Merge tag 'mfd-for-linus-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull MFD Fixes from Samuel Ortiz:
- Three Palmas fixes, One of them being a build error fix.
- Two mc13xx fixes. One for fixing an SPI regmap configuration and
another one for working around an i.Mx hardware bug.
- One omap-usb regression fix.
- One twl6040 build breakage fix.
- One file deletion (ab5500-core.h) that was overlooked during the last
merge window.
* tag 'mfd-for-linus-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Add missing hunk to change palmas irq to clear on read
mfd: Fix palmas regulator pdata missing
mfd: USB: Fix the omap-usb EHCI ULPI PHY reset fix issues.
mfd: Update twl6040 Kconfig to avoid build breakage
mfd: Delete ab5500-core.h
mfd: mc13xxx workaround SPI hardware bug on i.Mx
mfd: Fix mc13xxx SPI regmap
mfd: Add terminating entry for i2c_device_id palmas table
diff --git a/MAINTAINERS b/MAINTAINERS
index 03df1d1..d1d9ae6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4857,6 +4857,7 @@
L: linux-omap@vger.kernel.org
S: Maintained
F: arch/arm/*omap*/*pm*
+F: drivers/cpufreq/omap-cpufreq.c
OMAP POWERDOMAIN/CLOCKDOMAIN SOC ADAPTATION LAYER SUPPORT
M: Rajendra Nayak <rnayak@ti.com>
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 9854ff4..11828e6 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -176,7 +176,6 @@
CONFIG_USB_DEVICEFS=y
CONFIG_USB_SUSPEND=y
CONFIG_USB_MON=y
-CONFIG_USB_EHCI_HCD=y
CONFIG_USB_WDM=y
CONFIG_USB_STORAGE=y
CONFIG_USB_LIBUSUAL=y
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index f7b58609..6227e95 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -31,12 +31,16 @@
*
* CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this
* clockdomain. (Currently, this applies to OMAP3 clockdomains only.)
+ * CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is
+ * active whenever the MPU is active. True for interconnects and
+ * the WKUP clockdomains.
*/
#define CLKDM_CAN_FORCE_SLEEP (1 << 0)
#define CLKDM_CAN_FORCE_WAKEUP (1 << 1)
#define CLKDM_CAN_ENABLE_AUTO (1 << 2)
#define CLKDM_CAN_DISABLE_AUTO (1 << 3)
#define CLKDM_NO_AUTODEPS (1 << 4)
+#define CLKDM_ACTIVE_WITH_MPU (1 << 5)
#define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO)
#define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)
diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
index 839145e1..4972219 100644
--- a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
+++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
@@ -88,4 +88,5 @@
.name = "wkup_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
.dep_bit = OMAP_EN_WKUP_SHIFT,
+ .flags = CLKDM_ACTIVE_WITH_MPU,
};
diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c
index c534258..7f2133a 100644
--- a/arch/arm/mach-omap2/clockdomains44xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains44xx_data.c
@@ -381,7 +381,7 @@
.cm_inst = OMAP4430_PRM_WKUP_CM_INST,
.clkdm_offs = OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS,
.dep_bit = OMAP4430_L4WKUP_STATDEP_SHIFT,
- .flags = CLKDM_CAN_HWSUP,
+ .flags = CLKDM_CAN_HWSUP | CLKDM_ACTIVE_WITH_MPU,
};
static struct clockdomain emu_sys_44xx_clkdm = {
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 7731936..2d710f5 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1124,15 +1124,18 @@
* _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG
* @oh: struct omap_hwmod *
*
- * If module is marked as SWSUP_SIDLE, force the module out of slave
- * idle; otherwise, configure it for smart-idle. If module is marked
- * as SWSUP_MSUSPEND, force the module out of master standby;
- * otherwise, configure it for smart-standby. No return value.
+ * Ensure that the OCP_SYSCONFIG register for the IP block represented
+ * by @oh is set to indicate to the PRCM that the IP block is active.
+ * Usually this means placing the module into smart-idle mode and
+ * smart-standby, but if there is a bug in the automatic idle handling
+ * for the IP block, it may need to be placed into the force-idle or
+ * no-idle variants of these modes. No return value.
