---

yaml
---
r: 132197
b: refs/heads/master
c: 932088b
h: refs/heads/master
i:
  132195: 0704e48
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dc529a4fe1ae4667c819437a94185e8581e1e680
+refs/heads/master: 932088b136c3aeace052cc23179f54022ce3f723

trunk/Documentation/RCU/checklist.txt

@@ -298,3 +298,15 @@ over a rather long period of time, but improvements are always welcome!
 
 	Note that, rcu_assign_pointer() and rcu_dereference() relate 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
+	carrying out some otherwise-destructive operation.  It is
+	therefore critically important to -first- remove any path
+	that readers can follow that could be affected by the
+	destructive operation, and -only- -then- invoke call_rcu(),
+	synchronize_rcu(), or friends.
+
+	Because these primitives only wait for pre-existing readers,
+	it is the caller's responsibility to guarantee safety to
+	any subsequent readers.

trunk/arch/m68knommu/platform/5206e/config.c

@@ -17,6 +17,7 @@
 #include <asm/coldfire.h>
 #include <asm/mcfsim.h>
 #include <asm/mcfdma.h>
+#include <asm/mcfuart.h>
 
 /***************************************************************************/
 

trunk/arch/m68knommu/platform/528x/config.c

@@ -24,7 +24,6 @@
 #include <asm/coldfire.h>
 #include <asm/mcfsim.h>
 #include <asm/mcfuart.h>
-#include <asm/mcfqspi.h>
 
 #ifdef CONFIG_MTD_PARTITIONS
 #include <linux/mtd/partitions.h>
@@ -33,233 +32,6 @@
 /***************************************************************************/
 
