno, or
we'll end up reading the wrong graphics memory, likely causing hangs,
crashes, or worse.

Reported-by: Zdenek Kabelac <zdenek.kabelac@gmail.com>
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Tested-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/gpu/drm/i915/i915_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 7f52cc124cfe3..ef3d91dda71a9 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1793,7 +1793,7 @@ i915_get_gem_seqno(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 
-	if (IS_I965G(dev))
+	if (HAS_PIPE_CONTROL(dev))
 		return ((volatile u32 *)(dev_priv->seqno_page))[0];
 	else
 		return READ_HWSP(dev_priv, I915_GEM_HWS_INDEX);

From 3a3076f4d6e2fa31338a0b007df42a3b32f079e0 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@redhat.com>
Date: Fri, 23 Apr 2010 12:17:17 -0400
Subject: [PATCH 359/464] Cleanup generic block based fiemap

This cleans up a few of the complaints of __generic_block_fiemap.  I've
fixed all the typing stuff, used inline functions instead of macros,
gotten rid of a couple of variables, and made sure the size and block
requests are all block aligned.  It also fixes a problem where sometimes
FIEMAP_EXTENT_LAST wasn't being set properly.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ioctl.c         | 92 ++++++++++++++++++++++++++--------------------
 include/linux/fs.h |  5 ++-
 2 files changed, 56 insertions(+), 41 deletions(-)

diff --git a/fs/ioctl.c b/fs/ioctl.c
index 6c751106c2e56..7faefb4da9391 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -228,14 +228,23 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
 
 #ifdef CONFIG_BLOCK
 
-#define blk_to_logical(inode, blk) (blk << (inode)->i_blkbits)
-#define logical_to_blk(inode, offset) (offset >> (inode)->i_blkbits);
+static inline sector_t logical_to_blk(struct inode *inode, loff_t offset)
+{
+	return (offset >> inode->i_blkbits);
+}
+
+static inline loff_t blk_to_logical(struct inode *inode, sector_t blk)
+{
+	return (blk << inode->i_blkbits);
+}
 
 /**
  * __generic_block_fiemap - FIEMAP for block based inodes (no locking)
- * @inode - the inode to map
- * @arg - the pointer to userspace where we copy everything to
- * @get_block - the fs's get_block function
+ * @inode: the inode to map
+ * @fieinfo: the fiemap info struct that will be passed back to userspace
+ * @start: where to start mapping in the inode
+ * @len: how much space to map
+ * @get_block: the fs's get_block function
  *
  * This does FIEMAP for block based inodes.  Basically it will just loop
  * through get_block until we hit the number of extents we want to map, or we
@@ -250,58 +259,63 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
  */
 
 int __generic_block_fiemap(struct inode *inode,
-			   struct fiemap_extent_info *fieinfo, u64 start,
-			   u64 len, get_block_t *get_block)
+			   struct fiemap_extent_info *fieinfo, loff_t start,
+			   loff_t len, get_block_t *get_block)
 {
-	struct buffer_head tmp;
-	unsigned long long start_blk;
-	long long length = 0, map_len = 0;
+	struct buffer_head map_bh;
+	sector_t start_blk, last_blk;
+	loff_t isize = i_size_read(inode);
 	u64 logical = 0, phys = 0, size = 0;
 	u32 flags = FIEMAP_EXTENT_MERGED;
-	int ret = 0, past_eof = 0, whole_file = 0;
+	bool past_eof = false, whole_file = false;
+	int ret = 0;
 
-	if ((ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC)))
+	ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
+	if (ret)
 		return ret;
 
-	start_blk = logical_to_blk(inode, start);
-
-	length = (long long)min_t(u64, len, i_size_read(inode));
-	if (length < len)
-		whole_file = 1;
+	/*
+	 * Either the i_mutex or other appropriate locking needs to be held
+	 * since we expect isize to not change at all through the duration of
+	 * this call.
+	 */
+	if (len >= isize) {
+		whole_file = true;
+		len = isize;
+	}
 
-	map_len = length;
+	start_blk = logical_to_blk(inode, start);
+	last_blk = logical_to_blk(inode, start + len - 1);
 
 	do {
 		/*
 		 * we set b_size to the total size we want so it will map as
 		 * many contiguous blocks as possible at once
 		 */
-		memset(&tmp, 0, sizeof(struct buffer_head));
-		tmp.b_size = map_len;
+		memset(&map_bh, 0, sizeof(struct buffer_head));
+		map_bh.b_size = len;
 
-		ret = get_block(inode, start_blk, &tmp, 0);
+		ret = get_block(inode, start_blk, &map_bh, 0);
 		if (ret)
 			break;
 
 		/* HOLE */
-		if (!buffer_mapped(&tmp)) {
-			length -= blk_to_logical(inode, 1);
+		if (!buffer_mapped(&map_bh)) {
 			start_blk++;
 
 			/*
-			 * we want to handle the case where there is an
+			 * We want to handle the case where there is an
 			 * allocated block at the front of the file, and then
 			 * nothing but holes up to the end of the file properly,
 			 * to make sure that extent at the front gets properly
 			 * marked with FIEMAP_EXTENT_LAST
 			 */
 			if (!past_eof &&
-			    blk_to_logical(inode, start_blk) >=
-			    blk_to_logical(inode, 0)+i_size_read(inode))
+			    blk_to_logical(inode, start_blk) >= isize)
 				past_eof = 1;
 
 			/*
-			 * first hole after going past the EOF, this is our
+			 * First hole after going past the EOF, this is our
 			 * last extent
 			 */
 			if (past_eof && size) {
@@ -309,15 +323,18 @@ int __generic_block_fiemap(struct inode *inode,
 				ret = fiemap_fill_next_extent(fieinfo, logical,
 							      phys, size,
 							      flags);
-				break;
+			} else if (size) {
+				ret = fiemap_fill_next_extent(fieinfo, logical,
+							      phys, size, flags);
+				size = 0;
 			}
 
 			/* if we have holes up to/past EOF then we're done */
-			if (length <= 0 || past_eof)
+			if (start_blk > last_blk || past_eof || ret)
 				break;
 		} else {
 			/*
-			 * we have gone over the length of what we wanted to
+			 * We have gone over the length of what we wanted to
 			 * map, and it wasn't the entire file, so add the extent
 			 * we got last time and exit.
 			 *
@@ -331,7 +348,7 @@ int __generic_block_fiemap(struct inode *inode,
 			 * are good to go, just add the extent to the fieinfo
 			 * and break
 			 */
-			if (length <= 0 && !whole_file) {
+			if (start_blk > last_blk && !whole_file) {
 				ret = fiemap_fill_next_extent(fieinfo, logical,
 							      phys, size,
 							      flags);
@@ -351,11 +368,10 @@ int __generic_block_fiemap(struct inode *inode,
 			}
 
 			logical = blk_to_logical(inode, start_blk);
-			phys = blk_to_logical(inode, tmp.b_blocknr);
-			size = tmp.b_size;
+			phys = blk_to_logical(inode, map_bh.b_blocknr);
+			size = map_bh.b_size;
 			flags = FIEMAP_EXTENT_MERGED;
 
-			length -= tmp.b_size;
 			start_blk += logical_to_blk(inode, size);
 
 			/*
@@ -363,15 +379,13 @@ int __generic_block_fiemap(struct inode *inode,
 			 * soon as we find a hole that the last extent we found
 			 * is marked with FIEMAP_EXTENT_LAST
 			 */
-			if (!past_eof &&
-			    logical+size >=
-			    blk_to_logical(inode, 0)+i_size_read(inode))
-				past_eof = 1;
+			if (!past_eof && logical + size >= isize)
+				past_eof = true;
 		}
 		cond_resched();
 	} while (1);
 
-	/* if ret is 1 then we just hit the end of the extent array */
+	/* If ret is 1 then we just hit the end of the extent array */
 	if (ret == 1)
 		ret = 0;
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 39d57bc6cc717..44f35aea2f1fe 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2315,8 +2315,9 @@ extern int vfs_fstatat(int , char __user *, struct kstat *, int);
 extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
 		    unsigned long arg);
 extern int __generic_block_fiemap(struct inode *inode,
-				  struct fiemap_extent_info *fieinfo, u64 start,
-				  u64 len, get_block_t *get_block);
+				  struct fiemap_extent_info *fieinfo,
+				  loff_t start, loff_t len,
+				  get_block_t *get_block);
 extern int generic_block_fiemap(struct inode *inode,
 				struct fiemap_extent_info *fieinfo, u64 start,
 				u64 len, get_block_t *get_block);

From c9db3efee16add57ea459a00dfa00610fcbce931 Mon Sep 17 00:00:00 2001
From: Corentin Chary <corentincj@iksaif.net>
Date: Sat, 10 Apr 2010 11:02:51 +0200
Subject: [PATCH 360/464] eeepc-laptop: add missing sparse_keymap_free

Also remove legacy keymap which was not used since
we use sparse_keymap.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
---
 drivers/platform/x86/eeepc-laptop.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 54a015785ca8b..0306174ba8758 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -169,7 +169,6 @@ struct eeepc_laptop {
 	struct backlight_device *backlight_device;
 
 	struct input_dev *inputdev;
-	struct key_entry *keymap;
 
 	struct rfkill *wlan_rfkill;
 	struct rfkill *bluetooth_rfkill;
@@ -1204,8 +1203,8 @@ static int eeepc_input_init(struct eeepc_laptop *eeepc)
 static void eeepc_input_exit(struct eeepc_laptop *eeepc)
 {
 	if (eeepc->inputdev) {
+		sparse_keymap_free(eeepc->inputdev);
 		input_unregister_device(eeepc->inputdev);
-		kfree(eeepc->keymap);
 	}
 }
 

From df571c4ab32da9bc05a7db98516fc06ef3cdc5d1 Mon Sep 17 00:00:00 2001
From: Richard Woodruff <r-woodruff2@ti.com>
Date: Wed, 7 Apr 2010 07:47:21 +0000
Subject: [PATCH 361/464] omap4: Fix build break when used with gcc-4.4.1
 (2009-q3)

This patch adds  argument to smc calls as gcc-4.4.1 requires it
otherwise the build breaks with 2009-q3 toolchanin.

arch/arm/mach-omap2/omap-headsmp.S: Assembler messages:
arch/arm/mach-omap2/omap-headsmp.S:36: Error: missing expression -- `smc'
arch/arm/mach-omap2/omap-headsmp.S:55: Error: missing expression -- `smc'
arch/arm/mach-omap2/omap-headsmp.S:63: Error: missing expression -- `smc'
make[1]: *** [arch/arm/mach-omap2/omap-headsmp.o] Error 1

Signed-off-by: Richard Woodruff <r-woodruff2@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap-headsmp.S | 6 +++---
 arch/arm/mach-omap2/omap44xx-smc.S | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S
index aa3f65c2ac973..ef0e7a00dd6c6 100644
--- a/arch/arm/mach-omap2/omap-headsmp.S
+++ b/arch/arm/mach-omap2/omap-headsmp.S
@@ -33,7 +33,7 @@
 ENTRY(omap_secondary_startup)
 hold:	ldr	r12,=0x103
 	dsb
-	smc				@ read from AuxCoreBoot0
+	smc	#0			@ read from AuxCoreBoot0
 	mov	r0, r0, lsr #9
 	mrc	p15, 0, r4, c0, c0, 5
 	and	r4, r4, #0x0f
@@ -52,7 +52,7 @@ ENTRY(omap_modify_auxcoreboot0)
 	stmfd   sp!, {r1-r12, lr}
 	ldr	r12, =0x104
 	dsb
-	smc
+	smc	#0
 	ldmfd   sp!, {r1-r12, pc}
 END(omap_modify_auxcoreboot0)
 
@@ -60,6 +60,6 @@ ENTRY(omap_auxcoreboot_addr)
 	stmfd   sp!, {r2-r12, lr}
 	ldr	r12, =0x105
 	dsb
-	smc
+	smc	#0
 	ldmfd   sp!, {r2-r12, pc}
 END(omap_auxcoreboot_addr)
diff --git a/arch/arm/mach-omap2/omap44xx-smc.S b/arch/arm/mach-omap2/omap44xx-smc.S
index 89bb2b141473d..f61c7771ca47e 100644
--- a/arch/arm/mach-omap2/omap44xx-smc.S
+++ b/arch/arm/mach-omap2/omap44xx-smc.S
@@ -27,6 +27,6 @@ ENTRY(omap_smc1)
 	mov	r12, r0
 	mov 	r0, r1
 	dsb
-	smc
+	smc	#0
 	ldmfd   sp!, {r2-r12, pc}
 END(omap_smc1)

From 67d24820c2f8e4df26e2ce6c7463db3f9d187f1f Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 21 Apr 2010 15:27:25 -0700
Subject: [PATCH 362/464] omap2: Fix ARM processor check for 24xx

The value to check is 7 for V6 instead. The code has been
working as it falls through to 24xx code if the other checks
fail.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/include/mach/entry-macro.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/include/mach/entry-macro.S b/arch/arm/mach-omap2/include/mach/entry-macro.S
index ff25c7e4e6062..50fd749166433 100644
--- a/arch/arm/mach-omap2/include/mach/entry-macro.S
+++ b/arch/arm/mach-omap2/include/mach/entry-macro.S
@@ -52,7 +52,7 @@ omap_irq_base:	.word	0
 
 		mrc	p15, 0, \tmp, c0, c0, 0	@ get processor revision
 		and	\tmp, \tmp, #0x000f0000	@ only check architecture
-		cmp	\tmp, #0x00060000	@ is v6?
+		cmp	\tmp, #0x00070000	@ is v6?
 		beq	2400f			@ found v6 so it's omap24xx
 		mrc	p15, 0, \tmp, c0, c0, 0	@ get processor revision
 		and	\tmp, \tmp, #0x000000f0	@ check cortex 8 or 9

From 1dea5c6b5876ea917a082e95a76c10aac307d4ec Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 21 Apr 2010 15:27:24 -0700
Subject: [PATCH 363/464] omap: Fix n8x0 mmc_mmc_init compile warnings and
 typos

Fix warning: 'return' with a value, in function returning void
in n8x0_mmc_init. Also fix a search and replace typo.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-n8x0.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index da9bcb8989911..3ccc34ebdcc79 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -216,7 +216,7 @@ static void __init n8x0_onenand_init(void) {}
  */
 #define N8X0_SLOT_SWITCH_GPIO	96
 #define N810_EMMC_VSD_GPIO	23
-#define NN810_EMMC_VIO_GPIO	9
+#define N810_EMMC_VIO_GPIO	9
 
 static int n8x0_mmc_switch_slot(struct device *dev, int slot)
 {
@@ -304,10 +304,10 @@ static void n810_set_power_emmc(struct device *dev,
 	if (power_on) {
 		gpio_set_value(N810_EMMC_VSD_GPIO, 1);
 		msleep(1);
-		gpio_set_value(NN810_EMMC_VIO_GPIO, 1);
+		gpio_set_value(N810_EMMC_VIO_GPIO, 1);
 		msleep(1);
 	} else {
-		gpio_set_value(NN810_EMMC_VIO_GPIO, 0);
+		gpio_set_value(N810_EMMC_VIO_GPIO, 0);
 		msleep(50);
 		gpio_set_value(N810_EMMC_VSD_GPIO, 0);
 		msleep(50);
@@ -468,7 +468,7 @@ static void n8x0_mmc_cleanup(struct device *dev)
 
 	if (machine_is_nokia_n810()) {
 		gpio_free(N810_EMMC_VSD_GPIO);
-		gpio_free(NN810_EMMC_VIO_GPIO);
+		gpio_free(N810_EMMC_VIO_GPIO);
 	}
 }
 
@@ -529,7 +529,7 @@ void __init n8x0_mmc_init(void)
 
 	err = gpio_request(N8X0_SLOT_SWITCH_GPIO, "MMC slot switch");
 	if (err)
-		return err;
+		return;
 
 	gpio_direction_output(N8X0_SLOT_SWITCH_GPIO, 0);
 
@@ -537,17 +537,17 @@ void __init n8x0_mmc_init(void)
 		err = gpio_request(N810_EMMC_VSD_GPIO, "MMC slot 2 Vddf");
 		if (err) {
 			gpio_free(N8X0_SLOT_SWITCH_GPIO);
-			return err;
+			return;
 		}
 		gpio_direction_output(N810_EMMC_VSD_GPIO, 0);
 
-		err = gpio_request(NN810_EMMC_VIO_GPIO, "MMC slot 2 Vdd");
+		err = gpio_request(N810_EMMC_VIO_GPIO, "MMC slot 2 Vdd");
 		if (err) {
 			gpio_free(N8X0_SLOT_SWITCH_GPIO);
 			gpio_free(N810_EMMC_VSD_GPIO);
-			return err;
+			return;
 		}
-		gpio_direction_output(NN810_EMMC_VIO_GPIO, 0);
+		gpio_direction_output(N810_EMMC_VIO_GPIO, 0);
 	}
 
 	mmc_data[0] = &mmc1_data;

From f6b74535b5286ddb7a8c86a48ec372615cffbc4c Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Date: Mon, 1 Mar 2010 15:02:36 +0000
Subject: [PATCH 364/464] omap3: Fix EHCI port for IGEP v2 board

IGEP v2 uses EHCI port 1 instead of EHCI port 2.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-igep0020.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 3c7789d450515..d55c57b761a98 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -458,13 +458,13 @@ static struct omap_musb_board_data musb_board_data = {
 };
 
 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
-	.port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
-	.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
+	.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
+	.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 
 	.phy_reset = true,
-	.reset_gpio_port[0] = -EINVAL,
-	.reset_gpio_port[1] = IGEP2_GPIO_USBH_NRESET,
+	.reset_gpio_port[0] = IGEP2_GPIO_USBH_NRESET,
+	.reset_gpio_port[1] = -EINVAL,
 	.reset_gpio_port[2] = -EINVAL,
 };
 

From 9df76b7f179538903dfb4660ae27c807dd27535a Mon Sep 17 00:00:00 2001
From: kishore kadiyala <kishore.kadiyala@ti.com>
Date: Wed, 21 Apr 2010 18:19:37 +0000
Subject: [PATCH 365/464] OMAP4-HSMMC: FIX for MMC5 Controller IRQ Base

This patch fixes HSMMC Controller5 IRQ Base.

Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/devices.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 23e4d7733610c..2271b9bd1f509 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -726,7 +726,7 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
 			if (!cpu_is_omap44xx())
 				return;
 			base = OMAP4_MMC5_BASE + OMAP4_MMC_REG_OFFSET;
-			irq = OMAP44XX_IRQ_MMC4;
+			irq = OMAP44XX_IRQ_MMC5;
 			break;
 		default:
 			continue;

From 3655e0b415506a4d162ed4b2b12408c80dcfa4a2 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 21 Apr 2010 18:21:04 +0000
Subject: [PATCH 366/464] OMAP4: Fix for CONTROL register Base

This patch fixes the base address of CONTROL register on OMAP4430SDP.
The control base is used by peripherals like MMC1 for PBIAS configuration.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/include/plat/omap44xx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/plat-omap/include/plat/omap44xx.h b/arch/arm/plat-omap/include/plat/omap44xx.h
index 2302474a37489..b3ef1a7f53cc8 100644
--- a/arch/arm/plat-omap/include/plat/omap44xx.h
+++ b/arch/arm/plat-omap/include/plat/omap44xx.h
@@ -32,7 +32,7 @@
 #define OMAP4430_PRM_BASE		0x4a306000
 #define OMAP44XX_GPMC_BASE		0x50000000
 #define OMAP443X_SCM_BASE		0x4a002000
-#define OMAP443X_CTRL_BASE		OMAP443X_SCM_BASE
+#define OMAP443X_CTRL_BASE		0x4a100000
 #define OMAP44XX_IC_BASE		0x48200000
 #define OMAP44XX_IVA_INTC_BASE		0x40000000
 #define IRQ_SIR_IRQ			0x0040

From 2135bb53fb6c9a4b2ed7901b2b176a6100e29f6b Mon Sep 17 00:00:00 2001
From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Mar 2010 12:52:16 +0000
Subject: [PATCH 367/464] omap: Devkit8000: Fix wrong usb port on Devkit8000

Disable the nonexistent ehci port on Devkit8000.

Signed-off-by: Thomas Weber <weber@corscience.de>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-devkit8000.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index 5bfc13b3176c9..db4c093e2afbe 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -639,12 +639,12 @@ static struct omap_musb_board_data musb_board_data = {
 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 
 	.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
-	.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
+	.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 
 	.phy_reset  = true,
 	.reset_gpio_port[0]  = -EINVAL,
-	.reset_gpio_port[1]  = 147,
+	.reset_gpio_port[1]  = -EINVAL,
 	.reset_gpio_port[2]  = -EINVAL
 };
 

From c8334810db6e74019048cb3fc17c5e0b4d0c8c68 Mon Sep 17 00:00:00 2001
From: Abraham Arce <x0066660@ti.com>
Date: Thu, 22 Apr 2010 14:42:15 +0000
Subject: [PATCH 368/464] OMAP4: Clocks: Change SPI Instance Names

Change the name for the spi instances on omap44xx_clks to match
the names omap2 spi driver gives:

omap-mcspi.1 -> omap2_mcspi.1
omap-mcspi.2 -> omap2_mcspi.2
omap-mcspi.3 -> omap2_mcspi.3
omap-mcspi.4 -> omap2_mcspi.4

Signed-off-by: Abraham Arce <x0066660@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/clock44xx_data.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 28b107967c861..a5c0c9c8e4962 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -2671,10 +2671,10 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK("omap-mcbsp.2",	"ick",				&dummy_ck,	CK_443X),
 	CLK("omap-mcbsp.3",	"ick",				&dummy_ck,	CK_443X),
 	CLK("omap-mcbsp.4",	"ick",				&dummy_ck,	CK_443X),
-	CLK("omap-mcspi.1",	"ick",				&dummy_ck,	CK_443X),
-	CLK("omap-mcspi.2",	"ick",				&dummy_ck,	CK_443X),
-	CLK("omap-mcspi.3",	"ick",				&dummy_ck,	CK_443X),
-	CLK("omap-mcspi.4",	"ick",				&dummy_ck,	CK_443X),
+	CLK("omap2_mcspi.1",	"ick",			&dummy_ck,	CK_443X),
+	CLK("omap2_mcspi.2",	"ick",			&dummy_ck,	CK_443X),
+	CLK("omap2_mcspi.3",	"ick",			&dummy_ck,	CK_443X),
+	CLK("omap2_mcspi.4",	"ick",			&dummy_ck,	CK_443X),
 	CLK(NULL,	"uart1_ick",			&dummy_ck,	CK_443X),
 	CLK(NULL,	"uart2_ick",			&dummy_ck,	CK_443X),
 	CLK(NULL,	"uart3_ick",			&dummy_ck,	CK_443X),

From 562468bd697a88ad78a751823dc92f027f8c179c Mon Sep 17 00:00:00 2001
From: "stanley.miao" <stanley.miao@windriver.com>
Date: Tue, 20 Apr 2010 06:33:26 +0000
Subject: [PATCH 369/464] omap: fix the compile error if CONFIG_MTD_NAND_OMAP2
 is notenabled

If CONFIG_MTD_NAND_OMAP2 is not enabled, there will be a compile error,
"gpmc_nand_init() is not defined". Add a inline noop function to fix it.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/include/plat/nand.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/plat-omap/include/plat/nand.h b/arch/arm/plat-omap/include/plat/nand.h
index 6ba88d2630d90..f8efd5466b1d0 100644
--- a/arch/arm/plat-omap/include/plat/nand.h
+++ b/arch/arm/plat-omap/include/plat/nand.h
@@ -29,4 +29,11 @@ struct omap_nand_platform_data {
 /* size (4 KiB) for IO mapping */
 #define	NAND_IO_SIZE	SZ_4K
 
+#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
 extern int gpmc_nand_init(struct omap_nand_platform_data *d);
+#else
+static inline int gpmc_nand_init(struct omap_nand_platform_data *d)
+{
+	return 0;
+}
+#endif

From 908c08d523f432a1b52298e2a50b21f4eebe6707 Mon Sep 17 00:00:00 2001
From: "stanley.miao" <stanley.miao@windriver.com>
Date: Tue, 20 Apr 2010 06:33:27 +0000
Subject: [PATCH 370/464] omap: remove one of the define of
 INT_34XX_BENCH_MPU_EMUL

INT_34XX_BENCH_MPU_EMUL was defined twice, another is at Line 312.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/include/plat/irqs.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h
index b65088a869e9e..401701977dbb8 100644
--- a/arch/arm/plat-omap/include/plat/irqs.h
+++ b/arch/arm/plat-omap/include/plat/irqs.h
@@ -345,8 +345,6 @@
 #define INT_34XX_MMC3_IRQ	94
 #define INT_34XX_GPT12_IRQ	95
 
-#define	INT_34XX_BENCH_MPU_EMUL	3
-
 #define INT_35XX_HECC0_IRQ		24
 #define INT_35XX_HECC1_IRQ		28
 #define INT_35XX_EMAC_C0_RXTHRESH_IRQ	67

From 5241b6b3bfa7be3661398cf93cb3dd187aeb65c6 Mon Sep 17 00:00:00 2001
From: "stanley.miao" <stanley.miao@windriver.com>
Date: Tue, 20 Apr 2010 06:33:29 +0000
Subject: [PATCH 371/464] AM3517: initialize i2c subsystem after mux subsystem

The initialize of i2c subsystem will set pinmux, so it should be done
after the initialize of mux subsystem initialization.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-am3517evm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index 6ae880585d54d..c1c4389fbd8f5 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -294,9 +294,9 @@ static struct omap_board_mux board_mux[] __initdata = {
 
 static void __init am3517_evm_init(void)
 {
-	am3517_evm_i2c_init();
-
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+
+	am3517_evm_i2c_init();
 	platform_add_devices(am3517_evm_devices,
 				ARRAY_SIZE(am3517_evm_devices));
 

From 11e1ef2d105900a302b7ca92bcaf96a96d0274a1 Mon Sep 17 00:00:00 2001
From: "stanley.miao" <stanley.miao@windriver.com>
Date: Tue, 20 Apr 2010 06:33:30 +0000
Subject: [PATCH 372/464] omap: fix a gpmc nand problem

If gpmc_t isn't given, we don't need to set timing for gpmc, or it will cause
a Oops.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/gpmc-nand.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-omap2/gpmc-nand.c b/arch/arm/mach-omap2/gpmc-nand.c
index 64d74f05abbe8..e57fb29ff855b 100644
--- a/arch/arm/mach-omap2/gpmc-nand.c
+++ b/arch/arm/mach-omap2/gpmc-nand.c
@@ -39,6 +39,9 @@ static int omap2_nand_gpmc_retime(void)
 	struct gpmc_timings t;
 	int err;
 
+	if (!gpmc_nand_data->gpmc_t)
+		return 0;
+
 	memset(&t, 0, sizeof(t));
 	t.sync_clk = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->sync_clk);
 	t.cs_on = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->cs_on);

From c8fa4d2738bc747e417a220e6ceb21e8c148266f Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jhnikula@gmail.com>
Date: Mon, 19 Apr 2010 13:52:09 +0000
Subject: [PATCH 373/464] omap: rx51_defconfig: Remove duplicate phonet

Phonet is enabled by the commit bce54fed941e03695ab557100a4bd1e457abca42
and this duplicate gives a warning when doing make rx51_defconfig.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/configs/rx51_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/configs/rx51_defconfig b/arch/arm/configs/rx51_defconfig
index 45135ffadc57d..cc6a32a80c94c 100644
--- a/arch/arm/configs/rx51_defconfig
+++ b/arch/arm/configs/rx51_defconfig
@@ -480,7 +480,6 @@ CONFIG_BT_HIDP=m
 # CONFIG_BT_HCIBFUSB is not set
 # CONFIG_BT_HCIVHCI is not set
 # CONFIG_AF_RXRPC is not set
-# CONFIG_PHONET is not set
 CONFIG_WIRELESS=y
 CONFIG_CFG80211=y
 # CONFIG_CFG80211_REG_DEBUG is not set

From cc352a3432abffb590b447fef89b4b5026387302 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jhnikula@gmail.com>
Date: Mon, 19 Apr 2010 13:52:10 +0000
Subject: [PATCH 374/464] omap: rx51_defconfig: Remove
 CONFIG_SYSFS_DEPRECATED*=y options

Modern udev will not work with the CONFIG_SYSFS_DEPRECATED*=y options and
it seems also that the Maemo release works without when testing with the
Maemo 2.6.28 kernel.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/configs/rx51_defconfig | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/configs/rx51_defconfig b/arch/arm/configs/rx51_defconfig
index cc6a32a80c94c..473f9e13f08b3 100644
--- a/arch/arm/configs/rx51_defconfig
+++ b/arch/arm/configs/rx51_defconfig
@@ -59,8 +59,6 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y

From aee44c30e33bf8126773d1e2963e330b784ccd7c Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 7 Apr 2010 07:47:23 +0000
Subject: [PATCH 375/464] omap4: Fix McBSP4 base address

This patch fixes the McBSP4 base address for OMAP4

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/include/plat/mcbsp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/plat-omap/include/plat/mcbsp.h b/arch/arm/plat-omap/include/plat/mcbsp.h
index 39748354ce455..7de903d7c1ce0 100644
--- a/arch/arm/plat-omap/include/plat/mcbsp.h
+++ b/arch/arm/plat-omap/include/plat/mcbsp.h
@@ -59,7 +59,7 @@
 #define OMAP44XX_MCBSP1_BASE	0x49022000
 #define OMAP44XX_MCBSP2_BASE	0x49024000
 #define OMAP44XX_MCBSP3_BASE	0x49026000
-#define OMAP44XX_MCBSP4_BASE	0x48074000
+#define OMAP44XX_MCBSP4_BASE	0x48096000
 
 #if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
 

From 31849483f17dd76d48341dfc6dfc38261b630d26 Mon Sep 17 00:00:00 2001
From: Thomas Weber <swirl@gmx.li>
Date: Thu, 25 Mar 2010 20:21:54 +0000
Subject: [PATCH 376/464] omap: board-sdp-flash.c: Fix typos in debug output

Corrected type of flash in output (OneNAND => NOR).
Removed whitespace after newline in output.
Removed double whitespace in output.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-sdp-flash.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/board-sdp-flash.c b/arch/arm/mach-omap2/board-sdp-flash.c
index b1b88deec7f24..2d026328e3852 100644
--- a/arch/arm/mach-omap2/board-sdp-flash.c
+++ b/arch/arm/mach-omap2/board-sdp-flash.c
@@ -253,20 +253,20 @@ void __init sdp_flash_init(struct flash_partitions sdp_partition_info[])
 	}
 
 	if (norcs > GPMC_CS_NUM)
-		printk(KERN_INFO "OneNAND: Unable to find configuration "
-				" in GPMC\n ");
+		printk(KERN_INFO "NOR: Unable to find configuration "
+				"in GPMC\n");
 	else
 		board_nor_init(sdp_partition_info[0], norcs);
 
 	if (onenandcs > GPMC_CS_NUM)
 		printk(KERN_INFO "OneNAND: Unable to find configuration "
-				" in GPMC\n ");
+				"in GPMC\n");
 	else
 		board_onenand_init(sdp_partition_info[1], onenandcs);
 
 	if (nandcs > GPMC_CS_NUM)
 		printk(KERN_INFO "NAND: Unable to find configuration "
-				" in GPMC\n ");
+				"in GPMC\n");
 	else
 		board_nand_init(sdp_partition_info[2], nandcs);
 }

From 57ed0e7b72e9b472c5ce862eaba5435b36233fab Mon Sep 17 00:00:00 2001
From: Francisco Alecrim <francisco.alecrim@openbossa.org>
Date: Wed, 17 Mar 2010 19:46:42 +0000
Subject: [PATCH 377/464] n8x0_defconfig: remove CONFIG_NILFS2_FS override

arch/arm/configs/n8x0_defconfig:1061:warning: override: reassigning to
symbol NILFS2_FS

Signed-off-by: Francisco Alecrim <francisco.alecrim@openbossa.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/configs/n8x0_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/configs/n8x0_defconfig b/arch/arm/configs/n8x0_defconfig
index 216ad00948afb..9405e32783de8 100644
--- a/arch/arm/configs/n8x0_defconfig
+++ b/arch/arm/configs/n8x0_defconfig
@@ -1058,7 +1058,6 @@ CONFIG_JFFS2_CMODE_PRIORITY=y
 # CONFIG_ROMFS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-# CONFIG_NILFS2_FS is not set
 CONFIG_NETWORK_FILESYSTEMS=y
 # CONFIG_NFS_FS is not set
 # CONFIG_NFSD is not set

From 6057db52a2c85659821feac4d3a86ada711893a4 Mon Sep 17 00:00:00 2001
From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Mar 2010 12:52:10 +0000
Subject: [PATCH 378/464] omap: Devkit8000: Fix typo in supplies

Replace wrong vdss_dsi with vdds_dsi.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-devkit8000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index db4c093e2afbe..b82e4387faef3 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -303,7 +303,7 @@ static struct regulator_consumer_supply devkit8000_vpll2_supplies[] = {
 	.dev		= &devkit8000_lcd_device.dev,
 	},
 	{
-	.supply		= "vdss_dsi",
+	.supply		= "vdds_dsi",
 	.dev		= &devkit8000_dss_device.dev,
 	}
 };

From 51824c5f5ecf6175c1cc913cb5c7d6d6213e96aa Mon Sep 17 00:00:00 2001
From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Mar 2010 12:52:11 +0000
Subject: [PATCH 379/464] omap: Devkit8000: Add missing package selection

Devkit8000 uses the CUS package for OMAP3530.

This patch adds missing package selection for CUS and enables
CONFIG_MUX.

