---

yaml
---
r: 223037
b: refs/heads/master
c: 6d20e84
h: refs/heads/master
i:
  223035: cc48f71
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6313e3c21743cc88bb5bd8aa72948ee1e83937b6
+refs/heads/master: 6d20e8406f0942228a73000663c2b33f488103ea

trunk/Documentation/ABI/testing/sysfs-platform-asus-laptop

@@ -47,20 +47,6 @@ Date:		January 2007
 KernelVersion:	2.6.20
 Contact:	"Corentin Chary" <corentincj@iksaif.net>
 Description:
-		Control the wlan device. 1 means on, 0 means off.
+		Control the bluetooth device. 1 means on, 0 means off.
 		This may control the led, the device or both.
 Users:		Lapsus
-
-What:		/sys/devices/platform/asus_laptop/wimax
-Date:		October 2010
-KernelVersion:	2.6.37
-Contact:	"Corentin Chary" <corentincj@iksaif.net>
-Description:
-		Control the wimax device. 1 means on, 0 means off.
-
-What:		/sys/devices/platform/asus_laptop/wwan
-Date:		October 2010
-KernelVersion:	2.6.37
-Contact:	"Corentin Chary" <corentincj@iksaif.net>
-Description:
-		Control the wwan (3G) device. 1 means on, 0 means off.

trunk/Documentation/driver-model/interface.txt

@@ -0,0 +1,129 @@
+
+Device Interfaces
+
+Introduction
+~~~~~~~~~~~~
+
+Device interfaces are the logical interfaces of device classes that correlate
+directly to userspace interfaces, like device nodes. 
+
+Each device class may have multiple interfaces through which you can 
+access the same device. An input device may support the mouse interface, 
+the 'evdev' interface, and the touchscreen interface. A SCSI disk would 
+support the disk interface, the SCSI generic interface, and possibly a raw 
+device interface. 
+
+Device interfaces are registered with the class they belong to. As devices
+are added to the class, they are added to each interface registered with
+the class. The interface is responsible for determining whether the device
+supports the interface or not. 
+
+
+Programming Interface
+~~~~~~~~~~~~~~~~~~~~~
+
+struct device_interface {
+	char			* name;
+	rwlock_t		lock;
+	u32			devnum;
+	struct device_class	* devclass;
+
+	struct list_head	node;
+	struct driver_dir_entry	dir;
+
+	int (*add_device)(struct device *);
+	int (*add_device)(struct intf_data *);
+};
+
+int interface_register(struct device_interface *);
+void interface_unregister(struct device_interface *);
+
+
+An interface must specify the device class it belongs to. It is added
+to that class's list of interfaces on registration.
+
+
+Interfaces can be added to a device class at any time. Whenever it is
+added, each device in the class is passed to the interface's
+add_device callback. When an interface is removed, each device is
+removed from the interface.
+
+
+Devices
+~~~~~~~
+Once a device is added to a device class, it is added to each
+interface that is registered with the device class. The class
+is expected to place a class-specific data structure in 
+struct device::class_data. The interface can use that (along with
+other fields of struct device) to determine whether or not the driver
+and/or device support that particular interface.
+
+
+Data
+~~~~
+
+struct intf_data {
+	struct list_head	node;
+	struct device_interface	* intf;
+	struct device 		* dev;
+	u32			intf_num;
+};
+
+int interface_add_data(struct interface_data *);
+
+The interface is responsible for allocating and initializing a struct 
+intf_data and calling interface_add_data() to add it to the device's list
+of interfaces it belongs to. This list will be iterated over when the device
+is removed from the class (instead of all possible interfaces for a class).
+This structure should probably be embedded in whatever per-device data 
+structure the interface is allocating anyway.
+
+Devices are enumerated within the interface. This happens in interface_add_data()
+and the enumerated value is stored in the struct intf_data for that device. 
+
+sysfs
+~~~~~
+Each interface is given a directory in the directory of the device
+class it belongs to:
+
+Interfaces get a directory in the class's directory as well:
+
+   class/
+   `-- input
+       |-- devices
+       |-- drivers
+       |-- mouse
+       `-- evdev
+
+When a device is added to the interface, a symlink is created that points 
+to the device's directory in the physical hierarchy:
+
+   class/
+   `-- input
+       |-- devices
+       |   `-- 1 -> ../../../root/pci0/00:1f.0/usb_bus/00:1f.2-1:0/
+       |-- drivers
+       |   `-- usb:usb_mouse -> ../../../bus/drivers/usb_mouse/
+       |-- mouse
+       |   `-- 1 -> ../../../root/pci0/00:1f.0/usb_bus/00:1f.2-1:0/
+       `-- evdev
+           `-- 1 -> ../../../root/pci0/00:1f.0/usb_bus/00:1f.2-1:0/
+
+
+Future Plans
+~~~~~~~~~~~~
+A device interface is correlated directly with a userspace interface
+for a device, specifically a device node. For instance, a SCSI disk
+exposes at least two interfaces to userspace: the standard SCSI disk
+interface and the SCSI generic interface. It might also export a raw
+device interface. 
+
+Many interfaces have a major number associated with them and each
+device gets a minor number. Or, multiple interfaces might share one
+major number, and each will receive a range of minor numbers (like in
+the case of input devices).
+
+These major and minor numbers could be stored in the interface
+structure. Major and minor allocations could happen when the interface
+is registered with the class, or via a helper function. 
+