 void coldfire_reset(void);
-static void coldfire_qspi_cs_control(u8 cs, u8 command);
-
-/***************************************************************************/
-
-#if defined(CONFIG_SPI)
-
-#if defined(CONFIG_WILDFIRE)
-#define SPI_NUM_CHIPSELECTS 	0x02
-#define SPI_PAR_VAL		0x07  /* Enable DIN, DOUT, CLK */
-#define SPI_CS_MASK		0x18
-
-#define FLASH_BLOCKSIZE		(1024*64)
-#define FLASH_NUMBLOCKS		16
-#define FLASH_TYPE		"m25p80"
-
-#define M25P80_CS		0
-#define MMC_CS			1
-
-#ifdef CONFIG_MTD_PARTITIONS
-static struct mtd_partition stm25p_partitions[] = {
-	/* sflash */
-	[0] = {
-		.name = "stm25p80",
-		.offset = 0x00000000,
-		.size = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS,
-		.mask_flags = 0
-	}
-};
-
-#endif
-
-#elif defined(CONFIG_WILDFIREMOD)
-
-#define SPI_NUM_CHIPSELECTS	0x08
-#define SPI_PAR_VAL		0x07  /* Enable DIN, DOUT, CLK */
-#define SPI_CS_MASK		0x78
-
-#define FLASH_BLOCKSIZE		(1024*64)
-#define FLASH_NUMBLOCKS		64
-#define FLASH_TYPE		"m25p32"
-/* Reserve 1M for the kernel parition */
-#define FLASH_KERNEL_SIZE   (1024 * 1024)
-
-#define M25P80_CS		5
-#define MMC_CS			6
-
-#ifdef CONFIG_MTD_PARTITIONS
-static struct mtd_partition stm25p_partitions[] = {
-	/* sflash */
-	[0] = {
-		.name = "kernel",
-		.offset = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS - FLASH_KERNEL_SIZE,
-		.size = FLASH_KERNEL_SIZE,
-		.mask_flags = 0
-	},
-	[1] = {
-		.name = "image",
-		.offset = 0x00000000,
-		.size = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS - FLASH_KERNEL_SIZE,
-		.mask_flags = 0
-	},
-	[2] = {
-		.name = "all",
-		.offset = 0x00000000,
-		.size = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS,
-		.mask_flags = 0
-	}
-};
-#endif
-
-#else
-#define SPI_NUM_CHIPSELECTS 	0x04
-#define SPI_PAR_VAL		0x7F  /* Enable DIN, DOUT, CLK, CS0 - CS4 */
-#endif
-
-#ifdef MMC_CS
-static struct coldfire_spi_chip flash_chip_info = {
-	.mode = SPI_MODE_0,
-	.bits_per_word = 16,
-	.del_cs_to_clk = 17,
-	.del_after_trans = 1,
-	.void_write_data = 0
-};
-
-static struct coldfire_spi_chip mmc_chip_info = {
-	.mode = SPI_MODE_0,
-	.bits_per_word = 16,
-	.del_cs_to_clk = 17,
-	.del_after_trans = 1,
-	.void_write_data = 0xFFFF
-};
-#endif
-
-#ifdef M25P80_CS
-static struct flash_platform_data stm25p80_platform_data = {
-	.name = "ST M25P80 SPI Flash chip",
-#ifdef CONFIG_MTD_PARTITIONS
-	.parts = stm25p_partitions,
-	.nr_parts = sizeof(stm25p_partitions) / sizeof(*stm25p_partitions),
-#endif
-	.type = FLASH_TYPE
-};
-#endif
-
-static struct spi_board_info spi_board_info[] __initdata = {
-#ifdef M25P80_CS
-	{
-		.modalias = "m25p80",
-		.max_speed_hz = 16000000,
-		.bus_num = 1,
-		.chip_select = M25P80_CS,
-		.platform_data = &stm25p80_platform_data,
-		.controller_data = &flash_chip_info
-	},
-#endif
-#ifdef MMC_CS
-	{
-		.modalias = "mmc_spi",
-		.max_speed_hz = 16000000,
-		.bus_num = 1,
-		.chip_select = MMC_CS,
-		.controller_data = &mmc_chip_info
-	}
-#endif
-};
-
-static struct coldfire_spi_master coldfire_master_info = {
-	.bus_num = 1,
-	.num_chipselect = SPI_NUM_CHIPSELECTS,
-	.irq_source = MCF5282_QSPI_IRQ_SOURCE,
-	.irq_vector = MCF5282_QSPI_IRQ_VECTOR,
-	.irq_mask = ((0x01 << MCF5282_QSPI_IRQ_SOURCE) | 0x01),
-	.irq_lp = 0x2B,  /* Level 5 and Priority 3 */
-	.par_val = SPI_PAR_VAL,
-	.cs_control = coldfire_qspi_cs_control,
-};
-
-static struct resource coldfire_spi_resources[] = {
-	[0] = {
-		.name = "qspi-par",
-		.start = MCF5282_QSPI_PAR,
-		.end = MCF5282_QSPI_PAR,
-		.flags = IORESOURCE_MEM
-	},
-
-	[1] = {
-		.name = "qspi-module",
-		.start = MCF5282_QSPI_QMR,
-		.end = MCF5282_QSPI_QMR + 0x18,
-		.flags = IORESOURCE_MEM
-	},
-
-	[2] = {
-		.name = "qspi-int-level",
-		.start = MCF5282_INTC0 + MCFINTC_ICR0 + MCF5282_QSPI_IRQ_SOURCE,
-		.end = MCF5282_INTC0 + MCFINTC_ICR0 + MCF5282_QSPI_IRQ_SOURCE,
-		.flags = IORESOURCE_MEM
-	},
-
-	[3] = {
-		.name = "qspi-int-mask",
-		.start = MCF5282_INTC0 + MCFINTC_IMRL,
-		.end = MCF5282_INTC0 + MCFINTC_IMRL,
-		.flags = IORESOURCE_MEM
-	}
-};
-
-static struct platform_device coldfire_spi = {
-	.name = "spi_coldfire",
-	.id = -1,
-	.resource = coldfire_spi_resources,
-	.num_resources = ARRAY_SIZE(coldfire_spi_resources),
-	.dev = {
-		.platform_data = &coldfire_master_info,
-	}
-};
-
-static void coldfire_qspi_cs_control(u8 cs, u8 command)
-{
-	u8 cs_bit = ((0x01 << cs) << 3) & SPI_CS_MASK;
-
-#if defined(CONFIG_WILDFIRE)
-	u8 cs_mask = ~(((0x01 << cs) << 3) & SPI_CS_MASK);
-#endif
-#if defined(CONFIG_WILDFIREMOD)
-	u8 cs_mask = (cs << 3) & SPI_CS_MASK;
-#endif
-
-	/*
-	 * Don't do anything if the chip select is not
-	 * one of the port qs pins.
-	 */
-	if (command & QSPI_CS_INIT) {
-#if defined(CONFIG_WILDFIRE)
-		MCF5282_GPIO_DDRQS  |= cs_bit;
-		MCF5282_GPIO_PQSPAR &= ~cs_bit;
-#endif
-
-#if defined(CONFIG_WILDFIREMOD)
-		MCF5282_GPIO_DDRQS  |= SPI_CS_MASK;
-		MCF5282_GPIO_PQSPAR &= ~SPI_CS_MASK;
-#endif
-	}
-
-	if (command & QSPI_CS_ASSERT) {
-		MCF5282_GPIO_PORTQS &= ~SPI_CS_MASK;
-		MCF5282_GPIO_PORTQS |= cs_mask;
-	} else if (command & QSPI_CS_DROP) {
-		MCF5282_GPIO_PORTQS |= SPI_CS_MASK;
-	}
-}
-
-static int __init spi_dev_init(void)
-{
-	int retval;
-
-	retval = platform_device_register(&coldfire_spi);
-	if (retval < 0)
-		return retval;
-
-	if (ARRAY_SIZE(spi_board_info))
-		retval = spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
-
-	return retval;
-}
-
-#endif /* CONFIG_SPI */
 