*/
static void _enable_sysc(struct omap_hwmod *oh)
{
u8 idlemode, sf;
u32 v;
+ bool clkdm_act;
if (!oh->class->sysc)
return;
@@ -1141,8 +1144,16 @@
sf = oh->class->sysc->sysc_flags;
if (sf & SYSC_HAS_SIDLEMODE) {
- idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
- HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
+ clkdm_act = ((oh->clkdm &&
+ oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) ||
+ (oh->_clk && oh->_clk->clkdm &&
+ oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU));
+ if (clkdm_act && !(oh->class->sysc->idlemodes &
+ (SIDLE_SMART | SIDLE_SMART_WKUP)))
+ idlemode = HWMOD_IDLEMODE_FORCE;
+ else
+ idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
+ HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}
@@ -1208,8 +1219,13 @@
sf = oh->class->sysc->sysc_flags;
if (sf & SYSC_HAS_SIDLEMODE) {
- idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
- HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
+ /* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */
+ if (oh->flags & HWMOD_SWSUP_SIDLE ||
+ !(oh->class->sysc->idlemodes &
+ (SIDLE_SMART | SIDLE_SMART_WKUP)))
+ idlemode = HWMOD_IDLEMODE_FORCE;
+ else
+ idlemode = HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c
index e859fcd..fde0d23 100644
--- a/arch/arm/mach-shmobile/platsmp.c
+++ b/arch/arm/mach-shmobile/platsmp.c
@@ -22,8 +22,13 @@
#include <mach/common.h>
#include <mach/emev2.h>
+#ifdef CONFIG_ARCH_SH73A0
#define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \
of_machine_is_compatible("renesas,sh73a0"))
+#else
+#define is_sh73a0() (0)
+#endif
+
#define is_r8a7779() machine_is_marzen()
#ifdef CONFIG_ARCH_EMEV2
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 1509a3c..4fd93f5 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -625,11 +625,6 @@
&ab8500_device,
};
-static struct platform_device *snowball_of_platform_devs[] __initdata = {
- &snowball_led_dev,
- &snowball_key_dev,
-};
-
static void __init mop500_init_machine(void)
{
struct device *parent = NULL;
@@ -769,6 +764,11 @@
#ifdef CONFIG_MACH_UX500_DT
+static struct platform_device *snowball_of_platform_devs[] __initdata = {
+ &snowball_led_dev,
+ &snowball_key_dev,
+};
+
struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
/* Requires DMA and call-back bindings. */
OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat),
@@ -786,6 +786,8 @@
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL),
+ /* Requires device name bindings. */
+ OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL),
{},
};
diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c
index 741e71f..66e7f00 100644
--- a/arch/arm/mach-ux500/timer.c
+++ b/arch/arm/mach-ux500/timer.c
@@ -63,8 +63,10 @@
/* TODO: Once MTU has been DT:ed place code above into else. */
if (of_have_populated_dt()) {
+#ifdef CONFIG_OF
np = of_find_matching_node(NULL, prcmu_timer_of_match);
if (!np)
+#endif
goto dt_fail;
tmp_base = of_iomap(np, 0);
diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h
index a09230a..62ef176 100644
--- a/arch/h8300/include/asm/pgtable.h
+++ b/arch/h8300/include/asm/pgtable.h
@@ -70,4 +70,7 @@
#define VMALLOC_END 0xffffffff
#define arch_enter_lazy_cpu_mode() do {} while (0)
+
+#include <asm-generic/pgtable.h>
+
#endif /* _H8300_PGTABLE_H */
diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h
index 356068c..8725d1a 100644
--- a/arch/h8300/include/asm/uaccess.h
+++ b/arch/h8300/include/asm/uaccess.h
@@ -100,7 +100,6 @@
break; \
default: \
__gu_err = __get_user_bad(); \
- __gu_val = 0; \
break; \
} \
(x) = __gu_val; \
@@ -159,4 +158,6 @@
return 0;
}
+#define __clear_user clear_user
+
#endif /* _H8300_UACCESS_H */