trunk/Documentation/filesystems/vfs.txt

@@ -660,10 +660,11 @@ struct address_space_operations {
   releasepage: releasepage is called on PagePrivate pages to indicate
         that the page should be freed if possible.  ->releasepage
         should remove any private data from the page and clear the
-        PagePrivate flag. If releasepage() fails for some reason, it must
-	indicate failure with a 0 return value.
-	releasepage() is used in two distinct though related cases.  The
-	first is when the VM finds a clean page with no active users and
+        PagePrivate flag.  It may also remove the page from the
+        address_space.  If this fails for some reason, it may indicate
+        failure with a 0 return value.
+	This is used in two distinct though related cases.  The first
+        is when the VM finds a clean page with no active users and
         wants to make it a free page.  If ->releasepage succeeds, the
         page will be removed from the address_space and become free.
 

trunk/MAINTAINERS

@@ -2060,7 +2060,7 @@ F:	Documentation/blockdev/drbd/
 
 DRIVER CORE, KOBJECTS, DEBUGFS AND SYSFS
 M:	Greg Kroah-Hartman <gregkh@suse.de>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6.git
+T:	quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
 S:	Supported
 F:	Documentation/kobject.txt
 F:	drivers/base/
@@ -4064,8 +4064,9 @@ F:	drivers/scsi/NCR_D700.*
 
 NETEFFECT IWARP RNIC DRIVER (IW_NES)
 M:	Faisal Latif <faisal.latif@intel.com>
+M:	Chien Tung <chien.tin.tung@intel.com>
 L:	linux-rdma@vger.kernel.org
-W:	http://www.intel.com/Products/Server/Adapters/Server-Cluster/Server-Cluster-overview.htm
+W:	http://www.neteffect.com
 S:	Supported
 F:	drivers/infiniband/hw/nes/
 

trunk/Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 37
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc4
 NAME = Flesh-Eating Bats with Fangs
 
 # *DOCUMENTATION*

trunk/arch/arm/Kconfig

@@ -9,7 +9,7 @@ config ARM
 	select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
 	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
 	select HAVE_ARCH_KGDB
-	select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
+	select HAVE_KPROBES if (!XIP_KERNEL)
 	select HAVE_KRETPROBES if (HAVE_KPROBES)
 	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
 	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)

trunk/arch/arm/boot/Makefile

@@ -70,7 +70,12 @@ else
 $(obj)/uImage: LOADADDR=$(ZRELADDR)
 endif
 
+ifeq ($(CONFIG_THUMB2_KERNEL),y)
+# Set bit 0 to 1 so that "mov pc, rx" switches to Thumb-2 mode
+$(obj)/uImage: STARTADDR=$(shell echo $(LOADADDR) | sed -e "s/.$$/1/")
+else
 $(obj)/uImage: STARTADDR=$(LOADADDR)
+endif
 
 $(obj)/uImage:	$(obj)/zImage FORCE
 	$(call if_changed,uimage)

trunk/arch/arm/boot/bootp/init.S

@@ -73,8 +73,6 @@ move:		ldmia	r4!, {r7 - r10}		@ move 32-bytes at a time
 
 		.size	_start, . - _start
 
-		.align
-
 		.type	data,#object
 data:		.word	initrd_start		@ source initrd address
 		.word	initrd_phys		@ destination initrd address

trunk/arch/arm/boot/compressed/head.S

@@ -125,21 +125,16 @@ wait:		mrc	p14, 0, pc, c0, c1, 0
  * sort out different calling conventions
  */
 		.align
-		.arm				@ Always enter in ARM state
 start:
 		.type	start,#function
- THUMB(		adr	r12, BSYM(1f)	)
- THUMB(		bx	r12		)
- THUMB(		.rept	6		)
- ARM(		.rept	8		)
+		.rept	8
 		mov	r0, r0
 		.endr
 
 		b	1f
 		.word	0x016f2818		@ Magic numbers to help the loader
 		.word	start			@ absolute load/run zImage address
 		.word	_edata			@ zImage end address
- THUMB(		.thumb			)
 1:		mov	r7, r1			@ save architecture ID
 		mov	r8, r2			@ save atags pointer
 