Replace whitespace with tab in Kconfig.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index a8a3d1e23e265..2455dcc744a0a 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -59,8 +59,10 @@ config MACH_OMAP3_BEAGLE
 	select OMAP_PACKAGE_CBB
 
 config MACH_DEVKIT8000
-        bool "DEVKIT8000 board"
-        depends on ARCH_OMAP3
+	bool "DEVKIT8000 board"
+	depends on ARCH_OMAP3
+	select OMAP_PACKAGE_CUS
+	select OMAP_MUX
 
 config MACH_OMAP_LDP
 	bool "OMAP3 LDP board"

From 3cdc6ee54a491003b583b47a56c4052c76c965e6 Mon Sep 17 00:00:00 2001
From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Mar 2010 12:52:12 +0000
Subject: [PATCH 380/464] omap: Devkit8000: Fix typo in pin name

Replace wrong sdr_cke[01] with sdrc_cke[01].

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-devkit8000.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index b82e4387faef3..3fafef4ade0d9 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -676,8 +676,8 @@ static void __init devkit8000_init(void)
 	devkit8000_flash_init();
 
 	/* Ensure SDRC pins are mux'd for self-refresh */
-	omap_mux_init_signal("sdr_cke0", OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("sdr_cke1", OMAP_PIN_OUTPUT);
+	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
+	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 }
 
 static void __init devkit8000_map_io(void)

From 184644a633d1b8cf5f2f7cf0debc4ee3917adc44 Mon Sep 17 00:00:00 2001
From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Mar 2010 12:52:13 +0000
Subject: [PATCH 381/464] omap: Devkit8000: Remove unnecessary include file

Remove include otg.h.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-devkit8000.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index 3fafef4ade0d9..d605e0558a545 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -50,7 +50,6 @@
 #include <linux/input/matrix_keypad.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
-#include <linux/usb/otg.h>
 #include <linux/dm9000.h>
 #include <linux/interrupt.h>
 

From faec32e5bfe699e40adcf30df82ec1db8fe8e43b Mon Sep 17 00:00:00 2001
From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Mar 2010 12:52:14 +0000
Subject: [PATCH 382/464] omap: Devkit8000: Change position of init calls

Change position of calling serial and ethernet initialization.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-devkit8000.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index d605e0558a545..0b4abd47a804f 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -649,6 +649,10 @@ static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 
 static void __init devkit8000_init(void)
 {
+	omap_serial_init();
+
+	omap_dm9000_init();
+
 	devkit8000_i2c_init();
 	platform_add_devices(devkit8000_devices,
 			ARRAY_SIZE(devkit8000_devices));
@@ -658,10 +662,6 @@ static void __init devkit8000_init(void)
 	spi_register_board_info(devkit8000_spi_board_info,
 	ARRAY_SIZE(devkit8000_spi_board_info));
 
-	omap_serial_init();
-
-	omap_dm9000_init();
-
 	devkit8000_ads7846_init();
 
 	omap_mux_init_gpio(170, OMAP_PIN_INPUT);

From cf25eb950d0d8ada0db33c1d99d61bce620c128f Mon Sep 17 00:00:00 2001
From: Thomas Weber <weber@corscience.de>
Date: Wed, 24 Mar 2010 12:52:15 +0000
Subject: [PATCH 383/464] omap: Devkit8000: Remove unused pins

Old code from original patch contains beagle board pins that are
not available on the Devkit8000.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-devkit8000.c | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index 0b4abd47a804f..47e3af2166d49 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -268,20 +268,6 @@ static int devkit8000_twl_gpio_setup(struct device *dev,
 	devkit8000_vmmc1_supply.dev = mmc[0].dev;
 	devkit8000_vsim_supply.dev = mmc[0].dev;
 
-	/* REVISIT: need ehci-omap hooks for external VBUS
-	 * power switch and overcurrent detect
-	 */
-
-	gpio_request(gpio + 1, "EHCI_nOC");
-	gpio_direction_input(gpio + 1);
-
-	/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
-	gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
-	gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
-
-	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
-	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
-
 	return 0;
 }
 
@@ -664,12 +650,6 @@ static void __init devkit8000_init(void)
 
 	devkit8000_ads7846_init();
 
-	omap_mux_init_gpio(170, OMAP_PIN_INPUT);
-
-	gpio_request(170, "DVI_nPD");
-	/* REVISIT leave DVI powered down until it's needed ... */
-	gpio_direction_output(170, true);
-
 	usb_musb_init(&musb_board_data);
 	usb_ehci_init(&ehci_pdata);
 	devkit8000_flash_init();

From 223e632c7a26c0424d658c35ef8c5e06bc28bf96 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <Aaro.Koskinen@nokia.com>
Date: Mon, 22 Mar 2010 17:28:19 +0000
Subject: [PATCH 384/464] omap: delete unused bootloader tag variables

They are not needed and add over 512 bytes to kernel data.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/common.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 01cbb48442ac2..f12f0e39ddf2b 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -44,9 +44,6 @@
 
 #define NO_LENGTH_CHECK 0xffffffff
 
-unsigned char omap_bootloader_tag[512];
-int omap_bootloader_tag_len;
-
 struct omap_board_config_kernel *omap_board_config;
 int omap_board_config_size;
 

From 3b1fd3e55a39824e68bc8dd055d14892476e3671 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <avorontsov@mvista.com>
Date: Fri, 23 Apr 2010 07:12:35 +0000
Subject: [PATCH 385/464] fsl_pq_mdio: Fix kernel oops during OF address
 translation

Old P1020RDB device trees were not specifing tbipa address for
MDIO nodes, which is now causing this kernel oops:

 ...
 eth2: TX BD ring size for Q[6]: 256
 eth2: TX BD ring size for Q[7]: 256
 Unable to handle kernel paging request for data at address 0x00000000
 Faulting instruction address: 0xc0015504
 Oops: Kernel access of bad area, sig: 11 [#1]
 ...
 NIP [c0015504] memcpy+0x3c/0x9c
 LR [c000a9f8] __of_translate_address+0xfc/0x21c
 Call Trace:
 [df839e00] [c000a94c] __of_translate_address+0x50/0x21c (unreliable)
 [df839e50] [c01a33e8] get_gfar_tbipa+0xb0/0xe0
 ...

The old device trees are buggy, though having a dead ethernet is
better than a dead kernel, so fix the issue by using of_iomap().

Also, a somewhat similar issue exist in the probe() routine, though
there the oops is only a possibility. Nonetheless, fix it too.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/fsl_pq_mdio.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index d5160edf2fcf2..3acac5f930c8f 100644
--- a/drivers/net/fsl_pq_mdio.c
+++ b/drivers/net/fsl_pq_mdio.c
@@ -205,8 +205,6 @@ static int fsl_pq_mdio_find_free(struct mii_bus *new_bus)
 static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct device_node *np)
 {
 	struct gfar __iomem *enet_regs;
-	u32 __iomem *ioremap_tbipa;
-	u64 addr, size;
 
 	/*
 	 * This is mildly evil, but so is our hardware for doing this.
@@ -220,9 +218,7 @@ static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct devi
 		return &enet_regs->tbipa;
 	} else if (of_device_is_compatible(np, "fsl,etsec2-mdio") ||
 			of_device_is_compatible(np, "fsl,etsec2-tbi")) {
-		addr = of_translate_address(np, of_get_address(np, 1, &size, NULL));
-		ioremap_tbipa = ioremap(addr, size);
-		return ioremap_tbipa;
+		return of_iomap(np, 1);
 	} else
 		return NULL;
 }
@@ -279,6 +275,7 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
 	u32 __iomem *tbipa;
 	struct mii_bus *new_bus;
 	int tbiaddr = -1;
+	const u32 *addrp;
 	u64 addr = 0, size = 0;
 	int err = 0;
 
@@ -297,8 +294,19 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
 	new_bus->priv = priv;
 	fsl_pq_mdio_bus_name(new_bus->id, np);
 
+	addrp = of_get_address(np, 0, &size, NULL);
+	if (!addrp) {
+		err = -EINVAL;
+		goto err_free_bus;
+	}
+
 	/* Set the PHY base address */
-	addr = of_translate_address(np, of_get_address(np, 0, &size, NULL));
+	addr = of_translate_address(np, addrp);
+	if (addr == OF_BAD_ADDR) {
+		err = -EINVAL;
+		goto err_free_bus;
+	}
+
 	map = ioremap(addr, size);
 	if (!map) {
 		err = -ENOMEM;

From 7ce97d4f78b62e3af24cdd4df953d777e7efb2f6 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <avorontsov@mvista.com>
Date: Fri, 23 Apr 2010 07:12:44 +0000
Subject: [PATCH 386/464] gianfar: Fix potential oops during OF address
 translation

gianfar driver may pass NULL pointer to the of_translate_address(),
which may lead to a kernel oops. Fix this by using of_iomap(), which
is also much simpler and shorter.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/gianfar.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 080d1cea5b265..df49af3821599 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -549,12 +549,8 @@ static int gfar_parse_group(struct device_node *np,
 		struct gfar_private *priv, const char *model)
 {
 	u32 *queue_mask;
-	u64 addr, size;
-
-	addr = of_translate_address(np,
-			of_get_address(np, 0, &size, NULL));
-	priv->gfargrp[priv->num_grps].regs = ioremap(addr, size);
 
+	priv->gfargrp[priv->num_grps].regs = of_iomap(np, 0);
 	if (!priv->gfargrp[priv->num_grps].regs)
 		return -ENOMEM;
 

From cac36f707119b792b2396aed371d6b5cdc194890 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Fri, 23 Apr 2010 13:17:37 -0400
Subject: [PATCH 387/464] reiserfs: fix permissions on .reiserfs_priv

Commit 677c9b2e393a0cd203bd54e9c18b012b2c73305a ("reiserfs: remove
privroot hiding in lookup") removed the magic from the lookup code to hide
the .reiserfs_priv directory since it was getting loaded at mount-time
instead.  The intent was that the entry would be hidden from the user via
a poisoned d_compare, but this was faulty.

This introduced a security issue where unprivileged users could access and
modify extended attributes or ACLs belonging to other users, including
root.

This patch resolves the issue by properly hiding .reiserfs_priv.  This was
the intent of the xattr poisoning code, but it appears to have never
worked as expected.  This is fixed by using d_revalidate instead of
d_compare.

This patch makes -oexpose_privroot a no-op.  I'm fine leaving it this way.
The effort involved in working out the corner cases wrt permissions and
caching outweigh the benefit of the feature.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Acked-by: Edward Shishkin <edward.shishkin@gmail.com>
Reported-by: Matt McCutchen <matt@mattmccutchen.net>
Tested-by: Matt McCutchen <matt@mattmccutchen.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/dir.c   |  2 --
 fs/reiserfs/xattr.c | 17 ++++-------------
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index f8a6075abf50c..07930449a9583 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -46,8 +46,6 @@ static inline bool is_privroot_deh(struct dentry *dir,
 				   struct reiserfs_de_head *deh)
 {
 	struct dentry *privroot = REISERFS_SB(dir->d_sb)->priv_root;
-	if (reiserfs_expose_privroot(dir->d_sb))
-		return 0;
 	return (dir == dir->d_parent && privroot->d_inode &&
 	        deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid);
 }
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 4f9586bb7631e..28f0a448f3c7e 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -973,21 +973,13 @@ int reiserfs_permission(struct inode *inode, int mask)
 	return generic_permission(inode, mask, NULL);
 }
 
-/* This will catch lookups from the fs root to .reiserfs_priv */
-static int
-xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
+static int xattr_hide_revalidate(struct dentry *dentry, struct nameidata *nd)
 {
-	struct dentry *priv_root = REISERFS_SB(dentry->d_sb)->priv_root;
-	if (container_of(q1, struct dentry, d_name) == priv_root)
-		return -ENOENT;
-	if (q1->len == name->len &&
-		   !memcmp(q1->name, name->name, name->len))
-		return 0;
-	return 1;
+	return -EPERM;
 }
 
 static const struct dentry_operations xattr_lookup_poison_ops = {
-	.d_compare = xattr_lookup_poison,
+	.d_revalidate = xattr_hide_revalidate,
 };
 
 int reiserfs_lookup_privroot(struct super_block *s)
@@ -1001,8 +993,7 @@ int reiserfs_lookup_privroot(struct super_block *s)
 				strlen(PRIVROOT_NAME));
 	if (!IS_ERR(dentry)) {
 		REISERFS_SB(s)->priv_root = dentry;
-		if (!reiserfs_expose_privroot(s))
-			s->s_root->d_op = &xattr_lookup_poison_ops;
+		dentry->d_op = &xattr_lookup_poison_ops;
 		if (dentry->d_inode)
 			dentry->d_inode->i_flags |= S_PRIVATE;
 	} else

From 93d5c9be1ddd57d4063ce463c9ac2be1e5ee14f1 Mon Sep 17 00:00:00 2001
From: Andrea Arcangeli <aarcange@redhat.com>
Date: Fri, 23 Apr 2010 13:17:39 -0400
Subject: [PATCH 388/464] memcg: fix prepare migration

If a signal is pending (task being killed by sigkill)
__mem_cgroup_try_charge will write NULL into &mem, and css_put will oops
on null pointer dereference.

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
  IP: [<ffffffff810fc6cc>] mem_cgroup_prepare_migration+0x7c/0xc0
  PGD a5d89067 PUD a5d8a067 PMD 0
  Oops: 0000 [#1] SMP
  last sysfs file: /sys/devices/platform/microcode/firmware/microcode/loading
  CPU 0
  Modules linked in: nfs lockd nfs_acl auth_rpcgss sunrpc acpi_cpufreq pcspkr sg [last unloaded: microcode]

  Pid: 5299, comm: largepages Tainted: G        W  2.6.34-rc3 #3 Penryn1600SLI-110dB/To Be Filled By O.E.M.
  RIP: 0010:[<ffffffff810fc6cc>]  [<ffffffff810fc6cc>] mem_cgroup_prepare_migration+0x7c/0xc0

[nishimura@mxp.nes.nec.co.jp: fix merge issues]
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memcontrol.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index f4ede99c8b9b5..6c755de385f73 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2429,11 +2429,11 @@ int mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr)
 	}
 	unlock_page_cgroup(pc);
 
+	*ptr = mem;
 	if (mem) {
-		ret = __mem_cgroup_try_charge(NULL, GFP_KERNEL, &mem, false);
+		ret = __mem_cgroup_try_charge(NULL, GFP_KERNEL, ptr, false);
 		css_put(&mem->css);
 	}
-	*ptr = mem;
 	return ret;
 }
 

From fb2162df74bb19552db3d988fd11c787cf5fad56 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Fri, 23 Apr 2010 13:17:41 -0400
Subject: [PATCH 389/464] reiserfs: fix corruption during shrinking of xattrs

Commit 48b32a3553a54740d236b79a90f20147a25875e3 ("reiserfs: use generic
xattr handlers") introduced a problem that causes corruption when extended
attributes are replaced with a smaller value.

The issue is that the reiserfs_setattr to shrink the xattr file was moved
from before the write to after the write.

The root issue has always been in the reiserfs xattr code, but was papered
over by the fact that in the shrink case, the file would just be expanded
again while the xattr was written.

The end result is that the last 8 bytes of xattr data are lost.

This patch fixes it to use new_size.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=14826

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reported-by: Christian Kujau <lists@nerdbynature.de>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Cc: Edward Shishkin <edward.shishkin@gmail.com>
Cc: Jethro Beekman <kernel@jbeekman.nl>
Cc: Greg Surbey <gregsurbey@hotmail.com>
Cc: Marco Gatti <marco.gatti@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/xattr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 28f0a448f3c7e..e7cc00e636dcb 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -554,7 +554,7 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
 	if (!err && new_size < i_size_read(dentry->d_inode)) {
 		struct iattr newattrs = {
 			.ia_ctime = current_fs_time(inode->i_sb),
-			.ia_size = buffer_size,
+			.ia_size = new_size,
 			.ia_valid = ATTR_SIZE | ATTR_CTIME,
 		};
 

From 46da27664887fb95cedba53eafcf876de812c8c1 Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@linux-m68k.org>
Date: Fri, 23 Apr 2010 13:17:44 -0400
Subject: [PATCH 390/464] kernel/sys.c: fix compat uname machine

On ppc64 you get this error:

  $ setarch ppc -R true
  setarch: ppc: Unrecognized architecture

because uname still reports ppc64 as the machine.

So mask off the personality flags when checking for PER_LINUX32.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/sys.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index 6d1a7e0f9d5be..7cb426a58965d 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1118,7 +1118,7 @@ DECLARE_RWSEM(uts_sem);
 
 #ifdef COMPAT_UTS_MACHINE
 #define override_architecture(name) \
-	(current->personality == PER_LINUX32 && \
+	(personality(current->personality) == PER_LINUX32 && \
 	 copy_to_user(name->machine, COMPAT_UTS_MACHINE, \
 		      sizeof(COMPAT_UTS_MACHINE)))
 #else

From e59464c735db19619cde2aa331609adb02005f5b Mon Sep 17 00:00:00 2001
From: Changli Gao <xiaosuo@gmail.com>
Date: Fri, 23 Apr 2010 13:17:45 -0400
Subject: [PATCH 391/464] flex_array: fix the panic when calling
 flex_array_alloc() without __GFP_ZERO

memset() is called with the wrong address and the kernel panics.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/flex_array.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/flex_array.c b/lib/flex_array.c
index 66eef2e4483ea..41b1804fa728a 100644
--- a/lib/flex_array.c
+++ b/lib/flex_array.c
@@ -99,7 +99,7 @@ struct flex_array *flex_array_alloc(int element_size, unsigned int total,
 	ret->element_size = element_size;
 	ret->total_nr_elements = total;
 	if (elements_fit_in_base(ret) && !(flags & __GFP_ZERO))
-		memset(ret->parts[0], FLEX_ARRAY_FREE,
+		memset(&ret->parts[0], FLEX_ARRAY_FREE,
 						FLEX_ARRAY_BASE_BYTES_LEFT);
 	return ret;
 }

From a88a2b886404b1cfc109125b1cba4775e8682955 Mon Sep 17 00:00:00 2001
From: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Date: Fri, 23 Apr 2010 13:17:47 -0400
Subject: [PATCH 392/464] mtd: fix Orion NAND driver compilation with ARM OABI

We must tell GCC to use even register for variable passed to ldrd
instruction.  Without this patch GCC 4.2.1 puts this variable to r2/r3 on
EABI and r3/r4 on OABI, so force it to r2/r3.  This does not change
anything when EABI and OABI compilation works OK.

Without this patch and with OABI I get:

    CC      drivers/mtd/nand/orion_nand.o
  /tmp/ccMkwOCs.s: Assembler messages:
  /tmp/ccMkwOCs.s:63: Error: first destination register must be even -- `ldrd r3,[ip]'
  make[5]: *** [drivers/mtd/nand/orion_nand.o] Error 1

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jamie Lokier <jamie@shareable.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/mtd/nand/orion_nand.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index f59c07427af3e..d60fc5719fef3 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -60,7 +60,13 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 	}
 	buf64 = (uint64_t *)buf;
 	while (i < len/8) {
-		uint64_t x;
+		/*
+		 * Since GCC has no proper constraint (PR 43518)
+		 * force x variable to r2/r3 registers as ldrd instruction
+		 * requires first register to be even.
+		 */
+		register uint64_t x asm ("r2");
+
 		asm volatile ("ldrd\t%0, [%1]" : "=&r" (x) : "r" (io_base));
 		buf64[i++] = x;
 	}

From 9bd14a839d2ec703c56593a7209f2310c16d6478 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 23 Apr 2010 13:17:48 -0400
Subject: [PATCH 393/464] lis3: add support for HP ProBook 432x/442x/452x/522x

Correct axis-mappings for new HP ProBook laptops.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/hwmon/hp_accel.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index be475e844c2a7..c8ab505166721 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -217,6 +217,10 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
 	AXIS_DMI_MATCH("DV7", "HP Pavilion dv7", x_inverted),
 	AXIS_DMI_MATCH("HP8710", "HP Compaq 8710", y_inverted),
 	AXIS_DMI_MATCH("HDX18", "HP HDX 18", x_inverted),
+	AXIS_DMI_MATCH("HPB432x", "HP ProBook 432", xy_rotated_left),
+	AXIS_DMI_MATCH("HPB442x", "HP ProBook 442", xy_rotated_left),
+	AXIS_DMI_MATCH("HPB452x", "HP ProBook 452", y_inverted),
+	AXIS_DMI_MATCH("HPB522x", "HP ProBook 522", xy_swap),
 	{ NULL, }
 /* Laptop models without axis info (yet):
  * "NC6910" "HP Compaq 6910"

From 8a3bdfe6cd841880a5d849c40f90093b3817f6e0 Mon Sep 17 00:00:00 2001
From: Thomas Gerlach <t.m.gerlach@freenet.de>
Date: Fri, 23 Apr 2010 13:17:50 -0400
Subject: [PATCH 394/464] drivers/video/efifb.c: support framebuffer for NVIDIA
 9400M in MacBook Pro 5,1

Description of patch:
---------------------

This is a patch for the EFI framebuffer driver to enable the framebuffer
of the NVIDIA 9400M as found in MacBook Pro (MBP) 5,1 and up.  The
framebuffer of the NVIDIA graphic cards are located at the following
addresses in memory:

9400M:    0xC0010000
9600M GT: 0xB0030000

The patch delivered right here only provides the memory location of the
framebuffer of the 9400M device.  The 9600M GT is not covered.  It is
assumed that the 9400M is used when powered up the MBP.

The information which device is currently powered and in use is stored in
the 64 bytes large EFI variable "gpu-power-prefs".  More specifically,
byte 0x3B indicates whether 9600M GT (0x00) or 9400M (0x01) is online.

The PCI bus IDs are the following:
9400M:    PCI 03:00:00
9600M GT: PCI 02:00:00

The EFI variables can be easily read-out and manipulated with "rEFIt", an
MBP specific bootloader tool.  For more information on how handle rEFIt
and EFI variables please consult "http://refit.sourceforge.net" and
"http://ubuntuforums.org/archive/index.php/t-1076879.html".

IMPORTANT NOTE: The information on how to activate the 9400M device given
at "ubuntuforums.org" is not correct, since it states

gpu-power-prefs[0x3B] = 0x00 -> 9400M (PCI 02:00:00)
gpu-power-prefs[0x3B] = 0x01 -> 9600M GT (PCI 03:00:00)

Actually, the assignment of the values and the PCI bus IDs are swapped.

Suggestions:
------------

To cover framebuffers of both 9400M and 9600M GT, I would suggest to
implement a conditional on "gpu-power-prefs".  Depending on the value of
byte 0x3B, the according framebuffer is selected.  However, this requires
kernel access to the EFI variables.

[akpm@linux-foundation.org: rename optname, per Peter Jones]
Signed-off-by: Thomas Gerlach <t.m.gerlach@freenet.de>
Acked-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/efifb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 581d2dbf675a0..ecf405562f5ce 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -49,6 +49,7 @@ enum {
 	M_MBP_2,	/* MacBook Pro 2nd gen */
 	M_MBP_SR,	/* MacBook Pro (Santa Rosa) */
 	M_MBP_4,	/* MacBook Pro, 4th gen */
+	M_MBP_5_1,    /* MacBook Pro, 5,1th gen */
 	M_UNKNOWN	/* placeholder */
 };
 
@@ -70,6 +71,7 @@ static struct efifb_dmi_info {
 	[M_MBP_2] = { "mbp2", 0, 0, 0, 0 }, /* placeholder */
 	[M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900 },
 	[M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200 },
+	[M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900 },
 	[M_UNKNOWN] = { NULL, 0, 0, 0, 0 }
 };
 
@@ -106,6 +108,7 @@ static struct dmi_system_id __initdata dmi_system_table[] = {
 	EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
 	EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
 	EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
+	EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
 	{},
 };
 

From 7716fa66034c408b0f59e8b9c62f793befa5b338 Mon Sep 17 00:00:00 2001
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Date: Fri, 23 Apr 2010 13:17:51 -0400
Subject: [PATCH 395/464] cgroups: fix procs documentation

Writing to cgroup.procs is not supported now.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Ben Blum <bblum@andrew.cmu.edu>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/cgroups/cgroups.txt | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt
index fd588ff0e2965..a1ca5924faff1 100644
--- a/Documentation/cgroups/cgroups.txt
+++ b/Documentation/cgroups/cgroups.txt
@@ -235,8 +235,7 @@ containing the following files describing that cgroup:
  - cgroup.procs: list of tgids in the cgroup.  This list is not
    guaranteed to be sorted or free of duplicate tgids, and userspace
    should sort/uniquify the list if this property is required.
-   Writing a tgid into this file moves all threads with that tgid into
-   this cgroup.
+   This is a read-only file, for now.
  - notify_on_release flag: run the release agent on exit?
  - release_agent: the path to use for release notifications (this file
    exists in the top cgroup only)

From 9a6a1ecd9e9b5d046a236da2f7eb6b6812f04229 Mon Sep 17 00:00:00 2001
From: Ian Dall <ian@beware.dropbear.id.au>
Date: Fri, 23 Apr 2010 13:17:53 -0400
Subject: [PATCH 396/464] w1: w1 temp: fix negative termperature calculation

Fix regression caused by commit 507e2fbaaacb6f164b4125b87c5002f95143174b
("w1: w1 temp calculation overflow fix") whereby negative temperatures for
the DS18B20 are not converted properly.

When the temperature exceeds 32767 milli-degrees the temperature overflows
to -32768 millidegrees.  These are both well within the -55 - +125 degree
range for the sensor.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=12646

Signed-of-by: Ian Dall <ian@beware.dropbear.id.au>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Tested-by: Karsten Elfenbein <kelfe@gmx.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/w1/slaves/w1_therm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index 1ed3d554e3728..17726a05a0a62 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -115,9 +115,8 @@ static struct w1_therm_family_converter w1_therm_families[] = {
 
 static inline int w1_DS18B20_convert_temp(u8 rom[9])
 {
-	int t = ((s16)rom[1] << 8) | rom[0];
-	t = t*1000/16;
-	return t;
+	s16 t = le16_to_cpup((__le16 *)rom);
+	return t*1000/16;
 }
 
 static inline int w1_DS18S20_convert_temp(u8 rom[9])

From 23be7468e8802a2ac1de6ee3eecb3ec7f14dc703 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mel@csn.ul.ie>
Date: Fri, 23 Apr 2010 13:17:56 -0400
Subject: [PATCH 397/464] hugetlb: fix infinite loop in get_futex_key() when
 backed by huge pages

If a futex key happens to be located within a huge page mapped
MAP_PRIVATE, get_futex_key() can go into an infinite loop waiting for a
page->mapping that will never exist.

See https://bugzilla.redhat.com/show_bug.cgi?id=552257 for more details
about the problem.

This patch makes page->mapping a poisoned value that includes
PAGE_MAPPING_ANON mapped MAP_PRIVATE.  This is enough for futex to
continue but because of PAGE_MAPPING_ANON, the poisoned value is not
dereferenced or used by futex.  No other part of the VM should be
dereferencing the page->mapping of a hugetlbfs page as its page cache is
not on the LRU.

This patch fixes the problem with the test case described in the bugzilla.

[akpm@linux-foundation.org: mel cant spel]
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Darren Hart <darren@dvhart.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/poison.h | 9 +++++++++
 mm/hugetlb.c           | 5 ++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/linux/poison.h b/include/linux/poison.h
index 2110a81c5e2af..34066ffd893d7 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -48,6 +48,15 @@
 #define POISON_FREE	0x6b	/* for use-after-free poisoning */
 #define	POISON_END	0xa5	/* end-byte of poisoning */
 
+/********** mm/hugetlb.c **********/
+/*
+ * Private mappings of hugetlb pages use this poisoned value for
+ * page->mapping. The core VM should not be doing anything with this mapping
+ * but futex requires the existence of some page->mapping value even though it
+ * is unused if PAGE_MAPPING_ANON is set.
+ */
+#define HUGETLB_POISON	((void *)(0x00300300 + POISON_POINTER_DELTA + PAGE_MAPPING_ANON))
+
 /********** arch/$ARCH/mm/init.c **********/
 #define POISON_FREE_INITMEM	0xcc
 
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 6034dc9e97967..ffbdfc86aedf7 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -546,6 +546,7 @@ static void free_huge_page(struct page *page)
 
 	mapping = (struct address_space *) page_private(page);
 	set_page_private(page, 0);
+	page->mapping = NULL;
 	BUG_ON(page_count(page));
 	INIT_LIST_HEAD(&page->lru);
 
@@ -2447,8 +2448,10 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 			spin_lock(&inode->i_lock);
 			inode->i_blocks += blocks_per_huge_page(h);
 			spin_unlock(&inode->i_lock);
-		} else
+		} else {
 			lock_page(page);
+			page->mapping = HUGETLB_POISON;
+		}
 	}
 
 	/*

From ccdb40048b2972f10bdc944913c0e0ee26b5d1f2 Mon Sep 17 00:00:00 2001
From: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Date: Fri, 23 Apr 2010 13:17:58 -0400
Subject: [PATCH 398/464] lib: fix the use of LZO to decompress initramfs
 images

This patch fixes 2 issues with the LZO decompressor:

- It doesn't handle the case where a block isn't compressed at all.  In
  this case, calling lzo1x_decompress_safe will fail, so we need to just
  use memcpy() instead (the upstream LZO code does something similar)

- Since commit 54291362d2a5738e1b0495df2abcb9e6b0563a3f ("initramfs: add
  missing decompressor error check") , the decompressor return code is
  checked in the init/initramfs.c The LZO decompressor didn't return the
  expected value, causing the initramfs code to falsely believe a
  decompression error occured

Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Tested-by: bert schulze <spambemyguest@googlemail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/decompress_unlzo.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/lib/decompress_unlzo.c b/lib/decompress_unlzo.c
index db521f45626e0..bcb3a4bd68ff9 100644
--- a/lib/decompress_unlzo.c
+++ b/lib/decompress_unlzo.c
@@ -97,7 +97,7 @@ STATIC inline int INIT unlzo(u8 *input, int in_len,
 	u32 src_len, dst_len;
 	size_t tmp;
 	u8 *in_buf, *in_buf_save, *out_buf;
-	int obytes_processed = 0;
+	int ret = -1;
 
 	set_error_fn(error_fn);
 
@@ -174,15 +174,22 @@ STATIC inline int INIT unlzo(u8 *input, int in_len,
 
 		/* decompress */
 		tmp = dst_len;
-		r = lzo1x_decompress_safe((u8 *) in_buf, src_len,
+
+		/* When the input data is not compressed at all,
+		 * lzo1x_decompress_safe will fail, so call memcpy()
+		 * instead */
+		if (unlikely(dst_len == src_len))
+			memcpy(out_buf, in_buf, src_len);
+		else {
+			r = lzo1x_decompress_safe((u8 *) in_buf, src_len,
 						out_buf, &tmp);
 
-		if (r != LZO_E_OK || dst_len != tmp) {
-			error("Compressed data violation");
-			goto exit_2;
+			if (r != LZO_E_OK || dst_len != tmp) {
+				error("Compressed data violation");
+				goto exit_2;
+			}
 		}
 
-		obytes_processed += dst_len;
 		if (flush)
 			flush(out_buf, dst_len);
 		if (output)
@@ -196,6 +203,7 @@ STATIC inline int INIT unlzo(u8 *input, int in_len,
 			in_buf += src_len;
 	}
 
+	ret = 0;
 exit_2:
 	if (!input)
 		free(in_buf);
@@ -203,7 +211,7 @@ STATIC inline int INIT unlzo(u8 *input, int in_len,
 	if (!output)
 		free(out_buf);
 exit:
-	return obytes_processed;
+	return ret;
 }
 
 #define decompress unlzo

From 93b4a44f3ad69520d605aace3f3486b8eb754b96 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 23 Apr 2010 13:18:00 -0400
Subject: [PATCH 399/464] keys: fix an RCU warning

Fix the following RCU warning:

  ===================================================
  [ INFO: suspicious rcu_dereference_check() usage. ]
  ---------------------------------------------------
  security/keys/request_key.c:116 invoked rcu_dereference_check() without protection!

This was caused by doing:

	[root@andromeda ~]# keyctl newring fred @s
	539196288
	[root@andromeda ~]# keyctl request2 user a a 539196288
	request_key: Required key not available

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 security/keys/request_key.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 03fe63ed55bda..ea97c3120d662 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -68,7 +68,8 @@ static int call_sbin_request_key(struct key_construction *cons,
 {
 	const struct cred *cred = current_cred();
 	key_serial_t prkey, sskey;
-	struct key *key = cons->key, *authkey = cons->authkey, *keyring;
+	struct key *key = cons->key, *authkey = cons->authkey, *keyring,
+		*session;
 	char *argv[9], *envp[3], uid_str[12], gid_str[12];
 	char key_str[12], keyring_str[3][12];
 	char desc[20];
@@ -112,10 +113,12 @@ static int call_sbin_request_key(struct key_construction *cons,
 	if (cred->tgcred->process_keyring)
 		prkey = cred->tgcred->process_keyring->serial;
 
-	if (cred->tgcred->session_keyring)
-		sskey = rcu_dereference(cred->tgcred->session_keyring)->serial;
-	else
-		sskey = cred->user->session_keyring->serial;
+	rcu_read_lock();
+	session = rcu_dereference(cred->tgcred->session_keyring);
+	if (!session)
+		session = cred->user->session_keyring;
+	sskey = session->serial;
+	rcu_read_unlock();
 
 	sprintf(keyring_str[2], "%d", sskey);
 

From 31f2b0ebc01fd332cb0997f7ce9f9cde29af9e20 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Fri, 23 Apr 2010 13:18:01 -0400
Subject: [PATCH 400/464] rmap: anon_vma_prepare() can leak anon_vma_chain

If find_mergeable_anon_vma() succeeds but another thread installs
->anon_vma before we take ptl, then allocated == NULL but avc should be
freed.  Change the code to check avc != NULL to detect this case.