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
index fca1037..5adaada 100644
--- a/arch/h8300/kernel/signal.c
+++ b/arch/h8300/kernel/signal.c
@@ -447,7 +447,7 @@
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*/
-statis void do_signal(struct pt_regs *regs)
+static void do_signal(struct pt_regs *regs)
{
siginfo_t info;
int signr;
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index 32263a1..e0f7419 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -27,6 +27,7 @@
#include <linux/profile.h>
#include <asm/io.h>
+#include <asm/irq_regs.h>
#include <asm/timer.h>
#define TICK_SIZE (tick_nsec / 1000)
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index ea45353..075d87a 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -129,7 +129,7 @@
/* setup reset gpio used by pci */
reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
- if (reset_gpio > 0)
+ if (gpio_is_valid(reset_gpio))
devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
/* enable auto-switching between PCI and EBU */
@@ -192,7 +192,7 @@
ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN);
/* toggle reset pin */
- if (reset_gpio > 0) {
+ if (gpio_is_valid(reset_gpio)) {
__gpio_set_value(reset_gpio, 0);
wmb();
mdelay(1);
diff --git a/arch/mn10300/include/asm/ptrace.h b/arch/mn10300/include/asm/ptrace.h
index 55b79ef..44251b9 100644
--- a/arch/mn10300/include/asm/ptrace.h
+++ b/arch/mn10300/include/asm/ptrace.h
@@ -81,9 +81,6 @@
#define PTRACE_GETFPREGS 14
#define PTRACE_SETFPREGS 15
-/* options set using PTRACE_SETOPTIONS */
-#define PTRACE_O_TRACESYSGOOD 0x00000001
-
#ifdef __KERNEL__
#define user_mode(regs) (((regs)->epsw & EPSW_nSL) == EPSW_nSL)
diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h
index 08251d6..ac519bb 100644
--- a/arch/mn10300/include/asm/thread_info.h
+++ b/arch/mn10300/include/asm/thread_info.h
@@ -123,7 +123,7 @@
}
#ifndef CONFIG_KGDB
-void arch_release_thread_info(struct thread_info *ti)
+void arch_release_thread_info(struct thread_info *ti);
#endif
#define get_thread_info(ti) get_task_struct((ti)->task)
#define put_thread_info(ti) put_task_struct((ti)->task)
diff --git a/arch/mn10300/include/asm/timex.h b/arch/mn10300/include/asm/timex.h
index bd4e90d..f8e6642 100644
--- a/arch/mn10300/include/asm/timex.h
+++ b/arch/mn10300/include/asm/timex.h
@@ -11,7 +11,6 @@
#ifndef _ASM_TIMEX_H
#define _ASM_TIMEX_H
-#include <asm/hardirq.h>
#include <unit/timex.h>
#define TICK_SIZE (tick_nsec / 1000)
@@ -30,16 +29,6 @@
extern int init_clockevents(void);
extern int init_clocksource(void);
-static inline void setup_jiffies_interrupt(int irq,
- struct irqaction *action)
-{
- u16 tmp;
- setup_irq(irq, action);
- set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
- GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
- tmp = GxICR(irq);
-}
-
#endif /* __KERNEL__ */
#endif /* _ASM_TIMEX_H */
diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
index 69cae02..ccce35e 100644
--- a/arch/mn10300/kernel/cevt-mn10300.c
+++ b/arch/mn10300/kernel/cevt-mn10300.c
@@ -70,6 +70,16 @@
{
}
+static inline void setup_jiffies_interrupt(int irq,
+ struct irqaction *action)
+{
+ u16 tmp;
+ setup_irq(irq, action);
+ set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
+ GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
+ tmp = GxICR(irq);
+}
+
int __init init_clockevents(void)
{
struct clock_event_device *cd;
diff --git a/arch/mn10300/kernel/internal.h b/arch/mn10300/kernel/internal.h
index a5ac755..2df4401 100644
--- a/arch/mn10300/kernel/internal.h
+++ b/arch/mn10300/kernel/internal.h
@@ -9,6 +9,8 @@
* 2 of the Licence, or (at your option) any later version.