@@ -179,8 +174,7 @@ not_angel:
 		ldr	sp, [r0, #28]
 #ifdef CONFIG_AUTO_ZRELADDR
 		@ determine final kernel image address
-		mov	r4, pc
-		and	r4, r4, #0xf8000000
+		and	r4, pc, #0xf8000000
 		add	r4, r4, #TEXT_OFFSET
 #else
 		ldr	r4, =zreladdr
@@ -451,8 +445,7 @@ __setup_mmu:	sub	r3, r4, #16384		@ Page directory size
  */
 		mov	r1, #0x1e
 		orr	r1, r1, #3 << 10
-		mov	r2, pc
-		mov	r2, r2, lsr #20
+		mov	r2, pc, lsr #20
 		orr	r1, r1, r2, lsl #20
 		add	r0, r3, r2, lsl #2
 		str	r1, [r0], #4

trunk/arch/arm/common/gic.c

@@ -146,15 +146,9 @@ static int gic_set_cpu(unsigned int irq, const struct cpumask *mask_val)
 	unsigned int shift = (irq % 4) * 8;
 	unsigned int cpu = cpumask_first(mask_val);
 	u32 val;
-	struct irq_desc *desc;
 
 	spin_lock(&irq_controller_lock);
-	desc = irq_to_desc(irq);
-	if (desc == NULL) {
-		spin_unlock(&irq_controller_lock);
-		return -EINVAL;
-	}
-	desc->node = cpu;
+	irq_desc[irq].node = cpu;
 	val = readl(reg) & ~(0xff << shift);
 	val |= 1 << (cpu + shift);
 	writel(val, reg);
@@ -216,7 +210,7 @@ void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
 void __init gic_dist_init(unsigned int gic_nr, void __iomem *base,
 			  unsigned int irq_start)
 {
-	unsigned int gic_irqs, irq_limit, i;
+	unsigned int max_irq, i;
 	u32 cpumask = 1 << smp_processor_id();
 
 	if (gic_nr >= MAX_GIC_NR)
@@ -232,49 +226,47 @@ void __init gic_dist_init(unsigned int gic_nr, void __iomem *base,
 
 	/*
 	 * Find out how many interrupts are supported.
+	 */
+	max_irq = readl(base + GIC_DIST_CTR) & 0x1f;
+	max_irq = (max_irq + 1) * 32;
+
+	/*
 	 * The GIC only supports up to 1020 interrupt sources.
+	 * Limit this to either the architected maximum, or the
+	 * platform maximum.
 	 */
-	gic_irqs = readl(base + GIC_DIST_CTR) & 0x1f;
-	gic_irqs = (gic_irqs + 1) * 32;
-	if (gic_irqs > 1020)
-		gic_irqs = 1020;
+	if (max_irq > max(1020, NR_IRQS))
+		max_irq = max(1020, NR_IRQS);
 
 	/*
 	 * Set all global interrupts to be level triggered, active low.
 	 */
-	for (i = 32; i < gic_irqs; i += 16)
+	for (i = 32; i < max_irq; i += 16)
 		writel(0, base + GIC_DIST_CONFIG + i * 4 / 16);
 
 	/*
 	 * Set all global interrupts to this CPU only.
 	 */
-	for (i = 32; i < gic_irqs; i += 4)
+	for (i = 32; i < max_irq; i += 4)
 		writel(cpumask, base + GIC_DIST_TARGET + i * 4 / 4);
 
 	/*
 	 * Set priority on all global interrupts.
 	 */
-	for (i = 32; i < gic_irqs; i += 4)
+	for (i = 32; i < max_irq; i += 4)
 		writel(0xa0a0a0a0, base + GIC_DIST_PRI + i * 4 / 4);
 
 	/*
 	 * Disable all interrupts.  Leave the PPI and SGIs alone
 	 * as these enables are banked registers.
 	 */
-	for (i = 32; i < gic_irqs; i += 32)
+	for (i = 32; i < max_irq; i += 32)
 		writel(0xffffffff, base + GIC_DIST_ENABLE_CLEAR + i * 4 / 32);
 
-	/*
-	 * Limit number of interrupts registered to the platform maximum
-	 */
-	irq_limit = gic_data[gic_nr].irq_offset + gic_irqs;
-	if (WARN_ON(irq_limit > NR_IRQS))
-		irq_limit = NR_IRQS;
-
 	/*
 	 * Setup the Linux IRQ subsystem.
 	 */
-	for (i = irq_start; i < irq_limit; i++) {
+	for (i = irq_start; i < gic_data[gic_nr].irq_offset + max_irq; i++) {
 		set_irq_chip(i, &gic_chip);
 		set_irq_chip_data(i, &gic_data[gic_nr]);
 		set_irq_handler(i, handle_level_irq);

trunk/arch/arm/kernel/entry-armv.S

@@ -911,7 +911,7 @@ __kuser_cmpxchg:				@ 0xffff0fc0
 	 * A special ghost syscall is used for that (see traps.c).
 	 */
 	stmfd	sp!, {r7, lr}
-	ldr	r7, 1f			@ it's 20 bits
+	ldr	r7, =1f			@ it's 20 bits
 	swi	__ARM_NR_cmpxchg
 	ldmfd	sp!, {r7, pc}
 1:	.word	__ARM_NR_cmpxchg