Also, a couple of whitespace changes to make the critical section more
visible.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/rmap.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index 526704e8215d0..07fc94758799b 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -133,8 +133,8 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 				goto out_enomem_free_avc;
 			allocated = anon_vma;
 		}
-		spin_lock(&anon_vma->lock);
 
+		spin_lock(&anon_vma->lock);
 		/* page_table_lock to protect against threads */
 		spin_lock(&mm->page_table_lock);
 		if (likely(!vma->anon_vma)) {
@@ -144,14 +144,15 @@ int anon_vma_prepare(struct vm_area_struct *vma)
 			list_add(&avc->same_vma, &vma->anon_vma_chain);
 			list_add(&avc->same_anon_vma, &anon_vma->head);
 			allocated = NULL;
+			avc = NULL;
 		}
 		spin_unlock(&mm->page_table_lock);
-
 		spin_unlock(&anon_vma->lock);
-		if (unlikely(allocated)) {
+
+		if (unlikely(allocated))
 			anon_vma_free(allocated);
+		if (unlikely(avc))
 			anon_vma_chain_free(avc);
-		}
 	}
 	return 0;
 

From 81fa08f25bd24fc51557a2d2364fa1ab5e7407b4 Mon Sep 17 00:00:00 2001
From: Amit Kucheria <amit.kucheria@canonical.com>
Date: Fri, 23 Apr 2010 13:18:03 -0400
Subject: [PATCH 401/464] w1: fix omap 1-wire driver compilation

Fixes the following error:

  drivers/w1/masters/omap_hdq.c: In function 'hdq_wait_for_flag':
  drivers/w1/masters/omap_hdq.c:137: error: implicit declaration of function 'schedule_timeout_uninterruptible'
  drivers/w1/masters/omap_hdq.c: In function 'hdq_write_byte':
  drivers/w1/masters/omap_hdq.c:177: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
  drivers/w1/masters/omap_hdq.c:177: error: (Each undeclared identifier is reported only once
  drivers/w1/masters/omap_hdq.c:177: error: for each function it appears in.)
  drivers/w1/masters/omap_hdq.c:177: error: implicit declaration of function 'schedule_timeout'
  drivers/w1/masters/omap_hdq.c: In function 'hdq_isr':
  drivers/w1/masters/omap_hdq.c:221: error: 'TASK_NORMAL' undeclared (first use in this function)
  drivers/w1/masters/omap_hdq.c: In function 'omap_hdq_break':
  drivers/w1/masters/omap_hdq.c:316: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function)

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/w1/masters/omap_hdq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index ef36fca2eed4d..3a7e9ff8a7462 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/sched.h>
 
 #include <asm/irq.h>
 #include <mach/hardware.h>

From 98d5ce0d0044666fc85a01915a1d22407eb546fd Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 23 Apr 2010 13:18:04 -0400
Subject: [PATCH 402/464] lib/vsprintf.c: add missing
 EXPORT_SYMBOL(simple_strtoll)

Add a missing EXPORT_SYMBOL.

I must be the first person that wants to use this function :-)

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/vsprintf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 7376b7c55ffee..46d34b0b74a87 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -118,6 +118,7 @@ long long simple_strtoll(const char *cp, char **endp, unsigned int base)
 
 	return simple_strtoull(cp, endp, base);
 }
+EXPORT_SYMBOL(simple_strtoll);
 
 /**
  * strict_strtoul - convert a string to an unsigned long strictly

From b8af67e2681c693a21f3933e3bdfce4cf66596d3 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Fri, 23 Apr 2010 13:18:06 -0400
Subject: [PATCH 403/464] fs/block_dev.c: fix performance regression in
 O_DIRECT|O_SYNC writes to block devices

We are seeing a large regression in database performance on recent
kernels.  The database opens a block device with O_DIRECT|O_SYNC and a
number of threads write to different regions of the file at the same time.

A simple test case is below.  I haven't defined DEVICE since getting it
wrong will destroy your data :) On an 3 disk LVM with a 64k chunk size we
see about 17MB/sec and only a few threads in IO wait:

procs  -----io---- -system-- -----cpu------
 r  b     bi    bo   in   cs us sy id wa st
 0  3      0 16170  656 2259  0  0 86 14  0
 0  2      0 16704  695 2408  0  0 92  8  0
 0  2      0 17308  744 2653  0  0 86 14  0
 0  2      0 17933  759 2777  0  0 89 10  0

Most threads are blocking in vfs_fsync_range, which has:

        mutex_lock(&mapping->host->i_mutex);
        err = fop->fsync(file, dentry, datasync);
        if (!ret)
                ret = err;
        mutex_unlock(&mapping->host->i_mutex);

commit 148f948ba877f4d3cdef036b1ff6d9f68986706a (vfs: Introduce new
helpers for syncing after writing to O_SYNC file or IS_SYNC inode) offers
some explanation of what is going on:

    Use these new helpers for syncing from generic VFS functions. This makes
    O_SYNC writes to block devices acquire i_mutex for syncing. If we really
    care about this, we can make block_fsync() drop the i_mutex and reacquire
    it before it returns.

Thanks Jan for such a good commit message!  As well as dropping i_mutex,
Christoph suggests we should remove the call to sync_blockdev():

> sync_blockdev is an overcomplicated alias for filemap_write_and_wait on
> the block device inode, which is exactly what we did just before calling
> into ->fsync

The patch below incorporates both suggestions. With it the testcase improves
from 17MB/s to 68M/sec:

procs  -----io---- -system-- -----cpu------
 r  b     bi    bo   in   cs us sy id wa st
 0  7      0 65536 1000 3878  0  0 70 30  0
 0 34      0 69632 1016 3921  0  1 46 53  0
 0 57      0 69632 1000 3921  0  0 55 45  0
 0 53      0 69640  754 4111  0  0 81 19  0

Testcase:

#define _GNU_SOURCE
#include <stdio.h>
#include <pthread.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#define NR_THREADS 64
#define BUFSIZE (64 * 1024)

#define DEVICE "/dev/mapper/XXXXXX"

#define ALIGN(VAL, SIZE) (((VAL)+(SIZE)-1) & ~((SIZE)-1))

static int fd;

static void *doit(void *arg)
{
	unsigned long offset = (long)arg;
	char *b, *buf;

	b = malloc(BUFSIZE + 1024);
	buf = (char *)ALIGN((unsigned long)b, 1024);
	memset(buf, 0, BUFSIZE);

	while (1)
		pwrite(fd, buf, BUFSIZE, offset);
}

int main(int argc, char *argv[])
{
	int flags = O_RDWR|O_DIRECT;
	int i;
	unsigned long offset = 0;

	if (argc > 1 && !strcmp(argv[1], "O_SYNC"))
		flags |= O_SYNC;

	fd = open(DEVICE, flags);
	if (fd == -1) {
		perror("open");
		exit(1);
	}

	for (i = 0; i < NR_THREADS-1; i++) {
		pthread_t tid;
		pthread_create(&tid, NULL, doit, (void *)offset);
		offset += BUFSIZE;
	}
	doit((void *)offset);

	return 0;
}

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/block_dev.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 2a6d0193f1397..6dcee88c2e5d2 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -406,16 +406,23 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin)
  
 int blkdev_fsync(struct file *filp, struct dentry *dentry, int datasync)
 {
-	struct block_device *bdev = I_BDEV(filp->f_mapping->host);
+	struct inode *bd_inode = filp->f_mapping->host;
+	struct block_device *bdev = I_BDEV(bd_inode);
 	int error;
 
-	error = sync_blockdev(bdev);
-	if (error)
-		return error;
-	
+	/*
+	 * There is no need to serialise calls to blkdev_issue_flush with
+	 * i_mutex and doing so causes performance issues with concurrent
+	 * O_SYNC writers to a block device.
+	 */
+	mutex_unlock(&bd_inode->i_mutex);
+
 	error = blkdev_issue_flush(bdev, NULL);
 	if (error == -EOPNOTSUPP)
 		error = 0;
+
+	mutex_lock(&bd_inode->i_mutex);
+
 	return error;
 }
 EXPORT_SYMBOL(blkdev_fsync);

From 453dc65931915abc61f92e12bba1fc4747ff5542 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dtor@vmware.com>
Date: Fri, 23 Apr 2010 13:18:08 -0400
Subject: [PATCH 404/464] VMware Balloon driver

This is a standalone version of VMware Balloon driver.  Ballooning is a
technique that allows hypervisor dynamically limit the amount of memory
available to the guest (with guest cooperation).  In the overcommit
scenario, when hypervisor set detects that it needs to shuffle some
memory, it instructs the driver to allocate certain number of pages, and
the underlying memory gets returned to the hypervisor.  Later hypervisor
may return memory to the guest by reattaching memory to the pageframes and
instructing the driver to "deflate" balloon.

We are submitting a standalone driver because KVM maintainer (Avi Kivity)
expressed opinion (rightly) that our transport does not fit well into
virtqueue paradigm and thus it does not make much sense to integrate with
virtio.

There were also some concerns whether current ballooning technique is the
right thing.  If there appears a better framework to achieve this we are
prepared to evaluate and switch to using it, but in the meantime we'd like
to get this driver upstream.

We want to get the driver accepted in distributions so that users do not
have to deal with an out-of-tree module and many distributions have
"upstream first" requirement.

The driver has been shipping for a number of years and users running on
VMware platform will have it installed as part of VMware Tools even if it
will not come from a distribution, thus there should not be additional
risk in pulling the driver into mainline.  The driver will only activate
if host is VMware so everyone else should not be affected at all.

Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/kernel/cpu/vmware.c  |   2 +
 drivers/misc/Kconfig          |  16 +
 drivers/misc/Makefile         |   1 +
 drivers/misc/vmware_balloon.c | 832 ++++++++++++++++++++++++++++++++++
 4 files changed, 851 insertions(+)
 create mode 100644 drivers/misc/vmware_balloon.c

diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index 1cbed97b59cf8..dfdb4dba23201 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -22,6 +22,7 @@
  */
 
 #include <linux/dmi.h>
+#include <linux/module.h>
 #include <asm/div64.h>
 #include <asm/vmware.h>
 #include <asm/x86_init.h>
@@ -101,6 +102,7 @@ int vmware_platform(void)
 
 	return 0;
 }
+EXPORT_SYMBOL(vmware_platform);
 
 /*
  * VMware hypervisor takes care of exporting a reliable TSC to the guest.
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2191c8d896a0c..0d0d625fece28 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -311,6 +311,22 @@ config TI_DAC7512
 	  This driver can also be built as a module. If so, the module
 	  will be calles ti_dac7512.
 
+config VMWARE_BALLOON
+	tristate "VMware Balloon Driver"
+	depends on X86
+	help
+	  This is VMware physical memory management driver which acts
+	  like a "balloon" that can be inflated to reclaim physical pages
+	  by reserving them in the guest and invalidating them in the
+	  monitor, freeing up the underlying machine pages so they can
+	  be allocated to other guests. The balloon can also be deflated
+	  to allow the guest to use more physical memory.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called vmware_balloon.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 27c484355414c..7b6f7eefdf8d5 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -29,3 +29,4 @@ obj-$(CONFIG_C2PORT)		+= c2port/
 obj-$(CONFIG_IWMC3200TOP)      += iwmc3200top/
 obj-y				+= eeprom/
 obj-y				+= cb710/
+obj-$(CONFIG_VMWARE_BALLOON)	+= vmware_balloon.o
diff --git a/drivers/misc/vmware_balloon.c b/drivers/misc/vmware_balloon.c
new file mode 100644
index 0000000000000..e7161c4e37989
--- /dev/null
+++ b/drivers/misc/vmware_balloon.c
@@ -0,0 +1,832 @@
+/*
+ * VMware Balloon driver.
+ *
+ * Copyright (C) 2000-2010, VMware, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License and no later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Maintained by: Dmitry Torokhov <dtor@vmware.com>
+ */
+
+/*
+ * This is VMware physical memory management driver for Linux. The driver
+ * acts like a "balloon" that can be inflated to reclaim physical pages by
+ * reserving them in the guest and invalidating them in the monitor,
+ * freeing up the underlying machine pages so they can be allocated to
+ * other guests.  The balloon can also be deflated to allow the guest to
+ * use more physical memory. Higher level policies can control the sizes
+ * of balloons in VMs in order to manage physical memory resources.
+ */
+
+//#define DEBUG
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/workqueue.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <asm/vmware.h>
+
+MODULE_AUTHOR("VMware, Inc.");
+MODULE_DESCRIPTION("VMware Memory Control (Balloon) Driver");
+MODULE_VERSION("1.2.1.0-K");
+MODULE_ALIAS("dmi:*:svnVMware*:*");
+MODULE_ALIAS("vmware_vmmemctl");
+MODULE_LICENSE("GPL");
+
+/*
+ * Various constants controlling rate of inflaint/deflating balloon,
+ * measured in pages.
+ */
+
+/*
+ * Rate of allocating memory when there is no memory pressure
+ * (driver performs non-sleeping allocations).
+ */
+#define VMW_BALLOON_NOSLEEP_ALLOC_MAX	16384U
+
+/*
+ * Rates of memory allocaton when guest experiences memory pressure
+ * (driver performs sleeping allocations).
+ */
+#define VMW_BALLOON_RATE_ALLOC_MIN	512U
+#define VMW_BALLOON_RATE_ALLOC_MAX	2048U
+#define VMW_BALLOON_RATE_ALLOC_INC	16U
+
+/*
+ * Rates for releasing pages while deflating balloon.
+ */
+#define VMW_BALLOON_RATE_FREE_MIN	512U
+#define VMW_BALLOON_RATE_FREE_MAX	16384U
+#define VMW_BALLOON_RATE_FREE_INC	16U
+
+/*
+ * When guest is under memory pressure, use a reduced page allocation
+ * rate for next several cycles.
+ */
+#define VMW_BALLOON_SLOW_CYCLES		4
+
+/*
+ * Use __GFP_HIGHMEM to allow pages from HIGHMEM zone. We don't
+ * allow wait (__GFP_WAIT) for NOSLEEP page allocations. Use
+ * __GFP_NOWARN, to suppress page allocation failure warnings.
+ */
+#define VMW_PAGE_ALLOC_NOSLEEP		(__GFP_HIGHMEM|__GFP_NOWARN)
+
+/*
+ * Use GFP_HIGHUSER when executing in a separate kernel thread
+ * context and allocation can sleep.  This is less stressful to
+ * the guest memory system, since it allows the thread to block
+ * while memory is reclaimed, and won't take pages from emergency
+ * low-memory pools.
+ */
+#define VMW_PAGE_ALLOC_CANSLEEP		(GFP_HIGHUSER)
+
+/* Maximum number of page allocations without yielding processor */
+#define VMW_BALLOON_YIELD_THRESHOLD	1024
+
+
+/*
+ * Hypervisor communication port definitions.
+ */
+#define VMW_BALLOON_HV_PORT		0x5670
+#define VMW_BALLOON_HV_MAGIC		0x456c6d6f
+#define VMW_BALLOON_PROTOCOL_VERSION	2
+#define VMW_BALLOON_GUEST_ID		1	/* Linux */
+
+#define VMW_BALLOON_CMD_START		0
+#define VMW_BALLOON_CMD_GET_TARGET	1
+#define VMW_BALLOON_CMD_LOCK		2
+#define VMW_BALLOON_CMD_UNLOCK		3
+#define VMW_BALLOON_CMD_GUEST_ID	4
+
+/* error codes */
+#define VMW_BALLOON_SUCCESS		0
+#define VMW_BALLOON_FAILURE		-1
+#define VMW_BALLOON_ERROR_CMD_INVALID	1
+#define VMW_BALLOON_ERROR_PPN_INVALID	2
+#define VMW_BALLOON_ERROR_PPN_LOCKED	3
+#define VMW_BALLOON_ERROR_PPN_UNLOCKED	4
+#define VMW_BALLOON_ERROR_PPN_PINNED	5
+#define VMW_BALLOON_ERROR_PPN_NOTNEEDED	6
+#define VMW_BALLOON_ERROR_RESET		7
+#define VMW_BALLOON_ERROR_BUSY		8
+
+#define VMWARE_BALLOON_CMD(cmd, data, result)		\
+({							\
+	unsigned long __stat, __dummy1, __dummy2;	\
+	__asm__ __volatile__ ("inl (%%dx)" :		\
+		"=a"(__stat),				\
+		"=c"(__dummy1),				\
+		"=d"(__dummy2),				\
+		"=b"(result) :				\
+		"0"(VMW_BALLOON_HV_MAGIC),		\
+		"1"(VMW_BALLOON_CMD_##cmd),		\
+		"2"(VMW_BALLOON_HV_PORT),		\
+		"3"(data) :				\
+		"memory");				\
+	result &= -1UL;					\
+	__stat & -1UL;					\
+})
+
+#ifdef CONFIG_DEBUG_FS
+struct vmballoon_stats {
+	unsigned int timer;
+
+	/* allocation statustics */
+	unsigned int alloc;
+	unsigned int alloc_fail;
+	unsigned int sleep_alloc;
+	unsigned int sleep_alloc_fail;
+	unsigned int refused_alloc;
+	unsigned int refused_free;
+	unsigned int free;
+
+	/* monitor operations */
+	unsigned int lock;
+	unsigned int lock_fail;
+	unsigned int unlock;
+	unsigned int unlock_fail;
+	unsigned int target;
+	unsigned int target_fail;
+	unsigned int start;
+	unsigned int start_fail;
+	unsigned int guest_type;
+	unsigned int guest_type_fail;
+};
+
+#define STATS_INC(stat) (stat)++
+#else
+#define STATS_INC(stat)
+#endif
+
+struct vmballoon {
+
+	/* list of reserved physical pages */
+	struct list_head pages;
+
+	/* transient list of non-balloonable pages */
+	struct list_head refused_pages;
+
+	/* balloon size in pages */
+	unsigned int size;
+	unsigned int target;
+
+	/* reset flag */
+	bool reset_required;
+
+	/* adjustment rates (pages per second) */
+	unsigned int rate_alloc;
+	unsigned int rate_free;
+
+	/* slowdown page allocations for next few cycles */
+	unsigned int slow_allocation_cycles;
+
+#ifdef CONFIG_DEBUG_FS
+	/* statistics */
+	struct vmballoon_stats stats;
+
+	/* debugfs file exporting statistics */
+	struct dentry *dbg_entry;
+#endif
+
+	struct sysinfo sysinfo;
+
+	struct delayed_work dwork;
+};
+
+static struct vmballoon balloon;
+static struct workqueue_struct *vmballoon_wq;
+
+/*
+ * Send "start" command to the host, communicating supported version
+ * of the protocol.
+ */
+static bool vmballoon_send_start(struct vmballoon *b)
+{
+	unsigned long status, dummy;
+
+	STATS_INC(b->stats.start);
+
+	status = VMWARE_BALLOON_CMD(START, VMW_BALLOON_PROTOCOL_VERSION, dummy);
+	if (status == VMW_BALLOON_SUCCESS)
+		return true;
+
+	pr_debug("%s - failed, hv returns %ld\n", __func__, status);
+	STATS_INC(b->stats.start_fail);
+	return false;
+}
+
+static bool vmballoon_check_status(struct vmballoon *b, unsigned long status)
+{
+	switch (status) {
+	case VMW_BALLOON_SUCCESS:
+		return true;
+
+	case VMW_BALLOON_ERROR_RESET:
+		b->reset_required = true;
+		/* fall through */
+
+	default:
+		return false;
+	}
+}
+
+/*
+ * Communicate guest type to the host so that it can adjust ballooning
+ * algorithm to the one most appropriate for the guest. This command
+ * is normally issued after sending "start" command and is part of
+ * standard reset sequence.
+ */
+static bool vmballoon_send_guest_id(struct vmballoon *b)
+{
+	unsigned long status, dummy;
+
+	status = VMWARE_BALLOON_CMD(GUEST_ID, VMW_BALLOON_GUEST_ID, dummy);
+
+	STATS_INC(b->stats.guest_type);
+
+	if (vmballoon_check_status(b, status))
+		return true;
+
+	pr_debug("%s - failed, hv returns %ld\n", __func__, status);
+	STATS_INC(b->stats.guest_type_fail);
+	return false;
+}
+
+/*
+ * Retrieve desired balloon size from the host.
+ */
+static bool vmballoon_send_get_target(struct vmballoon *b, u32 *new_target)
+{
+	unsigned long status;
+	unsigned long target;
+	unsigned long limit;
+	u32 limit32;
+
+	/*
+	 * si_meminfo() is cheap. Moreover, we want to provide dynamic
+	 * max balloon size later. So let us call si_meminfo() every
+	 * iteration.
+	 */
+	si_meminfo(&b->sysinfo);
+	limit = b->sysinfo.totalram;
+
+	/* Ensure limit fits in 32-bits */
+	limit32 = (u32)limit;
+	if (limit != limit32)
+		return false;
+
+	/* update stats */
+	STATS_INC(b->stats.target);
+
+	status = VMWARE_BALLOON_CMD(GET_TARGET, limit, target);
+	if (vmballoon_check_status(b, status)) {
+		*new_target = target;
+		return true;
+	}
+
+	pr_debug("%s - failed, hv returns %ld\n", __func__, status);
+	STATS_INC(b->stats.target_fail);
+	return false;
+}
+
+/*
+ * Notify the host about allocated page so that host can use it without
+ * fear that guest will need it. Host may reject some pages, we need to
+ * check the return value and maybe submit a different page.
+ */
+static bool vmballoon_send_lock_page(struct vmballoon *b, unsigned long pfn)
+{
+	unsigned long status, dummy;
+	u32 pfn32;
+
+	pfn32 = (u32)pfn;
+	if (pfn32 != pfn)
+		return false;
+
+	STATS_INC(b->stats.lock);
+
+	status = VMWARE_BALLOON_CMD(LOCK, pfn, dummy);
+	if (vmballoon_check_status(b, status))
+		return true;
+
+	pr_debug("%s - ppn %lx, hv returns %ld\n", __func__, pfn, status);
+	STATS_INC(b->stats.lock_fail);
+	return false;
+}
+
+/*
+ * Notify the host that guest intends to release given page back into
+ * the pool of available (to the guest) pages.
+ */
+static bool vmballoon_send_unlock_page(struct vmballoon *b, unsigned long pfn)
+{
+	unsigned long status, dummy;
+	u32 pfn32;
+
+	pfn32 = (u32)pfn;
+	if (pfn32 != pfn)
+		return false;
+
+	STATS_INC(b->stats.unlock);
+
+	status = VMWARE_BALLOON_CMD(UNLOCK, pfn, dummy);
+	if (vmballoon_check_status(b, status))
+		return true;
+
+	pr_debug("%s - ppn %lx, hv returns %ld\n", __func__, pfn, status);
+	STATS_INC(b->stats.unlock_fail);
+	return false;
+}
+
+/*
+ * Quickly release all pages allocated for the balloon. This function is
+ * called when host decides to "reset" balloon for one reason or another.
+ * Unlike normal "deflate" we do not (shall not) notify host of the pages
+ * being released.
+ */
+static void vmballoon_pop(struct vmballoon *b)
+{
+	struct page *page, *next;
+	unsigned int count = 0;
+
+	list_for_each_entry_safe(page, next, &b->pages, lru) {
+		list_del(&page->lru);
+		__free_page(page);
+		STATS_INC(b->stats.free);
+		b->size--;
+
+		if (++count >= b->rate_free) {
+			count = 0;
+			cond_resched();
+		}
+	}
+}
+
+/*
+ * Perform standard reset sequence by popping the balloon (in case it
+ * is not  empty) and then restarting protocol. This operation normally
+ * happens when host responds with VMW_BALLOON_ERROR_RESET to a command.
+ */
+static void vmballoon_reset(struct vmballoon *b)
+{
+	/* free all pages, skipping monitor unlock */
+	vmballoon_pop(b);
+
+	if (vmballoon_send_start(b)) {
+		b->reset_required = false;
+		if (!vmballoon_send_guest_id(b))
+			pr_err("failed to send guest ID to the host\n");
+	}
+}
+
+/*
+ * Allocate (or reserve) a page for the balloon and notify the host.  If host
+ * refuses the page put it on "refuse" list and allocate another one until host
+ * is satisfied. "Refused" pages are released at the end of inflation cycle
+ * (when we allocate b->rate_alloc pages).
+ */
+static int vmballoon_reserve_page(struct vmballoon *b, bool can_sleep)
+{
+	struct page *page;
+	gfp_t flags;
+	bool locked = false;
+
+	do {
+		if (!can_sleep)
+			STATS_INC(b->stats.alloc);
+		else
+			STATS_INC(b->stats.sleep_alloc);
+
+		flags = can_sleep ? VMW_PAGE_ALLOC_CANSLEEP : VMW_PAGE_ALLOC_NOSLEEP;
+		page = alloc_page(flags);
+		if (!page) {
+			if (!can_sleep)
+				STATS_INC(b->stats.alloc_fail);
+			else
+				STATS_INC(b->stats.sleep_alloc_fail);
+			return -ENOMEM;
+		}
+
+		/* inform monitor */
+		locked = vmballoon_send_lock_page(b, page_to_pfn(page));
+		if (!locked) {
+			if (b->reset_required) {
+				__free_page(page);
+				return -EIO;
+			}
+
+			/* place on list of non-balloonable pages, retry allocation */
+			list_add(&page->lru, &b->refused_pages);
+			STATS_INC(b->stats.refused_alloc);
+		}
+	} while (!locked);
+
+	/* track allocated page */
+	list_add(&page->lru, &b->pages);
+
+	/* update balloon size */
+	b->size++;
+
+	return 0;
+}
+
+/*
+ * Release the page allocated for the balloon. Note that we first notify
+ * the host so it can make sure the page will be available for the guest
+ * to use, if needed.
+ */
+static int vmballoon_release_page(struct vmballoon *b, struct page *page)
+{
+	if (!vmballoon_send_unlock_page(b, page_to_pfn(page)))
+		return -EIO;
+
+	list_del(&page->lru);
+
+	/* deallocate page */
+	__free_page(page);
+	STATS_INC(b->stats.free);
+
+	/* update balloon size */
+	b->size--;
+
+	return 0;
+}
+
+/*
+ * Release pages that were allocated while attempting to inflate the
+ * balloon but were refused by the host for one reason or another.
+ */
+static void vmballoon_release_refused_pages(struct vmballoon *b)
+{
+	struct page *page, *next;
+
+	list_for_each_entry_safe(page, next, &b->refused_pages, lru) {
+		list_del(&page->lru);
+		__free_page(page);
+		STATS_INC(b->stats.refused_free);
+	}
+}
+
+/*
+ * Inflate the balloon towards its target size. Note that we try to limit
+ * the rate of allocation to make sure we are not choking the rest of the
+ * system.
+ */
+static void vmballoon_inflate(struct vmballoon *b)
+{
+	unsigned int goal;
+	unsigned int rate;
+	unsigned int i;
+	unsigned int allocations = 0;
+	int error = 0;
+	bool alloc_can_sleep = false;
+
+	pr_debug("%s - size: %d, target %d\n", __func__, b->size, b->target);
+
+	/*
+	 * First try NOSLEEP page allocations to inflate balloon.
+	 *
+	 * If we do not throttle nosleep allocations, we can drain all
+	 * free pages in the guest quickly (if the balloon target is high).
+	 * As a side-effect, draining free pages helps to inform (force)
+	 * the guest to start swapping if balloon target is not met yet,
+	 * which is a desired behavior. However, balloon driver can consume
+	 * all available CPU cycles if too many pages are allocated in a
+	 * second. Therefore, we throttle nosleep allocations even when
+	 * the guest is not under memory pressure. OTOH, if we have already
+	 * predicted that the guest is under memory pressure, then we
+	 * slowdown page allocations considerably.
+	 */
+
+	goal = b->target - b->size;
+	/*
+	 * Start with no sleep allocation rate which may be higher
+	 * than sleeping allocation rate.
+	 */
+	rate = b->slow_allocation_cycles ?
+			b->rate_alloc : VMW_BALLOON_NOSLEEP_ALLOC_MAX;
+
+	pr_debug("%s - goal: %d, no-sleep rate: %d, sleep rate: %d\n",
+		 __func__, goal, rate, b->rate_alloc);
+
+	for (i = 0; i < goal; i++) {
+
+		error = vmballoon_reserve_page(b, alloc_can_sleep);
+		if (error) {
+			if (error != -ENOMEM) {
+				/*
+				 * Not a page allocation failure, stop this
+				 * cycle. Maybe we'll get new target from
+				 * the host soon.
+				 */
+				break;
+			}
+
+			if (alloc_can_sleep) {
+				/*
+				 * CANSLEEP page allocation failed, so guest
+				 * is under severe memory pressure. Quickly
+				 * decrease allocation rate.
+				 */
+				b->rate_alloc = max(b->rate_alloc / 2,
+						    VMW_BALLOON_RATE_ALLOC_MIN);
+				break;
+			}
+
+			/*
+			 * NOSLEEP page allocation failed, so the guest is
+			 * under memory pressure. Let us slow down page
+			 * allocations for next few cycles so that the guest
+			 * gets out of memory pressure. Also, if we already
+			 * allocated b->rate_alloc pages, let's pause,
+			 * otherwise switch to sleeping allocations.
+			 */
+			b->slow_allocation_cycles = VMW_BALLOON_SLOW_CYCLES;
+
+			if (i >= b->rate_alloc)
+				break;
+
+			alloc_can_sleep = true;
+			/* Lower rate for sleeping allocations. */
+			rate = b->rate_alloc;
+		}
+
+		if (++allocations > VMW_BALLOON_YIELD_THRESHOLD) {
+			cond_resched();
+			allocations = 0;
+		}
+
+		if (i >= rate) {
+			/* We allocated enough pages, let's take a break. */
+			break;
+		}
+	}
+
+	/*
+	 * We reached our goal without failures so try increasing
+	 * allocation rate.
+	 */
+	if (error == 0 && i >= b->rate_alloc) {
+		unsigned int mult = i / b->rate_alloc;
+
+		b->rate_alloc =
+			min(b->rate_alloc + mult * VMW_BALLOON_RATE_ALLOC_INC,
+			    VMW_BALLOON_RATE_ALLOC_MAX);
+	}
+
+	vmballoon_release_refused_pages(b);
+}
+
+/*
+ * Decrease the size of the balloon allowing guest to use more memory.
+ */
+static void vmballoon_deflate(struct vmballoon *b)
+{
+	struct page *page, *next;
+	unsigned int i = 0;
+	unsigned int goal;
+	int error;
+
+	pr_debug("%s - size: %d, target %d\n", __func__, b->size, b->target);
+
+	/* limit deallocation rate */
+	goal = min(b->size - b->target, b->rate_free);
+
+	pr_debug("%s - goal: %d, rate: %d\n", __func__, goal, b->rate_free);
+
+	/* free pages to reach target */
+	list_for_each_entry_safe(page, next, &b->pages, lru) {
+		error = vmballoon_release_page(b, page);
+		if (error) {
+			/* quickly decrease rate in case of error */
+			b->rate_free = max(b->rate_free / 2,
+					   VMW_BALLOON_RATE_FREE_MIN);
+			return;
+		}
+
+		if (++i >= goal)
+			break;
+	}
+
+	/* slowly increase rate if there were no errors */
+	b->rate_free = min(b->rate_free + VMW_BALLOON_RATE_FREE_INC,
+			   VMW_BALLOON_RATE_FREE_MAX);
+}
+
+/*
+ * Balloon work function: reset protocol, if needed, get the new size and
+ * adjust balloon as needed. Repeat in 1 sec.
+ */
+static void vmballoon_work(struct work_struct *work)
+{
+	struct delayed_work *dwork = to_delayed_work(work);
+	struct vmballoon *b = container_of(dwork, struct vmballoon, dwork);
+	unsigned int target;
+
+	STATS_INC(b->stats.timer);
+
+	if (b->reset_required)
+		vmballoon_reset(b);
+
+	if (b->slow_allocation_cycles > 0)
+		b->slow_allocation_cycles--;
+
+	if (vmballoon_send_get_target(b, &target)) {
+		/* update target, adjust size */
+		b->target = target;
+
+		if (b->size < target)
+			vmballoon_inflate(b);
+		else if (b->size > target)
+			vmballoon_deflate(b);
+	}
+
+	queue_delayed_work(vmballoon_wq, dwork, round_jiffies_relative(HZ));
+}
+
+/*
+ * DEBUGFS Interface
+ */
+#ifdef CONFIG_DEBUG_FS
+
+static int vmballoon_debug_show(struct seq_file *f, void *offset)
+{
+	struct vmballoon *b = f->private;
+	struct vmballoon_stats *stats = &b->stats;
+
+	/* format size info */
+	seq_printf(f,
+		   "target:             %8d pages\n"
+		   "current:            %8d pages\n",
+		   b->target, b->size);
+
+	/* format rate info */
+	seq_printf(f,
+		   "rateNoSleepAlloc:   %8d pages/sec\n"
+		   "rateSleepAlloc:     %8d pages/sec\n"
+		   "rateFree:           %8d pages/sec\n",
+		   VMW_BALLOON_NOSLEEP_ALLOC_MAX,
+		   b->rate_alloc, b->rate_free);
+
+	seq_printf(f,
+		   "\n"
+		   "timer:              %8u\n"
+		   "start:              %8u (%4u failed)\n"
+		   "guestType:          %8u (%4u failed)\n"
+		   "lock:               %8u (%4u failed)\n"
+		   "unlock:             %8u (%4u failed)\n"
+		   "target:             %8u (%4u failed)\n"
+		   "primNoSleepAlloc:   %8u (%4u failed)\n"
+		   "primCanSleepAlloc:  %8u (%4u failed)\n"
+		   "primFree:           %8u\n"
+		   "errAlloc:           %8u\n"
+		   "errFree:            %8u\n",
+		   stats->timer,
+		   stats->start, stats->start_fail,
+		   stats->guest_type, stats->guest_type_fail,
+		   stats->lock,  stats->lock_fail,
+		   stats->unlock, stats->unlock_fail,
+		   stats->target, stats->target_fail,
+		   stats->alloc, stats->alloc_fail,
+		   stats->sleep_alloc, stats->sleep_alloc_fail,
+		   stats->free,
+		   stats->refused_alloc, stats->refused_free);
+
+	return 0;
+}
+
+static int vmballoon_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, vmballoon_debug_show, inode->i_private);
+}
+
+static const struct file_operations vmballoon_debug_fops = {
+	.owner		= THIS_MODULE,
+	.open		= vmballoon_debug_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int __init vmballoon_debugfs_init(struct vmballoon *b)
+{
+	int error;
+
+	b->dbg_entry = debugfs_create_file("vmmemctl", S_IRUGO, NULL, b,
+					   &vmballoon_debug_fops);
+	if (IS_ERR(b->dbg_entry)) {
+		error = PTR_ERR(b->dbg_entry);
+		pr_err("failed to create debugfs entry, error: %d\n", error);
+		return error;
+	}
+
+	return 0;
+}
+
+static void __exit vmballoon_debugfs_exit(struct vmballoon *b)
+{
+	debugfs_remove(b->dbg_entry);
+}
+
+#else
+
+static inline int vmballoon_debugfs_init(struct vmballoon *b)
+{
+	return 0;
+}
+
+static inline void vmballoon_debugfs_exit(struct vmballoon *b)
+{
+}
+
+#endif	/* CONFIG_DEBUG_FS */
+
+static int __init vmballoon_init(void)
+{
+	int error;
+
+	/*
+	 * Check if we are running on VMware's hypervisor and bail out
+	 * if we are not.
+	 */
+	if (!vmware_platform())
+		return -ENODEV;
+
+	vmballoon_wq = create_freezeable_workqueue("vmmemctl");
+	if (!vmballoon_wq) {
+		pr_err("failed to create workqueue\n");
+		return -ENOMEM;
+	}
+
+	INIT_LIST_HEAD(&balloon.pages);
+	INIT_LIST_HEAD(&balloon.refused_pages);
+
+	/* initialize rates */
+	balloon.rate_alloc = VMW_BALLOON_RATE_ALLOC_MAX;
+	balloon.rate_free = VMW_BALLOON_RATE_FREE_MAX;
+
+	INIT_DELAYED_WORK(&balloon.dwork, vmballoon_work);
+
+	/*
+	 * Start balloon.
+	 */
+	if (!vmballoon_send_start(&balloon)) {
+		pr_err("failed to send start command to the host\n");
+		error = -EIO;
+		goto fail;
+	}
+
+	if (!vmballoon_send_guest_id(&balloon)) {
+		pr_err("failed to send guest ID to the host\n");
+		error = -EIO;
+		goto fail;
+	}
+
+	error = vmballoon_debugfs_init(&balloon);
+	if (error)
+		goto fail;
+
+	queue_delayed_work(vmballoon_wq, &balloon.dwork, 0);
+
+	return 0;
+
+fail:
+	destroy_workqueue(vmballoon_wq);
+	return error;
+}
+module_init(vmballoon_init);
+
+static void __exit vmballoon_exit(void)
+{
+	cancel_delayed_work_sync(&balloon.dwork);
+	destroy_workqueue(vmballoon_wq);
+
+	vmballoon_debugfs_exit(&balloon);
+
+	/*
+	 * Deallocate all reserved memory, and reset connection with monitor.
+	 * Reset connection before deallocating memory to avoid potential for
+	 * additional spurious resets from guest touching deallocated pages.
+	 */
+	vmballoon_send_start(&balloon);
+	vmballoon_pop(&balloon);
+}
+module_exit(vmballoon_exit);

From 22eccdd7d2d94be48ae9b01fef5f52ccbb81dcd5 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Fri, 23 Apr 2010 13:18:10 -0400
Subject: [PATCH 405/464] ksm: check for ERR_PTR from follow_page()

The follow_page() function can potentially return -EFAULT so I added
checks for this.