*/
+#include <linux/irqreturn.h>
+
struct clocksource;
struct clock_event_device;
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 2381df8..35932a8 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -170,9 +170,9 @@
case SC1TXIRQ:
#ifdef CONFIG_MN10300_TTYSM1_TIMER12
case TM12IRQ:
-#elif CONFIG_MN10300_TTYSM1_TIMER9
+#elif defined(CONFIG_MN10300_TTYSM1_TIMER9)
case TM9IRQ:
-#elif CONFIG_MN10300_TTYSM1_TIMER3
+#elif defined(CONFIG_MN10300_TTYSM1_TIMER3)
case TM3IRQ:
#endif /* CONFIG_MN10300_TTYSM1_TIMER12 */
#endif /* CONFIG_MN10300_TTYSM1 */
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
index 94a9c6d..b900e5a 100644
--- a/arch/mn10300/kernel/traps.c
+++ b/arch/mn10300/kernel/traps.c
@@ -26,6 +26,7 @@
#include <linux/kdebug.h>
#include <linux/bug.h>
#include <linux/irq.h>
+#include <linux/export.h>
#include <asm/processor.h>
#include <linux/uaccess.h>
#include <asm/io.h>
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 159acb0..e244ebe 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -15,6 +15,7 @@
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/gfp.h>
+#include <linux/export.h>
#include <asm/io.h>
static unsigned long pci_sram_allocated = 0xbc000000;
diff --git a/arch/mn10300/unit-asb2303/include/unit/timex.h b/arch/mn10300/unit-asb2303/include/unit/timex.h
index cc18fe7..c37f983 100644
--- a/arch/mn10300/unit-asb2303/include/unit/timex.h
+++ b/arch/mn10300/unit-asb2303/include/unit/timex.h
@@ -11,10 +11,6 @@
#ifndef _ASM_UNIT_TIMEX_H
#define _ASM_UNIT_TIMEX_H
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
#include <asm/timer-regs.h>
#include <unit/clock.h>
#include <asm/param.h>
diff --git a/arch/mn10300/unit-asb2303/smc91111.c b/arch/mn10300/unit-asb2303/smc91111.c
index 43c2464..5367769 100644
--- a/arch/mn10300/unit-asb2303/smc91111.c
+++ b/arch/mn10300/unit-asb2303/smc91111.c
@@ -15,6 +15,7 @@
#include <linux/platform_device.h>
#include <asm/io.h>
+#include <asm/irq.h>
#include <asm/timex.h>
#include <asm/processor.h>
#include <asm/intctl-regs.h>
diff --git a/arch/mn10300/unit-asb2305/include/unit/timex.h b/arch/mn10300/unit-asb2305/include/unit/timex.h
index 758af30..4cefc22 100644
--- a/arch/mn10300/unit-asb2305/include/unit/timex.h
+++ b/arch/mn10300/unit-asb2305/include/unit/timex.h
@@ -11,10 +11,6 @@
#ifndef _ASM_UNIT_TIMEX_H
#define _ASM_UNIT_TIMEX_H
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
#include <asm/timer-regs.h>
#include <unit/clock.h>
#include <asm/param.h>
diff --git a/arch/mn10300/unit-asb2305/unit-init.c b/arch/mn10300/unit-asb2305/unit-init.c
index e1becd6..bc4adfa 100644
--- a/arch/mn10300/unit-asb2305/unit-init.c
+++ b/arch/mn10300/unit-asb2305/unit-init.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/io.h>
+#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/processor.h>
#include <asm/intctl-regs.h>
diff --git a/arch/mn10300/unit-asb2364/include/unit/timex.h b/arch/mn10300/unit-asb2364/include/unit/timex.h
index ddb7ed0..42f32db 100644
--- a/arch/mn10300/unit-asb2364/include/unit/timex.h
+++ b/arch/mn10300/unit-asb2364/include/unit/timex.h
@@ -11,10 +11,6 @@
#ifndef _ASM_UNIT_TIMEX_H
#define _ASM_UNIT_TIMEX_H
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
#include <asm/timer-regs.h>
#include <unit/clock.h>
#include <asm/param.h>
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 6eb75b8..0554ab0 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -86,8 +86,8 @@
}
#ifdef CONFIG_PPC_BOOK3E
-#define __hard_irq_enable() asm volatile("wrteei 1" : : : "memory");
-#define __hard_irq_disable() asm volatile("wrteei 0" : : : "memory");