 /***************************************************************************/
 

trunk/arch/sh/boards/board-ap325rxa.c

@@ -22,6 +22,7 @@
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_gpio.h>
+#include <media/soc_camera.h>
 #include <media/soc_camera_platform.h>
 #include <media/sh_mobile_ceu.h>
 #include <video/sh_mobile_lcdc.h>

trunk/arch/x86/mm/kmmio.c

@@ -451,23 +451,24 @@ static void rcu_free_kmmio_fault_pages(struct rcu_head *head)
 
 static void remove_kmmio_fault_pages(struct rcu_head *head)
 {
-	struct kmmio_delayed_release *dr = container_of(
-						head,
-						struct kmmio_delayed_release,
-						rcu);
+	struct kmmio_delayed_release *dr =
+		container_of(head, struct kmmio_delayed_release, rcu);
 	struct kmmio_fault_page *p = dr->release_list;
 	struct kmmio_fault_page **prevp = &dr->release_list;
 	unsigned long flags;
+
 	spin_lock_irqsave(&kmmio_lock, flags);
 	while (p) {
-		if (!p->count)
+		if (!p->count) {
 			list_del_rcu(&p->list);
-		else
+			prevp = &p->release_next;
+		} else {
 			*prevp = p->release_next;
-		prevp = &p->release_next;
+		}
 		p = p->release_next;
 	}
 	spin_unlock_irqrestore(&kmmio_lock, flags);
+
 	/* This is the real RCU destroy call. */
 	call_rcu(&dr->rcu, rcu_free_kmmio_fault_pages);
 }

trunk/arch/x86/mm/pageattr.c

@@ -515,6 +515,17 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 	 * primary protection behavior:
 	 */
 	__set_pmd_pte(kpte, address, mk_pte(base, __pgprot(_KERNPG_TABLE)));
+
+	/*
+	 * Intel Atom errata AAH41 workaround.
+	 *
+	 * The real fix should be in hw or in a microcode update, but
+	 * we also probabilistically try to reduce the window of having
+	 * a large TLB mixed with 4K TLBs while instruction fetches are
+	 * going on.
+	 */
+	__flush_tlb_all();
+
 	base = NULL;
 
 out_unlock:

trunk/arch/xtensa/Kconfig

@@ -103,9 +103,6 @@ config MATH_EMULATION
 	help
 	Can we use information of configuration file?
 
-config HIGHMEM
-	bool "High memory support"
-
 endmenu
 
 menu "Platform options"

trunk/arch/xtensa/kernel/setup.c

@@ -44,6 +44,8 @@
 #include <asm/setup.h>
 #include <asm/param.h>
 
+#include <platform/hardware.h>
+
 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
 struct screen_info screen_info = { 0, 24, 0, 0, 0, 80, 0, 0, 0, 24, 1, 16};
 #endif

trunk/arch/xtensa/kernel/traps.c

@@ -30,6 +30,7 @@
 #include <linux/stringify.h>
 #include <linux/kallsyms.h>
 #include <linux/delay.h>
+#include <linux/hardirq.h>
 
 #include <asm/ptrace.h>
 #include <asm/timex.h>

trunk/arch/xtensa/mm/fault.c

@@ -14,6 +14,7 @@
 
 #include <linux/mm.h>
 #include <linux/module.h>
+#include <linux/hardirq.h>
 #include <asm/mmu_context.h>
 #include <asm/cacheflush.h>
 #include <asm/hardirq.h>

trunk/arch/xtensa/platforms/iss/console.c

@@ -140,16 +140,14 @@ static void rs_poll(unsigned long priv)
 }
 
 
-static void rs_put_char(struct tty_struct *tty, unsigned char ch)
+static int rs_put_char(struct tty_struct *tty, unsigned char ch)
 {
 	char buf[2];
 
-	if (!tty)
-		return;
-
 	buf[0] = ch;
 	buf[1] = '\0';		/* Is this NULL necessary? */
 	__simc (SYS_write, 1, (unsigned long) buf, 1, 0, 0);
+	return 1;
 }
 
 static void rs_flush_chars(struct tty_struct *tty)

trunk/drivers/base/node.c

@@ -303,7 +303,7 @@ int unregister_mem_sect_under_nodes(struct memory_block *mem_blk)
 	sect_start_pfn = section_nr_to_pfn(mem_blk->phys_index);
 	sect_end_pfn = sect_start_pfn + PAGES_PER_SECTION - 1;
 	for (pfn = sect_start_pfn; pfn <= sect_end_pfn; pfn++) {
-		unsigned int nid;
+		int nid;
 
 		nid = get_nid_for_pfn(pfn);
 		if (nid < 0)