Also I silenced an uninitialized variable warning on my version of gcc
(version 4.3.2).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Izik Eidus <ieidus@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/ksm.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 8cdfc2a1e8bff..956880f2ff492 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -365,7 +365,7 @@ static int break_ksm(struct vm_area_struct *vma, unsigned long addr)
 	do {
 		cond_resched();
 		page = follow_page(vma, addr, FOLL_GET);
-		if (!page)
+		if (IS_ERR_OR_NULL(page))
 			break;
 		if (PageKsm(page))
 			ret = handle_mm_fault(vma->vm_mm, vma, addr,
@@ -447,7 +447,7 @@ static struct page *get_mergeable_page(struct rmap_item *rmap_item)
 		goto out;
 
 	page = follow_page(vma, addr, FOLL_GET);
-	if (!page)
+	if (IS_ERR_OR_NULL(page))
 		goto out;
 	if (PageAnon(page)) {
 		flush_anon_page(vma, page, addr);
@@ -1086,7 +1086,7 @@ struct rmap_item *unstable_tree_search_insert(struct rmap_item *rmap_item,
 		cond_resched();
 		tree_rmap_item = rb_entry(*new, struct rmap_item, node);
 		tree_page = get_mergeable_page(tree_rmap_item);
-		if (!tree_page)
+		if (IS_ERR_OR_NULL(tree_page))
 			return NULL;
 
 		/*
@@ -1294,7 +1294,7 @@ static struct rmap_item *scan_get_next_rmap_item(struct page **page)
 			if (ksm_test_exit(mm))
 				break;
 			*page = follow_page(vma, ksm_scan.address, FOLL_GET);
-			if (*page && PageAnon(*page)) {
+			if (!IS_ERR_OR_NULL(*page) && PageAnon(*page)) {
 				flush_anon_page(vma, *page, ksm_scan.address);
 				flush_dcache_page(*page);
 				rmap_item = get_next_rmap_item(slot,
@@ -1308,7 +1308,7 @@ static struct rmap_item *scan_get_next_rmap_item(struct page **page)
 				up_read(&mm->mmap_sem);
 				return rmap_item;
 			}
-			if (*page)
+			if (!IS_ERR_OR_NULL(*page))
 				put_page(*page);
 			ksm_scan.address += PAGE_SIZE;
 			cond_resched();
@@ -1367,7 +1367,7 @@ static struct rmap_item *scan_get_next_rmap_item(struct page **page)
 static void ksm_do_scan(unsigned int scan_npages)
 {
 	struct rmap_item *rmap_item;
-	struct page *page;
+	struct page *uninitialized_var(page);
 
 	while (scan_npages--) {
 		cond_resched();

From df37bd156dcb4f5441beaf5bde444adac974e9a0 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@lougher.demon.co.uk>
Date: Fri, 23 Apr 2010 13:18:11 -0400
Subject: [PATCH 406/464] initramfs: handle unrecognised decompressor when
 unpacking

The unpack routine fails to handle the decompress_method() returning
unrecognised decompressor (compress_name == NULL).  This results in the
routine looping eventually oopsing on an out of bounds memory access.

Note this bug is usually hidden, only triggering on trailing junk after
one or more correct compressed blocks.  The case of the compressed archive
being complete junk is (by accident?) caught by the if (state != Reset)
check because state is initialised to Start, but not updated due to the
decompressor not having been called.  Obviously if the junk is trailing a
correctly decompressed buffer, state == Reset from the previous call to
the decompressor.

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 init/initramfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/init/initramfs.c b/init/initramfs.c
index 37d3859b1b32e..4b9c20205092e 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -457,7 +457,8 @@ static char * __init unpack_to_rootfs(char *buf, unsigned len)
 					 compress_name);
 				message = msg_buf;
 			}
-		}
+		} else
+			error("junk in compressed archive");
 		if (state != Reset)
 			error("junk in compressed archive");
 		this_header = saved_offset + my_inptr;

From 1cb08e97389bb603e1b999312d9686c8faf0187a Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@lougher.demon.co.uk>
Date: Fri, 16 Apr 2010 01:01:36 +0100
Subject: [PATCH 407/464] squashfs: fix warn_on when root inode is corrupted

Fix warn_on triggered by mounting a fsfuzzer corrupted file system, where
the root inode has been corrupted.

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Reported-by: Steve Grubb <sgrubb@redhat.com>
---
 fs/squashfs/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 3550aec2f655c..07ceeb8d8f539 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -275,7 +275,8 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	err = squashfs_read_inode(root, root_inode);
 	if (err) {
-		iget_failed(root);
+		make_bad_inode(root);
+		iput(root);
 		goto failed_mount;
 	}
 	insert_inode_hash(root);

From 370ec3d1ed9d76ba992e5b9b7d7d10700014d436 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@lougher.demon.co.uk>
Date: Fri, 23 Apr 2010 00:24:22 +0100
Subject: [PATCH 408/464] squashfs: add missing buffer free

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
---
 fs/squashfs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 07ceeb8d8f539..48b6f4a385a60 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -354,6 +354,7 @@ static void squashfs_put_super(struct super_block *sb)
 		kfree(sbi->id_table);
 		kfree(sbi->fragment_index);
 		kfree(sbi->meta_index);
+		kfree(sbi->inode_lookup_table);
 		kfree(sb->s_fs_info);
 		sb->s_fs_info = NULL;
 	}

From e0d1f70010dce062ccce1bbd940a661e60b82631 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@lougher.demon.co.uk>
Date: Fri, 23 Apr 2010 02:32:02 +0100
Subject: [PATCH 409/464] squashfs: fix potential buffer over-run on 4K block
 file systems

Sizing the buffer based on block size is incorrect, leading
to a potential buffer over-run on 4K block size file systems
(because the metadata block size is always 8K).  This bug
doesn't seem have triggered because 4K block size file systems
are not default, and also because metadata blocks after
compression tend to be less than 4K.

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
---
 fs/squashfs/block.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 1cb0d81b164b5..653c030eb840d 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -87,9 +87,8 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 	u64 cur_index = index >> msblk->devblksize_log2;
 	int bytes, compressed, b = 0, k = 0, page = 0, avail;
 
-
-	bh = kcalloc((msblk->block_size >> msblk->devblksize_log2) + 1,
-				sizeof(*bh), GFP_KERNEL);
+	bh = kcalloc(((srclength + msblk->devblksize - 1)
+		>> msblk->devblksize_log2) + 1, sizeof(*bh), GFP_KERNEL);
 	if (bh == NULL)
 		return -ENOMEM;
 

From 401da6aea31ef69c2fcd260382adabdcf7ce820a Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Sat, 24 Apr 2010 21:09:29 -0700
Subject: [PATCH 410/464] e100: Fix the TX workqueue race

Nothing stops the workqueue being left to run in parallel with close or a
few other operations. This causes double unmaps and the like.

See kerneloops.org #1041230 for an example

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/e100.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index b997e578e58f2..791080303db10 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -166,6 +166,7 @@
 #include <linux/ethtool.h>
 #include <linux/string.h>
 #include <linux/firmware.h>
+#include <linux/rtnetlink.h>
 #include <asm/unaligned.h>
 
 
@@ -2265,8 +2266,13 @@ static void e100_tx_timeout_task(struct work_struct *work)
 
 	DPRINTK(TX_ERR, DEBUG, "scb.status=0x%02X\n",
 		ioread8(&nic->csr->scb.status));
-	e100_down(netdev_priv(netdev));
-	e100_up(netdev_priv(netdev));
+
+	rtnl_lock();
+	if (netif_running(netdev)) {
+		e100_down(netdev_priv(netdev));
+		e100_up(netdev_priv(netdev));
+	}
+	rtnl_unlock();
 }
 
 static int e100_loopback_test(struct nic *nic, enum loopback loopback_mode)

From 5129a469a91a91427334c40e29e64c6d0ab68caf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn=20Engel?= <joern@logfs.org>
Date: Sun, 25 Apr 2010 08:54:42 +0200
Subject: [PATCH 411/464] Catch filesystems lacking s_bdi

noop_backing_dev_info is used only as a flag to mark filesystems that
don't have any backing store, like tmpfs, procfs, spufs, etc.

Signed-off-by: Joern Engel <joern@logfs.org>

Changed the BUG_ON() to a WARN_ON(). Note that adding dirty inodes
to the noop_backing_dev_info is not legal and will not result in
them being flushed, but we already catch this condition in
__mark_inode_dirty() when checking for a registered bdi.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/super.c                  | 8 +++++---
 fs/sync.c                   | 3 ++-
 include/linux/backing-dev.h | 1 +
 mm/backing-dev.c            | 5 +++++
 4 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/fs/super.c b/fs/super.c
index f35ac6022109d..dc72491a19f9c 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -693,6 +693,7 @@ int set_anon_super(struct super_block *s, void *data)
 		return -EMFILE;
 	}
 	s->s_dev = MKDEV(0, dev & MINORMASK);
+	s->s_bdi = &noop_backing_dev_info;
 	return 0;
 }
 
@@ -954,10 +955,11 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
 	if (error < 0)
 		goto out_free_secdata;
 	BUG_ON(!mnt->mnt_sb);
+	WARN_ON(!mnt->mnt_sb->s_bdi);
 
- 	error = security_sb_kern_mount(mnt->mnt_sb, flags, secdata);
- 	if (error)
- 		goto out_sb;
+	error = security_sb_kern_mount(mnt->mnt_sb, flags, secdata);
+	if (error)
+		goto out_sb;
 
 	/*
 	 * filesystems should never set s_maxbytes larger than MAX_LFS_FILESIZE
diff --git a/fs/sync.c b/fs/sync.c
index fc5c3d75cf3c7..92b228176f7cb 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -14,6 +14,7 @@
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
+#include <linux/backing-dev.h>
 #include "internal.h"
 
 #define VALID_FLAGS (SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE| \
@@ -32,7 +33,7 @@ static int __sync_filesystem(struct super_block *sb, int wait)
 	 * This should be safe, as we require bdi backing to actually
 	 * write out data in the first place
 	 */
-	if (!sb->s_bdi)
+	if (!sb->s_bdi || sb->s_bdi == &noop_backing_dev_info)
 		return 0;
 
 	if (sb->s_qcop && sb->s_qcop->quota_sync)
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index e19c677f219c1..bd0e3c6f323f3 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -247,6 +247,7 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
 #endif
 
 extern struct backing_dev_info default_backing_dev_info;
+extern struct backing_dev_info noop_backing_dev_info;
 void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page);
 
 int writeback_in_progress(struct backing_dev_info *bdi);
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index dbda4707f5936..707d0dc6da0f5 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -27,6 +27,11 @@ struct backing_dev_info default_backing_dev_info = {
 };
 EXPORT_SYMBOL_GPL(default_backing_dev_info);
 
+struct backing_dev_info noop_backing_dev_info = {
+	.name		= "noop",
+};
+EXPORT_SYMBOL_GPL(noop_backing_dev_info);
+
 static struct class *bdi_class;
 
 /*

From 6443bb1fc2050ca2b6585a3fa77f7833b55329ed Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 25 Apr 2010 15:09:42 -0700
Subject: [PATCH 412/464] ipv6: Fix inet6_csk_bind_conflict()

Commit fda48a0d7a84 (tcp: bind() fix when many ports are bound)
introduced a bug on IPV6 part.
We should not call ipv6_addr_any(inet6_rcv_saddr(sk2)) but
ipv6_addr_any(inet6_rcv_saddr(sk)) because sk2 can be IPV4, while sk is
IPV6.

Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/inet6_connection_sock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index b4b7d40a9c95a..3a4d92b5a83e5 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -48,7 +48,7 @@ int inet6_csk_bind_conflict(const struct sock *sk,
 			     ipv6_rcv_saddr_equal(sk, sk2))
 				break;
 			else if (sk->sk_reuse && sk2->sk_reuse &&
-				!ipv6_addr_any(inet6_rcv_saddr(sk2)) &&
+				!ipv6_addr_any(inet6_rcv_saddr(sk)) &&
 				ipv6_rcv_saddr_equal(sk, sk2))
 				break;
 		}

From 180ce7e81030e1ef763d58f97f9ab840ff57d848 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 26 Apr 2010 09:14:05 +0800
Subject: [PATCH 413/464] crypto: authenc - Add EINPROGRESS check

When Steffen originally wrote the authenc async hash patch, he
correctly had EINPROGRESS checks in place so that we did not invoke
the original completion handler with it.

Unfortuantely I told him to remove it before the patch was applied.

As only MAY_BACKLOG request completion handlers are required to
handle EINPROGRESS completions, those checks are really needed.

This patch restores them.

Reported-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/authenc.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/crypto/authenc.c b/crypto/authenc.c
index 2bb7348d8d554..05eb32e0d9495 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -46,6 +46,12 @@ struct authenc_request_ctx {
 	char tail[];
 };
 
+static void authenc_request_complete(struct aead_request *req, int err)
+{
+	if (err != -EINPROGRESS)
+		aead_request_complete(req, err);
+}
+
 static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
 				 unsigned int keylen)
 {
@@ -142,7 +148,7 @@ static void authenc_geniv_ahash_update_done(struct crypto_async_request *areq,
 				 crypto_aead_authsize(authenc), 1);
 
 out:
-	aead_request_complete(req, err);
+	authenc_request_complete(req, err);
 }
 
 static void authenc_geniv_ahash_done(struct crypto_async_request *areq, int err)
@@ -208,7 +214,7 @@ static void authenc_verify_ahash_update_done(struct crypto_async_request *areq,
 	err = crypto_ablkcipher_decrypt(abreq);
 
 out:
-	aead_request_complete(req, err);
+	authenc_request_complete(req, err);
 }
 
 static void authenc_verify_ahash_done(struct crypto_async_request *areq,
@@ -245,7 +251,7 @@ static void authenc_verify_ahash_done(struct crypto_async_request *areq,
 	err = crypto_ablkcipher_decrypt(abreq);
 
 out:
-	aead_request_complete(req, err);
+	authenc_request_complete(req, err);
 }
 
 static u8 *crypto_authenc_ahash_fb(struct aead_request *req, unsigned int flags)
@@ -379,7 +385,7 @@ static void crypto_authenc_encrypt_done(struct crypto_async_request *req,
 		err = crypto_authenc_genicv(areq, iv, 0);
 	}
 
-	aead_request_complete(areq, err);
+	authenc_request_complete(areq, err);
 }
 
 static int crypto_authenc_encrypt(struct aead_request *req)
@@ -420,7 +426,7 @@ static void crypto_authenc_givencrypt_done(struct crypto_async_request *req,
 		err = crypto_authenc_genicv(areq, greq->giv, 0);
 	}
 
-	aead_request_complete(areq, err);
+	authenc_request_complete(areq, err);
 }
 
 static int crypto_authenc_givencrypt(struct aead_givcrypt_request *req)

From e6d086d83cf7f102d48c006f58172a69ec0c15a4 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Mon, 26 Apr 2010 10:27:54 +0200
Subject: [PATCH 414/464] btrfs: convert to using bdi_setup_and_register()

It's now a provided helper, so get rid of the internal setup
and btrfs atomic_t bdi enumerator.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/btrfs/disk-io.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index e7b8f2c89ccb2..feca04197d028 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -44,8 +44,6 @@ static struct extent_io_ops btree_extent_io_ops;
 static void end_workqueue_fn(struct btrfs_work *work);
 static void free_fs_root(struct btrfs_root *root);
 
-static atomic_t btrfs_bdi_num = ATOMIC_INIT(0);
-
 /*
  * end_io_wq structs are used to do processing in task context when an IO is
  * complete.  This is used during reads to verify checksums, and it is used
@@ -1375,19 +1373,11 @@ static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi)
 {
 	int err;
 
-	bdi->name = "btrfs";
 	bdi->capabilities = BDI_CAP_MAP_COPY;
-	err = bdi_init(bdi);
+	err = bdi_setup_and_register(bdi, "btrfs", BDI_CAP_MAP_COPY);
 	if (err)
 		return err;
 
-	err = bdi_register(bdi, NULL, "btrfs-%d",
-				atomic_inc_return(&btrfs_bdi_num));
-	if (err) {
-		bdi_destroy(bdi);
-		return err;
-	}
-
 	bdi->ra_pages	= default_backing_dev_info.ra_pages;
 	bdi->unplug_io_fn	= btrfs_unplug_io_fn;
 	bdi->unplug_io_data	= info;

From dd77ef924c835c9813c3f4dc7e9c72e9cd88d238 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 20 Apr 2010 17:00:37 +1000
Subject: [PATCH 415/464] xfs: more swap extent fixes for dynamic fork offsets

A new xfsqa test (226) with a prototype xfs_fsr change to try to
handle dynamic fork offsets better triggers an assertion failure
where the inode data fork is in btree format, yet there is room in
the inode for it to be in extent format. The two inodes look like:

before: ino 0x101 (target), num_extents 11, Max in-fork extents 6, broot size 40, fork offset 96
before: ino 0x115 (temp),  num_extents 5, Max in-fork extents 3, broot size 40, fork offset 56
after: ino 0x101 (target), num_extents 5, Max in-fork extents 6, broot size 40, fork offset 96
after: ino 0x115 (temp), num_extents 11, Max in-fork extents 3, broot size 40, fork offset 56

Basically the target inode ends up with 5 extents in btree format,
but it had space for 6 extents in extent format, so ends up
incorrect. Notably here the broot size is the same, and that is
where the kernel code is going wrong - the btree root will fit, so
it lets the swap go ahead.

The check should not allow the swap to take place if the number of
extents while in btree format is less than the number of extents
that can fit in the inode in extent format. Adding that check will
prevent this swap and corruption from occurring.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_dfrag.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index cd27c9d6c71f8..5bba29a07812c 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -177,16 +177,26 @@ xfs_swap_extents_check_format(
 	    XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) > tip->i_df.if_ext_max)
 		return EINVAL;
 
-	/* Check root block of temp in btree form to max in target */
+	/*
+	 * If we are in a btree format, check that the temp root block will fit
+	 * in the target and that it has enough extents to be in btree format
+	 * in the target.
+	 *
+	 * Note that we have to be careful to allow btree->extent conversions
+	 * (a common defrag case) which will occur when the temp inode is in
+	 * extent format...
+	 */
 	if (tip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
-	    XFS_IFORK_BOFF(ip) &&
-	    tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip))
+	    ((XFS_IFORK_BOFF(ip) &&
+	      tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip)) ||
+	     XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK) <= ip->i_df.if_ext_max))
 		return EINVAL;
 
-	/* Check root block of target in btree form to max in temp */
+	/* Reciprocal target->temp btree format checks */
 	if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
-	    XFS_IFORK_BOFF(tip) &&
-	    ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip))
+	    ((XFS_IFORK_BOFF(tip) &&
+	      ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip)) ||
+	     XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) <= tip->i_df.if_ext_max))
 		return EINVAL;
 
 	return 0;

From 83bf6f11e82eba8533f8dbd241b2c2825e42ae5d Mon Sep 17 00:00:00 2001
From: Alexander Kurz <linux@kbdbabel.org>
Date: Sun, 25 Apr 2010 13:44:35 +0400
Subject: [PATCH 416/464] pcmcia: fix matching rules for pseudo-multi-function
 cards

Prevent PCMCIA_DEV_ID_MATCH_FUNC_ID from grabbing PFC-cards:
I changed the code, so that the first matching struct
pcmcia_device_id _PFC_ entry will mark the card has_pfc,
preventing PCMCIA_DEV_ID_MATCH_FUNC_ID to match.

[linux-pcmcia@lists.infradead.org: re-order commit message]
Signed-off-by: Alexander Kurz <linux@kbdbabel.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/ds.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 92a5af8aa0b4a..508f94a2a78db 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -820,11 +820,12 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
 	}
 
 	if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
-		if (dev->device_no != did->device_no)
-			return 0;
+		dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n");
 		mutex_lock(&dev->socket->ops_mutex);
 		dev->socket->pcmcia_state.has_pfc = 1;
 		mutex_unlock(&dev->socket->ops_mutex);
+		if (dev->device_no != did->device_no)
+			return 0;
 	}
 
 	if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
@@ -835,7 +836,7 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
 
 		/* if this is a pseudo-multi-function device,
 		 * we need explicit matches */
-		if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO)
+		if (dev->socket->pcmcia_state.has_pfc)
 			return 0;
 		if (dev->device_no)
 			return 0;

From 86913315de5ed13debd1566dfea15c4179b1f0c0 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <guenter.roeck@ericsson.com>
Date: Mon, 19 Apr 2010 08:37:11 -0700
Subject: [PATCH 417/464] Watchdog: sb_wdog.c: Fix sibyte watchdog
 initialization

Watchdog configuration register and timer count register were interchanged,
causing wrong values to be written into both registers.
This caused watchdog triggered resets even if the watchdog was reset in time.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/sb_wdog.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
index c8eadd4781758..88c83aa573031 100644
--- a/drivers/watchdog/sb_wdog.c
+++ b/drivers/watchdog/sb_wdog.c
@@ -67,8 +67,8 @@ static DEFINE_SPINLOCK(sbwd_lock);
 void sbwdog_set(char __iomem *wdog, unsigned long t)
 {
 	spin_lock(&sbwd_lock);
-	__raw_writeb(0, wdog - 0x10);
-	__raw_writeq(t & 0x7fffffUL, wdog);
+	__raw_writeb(0, wdog);
+	__raw_writeq(t & 0x7fffffUL, wdog - 0x10);
 	spin_unlock(&sbwd_lock);
 }
 

From dc8bf1b1a6edfc92465526de19772061302f0929 Mon Sep 17 00:00:00 2001
From: Andre Detsch <adetsch@br.ibm.com>
Date: Mon, 26 Apr 2010 07:27:07 +0000
Subject: [PATCH 418/464] tg3: Fix INTx fallback when MSI fails

tg3: Fix INTx fallback when MSI fails

MSI setup changes the value of irq_vec in struct tg3 *tp.
This attribute must be taken into account and restored before
we try to do a new request_irq for INTx fallback.

In powerpc, the original code was leading to an EINVAL return within
request_irq, because the driver was trying to use the disabled MSI
virtual irq number instead of tp->pdev->irq.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/tg3.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 22cf1c446de3f..ecc41cffb470d 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8633,6 +8633,7 @@ static int tg3_test_msi(struct tg3 *tp)
 	pci_disable_msi(tp->pdev);
 
 	tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
+	tp->napi[0].irq_vec = tp->pdev->irq;
 
 	err = tg3_request_irq(tp, 0);
 	if (err)

From fcf1dd7e68ceb6420478c8d89d35b4745d0b2f42 Mon Sep 17 00:00:00 2001
From: Denis Turischev <denis@compulab.co.il>
Date: Thu, 22 Apr 2010 19:50:03 +0300
Subject: [PATCH 419/464] watchdog: sbc_fitpc2_wdt: fixed I/O operations order

There are fitpc2 compatible boards that hang with existent i/o
operations order. Solution is to switch between writing to data
and command ports.

Signed-off-by: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/sbc_fitpc2_wdt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c
index 8d44c9b6fb5b7..2e44dd4e7c1ba 100644
--- a/drivers/watchdog/sbc_fitpc2_wdt.c
+++ b/drivers/watchdog/sbc_fitpc2_wdt.c
@@ -45,10 +45,10 @@ static DEFINE_SPINLOCK(wdt_lock);
 
 static void wdt_send_data(unsigned char command, unsigned char data)
 {
-	outb(command, COMMAND_PORT);
-	msleep(100);
 	outb(data, DATA_PORT);
 	msleep(200);
+	outb(command, COMMAND_PORT);
+	msleep(100);
 }
 
 static void wdt_enable(void)

From 93c0c8b4a5a174645550d444bd5c3ff0cccf74cb Mon Sep 17 00:00:00 2001
From: Stefan Schmidt <stefan@datenfreihafen.org>
Date: Mon, 26 Apr 2010 11:20:32 -0700
Subject: [PATCH 420/464] ieee802154: Fix oops during ieee802154_sock_ioctl

Trying to run izlisten (from lowpan-tools tests) on a device that does not
exists I got the oops below. The problem is that we are using get_dev_by_name
without checking if we really get a device back. We don't in this case and
writing to dev->type generates this oops.

[Oops code removed by Dmitry Eremin-Solenikov]

If possible this patch should be applied to the current -rc fixes branch.

Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/af_ieee802154.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
index c7da600750bb8..93c91b633a566 100644
--- a/net/ieee802154/af_ieee802154.c
+++ b/net/ieee802154/af_ieee802154.c
@@ -151,6 +151,9 @@ static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
 	dev_load(sock_net(sk), ifr.ifr_name);
 	dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
 
+	if (!dev)
+		return -ENODEV;
+
 	if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl)
 		ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
 

From 322af98c56c70b3ec6f637fb07d41a9591a6ff9a Mon Sep 17 00:00:00 2001
From: Denis Turischev <denis@compulab.co.il>
Date: Thu, 22 Apr 2010 19:54:20 +0300
Subject: [PATCH 421/464] watchdog: sbc_fitpc2_wdt: fixed "scheduling while
 atomic" bug.

spinlock need to be replaced by mutex because of sleep functions
inside wdt_send_data.

Signed-off-by: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/sbc_fitpc2_wdt.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c
index 2e44dd4e7c1ba..c7d67e9a74659 100644
--- a/drivers/watchdog/sbc_fitpc2_wdt.c
+++ b/drivers/watchdog/sbc_fitpc2_wdt.c
@@ -30,7 +30,7 @@
 static int nowayout = WATCHDOG_NOWAYOUT;
 static unsigned int margin = 60;	/* (secs) Default is 1 minute */
 static unsigned long wdt_status;
-static DEFINE_SPINLOCK(wdt_lock);
+static DEFINE_MUTEX(wdt_lock);
 
 #define WDT_IN_USE		0
 #define WDT_OK_TO_CLOSE		1
@@ -53,18 +53,18 @@ static void wdt_send_data(unsigned char command, unsigned char data)
 
 static void wdt_enable(void)
 {
-	spin_lock(&wdt_lock);
+	mutex_lock(&wdt_lock);
 	wdt_send_data(IFACE_ON_COMMAND, 1);
 	wdt_send_data(REBOOT_COMMAND, margin);
-	spin_unlock(&wdt_lock);
+	mutex_unlock(&wdt_lock);
 }
 
 static void wdt_disable(void)
 {
-	spin_lock(&wdt_lock);
+	mutex_lock(&wdt_lock);
 	wdt_send_data(IFACE_ON_COMMAND, 0);
 	wdt_send_data(REBOOT_COMMAND, 0);
-	spin_unlock(&wdt_lock);
+	mutex_unlock(&wdt_lock);
 }
 
 static int fitpc2_wdt_open(struct inode *inode, struct file *file)

From 4eb8b9031a0314539605733597b1e30222d4da70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?=
 =?UTF-8?q?=E6=98=8E?= <yoshfuji@linux-ipv6.org>
Date: Sun, 25 Apr 2010 08:59:07 +0000
Subject: [PATCH 422/464] bridge br_multicast: Ensure to initialize
 BR_INPUT_SKB_CB(skb)->mrouters_only.

Even with commit 32dec5dd0233ebffa9cae25ce7ba6daeb7df4467 ("bridge
br_multicast: Don't refer to BR_INPUT_SKB_CB(skb)->mrouters_only
without IGMP snooping."), BR_INPUT_SKB_CB(skb)->mrouters_only is
not appropriately initialized if IGMP snooping support is
compiled and disabled, so we can see garbage.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_multicast.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 386c15369d91e..eaa0e1bae49bc 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -957,9 +957,6 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
 	unsigned offset;
 	int err;
 
-	BR_INPUT_SKB_CB(skb)->igmp = 0;
-	BR_INPUT_SKB_CB(skb)->mrouters_only = 0;
-
 	/* We treat OOM as packet loss for now. */
 	if (!pskb_may_pull(skb, sizeof(*iph)))
 		return -EINVAL;
@@ -1049,6 +1046,9 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
 int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
 		     struct sk_buff *skb)
 {
+	BR_INPUT_SKB_CB(skb)->igmp = 0;
+	BR_INPUT_SKB_CB(skb)->mrouters_only = 0;
+
 	if (br->multicast_disabled)
 		return 0;
 

From 55051feb57eba600b366006757304a0af3ada2bd Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Fri, 23 Apr 2010 17:05:24 -0600
Subject: [PATCH 423/464] x86/PCI: never allocate PCI MMIO resources below
 BIOS_END

When we move a PCI device or assign resources to a device not configured
by the BIOS, we want to avoid the BIOS region below 1MB.  Note that if the
BIOS places devices below 1MB, we leave them there.

See https://bugzilla.kernel.org/show_bug.cgi?id=15744
and https://bugzilla.kernel.org/show_bug.cgi?id=15841

Tested-by: Andy Isaacson <adi@hexapodia.org>
Tested-by: Andy Bailey <bailey@akamai.com>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 arch/x86/pci/i386.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 46fd43f791037..97da2ba9344b4 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -72,6 +72,9 @@ pcibios_align_resource(void *data, const struct resource *res,
 			return start;
 		if (start & 0x300)
 			start = (start + 0x3ff) & ~0x3ff;
+	} else if (res->flags & IORESOURCE_MEM) {
+		if (start < BIOS_END)
+			start = BIOS_END;
 	}
 	return start;
 }

From 2bc3c1179c781b359d4f2f3439cb3df72afc17fc Mon Sep 17 00:00:00 2001
From: Neil Brown <neilb@suse.de>
Date: Tue, 20 Apr 2010 12:16:52 +1000
Subject: [PATCH 424/464] nfsd4: bug in read_buf

When read_buf is called to move over to the next page in the pagelist
of an NFSv4 request, it sets argp->end to essentially a random
number, certainly not an address within the page which argp->p now
points to.  So subsequent calls to READ_BUF will think there is much
more than a page of spare space (the cast to u32 ensures an unsigned
comparison) so we can expect to fall off the end of the second
page.

We never encountered thsi in testing because typically the only
operations which use more than two pages are write-like operations,
which have their own decoding logic.  Something like a getattr after a
write may cross a page boundary, but it would be very unusual for it to
cross another boundary after that.

Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
---
 fs/nfsd/nfs4xdr.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index e1703175ee286..34ccf815ea8aa 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -161,10 +161,10 @@ static __be32 *read_buf(struct nfsd4_compoundargs *argp, u32 nbytes)
 	argp->p = page_address(argp->pagelist[0]);
 	argp->pagelist++;
 	if (argp->pagelen < PAGE_SIZE) {
-		argp->end = p + (argp->pagelen>>2);
+		argp->end = argp->p + (argp->pagelen>>2);
 		argp->pagelen = 0;
 	} else {
-		argp->end = p + (PAGE_SIZE>>2);
+		argp->end = argp->p + (PAGE_SIZE>>2);
 		argp->pagelen -= PAGE_SIZE;
 	}
 	memcpy(((char*)p)+avail, argp->p, (nbytes - avail));
@@ -1426,10 +1426,10 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 			argp->p = page_address(argp->pagelist[0]);
 			argp->pagelist++;
 			if (argp->pagelen < PAGE_SIZE) {
-				argp->end = p + (argp->pagelen>>2);
+				argp->end = argp->p + (argp->pagelen>>2);
 				argp->pagelen = 0;
 			} else {
-				argp->end = p + (PAGE_SIZE>>2);
+				argp->end = argp->p + (PAGE_SIZE>>2);
 				argp->pagelen -= PAGE_SIZE;
 			}
 		}

From 87aeec767e1de60d7f76abbb44df5372b0932b7b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?fran=C3=A7ois=20romieu?= <romieu@fr.zoreil.com>
Date: Mon, 26 Apr 2010 11:42:06 +0000
Subject: [PATCH 425/464] r8169: failure to enable mwi should not be fatal

Few (6) network drivers enable mwi explicitly. Fewer worry about a
failure.

It is not a fix but it should avoid some annoyance like
http://bugzilla.kernel.org/show_bug.cgi?id=15454

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Conrad Kostecki <conikost@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/r8169.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index dbb1f5a1824c7..2b54389c8f57a 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2759,6 +2759,7 @@ static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
 {
 	iounmap(ioaddr);
 	pci_release_regions(pdev);
+	pci_clear_mwi(pdev);
 	pci_disable_device(pdev);
 	free_netdev(dev);
 }
@@ -3014,9 +3015,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_out_free_dev_1;
 	}
 
-	rc = pci_set_mwi(pdev);
-	if (rc < 0)
-		goto err_out_disable_2;
+	if (pci_set_mwi(pdev) < 0)
+		netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
 
 	/* make sure PCI base addr 1 is MMIO */
 	if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
@@ -3024,7 +3024,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 			  "region #%d not an MMIO resource, aborting\n",
 			  region);
 		rc = -ENODEV;
-		goto err_out_mwi_3;
+		goto err_out_mwi_2;
 	}
 
 	/* check for weird/broken PCI region reporting */
@@ -3032,13 +3032,13 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		netif_err(tp, probe, dev,
 			  "Invalid PCI region size(s), aborting\n");
 		rc = -ENODEV;
-		goto err_out_mwi_3;
+		goto err_out_mwi_2;
 	}
 
 	rc = pci_request_regions(pdev, MODULENAME);
 	if (rc < 0) {
 		netif_err(tp, probe, dev, "could not request regions\n");
-		goto err_out_mwi_3;
+		goto err_out_mwi_2;
 	}
 
 	tp->cp_cmd = PCIMulRW | RxChkSum;
@@ -3051,7 +3051,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (rc < 0) {
 			netif_err(tp, probe, dev, "DMA configuration failed\n");
-			goto err_out_free_res_4;
+			goto err_out_free_res_3;
 		}
 	}
 
@@ -3060,7 +3060,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!ioaddr) {
 		netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
 		rc = -EIO;
-		goto err_out_free_res_4;
+		goto err_out_free_res_3;
 	}
 
 	tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
@@ -3102,7 +3102,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (i == ARRAY_SIZE(rtl_chip_info)) {
 		dev_err(&pdev->dev,
 			"driver bug, MAC version not found in rtl_chip_info\n");
-		goto err_out_msi_5;
+		goto err_out_msi_4;
 	}
 	tp->chipset = i;
 
@@ -3167,7 +3167,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	rc = register_netdev(dev);
 	if (rc < 0)
-		goto err_out_msi_5;
+		goto err_out_msi_4;
 
 	pci_set_drvdata(pdev, dev);
 
@@ -3190,14 +3190,13 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 out:
 	return rc;
 
-err_out_msi_5:
+err_out_msi_4:
 	rtl_disable_msi(pdev, tp);
 	iounmap(ioaddr);
-err_out_free_res_4:
+err_out_free_res_3:
 	pci_release_regions(pdev);
-err_out_mwi_3:
+err_out_mwi_2:
 	pci_clear_mwi(pdev);
-err_out_disable_2:
 	pci_disable_device(pdev);
 err_out_free_dev_1:
 	free_netdev(dev);

From 908ba2bfd22253f26fa910cd855e4ccffb1467d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?fran=C3=A7ois=20romieu?= <romieu@fr.zoreil.com>
Date: Mon, 26 Apr 2010 11:42:58 +0000
Subject: [PATCH 426/464] r8169: more broken register writes workaround

78f1cd02457252e1ffbc6caa44a17424a45286b8 ("fix broken register writes")
does not work for Al Viro's r8169 (XID 18000000).

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/r8169.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 2b54389c8f57a..4748c21eb72e9 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2826,8 +2826,13 @@ static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
 	spin_lock_irq(&tp->lock);
 
 	RTL_W8(Cfg9346, Cfg9346_Unlock);
+
 	RTL_W32(MAC4, high);
+	RTL_R32(MAC4);
+
 	RTL_W32(MAC0, low);
+	RTL_R32(MAC0);
+
 	RTL_W8(Cfg9346, Cfg9346_Lock);
 
 	spin_unlock_irq(&tp->lock);

From e32ee7fa54e3172e6413cefaaee9222a3f521617 Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Fri, 26 Mar 2010 18:07:15 +0000
Subject: [PATCH 427/464] drm: make sure vblank interrupts are disabled at DPMS
 time

When we call drm_vblank_off() at DPMS off time (to wake any clients so
they don't hang) we need to make sure interrupts are actually disabled.
If drm_vblank_off() gets called before the vblank usage timer expires,
it'll prevent the timer from disabling interrupts since it also clears
the vblank_enabled flag for the pipe.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_irq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index b98384dbd9a7a..99ce7dcb28e03 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -475,6 +475,7 @@ void drm_vblank_off(struct drm_device *dev, int crtc)
 	unsigned long irqflags;
 
 	spin_lock_irqsave(&dev->vbl_lock, irqflags);
+	dev->driver->disable_vblank(dev, crtc);
 	DRM_WAKEUP(&dev->vbl_queue[crtc]);
 	dev->vblank_enabled[crtc] = 0;
 	dev->last_vblank[crtc] = dev->driver->get_vblank_counter(dev, crtc);

From 88b045077a1462a47503137fd4ca0c31772819ca Mon Sep 17 00:00:00 2001
From: David Miller <davem@davemloft.net>
Date: Mon, 26 Apr 2010 02:55:42 -0700
Subject: [PATCH 428/464] drm/radeon: Fix sparc regression in r300_scratch()

Commit b4fe945405e477cded91772b4fec854705443dd5 ("drm/radeon: Fix
memory allocation failures in the preKMS command stream checking.")
added a regression in that it completely tossed the get_unaligned()
done by r300_scratch() which we added in commit
958a6f8ccb1964adc3eec84cf401c5baeb4fbca0 ("drm: radeon: Fix unaligned
access in r300_scratch().").

Put it back.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r300_cmdbuf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/r300_cmdbuf.c b/drivers/gpu/drm/radeon/r300_cmdbuf.c
index ea46d558e8f39..c5c2742e41405 100644
--- a/drivers/gpu/drm/radeon/r300_cmdbuf.c
+++ b/drivers/gpu/drm/radeon/r300_cmdbuf.c
@@ -921,7 +921,7 @@ static int r300_scratch(drm_radeon_private_t *dev_priv,
 
 	ptr_addr = drm_buffer_read_object(cmdbuf->buffer,
 			sizeof(stack_ptr_addr), &stack_ptr_addr);
-	ref_age_base = (u32 *)(unsigned long)*ptr_addr;
+	ref_age_base = (u32 *)(unsigned long)get_unaligned(ptr_addr);
 
 	for (i=0; i < header.scratch.n_bufs; i++) {
 		buf_idx = drm_buffer_pointer_to_dword(cmdbuf->buffer, 0);

From a33eb6b91034c95b9b08576f68be170f995b2c7d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn=20Engel?= <joern@logfs.org>
Date: Tue, 27 Apr 2010 09:40:52 +0200
Subject: [PATCH 429/464] Move mtd_bdi_*mappable to mtdcore.c

Removes one .h and one .c file that are never used outside of
mtdcore.c.

Signed-off-by: Joern Engel <joern@logfs.org>

Edited to remove on leftover debug define.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 drivers/mtd/Makefile   |  2 +-
 drivers/mtd/internal.h | 17 -----------------
 drivers/mtd/mtdbdi.c   | 43 ------------------------------------------
 drivers/mtd/mtdcore.c  | 33 +++++++++++++++++++++++++++++++-
 4 files changed, 33 insertions(+), 62 deletions(-)

diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 82d1e4de475bb..4521b1ecce452 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -4,7 +4,7 @@
 
 # Core functionality.
 obj-$(CONFIG_MTD)		+= mtd.o
-mtd-y				:= mtdcore.o mtdsuper.o mtdbdi.o
+mtd-y				:= mtdcore.o mtdsuper.o
 mtd-$(CONFIG_MTD_PARTITIONS)	+= mtdpart.o
 
 obj-$(CONFIG_MTD_CONCAT)	+= mtdconcat.o
diff --git a/drivers/mtd/internal.h b/drivers/mtd/internal.h
index c658fe7216b56..e69de29bb2d1d 100644
--- a/drivers/mtd/internal.h
+++ b/drivers/mtd/internal.h
@@ -1,17 +0,0 @@
-/* Internal MTD definitions
- *
- * Copyright © 2006 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-/*
- * mtdbdi.c
- */
-extern struct backing_dev_info mtd_bdi_unmappable;
-extern struct backing_dev_info mtd_bdi_ro_mappable;
-extern struct backing_dev_info mtd_bdi_rw_mappable;
diff --git a/drivers/mtd/mtdbdi.c b/drivers/mtd/mtdbdi.c
index 5ca5aed0b2253..e69de29bb2d1d 100644
--- a/drivers/mtd/mtdbdi.c
+++ b/drivers/mtd/mtdbdi.c
@@ -1,43 +0,0 @@
-/* MTD backing device capabilities
- *
- * Copyright © 2006 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/backing-dev.h>
-#include <linux/mtd/mtd.h>
-#include "internal.h"
-
-/*
- * backing device capabilities for non-mappable devices (such as NAND flash)
- * - permits private mappings, copies are taken of the data
- */
-struct backing_dev_info mtd_bdi_unmappable = {
-	.capabilities	= BDI_CAP_MAP_COPY,
-};
-
-/*
- * backing device capabilities for R/O mappable devices (such as ROM)
- * - permits private mappings, copies are taken of the data
- * - permits non-writable shared mappings
- */
-struct backing_dev_info mtd_bdi_ro_mappable = {
-	.capabilities	= (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT |
-			   BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP),
-};
-
-/*
- * backing device capabilities for writable mappable devices (such as RAM)
- * - permits private mappings, copies are taken of the data
- * - permits non-writable shared mappings
- */
-struct backing_dev_info mtd_bdi_rw_mappable = {
-	.capabilities	= (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT |
-			   BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP |
-			   BDI_CAP_WRITE_MAP),
-};
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 5b38b17d22293..541d556aec7ee 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -2,6 +2,9 @@
  * Core registration and callback routines for MTD
  * drivers and users.
  *
+ * bdi bits are:
+ * Copyright © 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
  */
 
 #include <linux/module.h>
@@ -16,11 +19,39 @@
 #include <linux/init.h>
 #include <linux/mtd/compatmac.h>
 #include <linux/proc_fs.h>
+#include <linux/backing-dev.h>
 
 #include <linux/mtd/mtd.h>
-#include "internal.h"
 
 #include "mtdcore.h"
+/*
+ * backing device capabilities for non-mappable devices (such as NAND flash)
+ * - permits private mappings, copies are taken of the data
+ */
+struct backing_dev_info mtd_bdi_unmappable = {
+	.capabilities	= BDI_CAP_MAP_COPY,
+};
+
+/*
+ * backing device capabilities for R/O mappable devices (such as ROM)
+ * - permits private mappings, copies are taken of the data
+ * - permits non-writable shared mappings
+ */
+struct backing_dev_info mtd_bdi_ro_mappable = {
+	.capabilities	= (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT |
+			   BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP),
+};
+
+/*
+ * backing device capabilities for writable mappable devices (such as RAM)
+ * - permits private mappings, copies are taken of the data
+ * - permits non-writable shared mappings
+ */
+struct backing_dev_info mtd_bdi_rw_mappable = {
+	.capabilities	= (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT |
+			   BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP |
+			   BDI_CAP_WRITE_MAP),
+};
 
 static int mtd_cls_suspend(struct device *dev, pm_message_t state);
 static int mtd_cls_resume(struct device *dev);

From 0661b1ac5d48eb47c8a5948c0554fea25e0895ab Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 27 Apr 2010 09:49:47 +0200
Subject: [PATCH 430/464] mtd: ensure that bdi entries are properly initialized
 and registered

They will be holding dirty inodes and be responsible for flushing
them out, so they need to be setup properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 drivers/mtd/mtdcore.c | 46 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 42 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 541d556aec7ee..b177e750efc36 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -659,20 +659,55 @@ static int mtd_read_proc (char *page, char **start, off_t off, int count,
 /*====================================================================*/
 /* Init code */
 
+static int __init mtd_bdi_init(struct backing_dev_info *bdi, const char *name)
+{
+	int ret;
+
+	ret = bdi_init(bdi);
+	if (!ret)
+		ret = bdi_register(bdi, NULL, name);
+
+	if (ret)
+		bdi_destroy(bdi);
+
+	return ret;
+}
+
 static int __init init_mtd(void)
 {
 	int ret;
+
 	ret = class_register(&mtd_class);
+	if (ret)
+		goto err_reg;
+
+	ret = mtd_bdi_init(&mtd_bdi_unmappable, "mtd-unmap");
+	if (ret)
+		goto err_bdi1;
+
+	ret = mtd_bdi_init(&mtd_bdi_ro_mappable, "mtd-romap");
+	if (ret)
+		goto err_bdi2;
+
+	ret = mtd_bdi_init(&mtd_bdi_rw_mappable, "mtd-rwmap");
+	if (ret)
+		goto err_bdi3;
 
-	if (ret) {
-		pr_err("Error registering mtd class: %d\n", ret);
-		return ret;
-	}
 #ifdef CONFIG_PROC_FS
 	if ((proc_mtd = create_proc_entry( "mtd", 0, NULL )))
 		proc_mtd->read_proc = mtd_read_proc;
 #endif /* CONFIG_PROC_FS */
 	return 0;
+
+err_bdi3:
+	bdi_destroy(&mtd_bdi_ro_mappable);
+err_bdi2:
+	bdi_destroy(&mtd_bdi_unmappable);
+err_bdi1:
+	class_unregister(&mtd_class);
+err_reg:
+	pr_err("Error registering mtd class or bdi: %d\n", ret);
+	return ret;
 }
 
 static void __exit cleanup_mtd(void)
@@ -682,6 +717,9 @@ static void __exit cleanup_mtd(void)
 		remove_proc_entry( "mtd", NULL);
 #endif /* CONFIG_PROC_FS */
 	class_unregister(&mtd_class);
+	bdi_destroy(&mtd_bdi_unmappable);
+	bdi_destroy(&mtd_bdi_ro_mappable);
+	bdi_destroy(&mtd_bdi_rw_mappable);
 }
 
 module_init(init_mtd);

From d8d8b63b6dc413696ade040e52173c068df11702 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <avorontsov@mvista.com>
Date: Mon, 26 Apr 2010 15:59:53 -0700
Subject: [PATCH 431/464] watchdog: booke_wdt: fix build - unconstify
 watchdog_info

commit 42747d712de56cf2087b702d2ad90af114c53138 ("[WATCHDOG] watchdog_info
constify") introduced the following build failure:

   CC      booke_wdt.o
 booke_wdt.c: In function 'booke_wdt_init':
 booke_wdt.c:220: error: assignment of read-only variable 'ident'

Fix this by removing 'const' qualifier from watchdog_info struct.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/watchdog/booke_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index 500d38342e1ec..801ead1914999 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -121,7 +121,7 @@ static ssize_t booke_wdt_write(struct file *file, const char __user *buf,
 	return count;
 }
 
-static const struct watchdog_info ident = {
+static struct watchdog_info ident = {
 	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
 	.identity = "PowerPC Book-E Watchdog",
 };

From 5892753383090a3eddf0e1b043c95e3b2c7feda5 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 26 Apr 2010 12:33:03 -0400
Subject: [PATCH 432/464] mmap: check ->vm_ops before dereferencing

Check whether the VMA has a vm_ops before calling close, just
like we check vm_ops before calling open a few dozen lines
higher up in the function.

Signed-off-by: Rik van Riel <riel@redhat.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/mmap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index f90ea92f755ae..456ec6f278897 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1977,7 +1977,8 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
 		return 0;
 
 	/* Clean everything up if vma_adjust failed. */
-	new->vm_ops->close(new);
+	if (new->vm_ops && new->vm_ops->close)
+		new->vm_ops->close(new);
 	if (new->vm_file) {
 		if (vma->vm_flags & VM_EXECUTABLE)
 			removed_exe_file_vma(mm);

From 16a5b3c4143fc7f6cbe0ef9fd4e9a58376f91506 Mon Sep 17 00:00:00 2001
From: Christoph Egger <siccegge@cs.fau.de>
Date: Mon, 26 Apr 2010 15:56:36 +0100
Subject: [PATCH 433/464] Remove redundant check for CONFIG_MMU

The checks for CONFIG_MMU at this location are duplicated as all the code is
located inside a #ifndef CONFIG_MMU block. So the first conditional block will
always be included while the second never will.

Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/binfmt_elf_fdpic.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 7ab23e006e4cb..2c5f9a0e5d72b 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1005,15 +1005,8 @@ static int elf_fdpic_map_file_constdisp_on_uclinux(
 				}
 			} else if (!mm->start_data) {
 				mm->start_data = seg->addr;
-#ifndef CONFIG_MMU
 				mm->end_data = seg->addr + phdr->p_memsz;
-#endif
 			}
-
-#ifdef CONFIG_MMU
-			if (seg->addr + phdr->p_memsz > mm->end_data)
-				mm->end_data = seg->addr + phdr->p_memsz;
-#endif
 		}
 
 		seg++;

From 61fac744dddb22d99c7b12250bc9bada7866df08 Mon Sep 17 00:00:00 2001
From: Peter Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Date: Tue, 27 Apr 2010 00:38:15 +0000
Subject: [PATCH 434/464] ixgbe: Power down PHY during driver resets

The PHY laser is still on during driver init.  It's allowing
garbage to hit our FIFO, which eventually can cause the entire
device to die.  Power down the laser while setting up the device,
and re-enable the laser before getting link.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ixgbe/ixgbe_82599.c | 62 +++++++++++++++++++++++++--------
 drivers/net/ixgbe/ixgbe_main.c  | 22 ++++++------
 drivers/net/ixgbe/ixgbe_type.h  |  2 ++
 3 files changed, 62 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index b405a00817c66..12fc0e7ba2ca3 100644
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -39,6 +39,8 @@
 #define IXGBE_82599_MC_TBL_SIZE   128
 #define IXGBE_82599_VFT_TBL_SIZE  128
 
+void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
+void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
                                           ixgbe_link_speed speed,
@@ -69,8 +71,14 @@ static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
 	if (hw->phy.multispeed_fiber) {
 		/* Set up dual speed SFP+ support */
 		mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
+		mac->ops.disable_tx_laser =
+		                       &ixgbe_disable_tx_laser_multispeed_fiber;
+		mac->ops.enable_tx_laser =
+		                        &ixgbe_enable_tx_laser_multispeed_fiber;
 		mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
 	} else {
+		mac->ops.disable_tx_laser = NULL;
+		mac->ops.enable_tx_laser = NULL;
 		mac->ops.flap_tx_laser = NULL;
 		if ((mac->ops.get_media_type(hw) ==
 		     ixgbe_media_type_backplane) &&
@@ -415,6 +423,44 @@ s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
 	return status;
 }
 
+ /**
+  *  ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
+  *  @hw: pointer to hardware structure
+  *
+  *  The base drivers may require better control over SFP+ module
+  *  PHY states.  This includes selectively shutting down the Tx
+  *  laser on the PHY, effectively halting physical link.
+  **/
+void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
+{
+	u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
+
+	/* Disable tx laser; allow 100us to go dark per spec */
+	esdp_reg |= IXGBE_ESDP_SDP3;
+	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+	IXGBE_WRITE_FLUSH(hw);
+	udelay(100);
+}
+
+/**
+ *  ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
+ *  @hw: pointer to hardware structure
+ *
+ *  The base drivers may require better control over SFP+ module
+ *  PHY states.  This includes selectively turning on the Tx
+ *  laser on the PHY, effectively starting physical link.
+ **/
+void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
+{
+	u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
+
+	/* Enable tx laser; allow 100ms to light up */
+	esdp_reg &= ~IXGBE_ESDP_SDP3;
+	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+	IXGBE_WRITE_FLUSH(hw);
+	msleep(100);
+}
+
 /**
  *  ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
  *  @hw: pointer to hardware structure
@@ -429,23 +475,11 @@ s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
  **/
 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
 {
-	u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
-
 	hw_dbg(hw, "ixgbe_flap_tx_laser_multispeed_fiber\n");
 
 	if (hw->mac.autotry_restart) {
-		/* Disable tx laser; allow 100us to go dark per spec */
-		esdp_reg |= IXGBE_ESDP_SDP3;
-		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
-		IXGBE_WRITE_FLUSH(hw);
-		udelay(100);
-
-		/* Enable tx laser; allow 100ms to light up */
-		esdp_reg &= ~IXGBE_ESDP_SDP3;
-		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
-		IXGBE_WRITE_FLUSH(hw);
-		msleep(100);
-
+		ixgbe_disable_tx_laser_multispeed_fiber(hw);
+		ixgbe_enable_tx_laser_multispeed_fiber(hw);
 		hw->mac.autotry_restart = false;
 	}
 }
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 8f677cb862905..6c00ee493a3bb 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2982,6 +2982,10 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
 	else
 		ixgbe_configure_msi_and_legacy(adapter);
 
+	/* enable the optics */
+	if (hw->phy.multispeed_fiber)
+		hw->mac.ops.enable_tx_laser(hw);
+
 	clear_bit(__IXGBE_DOWN, &adapter->state);
 	ixgbe_napi_enable_all(adapter);
 
@@ -3243,6 +3247,10 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
 	/* signal that we are down to the interrupt handler */
 	set_bit(__IXGBE_DOWN, &adapter->state);
 
+	/* power down the optics */
+	if (hw->phy.multispeed_fiber)
+		hw->mac.ops.disable_tx_laser(hw);
+
 	/* disable receive for all VFs and wait one second */
 	if (adapter->num_vfs) {
 		/* ping all the active vfs to let them know we are going down */
@@ -6253,6 +6261,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 		goto err_eeprom;
 	}
 
+	/* power down the optics */
+	if (hw->phy.multispeed_fiber)
+		hw->mac.ops.disable_tx_laser(hw);
+
 	init_timer(&adapter->watchdog_timer);
 	adapter->watchdog_timer.function = &ixgbe_watchdog;
 	adapter->watchdog_timer.data = (unsigned long)adapter;
@@ -6400,16 +6412,6 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev)
 	del_timer_sync(&adapter->sfp_timer);
 	cancel_work_sync(&adapter->watchdog_task);
 	cancel_work_sync(&adapter->sfp_task);
-	if (adapter->hw.phy.multispeed_fiber) {
-		struct ixgbe_hw *hw = &adapter->hw;
-		/*
-		 * Restart clause 37 autoneg, disable and re-enable
-		 * the tx laser, to clear & alert the link partner
-		 * that it needs to restart autotry
-		 */
-		hw->mac.autotry_restart = true;
-		hw->mac.ops.flap_tx_laser(hw);
-	}
 	cancel_work_sync(&adapter->multispeed_fiber_task);
 	cancel_work_sync(&adapter->sfp_config_module_task);
 	if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE ||
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index 4ec6dc1a5b75c..534affcc38ca0 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -2398,6 +2398,8 @@ struct ixgbe_mac_operations {
 	s32 (*enable_rx_dma)(struct ixgbe_hw *, u32);
 
 	/* Link */
+	void (*disable_tx_laser)(struct ixgbe_hw *);
+	void (*enable_tx_laser)(struct ixgbe_hw *);
 	void (*flap_tx_laser)(struct ixgbe_hw *);
 	s32 (*setup_link)(struct ixgbe_hw *, ixgbe_link_speed, bool, bool);
 	s32 (*check_link)(struct ixgbe_hw *, ixgbe_link_speed *, bool *, bool);

From 6f461f6c7c961f0b1b73c0f27becf472a0ac606b Mon Sep 17 00:00:00 2001
From: Bruce Allan <bruce.w.allan@intel.com>
Date: Tue, 27 Apr 2010 03:33:04 +0000
Subject: [PATCH 435/464] e1000e: enable/disable ASPM L0s and L1 and ERT
 according to hardware errata

Prompted by a previous patch submitted by Matthew Garret <mjg@redhat.com>,
further digging into errata documentation reveals the current enabling or
disabling of ASPM L0s and L1 states for certain parts supported by this
driver are incorrect.  82571 and 82572 should always disable L1.  For
standard frames, 82573/82574/82583 can enable L1 but L0s must be disabled,
and for jumbo frames 82573/82574 must disable L1.  This allows for some
parts to enable L1 in certain configurations leading to better power
savings.

Also according to the same errata, Early Receive (ERT) should be disabled
on 82573 when using jumbo frames.

Cc: Matthew Garret <mjg@redhat.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/e1000e/82571.c  | 20 +++++------
 drivers/net/e1000e/e1000.h  |  5 ++-
 drivers/net/e1000e/netdev.c | 70 ++++++++++++++++++++++---------------
 3 files changed, 55 insertions(+), 40 deletions(-)

diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 712ccc66ba25b..90155552ea092 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -336,7 +336,6 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
 	struct e1000_hw *hw = &adapter->hw;
 	static int global_quad_port_a; /* global port a indication */
 	struct pci_dev *pdev = adapter->pdev;
-	u16 eeprom_data = 0;
 	int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
 	s32 rc;
 
@@ -387,16 +386,15 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
 		if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD)
 			adapter->flags &= ~FLAG_HAS_WOL;
 		break;
-
 	case e1000_82573:
+	case e1000_82574:
+	case e1000_82583:
+		/* Disable ASPM L0s due to hardware errata */
+		e1000e_disable_aspm(adapter->pdev, PCIE_LINK_STATE_L0S);
+
 		if (pdev->device == E1000_DEV_ID_82573L) {
-			if (e1000_read_nvm(&adapter->hw, NVM_INIT_3GIO_3, 1,
-				       &eeprom_data) < 0)
-				break;
-			if (!(eeprom_data & NVM_WORD1A_ASPM_MASK)) {
-				adapter->flags |= FLAG_HAS_JUMBO_FRAMES;
-				adapter->max_hw_frame_size = DEFAULT_JUMBO;
-			}
+			adapter->flags |= FLAG_HAS_JUMBO_FRAMES;
+			adapter->max_hw_frame_size = DEFAULT_JUMBO;
 		}
 		break;
 	default:
@@ -1792,6 +1790,7 @@ struct e1000_info e1000_82571_info = {
 				  | FLAG_RESET_OVERWRITES_LAA /* errata */
 				  | FLAG_TARC_SPEED_MODE_BIT /* errata */
 				  | FLAG_APME_CHECK_PORT_B,
+	.flags2			= FLAG2_DISABLE_ASPM_L1, /* errata 13 */
 	.pba			= 38,
 	.max_hw_frame_size	= DEFAULT_JUMBO,
 	.get_variants		= e1000_get_variants_82571,
@@ -1809,6 +1808,7 @@ struct e1000_info e1000_82572_info = {
 				  | FLAG_RX_CSUM_ENABLED
 				  | FLAG_HAS_CTRLEXT_ON_LOAD
 				  | FLAG_TARC_SPEED_MODE_BIT, /* errata */
+	.flags2			= FLAG2_DISABLE_ASPM_L1, /* errata 13 */
 	.pba			= 38,
 	.max_hw_frame_size	= DEFAULT_JUMBO,
 	.get_variants		= e1000_get_variants_82571,
@@ -1820,13 +1820,11 @@ struct e1000_info e1000_82572_info = {
 struct e1000_info e1000_82573_info = {
 	.mac			= e1000_82573,
 	.flags			= FLAG_HAS_HW_VLAN_FILTER
-				  | FLAG_HAS_JUMBO_FRAMES
 				  | FLAG_HAS_WOL
 				  | FLAG_APME_IN_CTRL3
 				  | FLAG_RX_CSUM_ENABLED
 				  | FLAG_HAS_SMART_POWER_DOWN
 				  | FLAG_HAS_AMT
-				  | FLAG_HAS_ERT
 				  | FLAG_HAS_SWSM_ON_LOAD,
 	.pba			= 20,
 	.max_hw_frame_size	= ETH_FRAME_LEN + ETH_FCS_LEN,
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index 118bdf4835938..ee32b9b27a9fc 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -37,6 +37,7 @@
 #include <linux/io.h>
 #include <linux/netdevice.h>
 #include <linux/pci.h>
+#include <linux/pci-aspm.h>
 
 #include "hw.h"
 
@@ -374,7 +375,7 @@ struct e1000_adapter {
 struct e1000_info {
 	enum e1000_mac_type	mac;
 	unsigned int		flags;
-	unsigned int            flags2;
+	unsigned int		flags2;
 	u32			pba;
 	u32			max_hw_frame_size;
 	s32			(*get_variants)(struct e1000_adapter *);
@@ -421,6 +422,7 @@ struct e1000_info {
 #define FLAG2_CRC_STRIPPING               (1 << 0)
 #define FLAG2_HAS_PHY_WAKEUP              (1 << 1)
 #define FLAG2_IS_DISCARDING               (1 << 2)
+#define FLAG2_DISABLE_ASPM_L1             (1 << 3)
 
 #define E1000_RX_DESC_PS(R, i)	    \
 	(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
@@ -461,6 +463,7 @@ extern void e1000e_update_stats(struct e1000_adapter *adapter);
 extern bool e1000e_has_link(struct e1000_adapter *adapter);
 extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
 extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
+extern void e1000e_disable_aspm(struct pci_dev *pdev, u16 state);
 
 extern unsigned int copybreak;
 
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 73d43c53015a0..fb8fc7d1b50d9 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4283,6 +4283,14 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
 		return -EINVAL;
 	}
 
+	/* 82573 Errata 17 */
+	if (((adapter->hw.mac.type == e1000_82573) ||
+	     (adapter->hw.mac.type == e1000_82574)) &&
+	    (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN)) {
+		adapter->flags2 |= FLAG2_DISABLE_ASPM_L1;
+		e1000e_disable_aspm(adapter->pdev, PCIE_LINK_STATE_L1);
+	}
+
 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 		msleep(1);
 	/* e1000e_down -> e1000e_reset dependent on max_frame_size & mtu */
@@ -4605,29 +4613,39 @@ static void e1000_complete_shutdown(struct pci_dev *pdev, bool sleep,
 	}
 }
 
-static void e1000e_disable_l1aspm(struct pci_dev *pdev)
+#ifdef CONFIG_PCIEASPM
+static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
+{
+	pci_disable_link_state(pdev, state);
+}
+#else
+static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
 {
 	int pos;
-	u16 val;
+	u16 reg16;
 
 	/*
-	 * 82573 workaround - disable L1 ASPM on mobile chipsets
-	 *
-	 * L1 ASPM on various mobile (ich7) chipsets do not behave properly
-	 * resulting in lost data or garbage information on the pci-e link
-	 * level. This could result in (false) bad EEPROM checksum errors,
-	 * long ping times (up to 2s) or even a system freeze/hang.
-	 *
-	 * Unfortunately this feature saves about 1W power consumption when
-	 * active.
+	 * Both device and parent should have the same ASPM setting.
+	 * Disable ASPM in downstream component first and then upstream.
 	 */
-	pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
-	pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &val);
-	if (val & 0x2) {
-		dev_warn(&pdev->dev, "Disabling L1 ASPM\n");
-		val &= ~0x2;
-		pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, val);
-	}
+	pos = pci_pcie_cap(pdev);
+	pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
+	reg16 &= ~state;
+	pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
+
+	pos = pci_pcie_cap(pdev->bus->self);
+	pci_read_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, &reg16);
+	reg16 &= ~state;
+	pci_write_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, reg16);
+}
+#endif
+void e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
+{
+	dev_info(&pdev->dev, "Disabling ASPM %s %s\n",
+		 (state & PCIE_LINK_STATE_L0S) ? "L0s" : "",
+		 (state & PCIE_LINK_STATE_L1) ? "L1" : "");
+
+	__e1000e_disable_aspm(pdev, state);
 }
 
 #ifdef CONFIG_PM
@@ -4653,7 +4671,8 @@ static int e1000_resume(struct pci_dev *pdev)
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 	pci_save_state(pdev);
-	e1000e_disable_l1aspm(pdev);
+	if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1)
+		e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1);
 
 	err = pci_enable_device_mem(pdev);
 	if (err) {
@@ -4795,7 +4814,8 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
 	int err;
 	pci_ers_result_t result;
 
-	e1000e_disable_l1aspm(pdev);
+	if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1)
+		e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1);
 	err = pci_enable_device_mem(pdev);
 	if (err) {
 		dev_err(&pdev->dev,
@@ -4889,13 +4909,6 @@ static void e1000_eeprom_checks(struct e1000_adapter *adapter)
 		dev_warn(&adapter->pdev->dev,
 			 "Warning: detected DSPD enabled in EEPROM\n");
 	}
-
-	ret_val = e1000_read_nvm(hw, NVM_INIT_3GIO_3, 1, &buf);
-	if (!ret_val && (le16_to_cpu(buf) & (3 << 2))) {
-		/* ASPM enable */
-		dev_warn(&adapter->pdev->dev,
-			 "Warning: detected ASPM enabled in EEPROM\n");
-	}
 }
 
 static const struct net_device_ops e1000e_netdev_ops = {
@@ -4944,7 +4957,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 	u16 eeprom_data = 0;
 	u16 eeprom_apme_mask = E1000_EEPROM_APME;
 
-	e1000e_disable_l1aspm(pdev);
+	if (ei->flags2 & FLAG2_DISABLE_ASPM_L1)
+		e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1);
 
 	err = pci_enable_device_mem(pdev);
 	if (err)

From e95ef5d3f6bc60433883e1ef65dac747acd0bf1a Mon Sep 17 00:00:00 2001
From: Andre Detsch <adetsch@br.ibm.com>
Date: Mon, 26 Apr 2010 05:38:27 +0000
Subject: [PATCH 436/464] cxgb3: Wait longer for control packets on
 initialization

In some Power7 platforms, when using VIOS (Virtual I/O Server), we
need to wait longer for control packets to finish transfer during
initialization.
Without this change, initialization may fail prematurely.