+#define __hard_irq_enable() asm volatile("wrteei 1" : : : "memory")
+#define __hard_irq_disable() asm volatile("wrteei 0" : : : "memory")
#else
#define __hard_irq_enable() __mtmsrd(local_paca->kernel_msr | MSR_EE, 1)
#define __hard_irq_disable() __mtmsrd(local_paca->kernel_msr, 1)
@@ -125,6 +125,8 @@
return !regs->softe;
}
+extern bool prep_irq_for_idle(void);
+
#else /* CONFIG_PPC64 */
#define SET_MSR_EE(x) mtmsr(x)
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 1b41502..1f017bb 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -229,7 +229,7 @@
*/
if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
__hard_irq_disable();
-#ifdef CONFIG_TRACE_IRQFLAG
+#ifdef CONFIG_TRACE_IRQFLAGS
else {
/*
* We should already be hard disabled here. We had bugs
@@ -286,6 +286,52 @@
__hard_irq_enable();
}
+/*
+ * This is a helper to use when about to go into idle low-power
+ * when the latter has the side effect of re-enabling interrupts
+ * (such as calling H_CEDE under pHyp).
+ *
+ * You call this function with interrupts soft-disabled (this is
+ * already the case when ppc_md.power_save is called). The function
+ * will return whether to enter power save or just return.
+ *
+ * In the former case, it will have notified lockdep of interrupts
+ * being re-enabled and generally sanitized the lazy irq state,
+ * and in the latter case it will leave with interrupts hard
+ * disabled and marked as such, so the local_irq_enable() call
+ * in cpu_idle() will properly re-enable everything.
+ */
+bool prep_irq_for_idle(void)
+{
+ /*
+ * First we need to hard disable to ensure no interrupt
+ * occurs before we effectively enter the low power state
+ */
+ hard_irq_disable();
+
+ /*
+ * If anything happened while we were soft-disabled,
+ * we return now and do not enter the low power state.
+ */
+ if (lazy_irq_pending())
+ return false;
+
+ /* Tell lockdep we are about to re-enable */
+ trace_hardirqs_on();
+
+ /*
+ * Mark interrupts as soft-enabled and clear the
+ * PACA_IRQ_HARD_DIS from the pending mask since we
+ * are about to hard enable as well as a side effect
+ * of entering the low power state.
+ */
+ local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+ local_paca->soft_enabled = 1;
+
+ /* Tell the caller to enter the low power state */
+ return true;
+}
+
#endif /* CONFIG_PPC64 */
int arch_show_interrupts(struct seq_file *p, int prec)
diff --git a/arch/powerpc/kvm/book3s_pr_papr.c b/arch/powerpc/kvm/book3s_pr_papr.c
index 3ff9013..ee02b30 100644
--- a/arch/powerpc/kvm/book3s_pr_papr.c
+++ b/arch/powerpc/kvm/book3s_pr_papr.c
@@ -241,6 +241,7 @@
case H_PUT_TCE:
return kvmppc_h_pr_put_tce(vcpu);
case H_CEDE:
+ vcpu->arch.shared->msr |= MSR_EE;
kvm_vcpu_block(vcpu);
clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
vcpu->stat.halt_wakeup++;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 6e8f677..1e95556 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -639,7 +639,7 @@
unsigned int n, rc, ranges, is_kexec_kdump = 0;
unsigned long lmb_size, base, size, sz;
int nid;
- struct assoc_arrays aa;
+ struct assoc_arrays aa = { .arrays = NULL };
n = of_get_drconf_memory(memory, &dm);
if (!n)
diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c
index efdacc8..d17e98b 100644
--- a/arch/powerpc/platforms/cell/pervasive.c
+++ b/arch/powerpc/platforms/cell/pervasive.c
@@ -42,11 +42,9 @@
{
unsigned long ctrl, thread_switch_control;
- /*
- * We need to hard disable interrupts, the local_irq_enable() done by
- * our caller upon return will hard re-enable.