Signed-off-by: Wen Xiong <wenxiong@us.ibm.com>
Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/cxgb3/cxgb3_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index aced6c5e635ce..e3f1b85664952 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -439,7 +439,7 @@ static void free_irq_resources(struct adapter *adapter)
 static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt,
 			      unsigned long n)
 {
-	int attempts = 5;
+	int attempts = 10;
 
 	while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) {
 		if (!--attempts)

From c441b8d2cb2194b05550a558d6d95d8944e56a84 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Tue, 27 Apr 2010 11:28:09 +0000
Subject: [PATCH 437/464] bnx2: Fix lost MSI-X problem on 5709 NICs.

It has been reported that under certain heavy traffic conditions in MSI-X
mode, the driver can lose an MSI-X vector causing all packets in the
associated rx/tx ring pair to be dropped.  The problem is caused by
the chip dropping the write to unmask the MSI-X vector by the kernel
(when migrating the IRQ for example).

This can be prevented by increasing the GRC timeout value for these
register read and write operations.

Thanks to Dell for helping us debug this problem.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bnx2.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index a257babd1bb40..4c1e51ee8ede2 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -4759,8 +4759,12 @@ bnx2_reset_chip(struct bnx2 *bp, u32 reset_code)
 		rc = bnx2_alloc_bad_rbuf(bp);
 	}
 
-	if (bp->flags & BNX2_FLAG_USING_MSIX)
+	if (bp->flags & BNX2_FLAG_USING_MSIX) {
 		bnx2_setup_msix_tbl(bp);
+		/* Prevent MSIX table reads and write from timing out */
+		REG_WR(bp, BNX2_MISC_ECO_HW_CTL,
+			BNX2_MISC_ECO_HW_CTL_LARGE_GRC_TMOUT_EN);
+	}
 
 	return rc;
 }

From 212f9934afccf9c97399216b694a7f452526d6da Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Tue, 27 Apr 2010 11:28:10 +0000
Subject: [PATCH 438/464] bnx2: Prevent "scheduling while atomic" warning with
 cnic, bonding and vlan.

The bonding driver calls ndo_vlan_rx_register() while holding bond->lock.
The bnx2 driver calls bnx2_netif_stop() to stop the rx handling while
changing the vlgrp.  The call also stops the cnic driver which sleeps
while the bond->lock is held and cause the warning.

This code path only needs to stop the NAPI rx handling while we are
changing the vlgrp.  Since no reset is going to occur, there is no need
to stop cnic in this case.  By adding a parameter to bnx2_netif_stop()
to skip stopping cnic, we can avoid the warning.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bnx2.c | 38 ++++++++++++++++++++------------------
 1 file changed, 20 insertions(+), 18 deletions(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 4c1e51ee8ede2..35eec2defadc7 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -651,9 +651,10 @@ bnx2_napi_enable(struct bnx2 *bp)
 }
 
 static void
-bnx2_netif_stop(struct bnx2 *bp)
+bnx2_netif_stop(struct bnx2 *bp, bool stop_cnic)
 {
-	bnx2_cnic_stop(bp);
+	if (stop_cnic)
+		bnx2_cnic_stop(bp);
 	if (netif_running(bp->dev)) {
 		int i;
 
@@ -671,14 +672,15 @@ bnx2_netif_stop(struct bnx2 *bp)
 }
 
 static void
-bnx2_netif_start(struct bnx2 *bp)
+bnx2_netif_start(struct bnx2 *bp, bool start_cnic)
 {
 	if (atomic_dec_and_test(&bp->intr_sem)) {
 		if (netif_running(bp->dev)) {
 			netif_tx_wake_all_queues(bp->dev);
 			bnx2_napi_enable(bp);
 			bnx2_enable_int(bp);
-			bnx2_cnic_start(bp);
+			if (start_cnic)
+				bnx2_cnic_start(bp);
 		}
 	}
 }
@@ -6277,12 +6279,12 @@ bnx2_reset_task(struct work_struct *work)
 		return;
 	}
 
-	bnx2_netif_stop(bp);
+	bnx2_netif_stop(bp, true);
 
 	bnx2_init_nic(bp, 1);
 
 	atomic_set(&bp->intr_sem, 1);
-	bnx2_netif_start(bp);
+	bnx2_netif_start(bp, true);
 	rtnl_unlock();
 }
 
@@ -6324,7 +6326,7 @@ bnx2_vlan_rx_register(struct net_device *dev, struct vlan_group *vlgrp)
 	struct bnx2 *bp = netdev_priv(dev);
 
 	if (netif_running(dev))
-		bnx2_netif_stop(bp);
+		bnx2_netif_stop(bp, false);
 
 	bp->vlgrp = vlgrp;
 
@@ -6335,7 +6337,7 @@ bnx2_vlan_rx_register(struct net_device *dev, struct vlan_group *vlgrp)
 	if (bp->flags & BNX2_FLAG_CAN_KEEP_VLAN)
 		bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_KEEP_VLAN_UPDATE, 0, 1);
 
-	bnx2_netif_start(bp);
+	bnx2_netif_start(bp, false);
 }
 #endif
 
@@ -7055,9 +7057,9 @@ bnx2_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
 	bp->stats_ticks &= BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
 
 	if (netif_running(bp->dev)) {
-		bnx2_netif_stop(bp);
+		bnx2_netif_stop(bp, true);
 		bnx2_init_nic(bp, 0);
-		bnx2_netif_start(bp);
+		bnx2_netif_start(bp, true);
 	}
 
 	return 0;
@@ -7087,7 +7089,7 @@ bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx)
 		/* Reset will erase chipset stats; save them */
 		bnx2_save_stats(bp);
 
-		bnx2_netif_stop(bp);
+		bnx2_netif_stop(bp, true);
 		bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);
 		bnx2_free_skbs(bp);
 		bnx2_free_mem(bp);
@@ -7115,7 +7117,7 @@ bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx)
 			bnx2_setup_cnic_irq_info(bp);
 		mutex_unlock(&bp->cnic_lock);
 #endif
-		bnx2_netif_start(bp);
+		bnx2_netif_start(bp, true);
 	}
 	return 0;
 }
@@ -7368,7 +7370,7 @@ bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
 	if (etest->flags & ETH_TEST_FL_OFFLINE) {
 		int i;
 
-		bnx2_netif_stop(bp);
+		bnx2_netif_stop(bp, true);
 		bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_DIAG);
 		bnx2_free_skbs(bp);
 
@@ -7387,7 +7389,7 @@ bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
 			bnx2_shutdown_chip(bp);
 		else {
 			bnx2_init_nic(bp, 1);
-			bnx2_netif_start(bp);
+			bnx2_netif_start(bp, true);
 		}
 
 		/* wait for link up */
@@ -8381,7 +8383,7 @@ bnx2_suspend(struct pci_dev *pdev, pm_message_t state)
 		return 0;
 
 	flush_scheduled_work();
-	bnx2_netif_stop(bp);
+	bnx2_netif_stop(bp, true);
 	netif_device_detach(dev);
 	del_timer_sync(&bp->timer);
 	bnx2_shutdown_chip(bp);
@@ -8403,7 +8405,7 @@ bnx2_resume(struct pci_dev *pdev)
 	bnx2_set_power_state(bp, PCI_D0);
 	netif_device_attach(dev);
 	bnx2_init_nic(bp, 1);
-	bnx2_netif_start(bp);
+	bnx2_netif_start(bp, true);
 	return 0;
 }
 
@@ -8430,7 +8432,7 @@ static pci_ers_result_t bnx2_io_error_detected(struct pci_dev *pdev,
 	}
 
 	if (netif_running(dev)) {
-		bnx2_netif_stop(bp);
+		bnx2_netif_stop(bp, true);
 		del_timer_sync(&bp->timer);
 		bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
 	}
@@ -8487,7 +8489,7 @@ static void bnx2_io_resume(struct pci_dev *pdev)
 
 	rtnl_lock();
 	if (netif_running(dev))
-		bnx2_netif_start(bp);
+		bnx2_netif_start(bp, true);
 
 	netif_device_attach(dev);
 	rtnl_unlock();

From 587611d6e4d5c0fb5e9492cb06d9054744d69536 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Tue, 27 Apr 2010 11:28:11 +0000
Subject: [PATCH 439/464] bnx2: Update version to 2.0.9.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bnx2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 35eec2defadc7..ac90a3828f69f 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -58,8 +58,8 @@
 #include "bnx2_fw.h"
 
 #define DRV_MODULE_NAME		"bnx2"
-#define DRV_MODULE_VERSION	"2.0.8"
-#define DRV_MODULE_RELDATE	"Feb 15, 2010"
+#define DRV_MODULE_VERSION	"2.0.9"
+#define DRV_MODULE_RELDATE	"April 27, 2010"
 #define FW_MIPS_FILE_06		"bnx2/bnx2-mips-06-5.0.0.j6.fw"
 #define FW_RV2P_FILE_06		"bnx2/bnx2-rv2p-06-5.0.0.j3.fw"
 #define FW_MIPS_FILE_09		"bnx2/bnx2-mips-09-5.0.0.j9.fw"

From dacf4fc85bbd063b8108b6c21275ae4a4fcce908 Mon Sep 17 00:00:00 2001
From: Andreas Hartmann <andi@ahash.de>
Date: Tue, 27 Apr 2010 14:39:33 -0700
Subject: [PATCH 440/464] drivers/usb/net/kaweth.c: add device "Allied Telesyn
 AT-USB10 USB Ethernet Adapter"

akpm: reluctantly typed in from
https://bugzilla.kernel.org/show_bug.cgi?id=15599

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/kaweth.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 52671ea043a77..c4c334d9770f9 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -145,6 +145,7 @@ static struct usb_device_id usb_klsi_table[] = {
 	{ USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */
 	{ USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */
 	{ USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */
+	{ USB_DEVICE(0x07c9, 0xb010) }, /* Allied Telesyn AT-USB10 USB Ethernet Adapter */
 	{ USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */
 	{ USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */
 	{ USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */

From 2a9151572224ad5fe808058097be94106470a6dc Mon Sep 17 00:00:00 2001
From: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Date: Sat, 24 Apr 2010 10:37:09 +0000
Subject: [PATCH 441/464] smc91c92_cs: spin_unlock_irqrestore before calling
 smc_interrupt()

smc91c92_cs:
  * spin_unlock_irqrestore before calling smc_interrupt() in media_check()
     to avoid lockup.
  * use spin_lock_irqsave for ethtool function.

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/pcmcia/smc91c92_cs.c | 31 +++++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)

diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index fd9d6e34fda43..ccc553782a0d8 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -1804,23 +1804,30 @@ static void media_check(u_long arg)
     SMC_SELECT_BANK(1);
     media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
 
+    SMC_SELECT_BANK(saved_bank);
+    spin_unlock_irqrestore(&smc->lock, flags);
+
     /* Check for pending interrupt with watchdog flag set: with
        this, we can limp along even if the interrupt is blocked */
     if (smc->watchdog++ && ((i>>8) & i)) {
 	if (!smc->fast_poll)
 	    printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
+	local_irq_save(flags);
 	smc_interrupt(dev->irq, dev);
+	local_irq_restore(flags);
 	smc->fast_poll = HZ;
     }
     if (smc->fast_poll) {
 	smc->fast_poll--;
 	smc->media.expires = jiffies + HZ/100;
 	add_timer(&smc->media);
-	SMC_SELECT_BANK(saved_bank);
-	spin_unlock_irqrestore(&smc->lock, flags);
 	return;
     }
 
+    spin_lock_irqsave(&smc->lock, flags);
+
+    saved_bank = inw(ioaddr + BANK_SELECT);
+
     if (smc->cfg & CFG_MII_SELECT) {
 	if (smc->mii_if.phy_id < 0)
 	    goto reschedule;
@@ -1978,15 +1985,16 @@ static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 	unsigned int ioaddr = dev->base_addr;
 	u16 saved_bank = inw(ioaddr + BANK_SELECT);
 	int ret;
+	unsigned long flags;
 
-	spin_lock_irq(&smc->lock);
+	spin_lock_irqsave(&smc->lock, flags);
 	SMC_SELECT_BANK(3);
 	if (smc->cfg & CFG_MII_SELECT)
 		ret = mii_ethtool_gset(&smc->mii_if, ecmd);
 	else
 		ret = smc_netdev_get_ecmd(dev, ecmd);
 	SMC_SELECT_BANK(saved_bank);
-	spin_unlock_irq(&smc->lock);
+	spin_unlock_irqrestore(&smc->lock, flags);
 	return ret;
 }
 
@@ -1996,15 +2004,16 @@ static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 	unsigned int ioaddr = dev->base_addr;
 	u16 saved_bank = inw(ioaddr + BANK_SELECT);
 	int ret;
+	unsigned long flags;
 
-	spin_lock_irq(&smc->lock);
+	spin_lock_irqsave(&smc->lock, flags);
 	SMC_SELECT_BANK(3);
 	if (smc->cfg & CFG_MII_SELECT)
 		ret = mii_ethtool_sset(&smc->mii_if, ecmd);
 	else
 		ret = smc_netdev_set_ecmd(dev, ecmd);
 	SMC_SELECT_BANK(saved_bank);
-	spin_unlock_irq(&smc->lock);
+	spin_unlock_irqrestore(&smc->lock, flags);
 	return ret;
 }
 
@@ -2014,12 +2023,13 @@ static u32 smc_get_link(struct net_device *dev)
 	unsigned int ioaddr = dev->base_addr;
 	u16 saved_bank = inw(ioaddr + BANK_SELECT);
 	u32 ret;
+	unsigned long flags;
 
-	spin_lock_irq(&smc->lock);
+	spin_lock_irqsave(&smc->lock, flags);
 	SMC_SELECT_BANK(3);
 	ret = smc_link_ok(dev);
 	SMC_SELECT_BANK(saved_bank);
-	spin_unlock_irq(&smc->lock);
+	spin_unlock_irqrestore(&smc->lock, flags);
 	return ret;
 }
 
@@ -2056,16 +2066,17 @@ static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
 	int rc = 0;
 	u16 saved_bank;
 	unsigned int ioaddr = dev->base_addr;
+	unsigned long flags;
 
 	if (!netif_running(dev))
 		return -EINVAL;
 
-	spin_lock_irq(&smc->lock);
+	spin_lock_irqsave(&smc->lock, flags);
 	saved_bank = inw(ioaddr + BANK_SELECT);
 	SMC_SELECT_BANK(3);
 	rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
 	SMC_SELECT_BANK(saved_bank);
-	spin_unlock_irq(&smc->lock);
+	spin_unlock_irqrestore(&smc->lock, flags);
 	return rc;
 }
 

From d87ff58fda926fe5cb01214cccf1c72422ac776d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Mon, 26 Apr 2010 23:20:12 +0000
Subject: [PATCH 442/464] ipheth: potential null dereferences on error path
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The calls to usb_free_buffer() dereference rx_urb and tx_urb in the
parameter list but those could be NULL.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: L. Alberto Giménez <agimenez@sysvalve.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/ipheth.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index fd1033130a81f..418825d26f908 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -122,25 +122,25 @@ static int ipheth_alloc_urbs(struct ipheth_device *iphone)
 
 	tx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (tx_urb == NULL)
-		goto error;
+		goto error_nomem;
 
 	rx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (rx_urb == NULL)
-		goto error;
+		goto free_tx_urb;
 
 	tx_buf = usb_buffer_alloc(iphone->udev,
 				  IPHETH_BUF_SIZE,
 				  GFP_KERNEL,
 				  &tx_urb->transfer_dma);
 	if (tx_buf == NULL)
-		goto error;
+		goto free_rx_urb;
 
 	rx_buf = usb_buffer_alloc(iphone->udev,
 				  IPHETH_BUF_SIZE,
 				  GFP_KERNEL,
 				  &rx_urb->transfer_dma);
 	if (rx_buf == NULL)
-		goto error;
+		goto free_tx_buf;
 
 
 	iphone->tx_urb = tx_urb;
@@ -149,13 +149,14 @@ static int ipheth_alloc_urbs(struct ipheth_device *iphone)
 	iphone->rx_buf = rx_buf;
 	return 0;
 
-error:
-	usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, rx_buf,
-			rx_urb->transfer_dma);
+free_tx_buf:
 	usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
 			tx_urb->transfer_dma);
+free_rx_urb:
 	usb_free_urb(rx_urb);
+free_tx_urb:
 	usb_free_urb(tx_urb);
+error_nomem:
 	return -ENOMEM;
 }
 

From b59ec78cdcc57e02bc3dddfa7134a2f0fd15c34d Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 27 Apr 2010 14:05:11 -0700
Subject: [PATCH 443/464] keys: don't need to use RCU in keyring_read() as
 semaphore is held

keyring_read() doesn't need to use rcu_dereference() to access the keyring
payload as the caller holds the key semaphore to prevent modifications
from happening whilst the data is read out.

This should solve the following warning:

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
security/keys/keyring.c:204 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
1 lock held by keyctl/2144:
 #0:  (&key->sem){+++++.}, at: [<ffffffff81177f7c>] keyctl_read_key+0x9c/0xcf

stack backtrace:
Pid: 2144, comm: keyctl Not tainted 2.6.34-rc2-cachefs #113
Call Trace:
 [<ffffffff8105121f>] lockdep_rcu_dereference+0xaa/0xb2
 [<ffffffff811762d5>] keyring_read+0x4d/0xe7
 [<ffffffff81177f8c>] keyctl_read_key+0xac/0xcf
 [<ffffffff811788d4>] sys_keyctl+0x75/0xb9
 [<ffffffff81001eeb>] system_call_fastpath+0x16/0x1b

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
---
 security/keys/keyring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index e814d2109f8ef..dd7cd0f8e13cf 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -201,7 +201,7 @@ static long keyring_read(const struct key *keyring,
 	int loop, ret;
 
 	ret = 0;
-	klist = rcu_dereference(keyring->payload.subscriptions);
+	klist = keyring->payload.subscriptions;
 
 	if (klist) {
 		/* calculate how much data we could return */

From 9e584fbbd9fd4f0f10b8aafc9982df8d0b553e35 Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Tue, 27 Apr 2010 13:13:04 -0700
Subject: [PATCH 444/464] arch/avr32: fix build failure caused by wrong
 prototype

This patch fixes a build failure introduced by 1d8393171 ("avr32: use
generic ptrace_resume code") which had the static keyword as a leftover.

  arch/avr32/kernel/ptrace.c:32: error: static declaration of `user_enable_single_step' follows non-static declaration
  include/linux/ptrace.h:268: error: previous declaration of `user_enable_single_step' was here

References:
[1]http://kisskb.ellerman.id.au/kisskb/buildresult/2448162/

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/avr32/kernel/ptrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index dd5b882aab408..5e73c25f8f85b 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -28,7 +28,7 @@ static struct pt_regs *get_user_regs(struct task_struct *tsk)
 				  THREAD_SIZE - sizeof(struct pt_regs));
 }
 
-static void user_enable_single_step(struct task_struct *tsk)
+void user_enable_single_step(struct task_struct *tsk)
 {
 	pr_debug("user_enable_single_step: pid=%u, PC=0x%08lx, SR=0x%08lx\n",
 		 tsk->pid, task_pt_regs(tsk)->pc, task_pt_regs(tsk)->sr);

From 3835541dd481091c4dbf5ef83c08aed12e50fd61 Mon Sep 17 00:00:00 2001
From: Jerome Marchand <jmarchan@redhat.com>
Date: Tue, 27 Apr 2010 13:13:06 -0700
Subject: [PATCH 445/464] procfs: fix tid fdinfo

Correct the file_operations struct in fdinfo entry of tid_base_stuff[].

Presently /proc/*/task/*/fdinfo contains symlinks to opened files like
/proc/*/fd/.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 7621db800a74b..8418fcc0a6abd 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2909,7 +2909,7 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
  */
 static const struct pid_entry tid_base_stuff[] = {
 	DIR("fd",        S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
-	DIR("fdinfo",    S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fd_operations),
+	DIR("fdinfo",    S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
 	REG("environ",   S_IRUSR, proc_environ_operations),
 	INF("auxv",      S_IRUSR, proc_pid_auxv),
 	ONE("status",    S_IRUGO, proc_pid_status),

From a2cb9aeb3c9b2475955cec328487484034f414e4 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@misterjones.org>
Date: Tue, 27 Apr 2010 13:13:07 -0700
Subject: [PATCH 446/464] gpio: fix pca953x set_type 'scheduling while atomic'
 bug

Bill Gatliff reported the following bug when using the irq_chip facility
of the pca953x driver on a PPC platform:

BUG: scheduling while atomic: insmod/1530/0x00000002

He traced it back to an i2c transaction in pca953x_irq_set_type(), which
can be called with interrupt disabled (from __setup_irq()).  As the i2c
controller can sleep while sending a message, this qualifies as a bad
idea.

This patch moves the i2c transaction to pca953x_irq_bus_sync_unlock(),
where it is actually safe to send an i2c message.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Marc Zyngier <maz@misterjones.org>
Reported-by: Bill Gatliff <bgat@billgatliff.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/gpio/pca953x.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 7d521e1d17e14..b827c976dc621 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -252,6 +252,18 @@ static void pca953x_irq_bus_lock(unsigned int irq)
 static void pca953x_irq_bus_sync_unlock(unsigned int irq)
 {
 	struct pca953x_chip *chip = get_irq_chip_data(irq);
+	uint16_t new_irqs;
+	uint16_t level;
+
+	/* Look for any newly setup interrupt */
+	new_irqs = chip->irq_trig_fall | chip->irq_trig_raise;
+	new_irqs &= ~chip->reg_direction;
+
+	while (new_irqs) {
+		level = __ffs(new_irqs);
+		pca953x_gpio_direction_input(&chip->gpio_chip, level);
+		new_irqs &= ~(1 << level);
+	}
 
 	mutex_unlock(&chip->irq_lock);
 }
@@ -278,7 +290,7 @@ static int pca953x_irq_set_type(unsigned int irq, unsigned int type)
 	else
 		chip->irq_trig_raise &= ~mask;
 
-	return pca953x_gpio_direction_input(&chip->gpio_chip, level);
+	return 0;
 }
 
 static struct irq_chip pca953x_irq_chip = {

From 03449cd9eaa4fa3a7faa4a59474bafe2e90bd143 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 27 Apr 2010 13:13:08 -0700
Subject: [PATCH 447/464] keys: the request_key() syscall should link an
 existing key to the dest keyring

The request_key() system call and request_key_and_link() should make a
link from an existing key to the destination keyring (if supplied), not
just from a new key to the destination keyring.

This can be tested by:

	ring=`keyctl newring fred @s`
	keyctl request2 user debug:a a
	keyctl request user debug:a $ring
	keyctl list $ring

If it says:

	keyring is empty

then it didn't work.  If it shows something like:

	1 key in keyring:
	1070462727: --alswrv     0     0 user: debug:a

then it did.

request_key() system call is meant to recursively search all your keyrings for
the key you desire, and, optionally, if it doesn't exist, call out to userspace
to create one for you.

If request_key() finds or creates a key, it should, optionally, create a link
to that key from the destination keyring specified.

Therefore, if, after a successful call to request_key() with a desination
keyring specified, you see the destination keyring empty, the code didn't work
correctly.

If you see the found key in the keyring, then it did - which is what the patch
is required for.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 security/keys/request_key.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index ea97c3120d662..d737cea5347cf 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -339,8 +339,10 @@ static int construct_alloc_key(struct key_type *type,
 
 key_already_present:
 	mutex_unlock(&key_construction_mutex);
-	if (dest_keyring)
+	if (dest_keyring) {
+		__key_link(dest_keyring, key_ref_to_ptr(key_ref));
 		up_write(&dest_keyring->sem);
+	}
 	mutex_unlock(&user->cons_lock);
 	key_put(key);
 	*_key = key = key_ref_to_ptr(key_ref);
@@ -431,6 +433,11 @@ struct key *request_key_and_link(struct key_type *type,
 
 	if (!IS_ERR(key_ref)) {
 		key = key_ref_to_ptr(key_ref);
+		if (dest_keyring) {
+			construct_get_dest_keyring(&dest_keyring);
+			key_link(dest_keyring, key);
+			key_put(dest_keyring);
+		}
 	} else if (PTR_ERR(key_ref) != -EAGAIN) {
 		key = ERR_CAST(key_ref);
 	} else  {

From 761ed01b35ca32bfd4166cc3862ae80ee33e3a4b Mon Sep 17 00:00:00 2001
From: Andy Fleming <afleming@freescale.com>
Date: Tue, 27 Apr 2010 16:43:31 -0700
Subject: [PATCH 448/464] gianfar: Wait for both RX and TX to stop

When gracefully stopping the controller, the driver was continuing if
*either* RX or TX had stopped.  We need to wait for both, or the
controller could get into an invalid state.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/gianfar.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index df49af3821599..4e97ca182997e 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -1511,9 +1511,9 @@ static void gfar_halt_nodisable(struct net_device *dev)
 		tempval |= (DMACTRL_GRS | DMACTRL_GTS);
 		gfar_write(&regs->dmactrl, tempval);
 
-		while (!(gfar_read(&regs->ievent) &
-			 (IEVENT_GRSC | IEVENT_GTSC)))
-			cpu_relax();
+		spin_event_timeout(((gfar_read(&regs->ievent) &
+			 (IEVENT_GRSC | IEVENT_GTSC)) ==
+			 (IEVENT_GRSC | IEVENT_GTSC)), -1, 0);
 	}
 }
 

From 477fffb082920476cc26f238d65538ccb8d601e1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Wed, 21 Apr 2010 23:52:01 +0000
Subject: [PATCH 449/464] bluetooth: handle l2cap_create_connless_pdu() errors

l2cap_create_connless_pdu() can sometimes return ERR_PTR(-ENOMEM) or
ERR_PTR(-EFAULT).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bluetooth/l2cap.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 99d68c34e4f11..9753b690a8b35 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1626,7 +1626,10 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
 	/* Connectionless channel */
 	if (sk->sk_type == SOCK_DGRAM) {
 		skb = l2cap_create_connless_pdu(sk, msg, len);
-		err = l2cap_do_send(sk, skb);
+		if (IS_ERR(skb))
+			err = PTR_ERR(skb);
+		else
+			err = l2cap_do_send(sk, skb);
 		goto done;
 	}
 

From 55964d72d63b15df49a5df11ef91dc8601270815 Mon Sep 17 00:00:00 2001
From: Torgny Johansson <torgny.johansson@ericsson.com>
Date: Tue, 27 Apr 2010 17:07:40 -0700
Subject: [PATCH 450/464] cdc_ether: fix autosuspend for mbm devices

Autosuspend works until you bring the wwan interface up, then the
device does not enter autosuspend anymore.

The following patch fixes the problem by setting the .manage_power
field in the mbm_info struct to the same as in the cdc_info struct
(cdc_manager_power).

Signed-off-by: Torgny Johansson <torgny.johansson@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ether.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index c8cdb7f30adc0..3547cf13d219c 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -431,6 +431,7 @@ static const struct driver_info mbm_info = {
 	.bind = 	cdc_bind,
 	.unbind =	usbnet_cdc_unbind,
 	.status =	cdc_status,
+	.manage_power =	cdc_manage_power,
 };
 
 /*-------------------------------------------------------------------------*/

From eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d Mon Sep 17 00:00:00 2001
From: Elina Pasheva <epasheva@sierrawireless.com>
Date: Tue, 27 Apr 2010 18:06:41 -0700
Subject: [PATCH 451/464] net/usb: add sierra_net.c driver

Re-submitted based on comments from netdev community.
Summary of the changes:
1. Improved error handling.
2. Added the missing timeout arguments to usb_control_msg().

The following is a new Linux driver which exposes certain models of Sierra
Wireless modems to the operating system as Network Interface Cards (NICs).

This driver requires a version of the sierra.c driver which supports
blacklisting to work properly. The blacklist in sierra.c rejects the interfaces
claimed by sierra_net.c. Likewise, the sierra_net.c driver only accepts
(i.e. whitelists) the interface(s) used for USB-to-WWAN traffic.
The version of sierra.c which supports blacklisting is
available from the sierra wireless knowledge base page for older kernels. It is
also available in Linux kernel starting from version 2.6.31.

This driver works with all Sierra Wireless devices configured with PID=68A3
like USB305, USB306 provided the corresponding firmware version is I2.0
(for USB305) or M3.0 (for USB306) and later.
This driver will not work with earlier firmware versions than the ones shown
above. In this case the driver will issue an error message indicating
incompatibility and will not serve the device's USB-to-WWAN interface.

Sierra_net.c sits atop a pre-existing Linux driver called usbnet.c.
A series of hook functions are provided in sierra_net.c which are called by
usbnet.c in response to a particular condition such as receipt or transmission
of a data packet. As such, usbnet.c does most of the work of making
a modem appear to the system as a network device and for properly exchanging
traffic between the USB subsystem and the Network card interface.
Sierra_net.c is concerned with managing the data exchanged between the
USB-to-WWAN interface and the upper layers of the operating system.

Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Rory Filer <rfiler@sierrawireless.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/Kconfig      |   10 +
 drivers/net/usb/Makefile     |    1 +
 drivers/net/usb/sierra_net.c | 1001 ++++++++++++++++++++++++++++++++++
 3 files changed, 1012 insertions(+)
 create mode 100644 drivers/net/usb/sierra_net.c

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 63be4caec70ef..5d58abc224f40 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -397,4 +397,14 @@ config USB_IPHETH
 
 	  For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
 
+config USB_SIERRA_NET
+	tristate "USB-to-WWAN Driver for Sierra Wireless modems"
+	depends on USB_USBNET
+	default y
+	help
+	  Choose this option if you have a Sierra Wireless USB-to-WWAN device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sierra_net.
+
 endmenu
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index edb09c0ddf8e1..b13a279663ba1 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -24,4 +24,5 @@ obj-$(CONFIG_USB_USBNET)	+= usbnet.o
 obj-$(CONFIG_USB_NET_INT51X1)	+= int51x1.o
 obj-$(CONFIG_USB_CDC_PHONET)	+= cdc-phonet.o
 obj-$(CONFIG_USB_IPHETH)	+= ipheth.o
+obj-$(CONFIG_USB_SIERRA_NET)	+= sierra_net.o
 
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
new file mode 100644
index 0000000000000..a44f9e0ea0988
--- /dev/null
+++ b/drivers/net/usb/sierra_net.c
@@ -0,0 +1,1001 @@
+/*
+ * USB-to-WWAN Driver for Sierra Wireless modems
+ *
+ * Copyright (C) 2008, 2009, 2010 Paxton Smith, Matthew Safar, Rory Filer
+ *                          <linux@sierrawireless.com>
+ *
+ * Portions of this based on the cdc_ether driver by David Brownell (2003-2005)
+ * and Ole Andre Vadla Ravnas (ActiveSync) (2006).
+ *
+ * IMPORTANT DISCLAIMER: This driver is not commercially supported by
+ * Sierra Wireless. Use at your own risk.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define DRIVER_VERSION "v.2.0"
+#define DRIVER_AUTHOR "Paxton Smith, Matthew Safar, Rory Filer"
+#define DRIVER_DESC "USB-to-WWAN Driver for Sierra Wireless modems"
+static const char driver_name[] = "sierra_net";
+
+/* if defined debug messages enabled */
+/*#define	DEBUG*/
+
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <net/ip.h>
+#include <net/udp.h>
+#include <asm/unaligned.h>
+#include <linux/usb/usbnet.h>
+
+#define SWI_USB_REQUEST_GET_FW_ATTR	0x06
+#define SWI_GET_FW_ATTR_MASK		0x08
+
+/* atomic counter partially included in MAC address to make sure 2 devices
+ * do not end up with the same MAC - concept breaks in case of > 255 ifaces
+ */
+static	atomic_t iface_counter = ATOMIC_INIT(0);
+
+/*
+ * SYNC Timer Delay definition used to set the expiry time
+ */
+#define SIERRA_NET_SYNCDELAY (2*HZ)
+
+/* Max. MTU supported. The modem buffers are limited to 1500 */
+#define SIERRA_NET_MAX_SUPPORTED_MTU	1500
+
+/* The SIERRA_NET_USBCTL_BUF_LEN defines a buffer size allocated for control
+ * message reception ... and thus the max. received packet.
+ * (May be the cause for parse_hip returning -EINVAL)
+ */
+#define SIERRA_NET_USBCTL_BUF_LEN	1024
+
+/* list of interface numbers - used for constructing interface lists */
+struct sierra_net_iface_info {
+	const u32 infolen;	/* number of interface numbers on list */
+	const u8  *ifaceinfo;	/* pointer to the array holding the numbers */
+};
+
+struct sierra_net_info_data {
+	u16 rx_urb_size;
+	struct sierra_net_iface_info whitelist;
+};
+
+/* Private data structure */
+struct sierra_net_data {
+
+	u8 ethr_hdr_tmpl[ETH_HLEN]; /* ethernet header template for rx'd pkts */
+
+	u16 link_up;		/* air link up or down */
+	u8 tx_hdr_template[4];	/* part of HIP hdr for tx'd packets */
+
+	u8 sync_msg[4];		/* SYNC message */
+	u8 shdwn_msg[4];	/* Shutdown message */
+
+	/* Backpointer to the container */
+	struct usbnet *usbnet;
+
+	u8 ifnum;	/* interface number */
+
+/* Bit masks, must be a power of 2 */
+#define SIERRA_NET_EVENT_RESP_AVAIL    0x01
+#define SIERRA_NET_TIMER_EXPIRY        0x02
+	unsigned long kevent_flags;
+	struct work_struct sierra_net_kevent;
+	struct timer_list sync_timer; /* For retrying SYNC sequence */
+};
+
+struct param {
+	int is_present;
+	union {
+		void  *ptr;
+		u32    dword;
+		u16    word;
+		u8     byte;
+	};
+};
+
+/* HIP message type */
+#define SIERRA_NET_HIP_EXTENDEDID	0x7F
+#define SIERRA_NET_HIP_HSYNC_ID		0x60	/* Modem -> host */
+#define SIERRA_NET_HIP_RESTART_ID	0x62	/* Modem -> host */
+#define SIERRA_NET_HIP_MSYNC_ID		0x20	/* Host -> modem */
+#define SIERRA_NET_HIP_SHUTD_ID		0x26	/* Host -> modem */
+
+#define SIERRA_NET_HIP_EXT_IP_IN_ID   0x0202
+#define SIERRA_NET_HIP_EXT_IP_OUT_ID  0x0002
+
+/* 3G UMTS Link Sense Indication definitions */
+#define SIERRA_NET_HIP_LSI_UMTSID	0x78
+
+/* Reverse Channel Grant Indication HIP message */
+#define SIERRA_NET_HIP_RCGI		0x64
+
+/* LSI Protocol types */
+#define SIERRA_NET_PROTOCOL_UMTS      0x01
+/* LSI Coverage */
+#define SIERRA_NET_COVERAGE_NONE      0x00
+#define SIERRA_NET_COVERAGE_NOPACKET  0x01
+
+/* LSI Session */
+#define SIERRA_NET_SESSION_IDLE       0x00
+/* LSI Link types */
+#define SIERRA_NET_AS_LINK_TYPE_IPv4  0x00
+
+struct lsi_umts {
+	u8 protocol;
+	u8 unused1;
+	__be16 length;
+	/* eventually use a union for the rest - assume umts for now */
+	u8 coverage;
+	u8 unused2[41];
+	u8 session_state;
+	u8 unused3[33];
+	u8 link_type;
+	u8 pdp_addr_len; /* NW-supplied PDP address len */
+	u8 pdp_addr[16]; /* NW-supplied PDP address (bigendian)) */
+	u8 unused4[23];
+	u8 dns1_addr_len; /* NW-supplied 1st DNS address len (bigendian) */
+	u8 dns1_addr[16]; /* NW-supplied 1st DNS address */
+	u8 dns2_addr_len; /* NW-supplied 2nd DNS address len */
+	u8 dns2_addr[16]; /* NW-supplied 2nd DNS address (bigendian)*/
+	u8 wins1_addr_len; /* NW-supplied 1st Wins address len */
+	u8 wins1_addr[16]; /* NW-supplied 1st Wins address (bigendian)*/
+	u8 wins2_addr_len; /* NW-supplied 2nd Wins address len */
+	u8 wins2_addr[16]; /* NW-supplied 2nd Wins address (bigendian) */
+	u8 unused5[4];
+	u8 gw_addr_len; /* NW-supplied GW address len */
+	u8 gw_addr[16]; /* NW-supplied GW address (bigendian) */
+	u8 reserved[8];
+} __attribute__ ((packed));
+
+#define SIERRA_NET_LSI_COMMON_LEN      4
+#define SIERRA_NET_LSI_UMTS_LEN        (sizeof(struct lsi_umts))
+#define SIERRA_NET_LSI_UMTS_STATUS_LEN \
+	(SIERRA_NET_LSI_UMTS_LEN - SIERRA_NET_LSI_COMMON_LEN)
+
+/* Forward definitions */
+static void sierra_sync_timer(unsigned long syncdata);
+static int sierra_net_change_mtu(struct net_device *net, int new_mtu);
+
+/* Our own net device operations structure */
+static const struct net_device_ops sierra_net_device_ops = {
+	.ndo_open               = usbnet_open,
+	.ndo_stop               = usbnet_stop,
+	.ndo_start_xmit         = usbnet_start_xmit,
+	.ndo_tx_timeout         = usbnet_tx_timeout,
+	.ndo_change_mtu         = sierra_net_change_mtu,
+	.ndo_set_mac_address    = eth_mac_addr,
+	.ndo_validate_addr      = eth_validate_addr,
+};
+
+/* get private data associated with passed in usbnet device */
+static inline struct sierra_net_data *sierra_net_get_private(struct usbnet *dev)
+{
+	return (struct sierra_net_data *)dev->data[0];
+}
+
+/* set private data associated with passed in usbnet device */
+static inline void sierra_net_set_private(struct usbnet *dev,
+			struct sierra_net_data *priv)
+{
+	dev->data[0] = (unsigned long)priv;
+}
+
+/* is packet IPv4 */
+static inline int is_ip(struct sk_buff *skb)
+{
+	return (skb->protocol == cpu_to_be16(ETH_P_IP));
+}
+
+/*
+ * check passed in packet and make sure that:
+ *  - it is linear (no scatter/gather)
+ *  - it is ethernet (mac_header properly set)
+ */
+static int check_ethip_packet(struct sk_buff *skb, struct usbnet *dev)
+{
+	skb_reset_mac_header(skb); /* ethernet header */
+
+	if (skb_is_nonlinear(skb)) {
+		netdev_err(dev->net, "Non linear buffer-dropping\n");
+		return 0;
+	}
+
+	if (!pskb_may_pull(skb, ETH_HLEN))
+		return 0;
+	skb->protocol = eth_hdr(skb)->h_proto;
+
+	return 1;
+}
+
+static const u8 *save16bit(struct param *p, const u8 *datap)
+{
+	p->is_present = 1;
+	p->word = get_unaligned_be16(datap);
+	return datap + sizeof(p->word);
+}
+
+static const u8 *save8bit(struct param *p, const u8 *datap)
+{
+	p->is_present = 1;
+	p->byte = *datap;
+	return datap + sizeof(p->byte);
+}
+
+/*----------------------------------------------------------------------------*
+ *                              BEGIN HIP                                     *
+ *----------------------------------------------------------------------------*/
+/* HIP header */
+#define SIERRA_NET_HIP_HDR_LEN 4
+/* Extended HIP header */
+#define SIERRA_NET_HIP_EXT_HDR_LEN 6
+
+struct hip_hdr {
+	int    hdrlen;
+	struct param payload_len;
+	struct param msgid;
+	struct param msgspecific;
+	struct param extmsgid;
+};
+
+static int parse_hip(const u8 *buf, const u32 buflen, struct hip_hdr *hh)
+{
+	const u8 *curp = buf;
+	int    padded;
+
+	if (buflen < SIERRA_NET_HIP_HDR_LEN)
+		return -EPROTO;
+
+	curp = save16bit(&hh->payload_len, curp);
+	curp = save8bit(&hh->msgid, curp);
+	curp = save8bit(&hh->msgspecific, curp);
+
+	padded = hh->msgid.byte & 0x80;
+	hh->msgid.byte &= 0x7F;			/* 7 bits */
+
+	hh->extmsgid.is_present = (hh->msgid.byte == SIERRA_NET_HIP_EXTENDEDID);
+	if (hh->extmsgid.is_present) {
+		if (buflen < SIERRA_NET_HIP_EXT_HDR_LEN)
+			return -EPROTO;
+
+		hh->payload_len.word &= 0x3FFF; /* 14 bits */
+
+		curp = save16bit(&hh->extmsgid, curp);
+		hh->extmsgid.word &= 0x03FF;	/* 10 bits */
+
+		hh->hdrlen = SIERRA_NET_HIP_EXT_HDR_LEN;
+	} else {
+		hh->payload_len.word &= 0x07FF;	/* 11 bits */
+		hh->hdrlen = SIERRA_NET_HIP_HDR_LEN;
+	}
+
+	if (padded) {
+		hh->hdrlen++;
+		hh->payload_len.word--;
+	}
+
+	/* if real packet shorter than the claimed length */
+	if (buflen < (hh->hdrlen + hh->payload_len.word))
+		return -EINVAL;
+
+	return 0;
+}
+
+static void build_hip(u8 *buf, const u16 payloadlen,
+		struct sierra_net_data *priv)
+{
+	/* the following doesn't have the full functionality. We
+	 * currently build only one kind of header, so it is faster this way
+	 */
+	put_unaligned_be16(payloadlen, buf);
+	memcpy(buf+2, priv->tx_hdr_template, sizeof(priv->tx_hdr_template));
+}
+/*----------------------------------------------------------------------------*
+ *                              END HIP                                       *
+ *----------------------------------------------------------------------------*/
+
+static int sierra_net_send_cmd(struct usbnet *dev,
+		u8 *cmd, int cmdlen, const char * cmd_name)
+{
+	struct sierra_net_data *priv = sierra_net_get_private(dev);
+	int  status;
+
+	status = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+			USB_CDC_SEND_ENCAPSULATED_COMMAND,
+			USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE,	0,
+			priv->ifnum, cmd, cmdlen, USB_CTRL_SET_TIMEOUT);
+
+	if (status != cmdlen && status != -ENODEV)
+		netdev_err(dev->net, "Submit %s failed %d\n", cmd_name, status);
+
+	return status;
+}
+
+static int sierra_net_send_sync(struct usbnet *dev)
+{
+	int  status;
+	struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+
+	status = sierra_net_send_cmd(dev, priv->sync_msg,
+			sizeof(priv->sync_msg), "SYNC");
+
+	return status;
+}
+
+static void sierra_net_set_ctx_index(struct sierra_net_data *priv, u8 ctx_ix)
+{
+	dev_dbg(&(priv->usbnet->udev->dev), "%s %d", __func__, ctx_ix);
+	priv->tx_hdr_template[0] = 0x3F;
+	priv->tx_hdr_template[1] = ctx_ix;
+	*((u16 *)&priv->tx_hdr_template[2]) =
+		cpu_to_be16(SIERRA_NET_HIP_EXT_IP_OUT_ID);
+}
+
+static inline int sierra_net_is_valid_addrlen(u8 len)
+{
+	return (len == sizeof(struct in_addr));
+}
+
+static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
+{
+	struct lsi_umts *lsi = (struct lsi_umts *)data;
+
+	if (datalen < sizeof(struct lsi_umts)) {
+		netdev_err(dev->net, "%s: Data length %d, exp %Zu\n",
+				__func__, datalen,
+				sizeof(struct lsi_umts));
+		return -1;
+	}
+
+	if (lsi->length != cpu_to_be16(SIERRA_NET_LSI_UMTS_STATUS_LEN)) {
+		netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
+				__func__, be16_to_cpu(lsi->length),
+				(u32)SIERRA_NET_LSI_UMTS_STATUS_LEN);
+		return -1;
+	}
+
+	/* Validate the protocol  - only support UMTS for now */
+	if (lsi->protocol != SIERRA_NET_PROTOCOL_UMTS) {
+		netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
+			lsi->protocol);
+		return -1;
+	}
+
+	/* Validate the link type */
+	if (lsi->link_type != SIERRA_NET_AS_LINK_TYPE_IPv4) {
+		netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
+			lsi->link_type);
+		return -1;
+	}
+
+	/* Validate the coverage */
+	if (lsi->coverage == SIERRA_NET_COVERAGE_NONE
+	   || lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
+		netdev_err(dev->net, "No coverage, 0x%02x\n", lsi->coverage);
+		return 0;
+	}
+
+	/* Validate the session state */
+	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
+		netdev_err(dev->net, "Session idle, 0x%02x\n",
+			lsi->session_state);
+		return 0;
+	}
+
+	/* Set link_sense true */
+	return 1;
+}
+
+static void sierra_net_handle_lsi(struct usbnet *dev, char *data,
+		struct hip_hdr	*hh)
+{
+	struct sierra_net_data *priv = sierra_net_get_private(dev);
+	int link_up;
+
+	link_up = sierra_net_parse_lsi(dev, data + hh->hdrlen,
+					hh->payload_len.word);
+	if (link_up < 0) {
+		netdev_err(dev->net, "Invalid LSI\n");
+		return;
+	}
+	if (link_up) {
+		sierra_net_set_ctx_index(priv, hh->msgspecific.byte);
+		priv->link_up = 1;
+		netif_carrier_on(dev->net);
+	} else {
+		priv->link_up = 0;
+		netif_carrier_off(dev->net);
+	}
+}
+
+static void sierra_net_dosync(struct usbnet *dev)
+{
+	int status;
+	struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+
+	/* tell modem we are ready */
+	status = sierra_net_send_sync(dev);
+	if (status < 0)
+		netdev_err(dev->net,
+			"Send SYNC failed, status %d\n", status);
+	status = sierra_net_send_sync(dev);
+	if (status < 0)
+		netdev_err(dev->net,
+			"Send SYNC failed, status %d\n", status);
+
+	/* Now, start a timer and make sure we get the Restart Indication */
+	priv->sync_timer.function = sierra_sync_timer;
+	priv->sync_timer.data = (unsigned long) dev;
+	priv->sync_timer.expires = jiffies + SIERRA_NET_SYNCDELAY;
+	add_timer(&priv->sync_timer);
+}
+
+static void sierra_net_kevent(struct work_struct *work)
+{
+	struct sierra_net_data *priv =
+		container_of(work, struct sierra_net_data, sierra_net_kevent);
+	struct usbnet *dev = priv->usbnet;
+	int  len;
+	int  err;
+	u8  *buf;
+	u8   ifnum;
+
+	if (test_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags)) {
+		clear_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags);
+
+		/* Query the modem for the LSI message */
+		buf = kzalloc(SIERRA_NET_USBCTL_BUF_LEN, GFP_KERNEL);
+		if (!buf) {
+			netdev_err(dev->net,
+				"failed to allocate buf for LS msg\n");
+			return;
+		}
+		ifnum = priv->ifnum;
+		len = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+				USB_CDC_GET_ENCAPSULATED_RESPONSE,
+				USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE,
+				0, ifnum, buf, SIERRA_NET_USBCTL_BUF_LEN,
+				USB_CTRL_SET_TIMEOUT);
+
+		if (len < 0) {
+			netdev_err(dev->net,
+				"usb_control_msg failed, status %d\n", len);
+		} else {
+			struct hip_hdr	hh;
+
+			dev_dbg(&dev->udev->dev, "%s: Received status message,"
+				" %04x bytes", __func__, len);
+
+			err = parse_hip(buf, len, &hh);
+			if (err) {
+				netdev_err(dev->net, "%s: Bad packet,"
+					" parse result %d\n", __func__, err);
+				kfree(buf);
+				return;
+			}
+
+			/* Validate packet length */
+			if (len != hh.hdrlen + hh.payload_len.word) {
+				netdev_err(dev->net, "%s: Bad packet, received"
+					" %d, expected %d\n",	__func__, len,
+					hh.hdrlen + hh.payload_len.word);
+				kfree(buf);
+				return;
+			}
+
+			/* Switch on received message types */
+			switch (hh.msgid.byte) {
+			case SIERRA_NET_HIP_LSI_UMTSID:
+				dev_dbg(&dev->udev->dev, "LSI for ctx:%d",
+					hh.msgspecific.byte);
+				sierra_net_handle_lsi(dev, buf, &hh);
+				break;
+			case SIERRA_NET_HIP_RESTART_ID:
+				dev_dbg(&dev->udev->dev, "Restart reported: %d,"
+						" stopping sync timer",
+						hh.msgspecific.byte);
+				/* Got sync resp - stop timer & clear mask */
+				del_timer_sync(&priv->sync_timer);
+				clear_bit(SIERRA_NET_TIMER_EXPIRY,
+					  &priv->kevent_flags);
+				break;
+			case SIERRA_NET_HIP_HSYNC_ID:
+				dev_dbg(&dev->udev->dev, "SYNC received");
+				err = sierra_net_send_sync(dev);
+				if (err < 0)
+					netdev_err(dev->net,
+						"Send SYNC failed %d\n", err);
+				break;
+			case SIERRA_NET_HIP_EXTENDEDID:
+				netdev_err(dev->net, "Unrecognized HIP msg, "
+					"extmsgid 0x%04x\n", hh.extmsgid.word);
+				break;
+			case SIERRA_NET_HIP_RCGI:
+				/* Ignored */
+				break;
+			default:
+				netdev_err(dev->net, "Unrecognized HIP msg, "
+					"msgid 0x%02x\n", hh.msgid.byte);
+				break;
+			}
+		}
+		kfree(buf);
+	}
+	/* The sync timer bit might be set */
+	if (test_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags)) {
+		clear_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags);
+		dev_dbg(&dev->udev->dev, "Deferred sync timer expiry");
+		sierra_net_dosync(priv->usbnet);
+	}
+
+	if (priv->kevent_flags)
+		dev_dbg(&dev->udev->dev, "sierra_net_kevent done, "
+			"kevent_flags = 0x%lx", priv->kevent_flags);
+}
+
+static void sierra_net_defer_kevent(struct usbnet *dev, int work)
+{
+	struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+	set_bit(work, &priv->kevent_flags);
+	schedule_work(&priv->sierra_net_kevent);
+}
+
+/*
+ * Sync Retransmit Timer Handler. On expiry, kick the work queue
+ */
+void sierra_sync_timer(unsigned long syncdata)
+{
+	struct usbnet *dev = (struct usbnet *)syncdata;
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+	/* Kick the tasklet */
+	sierra_net_defer_kevent(dev, SIERRA_NET_TIMER_EXPIRY);
+}
+
+static void sierra_net_status(struct usbnet *dev, struct urb *urb)
+{
+	struct usb_cdc_notification *event;
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+
+	if (urb->actual_length < sizeof *event)
+		return;
+
+	/* Add cases to handle other standard notifications. */
+	event = urb->transfer_buffer;
+	switch (event->bNotificationType) {
+	case USB_CDC_NOTIFY_NETWORK_CONNECTION:
+	case USB_CDC_NOTIFY_SPEED_CHANGE:
+		/* USB 305 sends those */
+		break;
+	case USB_CDC_NOTIFY_RESPONSE_AVAILABLE:
+		sierra_net_defer_kevent(dev, SIERRA_NET_EVENT_RESP_AVAIL);
+		break;
+	default:
+		netdev_err(dev->net, ": unexpected notification %02x!\n",
+				event->bNotificationType);
+		break;
+	}
+}
+
+static void sierra_net_get_drvinfo(struct net_device *net,
+		struct ethtool_drvinfo *info)
+{
+	/* Inherit standard device info */
+	usbnet_get_drvinfo(net, info);
+	strncpy(info->driver, driver_name, sizeof info->driver);
+	strncpy(info->version, DRIVER_VERSION, sizeof info->version);
+}
+
+static u32 sierra_net_get_link(struct net_device *net)
+{
+	struct usbnet *dev = netdev_priv(net);
+	/* Report link is down whenever the interface is down */
+	return sierra_net_get_private(dev)->link_up && netif_running(net);
+}
+
+static struct ethtool_ops sierra_net_ethtool_ops = {
+	.get_drvinfo = sierra_net_get_drvinfo,
+	.get_link = sierra_net_get_link,
+	.get_msglevel = usbnet_get_msglevel,
+	.set_msglevel = usbnet_set_msglevel,
+	.get_settings = usbnet_get_settings,
+	.set_settings = usbnet_set_settings,
+	.nway_reset = usbnet_nway_reset,
+};
+
+/* MTU can not be more than 1500 bytes, enforce it. */
+static int sierra_net_change_mtu(struct net_device *net, int new_mtu)
+{
+	if (new_mtu > SIERRA_NET_MAX_SUPPORTED_MTU)
+		return -EINVAL;
+
+	return usbnet_change_mtu(net, new_mtu);
+}
+
+static int is_whitelisted(const u8 ifnum,
+			const struct sierra_net_iface_info *whitelist)
+{
+	if (whitelist) {
+		const u8 *list = whitelist->ifaceinfo;
+		int i;
+
+		for (i = 0; i < whitelist->infolen; i++) {
+			if (list[i] == ifnum)
+				return 1;
+		}
+	}
+	return 0;
+}
+
+static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap)
+{
+	int result = 0;
+	u16 *attrdata;
+
+	attrdata = kmalloc(sizeof(*attrdata), GFP_KERNEL);
+	if (!attrdata)
+		return -ENOMEM;
+
+	result = usb_control_msg(
+			dev->udev,
+			usb_rcvctrlpipe(dev->udev, 0),
+			/* _u8 vendor specific request */
+			SWI_USB_REQUEST_GET_FW_ATTR,
+			USB_DIR_IN | USB_TYPE_VENDOR,	/* __u8 request type */
+			0x0000,		/* __u16 value not used */
+			0x0000,		/* __u16 index  not used */
+			attrdata,	/* char *data */
+			sizeof(*attrdata),		/* __u16 size */
+			USB_CTRL_SET_TIMEOUT);	/* int timeout */
+
+	if (result < 0) {
+		kfree(attrdata);
+		return -EIO;
+	}
+
+	*datap = *attrdata;
+
+	kfree(attrdata);
+	return result;
+}
+
+/*
+ * collects the bulk endpoints, the status endpoint.
+ */
+static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+	u8	ifacenum;
+	u8	numendpoints;
+	u16	fwattr = 0;
+	int	status;
+	struct ethhdr *eth;
+	struct sierra_net_data *priv;
+	static const u8 sync_tmplate[sizeof(priv->sync_msg)] = {
+		0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
+	static const u8 shdwn_tmplate[sizeof(priv->shdwn_msg)] = {
+		0x00, 0x00, SIERRA_NET_HIP_SHUTD_ID, 0x00};
+
+	struct sierra_net_info_data *data =
+			(struct sierra_net_info_data *)dev->driver_info->data;
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+
+	ifacenum = intf->cur_altsetting->desc.bInterfaceNumber;
+	/* We only accept certain interfaces */
+	if (!is_whitelisted(ifacenum, &data->whitelist)) {
+		dev_dbg(&dev->udev->dev, "Ignoring interface: %d", ifacenum);
+		return -ENODEV;
+	}
+	numendpoints = intf->cur_altsetting->desc.bNumEndpoints;
+	/* We have three endpoints, bulk in and out, and a status */
+	if (numendpoints != 3) {
+		dev_err(&dev->udev->dev, "Expected 3 endpoints, found: %d",
+			numendpoints);
+		return -ENODEV;
+	}
+	/* Status endpoint set in usbnet_get_endpoints() */
+	dev->status = NULL;
+	status = usbnet_get_endpoints(dev, intf);
+	if (status < 0) {
+		dev_err(&dev->udev->dev, "Error in usbnet_get_endpoints (%d)",
+			status);
+		return -ENODEV;
+	}
+	/* Initialize sierra private data */
+	priv = kzalloc(sizeof *priv, GFP_KERNEL);
+	if (!priv) {
+		dev_err(&dev->udev->dev, "No memory");
+		return -ENOMEM;
+	}
+
+	priv->usbnet = dev;
+	priv->ifnum = ifacenum;
+	dev->net->netdev_ops = &sierra_net_device_ops;
+
+	/* change MAC addr to include, ifacenum, and to be unique */
+	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
+	dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
+
+	/* we will have to manufacture ethernet headers, prepare template */
+	eth = (struct ethhdr *)priv->ethr_hdr_tmpl;
+	memcpy(&eth->h_dest, dev->net->dev_addr, ETH_ALEN);
+	eth->h_proto = cpu_to_be16(ETH_P_IP);
+
+	/* prepare shutdown message template */
+	memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
+	/* set context index initially to 0 - prepares tx hdr template */
+	sierra_net_set_ctx_index(priv, 0);
+
+	/* decrease the rx_urb_size and max_tx_size to 4k on USB 1.1 */
+	dev->rx_urb_size  = data->rx_urb_size;
+	if (dev->udev->speed != USB_SPEED_HIGH)
+		dev->rx_urb_size  = min_t(size_t, 4096, data->rx_urb_size);
+
+	dev->net->hard_header_len += SIERRA_NET_HIP_EXT_HDR_LEN;
+	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
+	/* Set up the netdev */
+	dev->net->flags |= IFF_NOARP;
+	dev->net->ethtool_ops = &sierra_net_ethtool_ops;
+	netif_carrier_off(dev->net);
+
+	sierra_net_set_private(dev, priv);
+
+	priv->kevent_flags = 0;
+
+	/* Use the shared workqueue */
+	INIT_WORK(&priv->sierra_net_kevent, sierra_net_kevent);
+
+	/* Only need to do this once */
+	init_timer(&priv->sync_timer);
+
+	/* verify fw attributes */
+	status = sierra_net_get_fw_attr(dev, &fwattr);
+	dev_dbg(&dev->udev->dev, "Fw attr: %x\n", fwattr);
+
+	/* test whether firmware supports DHCP */
+	if (!(status == sizeof(fwattr) && (fwattr & SWI_GET_FW_ATTR_MASK))) {
+		/* found incompatible firmware version */
+		dev_err(&dev->udev->dev, "Incompatible driver and firmware"
+			" versions\n");
+		kfree(priv);
+		return -ENODEV;
+	}
+	/* prepare sync message from template */
+	memcpy(priv->sync_msg, sync_tmplate, sizeof(priv->sync_msg));
+
+	return 0;
+}
+
+static void sierra_net_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+	int status;
+	struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+
+	/* Kill the timer then flush the work queue */
+	del_timer_sync(&priv->sync_timer);
+
+	flush_scheduled_work();
+
+	/* tell modem we are going away */
+	status = sierra_net_send_cmd(dev, priv->shdwn_msg,
+			sizeof(priv->shdwn_msg), "Shutdown");
+	if (status < 0)
+		netdev_err(dev->net,
+			"usb_control_msg failed, status %d\n", status);
+
+	sierra_net_set_private(dev, NULL);
+
+	kfree(priv);
+}
+
+static struct sk_buff *sierra_net_skb_clone(struct usbnet *dev,
+		struct sk_buff *skb, int len)
+{
+	struct sk_buff *new_skb;
+
+	/* clone skb */
+	new_skb = skb_clone(skb, GFP_ATOMIC);
+
+	/* remove len bytes from original */
+	skb_pull(skb, len);
+
+	/* trim next packet to it's length */
+	if (new_skb) {
+		skb_trim(new_skb, len);
+	} else {
+		if (netif_msg_rx_err(dev))
+			netdev_err(dev->net, "failed to get skb\n");
+		dev->net->stats.rx_dropped++;
+	}
+
+	return new_skb;
+}
+
+/* ---------------------------- Receive data path ----------------------*/
+static int sierra_net_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+	int err;
+	struct hip_hdr  hh;
+	struct sk_buff *new_skb;
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+
+	/* could contain multiple packets */
+	while (likely(skb->len)) {
+		err = parse_hip(skb->data, skb->len, &hh);
+		if (err) {
+			if (netif_msg_rx_err(dev))
+				netdev_err(dev->net, "Invalid HIP header %d\n",
+					err);
+			/* dev->net->stats.rx_errors incremented by caller */
+			dev->net->stats.rx_length_errors++;
+			return 0;
+		}
+
+		/* Validate Extended HIP header */
+		if (!hh.extmsgid.is_present
+		    || hh.extmsgid.word != SIERRA_NET_HIP_EXT_IP_IN_ID) {
+			if (netif_msg_rx_err(dev))
+				netdev_err(dev->net, "HIP/ETH: Invalid pkt\n");
+
+			dev->net->stats.rx_frame_errors++;
+			/* dev->net->stats.rx_errors incremented by caller */;
+			return 0;
+		}
+
+		skb_pull(skb, hh.hdrlen);
+
+		/* We are going to accept this packet, prepare it */
+		memcpy(skb->data, sierra_net_get_private(dev)->ethr_hdr_tmpl,
+			ETH_HLEN);
+
+		/* Last packet in batch handled by usbnet */
+		if (hh.payload_len.word == skb->len)
+			return 1;
+
+		new_skb = sierra_net_skb_clone(dev, skb, hh.payload_len.word);
+		if (new_skb)
+			usbnet_skb_return(dev, new_skb);
+
+	} /* while */
+
+	return 0;
+}
+
+/* ---------------------------- Transmit data path ----------------------*/
+struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+		gfp_t flags)
+{
+	struct sierra_net_data *priv = sierra_net_get_private(dev);
+	u16 len;
+	bool need_tail;
+
+	dev_dbg(&dev->udev->dev, "%s", __func__);
+	if (priv->link_up && check_ethip_packet(skb, dev) && is_ip(skb)) {
+		/* enough head room as is? */
+		if (SIERRA_NET_HIP_EXT_HDR_LEN <= skb_headroom(skb)) {
+			/* Save the Eth/IP length and set up HIP hdr */
+			len = skb->len;
+			skb_push(skb, SIERRA_NET_HIP_EXT_HDR_LEN);
+			/* Handle ZLP issue */
+			need_tail = ((len + SIERRA_NET_HIP_EXT_HDR_LEN)
+				% dev->maxpacket == 0);
+			if (need_tail) {
+				if (unlikely(skb_tailroom(skb) == 0)) {
+					netdev_err(dev->net, "tx_fixup:"
+						"no room for packet\n");
+					dev_kfree_skb_any(skb);
+					return NULL;
+				} else {
+					skb->data[skb->len] = 0;
+					__skb_put(skb, 1);
+					len = len + 1;
+				}
+			}
+			build_hip(skb->data, len, priv);
+			return skb;
+		} else {
+			/*
+			 * compensate in the future if necessary
+			 */
+			netdev_err(dev->net, "tx_fixup: no room for HIP\n");
+		} /* headroom */
+	}
+
+	if (!priv->link_up)
+		dev->net->stats.tx_carrier_errors++;
+
+	/* tx_dropped incremented by usbnet */
+
+	/* filter the packet out, release it  */
+	dev_kfree_skb_any(skb);
+	return NULL;
+}
+
+static const u8 sierra_net_ifnum_list[] = { 7, 10, 11 };
+static const struct sierra_net_info_data sierra_net_info_data_68A3 = {
+	.rx_urb_size = 8 * 1024,
+	.whitelist = {
+		.infolen = ARRAY_SIZE(sierra_net_ifnum_list),
+		.ifaceinfo = sierra_net_ifnum_list
+	}
+};
+
+static const struct driver_info sierra_net_info_68A3 = {
+	.description = "Sierra Wireless USB-to-WWAN Modem",
+	.flags = FLAG_WWAN | FLAG_SEND_ZLP,
+	.bind = sierra_net_bind,
+	.unbind = sierra_net_unbind,
+	.status = sierra_net_status,
+	.rx_fixup = sierra_net_rx_fixup,
+	.tx_fixup = sierra_net_tx_fixup,
+	.data = (unsigned long)&sierra_net_info_data_68A3,
+};
+
+static const struct usb_device_id products[] = {
+	{USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless USB-to-WWAN modem */
+	.driver_info = (unsigned long) &sierra_net_info_68A3},
+
+	{}, /* last item */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+/* We are based on usbnet, so let it handle the USB driver specifics */
+static struct usb_driver sierra_net_driver = {
+	.name = "sierra_net",
+	.id_table = products,
+	.probe = usbnet_probe,
+	.disconnect = usbnet_disconnect,
+	.suspend = usbnet_suspend,
+	.resume = usbnet_resume,
+	.no_dynamic_id = 1,
+};
+
+static int __init sierra_net_init(void)
+{
+	BUILD_BUG_ON(FIELD_SIZEOF(struct usbnet, data)
+				< sizeof(struct cdc_state));
+
+	return usb_register(&sierra_net_driver);
+}
+
+static void __exit sierra_net_exit(void)
+{
+	usb_deregister(&sierra_net_driver);
+}
+
+module_exit(sierra_net_exit);
+module_init(sierra_net_init);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");

From 33f60e9640b2f60dde6735293d4aa5ecc5b1d5d5 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Wed, 28 Apr 2010 09:20:33 +0200
Subject: [PATCH 452/464] coda: move backing-dev.h kernel include inside
 __KERNEL__

Otherwise we must export backing-dev.h as well, which doesn't make
any sense.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 include/linux/coda_psdev.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h
index 644062e8d857d..8859e2ede9fe3 100644
--- a/include/linux/coda_psdev.h
+++ b/include/linux/coda_psdev.h
@@ -1,13 +1,14 @@
 #ifndef __CODA_PSDEV_H
 #define __CODA_PSDEV_H
 
-#include <linux/backing-dev.h>
 #include <linux/magic.h>
 
 #define CODA_PSDEV_MAJOR 67
 #define MAX_CODADEVS  5	   /* how many do we allow */
 
 #ifdef __KERNEL__
+#include <linux/backing-dev.h>
+
 struct kstatfs;
 
 /* communication pending/processing queues */

From 4b99fef02510706a73c8400045b4c72514e581c4 Mon Sep 17 00:00:00 2001
From: Haojian Zhuang <haojian.zhuang@marvell.com>
Date: Tue, 6 Apr 2010 06:19:15 -0400
Subject: [PATCH 453/464] regulator: fix enabling regulator issue on max8925

Fix regulator enabling issue that is caused by typo error in is_enabled().

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
---
 drivers/regulator/max8925-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/max8925-regulator.c b/drivers/regulator/max8925-regulator.c
index b6218f11c957a..552cad85ae5a2 100644
--- a/drivers/regulator/max8925-regulator.c
+++ b/drivers/regulator/max8925-regulator.c
@@ -109,7 +109,7 @@ static int max8925_is_enabled(struct regulator_dev *rdev)
 	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
 	int ret;
 
-	ret = max8925_reg_read(info->i2c, info->vol_reg);
+	ret = max8925_reg_read(info->i2c, info->enable_reg);
 	if (ret < 0)
 		return ret;
 

From 48728e077480910df45baabc5f87b04276348c90 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Tue, 27 Apr 2010 14:45:43 -0600
Subject: [PATCH 454/464] x86/PCI: compute Address Space length rather than
 using _LEN

ACPI _CRS Address Space Descriptors have _MIN, _MAX, and _LEN.  Linux has
been computing Address Spaces as [_MIN to _MIN + _LEN - 1].  Based on the
tests in the bug reports below, Windows apparently uses [_MIN to _MAX].

Per spec (ACPI 4.0, Table 6-40), for _CRS fixed-size, fixed location
descriptors, "_LEN must be (_MAX - _MIN + 1)", and when that's true, it
doesn't matter which way we compute the end.  But of course, there are
BIOSes that don't follow this rule, and we're better off if Linux handles
those exceptions the same way as Windows.

This patch makes Linux use [_MIN to _MAX], as Windows seems to do.  This
effectively reverts d558b483d5 and 03db42adfe and replaces them with
simpler code.

    https://bugzilla.kernel.org/show_bug.cgi?id=14337 (round)
    https://bugzilla.kernel.org/show_bug.cgi?id=15480 (truncate)

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 arch/x86/pci/acpi.c | 40 ++--------------------------------------
 1 file changed, 2 insertions(+), 38 deletions(-)

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 44f83ce024701..31930fd30ea95 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -121,30 +121,6 @@ count_resource(struct acpi_resource *acpi_res, void *data)
 	return AE_OK;
 }
 
-static void
-align_resource(struct acpi_device *bridge, struct resource *res)
-{
-	int align = (res->flags & IORESOURCE_MEM) ? 16 : 4;
-
-	/*
-	 * Host bridge windows are not BARs, but the decoders on the PCI side
-	 * that claim this address space have starting alignment and length
-	 * constraints, so fix any obvious BIOS goofs.
-	 */
-	if (!IS_ALIGNED(res->start, align)) {
-		dev_printk(KERN_DEBUG, &bridge->dev,
-			   "host bridge window %pR invalid; "
-			   "aligning start to %d-byte boundary\n", res, align);
-		res->start &= ~(align - 1);
-	}
-	if (!IS_ALIGNED(res->end + 1, align)) {
-		dev_printk(KERN_DEBUG, &bridge->dev,
-			   "host bridge window %pR invalid; "
-			   "aligning end to %d-byte boundary\n", res, align);
-		res->end = ALIGN(res->end, align) - 1;
-	}
-}
-
 static acpi_status
 setup_resource(struct acpi_resource *acpi_res, void *data)
 {
@@ -154,7 +130,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
 	acpi_status status;
 	unsigned long flags;
 	struct resource *root, *conflict;
-	u64 start, end, max_len;
+	u64 start, end;
 
 	status = resource_to_addr(acpi_res, &addr);
 	if (!ACPI_SUCCESS(status))
@@ -171,19 +147,8 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
 	} else
 		return AE_OK;
 
-	max_len = addr.maximum - addr.minimum + 1;
-	if (addr.address_length > max_len) {
-		dev_printk(KERN_DEBUG, &info->bridge->dev,
-			   "host bridge window length %#llx doesn't fit in "
-			   "%#llx-%#llx, trimming\n",
-			   (unsigned long long) addr.address_length,
-			   (unsigned long long) addr.minimum,
-			   (unsigned long long) addr.maximum);
-		addr.address_length = max_len;
-	}
-
 	start = addr.minimum + addr.translation_offset;
-	end = start + addr.address_length - 1;
+	end = addr.maximum + addr.translation_offset;
 
 	res = &info->res[info->res_num];
 	res->name = info->name;
@@ -191,7 +156,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
 	res->start = start;
 	res->end = end;
 	res->child = NULL;
-	align_resource(info->bridge, res);
 
 	if (!pci_use_crs) {
 		dev_printk(KERN_DEBUG, &info->bridge->dev,

From 8d238b25b1ec22a73b1c2206f111df2faaff8285 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 28 Apr 2010 11:25:59 -0700
Subject: [PATCH 455/464] Revert "tcp: bind() fix when many ports are bound"

This reverts two commits:

fda48a0d7a8412cedacda46a9c0bf8ef9cd13559
tcp: bind() fix when many ports are bound

and a follow-on fix for it:

6443bb1fc2050ca2b6585a3fa77f7833b55329ed
ipv6: Fix inet6_csk_bind_conflict()

It causes problems with binding listening sockets when time-wait
sockets from a previous instance still are alive.

It's too late to keep fiddling with this so late in the -rc
series, and we'll deal with it in net-next-2.6 instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/inet_connection_sock.c  | 16 +++++-----------
 net/ipv6/inet6_connection_sock.c | 15 +++++----------
 2 files changed, 10 insertions(+), 21 deletions(-)

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 14825eb09770a..8da6429269ddd 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -70,17 +70,13 @@ int inet_csk_bind_conflict(const struct sock *sk,
 		    (!sk->sk_bound_dev_if ||
 		     !sk2->sk_bound_dev_if ||
 		     sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
-			const __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
-
 			if (!reuse || !sk2->sk_reuse ||
 			    sk2->sk_state == TCP_LISTEN) {
+				const __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
 				if (!sk2_rcv_saddr || !sk_rcv_saddr ||
 				    sk2_rcv_saddr == sk_rcv_saddr)
 					break;
-			} else if (reuse && sk2->sk_reuse &&
-				   sk2_rcv_saddr &&
-				   sk2_rcv_saddr == sk_rcv_saddr)
-				break;
+			}
 		}
 	}
 	return node != NULL;
@@ -124,11 +120,9 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 						smallest_size = tb->num_owners;
 						smallest_rover = rover;
 						if (atomic_read(&hashinfo->bsockets) > (high - low) + 1) {
-							if (!inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb)) {
-								spin_unlock(&head->lock);
-								snum = smallest_rover;
-								goto have_snum;
-							}
+							spin_unlock(&head->lock);
+							snum = smallest_rover;
+							goto have_snum;
 						}
 					}
 					goto next;
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 3a4d92b5a83e5..628db24bcf22b 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -42,16 +42,11 @@ int inet6_csk_bind_conflict(const struct sock *sk,
 		if (sk != sk2 &&
 		    (!sk->sk_bound_dev_if ||
 		     !sk2->sk_bound_dev_if ||
-		     sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
-			if ((!sk->sk_reuse || !sk2->sk_reuse ||
-			     sk2->sk_state == TCP_LISTEN) &&
-			     ipv6_rcv_saddr_equal(sk, sk2))
-				break;
-			else if (sk->sk_reuse && sk2->sk_reuse &&
-				!ipv6_addr_any(inet6_rcv_saddr(sk)) &&
-				ipv6_rcv_saddr_equal(sk, sk2))
-				break;
-		}
+		     sk->sk_bound_dev_if == sk2->sk_bound_dev_if) &&
+		    (!sk->sk_reuse || !sk2->sk_reuse ||
+		     sk2->sk_state == TCP_LISTEN) &&
+		     ipv6_rcv_saddr_equal(sk, sk2))
+			break;
 	}
 
 	return node != NULL;

From 561b1733a465cf9677356b40c27653dd45f1ac56 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yjwei@cn.fujitsu.com>
Date: Wed, 28 Apr 2010 08:47:18 +0000
Subject: [PATCH 456/464] sctp: avoid irq lock inversion while call
 sk->sk_data_ready()

sk->sk_data_ready() of sctp socket can be called from both BH and non-BH
contexts, but the default sk->sk_data_ready(), sock_def_readable(), can
not be used in this case. Therefore, we have to make a new function
sctp_data_ready() to grab sk->sk_data_ready() with BH disabling.

=========================================================
[ INFO: possible irq lock inversion dependency detected ]
2.6.33-rc6 #129
---------------------------------------------------------
sctp_darn/1517 just changed the state of lock:
 (clock-AF_INET){++.?..}, at: [<c06aab60>] sock_def_readable+0x20/0x80
but this lock took another, SOFTIRQ-unsafe lock in the past:
 (slock-AF_INET){+.-...}

and interrupts could create inverse lock ordering between them.

other info that might help us debug this:
1 lock held by sctp_darn/1517:
 #0:  (sk_lock-AF_INET){+.+.+.}, at: [<cdfe363d>] sctp_sendmsg+0x23d/0xc00 [sctp]

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/sctp.h |  1 +
 net/sctp/endpointola.c  |  1 +
 net/sctp/socket.c       | 10 ++++++++++
 3 files changed, 12 insertions(+)

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 78740ec57d5db..fa6cde578a1d1 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -128,6 +128,7 @@ extern int sctp_register_pf(struct sctp_pf *, sa_family_t);
 int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
 int sctp_inet_listen(struct socket *sock, int backlog);
 void sctp_write_space(struct sock *sk);
+void sctp_data_ready(struct sock *sk, int len);
 unsigned int sctp_poll(struct file *file, struct socket *sock,
 		poll_table *wait);
 void sctp_sock_rfree(struct sk_buff *skb);
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 905fda582b92b..7ec09ba03a1ce 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -144,6 +144,7 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
 	/* Use SCTP specific send buffer space queues.  */
 	ep->sndbuf_policy = sctp_sndbuf_policy;
 
+	sk->sk_data_ready = sctp_data_ready;
 	sk->sk_write_space = sctp_write_space;
 	sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);
 
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 007e8baba0891..efa2bc3f00289 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6189,6 +6189,16 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
 	goto out;
 }
 
+void sctp_data_ready(struct sock *sk, int len)
+{
+	read_lock_bh(&sk->sk_callback_lock);
+	if (sk_has_sleeper(sk))
+		wake_up_interruptible_sync_poll(sk->sk_sleep, POLLIN |
+						POLLRDNORM | POLLRDBAND);
+	sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
+	read_unlock_bh(&sk->sk_callback_lock);
+}
+
 /* If socket sndbuf has changed, wake up all per association waiters.  */
 void sctp_write_space(struct sock *sk)
 {

From 0c42749cffbb4a06be86c5e5db6c7ebad548781f Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Wed, 28 Apr 2010 08:47:19 +0000
Subject: [PATCH 457/464] sctp: fix potential reference of a freed pointer

When sctp attempts to update an assocition, it removes any
addresses that were not in the updated INITs.  However, the loop
may attempt to refrence a transport with address after removing it.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/associola.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index df5abbff63e22..99c93ee98ad9d 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1194,8 +1194,10 @@ void sctp_assoc_update(struct sctp_association *asoc,
 	/* Remove any peer addresses not present in the new association. */
 	list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
 		trans = list_entry(pos, struct sctp_transport, transports);
-		if (!sctp_assoc_lookup_paddr(new, &trans->ipaddr))
-			sctp_assoc_del_peer(asoc, &trans->ipaddr);
+		if (!sctp_assoc_lookup_paddr(new, &trans->ipaddr)) {
+			sctp_assoc_rm_peer(asoc, trans);
+			continue;
+		}
 
 		if (asoc->state >= SCTP_STATE_ESTABLISHED)
 			sctp_transport_reset(trans);

From 81419d862db743fe4450a021893f24bab4698c1d Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Wed, 28 Apr 2010 08:47:20 +0000
Subject: [PATCH 458/464] sctp: per_cpu variables should be in bh_disabled
 section

Since the change of the atomics to percpu variables, we now
have to disable BH in process context when touching percpu variables.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/socket.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index efa2bc3f00289..44a1ab03a3f01 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3719,12 +3719,12 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
 	sp->hmac = NULL;
 
 	SCTP_DBG_OBJCNT_INC(sock);
-	percpu_counter_inc(&sctp_sockets_allocated);
 
 	/* Set socket backlog limit. */
 	sk->sk_backlog.limit = sysctl_sctp_rmem[1];
 
 	local_bh_disable();
+	percpu_counter_inc(&sctp_sockets_allocated);
 	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	local_bh_enable();
 
@@ -3741,8 +3741,8 @@ SCTP_STATIC void sctp_destroy_sock(struct sock *sk)
 	/* Release our hold on the endpoint. */
 	ep = sctp_sk(sk)->ep;
 	sctp_endpoint_free(ep);
-	percpu_counter_dec(&sctp_sockets_allocated);
 	local_bh_disable();
+	percpu_counter_dec(&sctp_sockets_allocated);
 	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
 	local_bh_enable();
 }

From a8170c35e738d62e9919ce5b109cf4ed66e95bde Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yjwei@cn.fujitsu.com>
Date: Wed, 28 Apr 2010 08:47:21 +0000
Subject: [PATCH 459/464] sctp: fix to calc the INIT/INIT-ACK chunk length
 correctly is set

When calculating the INIT/INIT-ACK chunk length, we should not
only account the length of parameters, but also the parameters
zero padding length, such as AUTH HMACS parameter and CHUNKS
parameter. Without the parameters zero padding length we may get
following oops.

skb_over_panic: text:ce2068d2 len:130 put:6 head:cac3fe00 data:cac3fe00 tail:0xcac3fe82 end:0xcac3fe80 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:127!
invalid opcode: 0000 [#2] SMP
last sysfs file: /sys/module/aes_generic/initstate
Modules linked in: authenc ......

Pid: 4102, comm: sctp_darn Tainted: G      D    2.6.34-rc2 #6
EIP: 0060:[<c0607630>] EFLAGS: 00010282 CPU: 0
EIP is at skb_over_panic+0x37/0x3e
EAX: 00000078 EBX: c07c024b ECX: c07c02b9 EDX: cb607b78
ESI: 00000000 EDI: cac3fe7a EBP: 00000002 ESP: cb607b74
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process sctp_darn (pid: 4102, ti=cb607000 task=cabdc990 task.ti=cb607000)
Stack:
 c07c02b9 ce2068d2 00000082 00000006 cac3fe00 cac3fe00 cac3fe82 cac3fe80
<0> c07c024b cac3fe7c cac3fe7a c0608dec ca986e80 ce2068d2 00000006 0000007a
<0> cb8120ca ca986e80 cb812000 00000003 cb8120c4 ce208a25 cb8120ca cadd9400
Call Trace:
 [<ce2068d2>] ? sctp_addto_chunk+0x45/0x85 [sctp]
 [<c0608dec>] ? skb_put+0x2e/0x32
 [<ce2068d2>] ? sctp_addto_chunk+0x45/0x85 [sctp]
 [<ce208a25>] ? sctp_make_init+0x279/0x28c [sctp]
 [<c0686a92>] ? apic_timer_interrupt+0x2a/0x30
 [<ce1fdc0b>] ? sctp_sf_do_prm_asoc+0x2b/0x7b [sctp]
 [<ce202823>] ? sctp_do_sm+0xa0/0x14a [sctp]
 [<ce2133b9>] ? sctp_pname+0x0/0x14 [sctp]
 [<ce211d72>] ? sctp_primitive_ASSOCIATE+0x2b/0x31 [sctp]
 [<ce20f3cf>] ? sctp_sendmsg+0x7a0/0x9eb [sctp]
 [<c064eb1e>] ? inet_sendmsg+0x3b/0x43
 [<c04244b7>] ? task_tick_fair+0x2d/0xd9
 [<c06031e1>] ? sock_sendmsg+0xa7/0xc1
 [<c0416afe>] ? smp_apic_timer_interrupt+0x6b/0x75
 [<c0425123>] ? dequeue_task_fair+0x34/0x19b
 [<c0446abb>] ? sched_clock_local+0x17/0x11e
 [<c052ea87>] ? _copy_from_user+0x2b/0x10c
 [<c060ab3a>] ? verify_iovec+0x3c/0x6a
 [<c06035ca>] ? sys_sendmsg+0x186/0x1e2
 [<c042176b>] ? __wake_up_common+0x34/0x5b
 [<c04240c2>] ? __wake_up+0x2c/0x3b
 [<c057e35c>] ? tty_wakeup+0x43/0x47
 [<c04430f2>] ? remove_wait_queue+0x16/0x24
 [<c0580c94>] ? n_tty_read+0x5b8/0x65e
 [<c042be02>] ? default_wake_function+0x0/0x8
 [<c0604e0e>] ? sys_socketcall+0x17f/0x1cd
 [<c040264c>] ? sysenter_do_call+0x12/0x22
Code: 0f 45 de 53 ff b0 98 00 00 00 ff b0 94 ......
EIP: [<c0607630>] skb_over_panic+0x37/0x3e SS:ESP 0068:cb607b74

To reproduce:

# modprobe sctp
# echo 1 > /proc/sys/net/sctp/addip_enable
# echo 1 > /proc/sys/net/sctp/auth_enable
# sctp_test -H 3ffe:501:ffff:100:20c:29ff:fe4d:f37e -P 800 -l
# sctp_darn -H 3ffe:501:ffff:100:20c:29ff:fe4d:f37e -P 900 -h 192.168.0.21 -p 800 -I -s -t
sctp_darn ready to send...
3ffe:501:ffff:100:20c:29ff:fe4d:f37e:900-192.168.0.21:800 Interactive mode> bindx-add=192.168.0.21
3ffe:501:ffff:100:20c:29ff:fe4d:f37e:900-192.168.0.21:800 Interactive mode> bindx-add=192.168.1.21
3ffe:501:ffff:100:20c:29ff:fe4d:f37e:900-192.168.0.21:800 Interactive mode> snd=10

------------------------------------------------------------------
eth0 has addresses: 3ffe:501:ffff:100:20c:29ff:fe4d:f37e and 192.168.0.21
eth1 has addresses: 192.168.1.21
------------------------------------------------------------------

Reported-by: George Cheimonidis <gchimon@gmail.com>
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/sm_make_chunk.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 17cb400ecd6aa..f6fc5c1a4078d 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -208,7 +208,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
 	sp = sctp_sk(asoc->base.sk);
 	num_types = sp->pf->supported_addrs(sp, types);
 
-	chunksize = sizeof(init) + addrs_len + SCTP_SAT_LEN(num_types);
+	chunksize = sizeof(init) + addrs_len;
+	chunksize += WORD_ROUND(SCTP_SAT_LEN(num_types));
 	chunksize += sizeof(ecap_param);
 
 	if (sctp_prsctp_enable)
@@ -238,14 +239,14 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
 		/* Add HMACS parameter length if any were defined */
 		auth_hmacs = (sctp_paramhdr_t *)asoc->c.auth_hmacs;
 		if (auth_hmacs->length)
-			chunksize += ntohs(auth_hmacs->length);
+			chunksize += WORD_ROUND(ntohs(auth_hmacs->length));
 		else
 			auth_hmacs = NULL;
 
 		/* Add CHUNKS parameter length */
 		auth_chunks = (sctp_paramhdr_t *)asoc->c.auth_chunks;
 		if (auth_chunks->length)
-			chunksize += ntohs(auth_chunks->length);
+			chunksize += WORD_ROUND(ntohs(auth_chunks->length));
 		else
 			auth_chunks = NULL;
 
@@ -255,7 +256,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
 
 	/* If we have any extensions to report, account for that */
 	if (num_ext)
-		chunksize += sizeof(sctp_supported_ext_param_t) + num_ext;
+		chunksize += WORD_ROUND(sizeof(sctp_supported_ext_param_t) +
+					num_ext);
 
 	/* RFC 2960 3.3.2 Initiation (INIT) (1)
 	 *
@@ -397,13 +399,13 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
 
 		auth_hmacs = (sctp_paramhdr_t *)asoc->c.auth_hmacs;
 		if (auth_hmacs->length)
-			chunksize += ntohs(auth_hmacs->length);
+			chunksize += WORD_ROUND(ntohs(auth_hmacs->length));
 		else
 			auth_hmacs = NULL;
 
 		auth_chunks = (sctp_paramhdr_t *)asoc->c.auth_chunks;
 		if (auth_chunks->length)
-			chunksize += ntohs(auth_chunks->length);
+			chunksize += WORD_ROUND(ntohs(auth_chunks->length));
 		else
 			auth_chunks = NULL;
 
@@ -412,7 +414,8 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
 	}
 
 	if (num_ext)
-		chunksize += sizeof(sctp_supported_ext_param_t) + num_ext;
+		chunksize += WORD_ROUND(sizeof(sctp_supported_ext_param_t) +
+					num_ext);
 
 	/* Now allocate and fill out the chunk.  */
 	retval = sctp_make_chunk(asoc, SCTP_CID_INIT_ACK, 0, chunksize);

From c0786693404cffd80ca3cb6e75ee7b35186b2825 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Wed, 28 Apr 2010 08:47:22 +0000
Subject: [PATCH 460/464] sctp: Fix oops when sending queued ASCONF chunks

When we finish processing ASCONF_ACK chunk, we try to send
the next queued ASCONF.  This action runs the sctp state
machine recursively and it's not prepared to do so.

kernel BUG at kernel/timer.c:790!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/module/ipv6/initstate
Modules linked in: sha256_generic sctp libcrc32c ipv6 dm_multipath
uinput 8139too i2c_piix4 8139cp mii i2c_core pcspkr virtio_net joydev
floppy virtio_blk virtio_pci [last unloaded: scsi_wait_scan]

Pid: 0, comm: swapper Not tainted 2.6.34-rc4 #15 /Bochs
EIP: 0060:[<c044a2ef>] EFLAGS: 00010286 CPU: 0
EIP is at add_timer+0xd/0x1b
EAX: cecbab14 EBX: 000000f0 ECX: c0957b1c EDX: 03595cf4
ESI: cecba800 EDI: cf276f00 EBP: c0957aa0 ESP: c0957aa0
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process swapper (pid: 0, ti=c0956000 task=c0988ba0 task.ti=c0956000)
Stack:
 c0957ae0 d1851214 c0ab62e4 c0ab5f26 0500ffff 00000004 00000005 00000004
<0> 00000000 d18694fd 00000004 1666b892 cecba800 cecba800 c0957b14
00000004
<0> c0957b94 d1851b11 ceda8b00 cecba800 cf276f00 00000001 c0957b14
000000d0
Call Trace:
 [<d1851214>] ? sctp_side_effects+0x607/0xdfc [sctp]
 [<d1851b11>] ? sctp_do_sm+0x108/0x159 [sctp]
 [<d1863386>] ? sctp_pname+0x0/0x1d [sctp]
 [<d1861a56>] ? sctp_primitive_ASCONF+0x36/0x3b [sctp]
 [<d185657c>] ? sctp_process_asconf_ack+0x2a4/0x2d3 [sctp]
 [<d184e35c>] ? sctp_sf_do_asconf_ack+0x1dd/0x2b4 [sctp]
 [<d1851ac1>] ? sctp_do_sm+0xb8/0x159 [sctp]
 [<d1863334>] ? sctp_cname+0x0/0x52 [sctp]
 [<d1854377>] ? sctp_assoc_bh_rcv+0xac/0xe1 [sctp]
 [<d1858f0f>] ? sctp_inq_push+0x2d/0x30 [sctp]
 [<d186329d>] ? sctp_rcv+0x797/0x82e [sctp]

Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Yuansong Qiao <ysqiao@research.ait.ie>
Signed-off-by: Shuaijun Zhang <szhang@research.ait.ie>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/command.h |  1 +
 net/sctp/sm_make_chunk.c   | 15 ---------------
 net/sctp/sm_sideeffect.c   | 26 ++++++++++++++++++++++++++
 net/sctp/sm_statefuns.c    |  8 +++++++-
 4 files changed, 34 insertions(+), 16 deletions(-)

diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h
index 8be5135ff7aa4..2c55a7ea20af0 100644
--- a/include/net/sctp/command.h
+++ b/include/net/sctp/command.h
@@ -107,6 +107,7 @@ typedef enum {
 	SCTP_CMD_T1_RETRAN,	 /* Mark for retransmission after T1 timeout  */
 	SCTP_CMD_UPDATE_INITTAG, /* Update peer inittag */
 	SCTP_CMD_SEND_MSG,	 /* Send the whole use message */
+	SCTP_CMD_SEND_NEXT_ASCONF, /* Send the next ASCONF after ACK */
 	SCTP_CMD_LAST
 } sctp_verb_t;
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index f6fc5c1a4078d..0fd5b4c88358d 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3318,21 +3318,6 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
 	sctp_chunk_free(asconf);
 	asoc->addip_last_asconf = NULL;
 
-	/* Send the next asconf chunk from the addip chunk queue. */
-	if (!list_empty(&asoc->addip_chunk_list)) {
-		struct list_head *entry = asoc->addip_chunk_list.next;
-		asconf = list_entry(entry, struct sctp_chunk, list);
-
-		list_del_init(entry);
-
-		/* Hold the chunk until an ASCONF_ACK is received. */
-		sctp_chunk_hold(asconf);
-		if (sctp_primitive_ASCONF(asoc, asconf))
-			sctp_chunk_free(asconf);
-		else
-			asoc->addip_last_asconf = asconf;
-	}
-
 	return retval;
 }
 
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 4c5bed9af4e33..d5ae450b6f02d 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -962,6 +962,29 @@ static int sctp_cmd_send_msg(struct sctp_association *asoc,
 }
 
 
+/* Sent the next ASCONF packet currently stored in the association.
+ * This happens after the ASCONF_ACK was succeffully processed.
+ */
+static void sctp_cmd_send_asconf(struct sctp_association *asoc)
+{
+	/* Send the next asconf chunk from the addip chunk
+	 * queue.
+	 */
+	if (!list_empty(&asoc->addip_chunk_list)) {
+		struct list_head *entry = asoc->addip_chunk_list.next;
+		struct sctp_chunk *asconf = list_entry(entry,
+						struct sctp_chunk, list);
+		list_del_init(entry);
+
+		/* Hold the chunk until an ASCONF_ACK is received. */
+		sctp_chunk_hold(asconf);
+		if (sctp_primitive_ASCONF(asoc, asconf))
+			sctp_chunk_free(asconf);
+		else
+			asoc->addip_last_asconf = asconf;
+	}
+}
+
 
 /* These three macros allow us to pull the debugging code out of the
  * main flow of sctp_do_sm() to keep attention focused on the real
@@ -1617,6 +1640,9 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			}
 			error = sctp_cmd_send_msg(asoc, cmd->obj.msg);
 			break;
+		case SCTP_CMD_SEND_NEXT_ASCONF:
+			sctp_cmd_send_asconf(asoc);
+			break;
 		default:
 			printk(KERN_WARNING "Impossible command: %u, %p\n",
 			       cmd->verb, cmd->obj.ptr);
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index abf601a1b8473..24b2cd5556372 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -3676,8 +3676,14 @@ sctp_disposition_t sctp_sf_do_asconf_ack(const struct sctp_endpoint *ep,
 				SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
 
 		if (!sctp_process_asconf_ack((struct sctp_association *)asoc,
-					     asconf_ack))
+					     asconf_ack)) {
+			/* Successfully processed ASCONF_ACK.  We can
+			 * release the next asconf if we have one.
+			 */
+			sctp_add_cmd_sf(commands, SCTP_CMD_SEND_NEXT_ASCONF,
+					SCTP_NULL());
 			return SCTP_DISPOSITION_CONSUME;
+		}
 
 		abort = sctp_make_abort(asoc, asconf_ack,
 					sizeof(sctp_errhdr_t));

From aabc5649078310094cbffb430fcbf9c25b6268f9 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 28 Apr 2010 09:00:35 +0000
Subject: [PATCH 461/464] sfc: Wait at most 10ms for the MC to finish reading
 out MAC statistics

The original code would wait indefinitely if MAC stats DMA failed.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/sfc/siena.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/sfc/siena.c b/drivers/net/sfc/siena.c
index 38dcc42c4f790..e0c46f59d1f87 100644
--- a/drivers/net/sfc/siena.c
+++ b/drivers/net/sfc/siena.c
@@ -456,8 +456,17 @@ static int siena_try_update_nic_stats(struct efx_nic *efx)
 
 static void siena_update_nic_stats(struct efx_nic *efx)
 {
-	while (siena_try_update_nic_stats(efx) == -EAGAIN)
-		cpu_relax();
+	int retry;
+
+	/* If we're unlucky enough to read statistics wduring the DMA, wait
+	 * up to 10ms for it to finish (typically takes <500us) */
+	for (retry = 0; retry < 100; ++retry) {
+		if (siena_try_update_nic_stats(efx) == 0)
+			return;
+		udelay(100);
+	}
+
+	/* Use the old values instead */
 }
 
 static void siena_start_nic_stats(struct efx_nic *efx)

From f49a4589e9e25ef525da449b1ce5597cb659bbb5 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 28 Apr 2010 09:01:33 +0000
Subject: [PATCH 462/464] sfc: Always close net device at the end of a
 disabling reset

This fixes a regression introduced by commit
eb9f6744cbfa97674c13263802259b5aa0034594 "sfc: Implement ethtool
reset operation".

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/sfc/efx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 6486657c47b86..649a264d6a81b 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1861,6 +1861,7 @@ int efx_reset(struct efx_nic *efx, enum reset_type method)
 	}
 
 	if (disabled) {
+		dev_close(efx->net_dev);
 		EFX_ERR(efx, "has been disabled\n");
 		efx->state = STATE_DISABLED;
 	} else {
@@ -1884,8 +1885,7 @@ static void efx_reset_work(struct work_struct *data)
 	}
 
 	rtnl_lock();
-	if (efx_reset(efx, efx->reset_pending))
-		dev_close(efx->net_dev);
+	(void)efx_reset(efx, efx->reset_pending);
 	rtnl_unlock();
 }
 

From e41c11ee0cc602bcde68916be85fb97d1a484324 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 28 Apr 2010 09:01:50 +0000
Subject: [PATCH 463/464] sfc: Change falcon_probe_board() to fail for
 unsupported boards

The driver needs specific PHY and board support code for each SFC4000
board; there is no point trying to continue if it is missing.
Currently unsupported boards can trigger an 'oops'.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/sfc/falcon.c        |  4 +++-
 drivers/net/sfc/falcon_boards.c | 13 +++----------
 drivers/net/sfc/nic.h           |  2 +-
 3 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index d294d66fd6006..08278e7302b38 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1320,7 +1320,9 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
 
 	EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mdio.prtad);
 
-	falcon_probe_board(efx, board_rev);
+	rc = falcon_probe_board(efx, board_rev);
+	if (rc)
+		goto fail2;
 
 	kfree(nvconfig);
 	return 0;
diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c
index 5712fddd72f2e..c7a933a3292e6 100644
--- a/drivers/net/sfc/falcon_boards.c
+++ b/drivers/net/sfc/falcon_boards.c
@@ -728,15 +728,7 @@ static const struct falcon_board_type board_types[] = {
 	},
 };
 
-static const struct falcon_board_type falcon_dummy_board = {
-	.init		= efx_port_dummy_op_int,
-	.init_phy	= efx_port_dummy_op_void,
-	.fini		= efx_port_dummy_op_void,
-	.set_id_led	= efx_port_dummy_op_set_id_led,
-	.monitor	= efx_port_dummy_op_int,
-};
-
-void falcon_probe_board(struct efx_nic *efx, u16 revision_info)
+int falcon_probe_board(struct efx_nic *efx, u16 revision_info)
 {
 	struct falcon_board *board = falcon_board(efx);
 	u8 type_id = FALCON_BOARD_TYPE(revision_info);
@@ -754,8 +746,9 @@ void falcon_probe_board(struct efx_nic *efx, u16 revision_info)
 			 (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC)
 			 ? board->type->ref_model : board->type->gen_type,
 			 'A' + board->major, board->minor);
+		return 0;
 	} else {
 		EFX_ERR(efx, "unknown board type %d\n", type_id);
-		board->type = &falcon_dummy_board;
+		return -ENODEV;
 	}
 }
diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h
index 9351c0331a47f..3166bafdfbefc 100644
--- a/drivers/net/sfc/nic.h
+++ b/drivers/net/sfc/nic.h
@@ -156,7 +156,7 @@ extern struct efx_nic_type siena_a0_nic_type;
  **************************************************************************
  */
 
-extern void falcon_probe_board(struct efx_nic *efx, u16 revision_info);
+extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
 
 /* TX data path */
 extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue);

From d9e80b7de91db05c1c4d2e5ebbfd70b3b3ba0e0f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Thu, 29 Apr 2010 03:10:43 +0100
Subject: [PATCH 464/464] nfs d_revalidate() is too trigger-happy with d_drop()

If dentry found stale happens to be a root of disconnected tree, we
can't d_drop() it; its d_hash is actually part of s_anon and d_drop()
would simply hide it from shrink_dcache_for_umount(), leading to
all sorts of fun, including busy inodes on umount and oopsen after
that.

Bug had been there since at least 2006 (commit c636eb already has it),
so it's definitely -stable fodder.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/nfs/dir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index be46f26c9a561..db3ad849a289f 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -837,6 +837,8 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
 		/* If we have submounts, don't unhash ! */
 		if (have_submounts(dentry))
 			goto out_valid;
+		if (dentry->d_flags & DCACHE_DISCONNECTED)
+			goto out_valid;
 		shrink_dcache_parent(dentry);
 	}
 	d_drop(dentry);