- */
- hard_irq_disable();
+ /* Ensure our interrupt state is properly tracked */
+ if (!prep_irq_for_idle())
+ return;
ctrl = mfspr(SPRN_CTRLF);
@@ -81,6 +79,9 @@
*/
ctrl &= ~(CTRL_RUNLATCH | CTRL_TE);
mtspr(SPRN_CTRLT, ctrl);
+
+ /* Re-enable interrupts in MSR */
+ __hard_irq_enable();
}
static int cbe_system_reset_exception(struct pt_regs *regs)
diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c
index e61483e..c71be66 100644
--- a/arch/powerpc/platforms/pseries/processor_idle.c
+++ b/arch/powerpc/platforms/pseries/processor_idle.c
@@ -99,15 +99,18 @@
static void check_and_cede_processor(void)
{
/*
- * Interrupts are soft-disabled at this point,
- * but not hard disabled. So an interrupt might have
- * occurred before entering NAP, and would be potentially
- * lost (edge events, decrementer events, etc...) unless
- * we first hard disable then check.
+ * Ensure our interrupt state is properly tracked,
+ * also checks if no interrupt has occurred while we
+ * were soft-disabled
*/
- hard_irq_disable();
- if (!lazy_irq_pending())
+ if (prep_irq_for_idle()) {
cede_processor();
+#ifdef CONFIG_TRACE_IRQFLAGS
+ /* Ensure that H_CEDE returns with IRQs on */
+ if (WARN_ON(!(mfmsr() & MSR_EE)))
+ __hard_irq_enable();
+#endif
+ }
}
static int dedicated_cede_loop(struct cpuidle_device *dev,
diff --git a/arch/sh/include/asm/io_noioport.h b/arch/sh/include/asm/io_noioport.h
index e136d28..4d48f14 100644
--- a/arch/sh/include/asm/io_noioport.h
+++ b/arch/sh/include/asm/io_noioport.h
@@ -19,9 +19,20 @@
return -1;
}
-#define outb(x, y) BUG()
-#define outw(x, y) BUG()
-#define outl(x, y) BUG()
+static inline void outb(unsigned char x, unsigned long port)
+{
+ BUG();
+}
+
+static inline void outw(unsigned short x, unsigned long port)
+{
+ BUG();
+}
+
+static inline void outl(unsigned int x, unsigned long port)
+{
+ BUG();
+}
#define inb_p(addr) inb(addr)
#define inw_p(addr) inw(addr)
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7720.c b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
index 8832c52..c4a0336 100644
--- a/arch/sh/kernel/cpu/sh3/serial-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
@@ -2,7 +2,7 @@
#include <linux/serial_core.h>
#include <linux/io.h>
#include <cpu/serial.h>
-#include <asm/gpio.h>
+#include <cpu/gpio.h>
static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag)
{
diff --git a/arch/tile/kernel/backtrace.c b/arch/tile/kernel/backtrace.c
index 9092ce8..f8b74ca 100644
--- a/arch/tile/kernel/backtrace.c
+++ b/arch/tile/kernel/backtrace.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
+#include <asm/byteorder.h>
#include <asm/backtrace.h>
#include <asm/tile-desc.h>
#include <arch/abi.h>
@@ -336,8 +337,12 @@
bytes_to_prefetch / sizeof(tile_bundle_bits);
}
- /* Decode the next bundle. */
- bundle.bits = prefetched_bundles[next_bundle++];
+ /*
+ * Decode the next bundle.
+ * TILE always stores instruction bundles in little-endian
+ * mode, even when the chip is running in big-endian mode.
+ */
+ bundle.bits = le64_to_cpu(prefetched_bundles[next_bundle++]);
bundle.num_insns =
parse_insn_tile(bundle.bits, pc, bundle.insns);
num_info_ops = bt_get_info_ops(&bundle, info_operands);
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 9b306e5..2c8d6a3 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -277,7 +277,7 @@
/* Don't leak any random bits. */
- memset(elfregs, 0, sizeof (elfregs));
+ memset(elfregs, 0, sizeof(*elfregs));
/* Note: PS.EXCM is not set while user task is running; its
* being set in regs->ps is for exception handling convenience.
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 0ed85ca..615996a 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -95,18 +95,6 @@
return_ACPI_STATUS(status);
}
- if (sleep_state != ACPI_STATE_S5) {
- /*
- * Disable BM arbitration. This feature is contained within an
- * optional register (PM2 Control), so ignore a BAD_ADDRESS
- * exception.
- */
- status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 1);
- if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
- return_ACPI_STATUS(status);
- }
- }
-
/*
* 1) Disable/Clear all GPEs
* 2) Enable all wakeup GPEs
@@ -364,16 +352,6 @@
[ACPI_EVENT_POWER_BUTTON].
status_register_id, ACPI_CLEAR_STATUS);
- /*
- * Enable BM arbitration. This feature is contained within an
- * optional register (PM2 Control), so ignore a BAD_ADDRESS
- * exception.
- */
- status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 0);
- if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
- return_ACPI_STATUS(status);
- }
-
acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WORKING);
return_ACPI_STATUS(status);
}
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index c4067d0..542f0c0 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -136,7 +136,7 @@
config GPIO_MSM_V1
tristate "Qualcomm MSM GPIO v1"
- depends on GPIOLIB && ARCH_MSM
+ depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
help
Say yes here to support the GPIO interface on ARM v6 based
Qualcomm MSM chips. Most of the pins on the MSM can be
diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c
index 9e9947c..1077754 100644
--- a/drivers/gpio/devres.c
+++ b/drivers/gpio/devres.c
@@ -98,6 +98,7 @@
return 0;
}
+EXPORT_SYMBOL(devm_gpio_request_one);
/**
* devm_gpio_free - free an interrupt
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index c337143..c89c4c1 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -398,10 +398,12 @@
writel(~0, port->base + GPIO_ISR);
if (mxc_gpio_hwtype == IMX21_GPIO) {
- /* setup one handler for all GPIO interrupts */
- if (pdev->id == 0)
- irq_set_chained_handler(port->irq,
- mx2_gpio_irq_handler);
+ /*
+ * Setup one handler for all GPIO interrupts. Actually setting
+ * the handler is needed only once, but doing it for every port
+ * is more robust and easier.
+ */
+ irq_set_chained_handler(port->irq, mx2_gpio_irq_handler);
} else {
/* setup one handler for each entry */
irq_set_chained_handler(port->irq, mx3_gpio_irq_handler);
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index c4ed172..4fbc208 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -174,12 +174,22 @@
if (bank->dbck_enable_mask && !bank->dbck_enabled) {
clk_enable(bank->dbck);
bank->dbck_enabled = true;
+
+ __raw_writel(bank->dbck_enable_mask,
+ bank->base + bank->regs->debounce_en);
}
}
static inline void _gpio_dbck_disable(struct gpio_bank *bank)
{
if (bank->dbck_enable_mask && bank->dbck_enabled) {
+ /*
+ * Disable debounce before cutting it's clock. If debounce is
+ * enabled but the clock is not, GPIO module seems to be unable
+ * to detect events and generate interrupts at least on OMAP3.
+ */
+ __raw_writel(0, bank->base + bank->regs->debounce_en);
+
clk_disable(bank->dbck);
bank->dbck_enabled = false;
}
@@ -1081,7 +1091,6 @@
bank->is_mpuio = pdata->is_mpuio;
bank->non_wakeup_gpios = pdata->non_wakeup_gpios;
bank->loses_context = pdata->loses_context;
- bank->get_context_loss_count = pdata->get_context_loss_count;
bank->regs = pdata->regs;
#ifdef CONFIG_OF_GPIO
bank->chip.of_node = of_node_get(node);
@@ -1135,6 +1144,9 @@
omap_gpio_chip_init(bank);
omap_gpio_show_rev(bank);
+ if (bank->loses_context)
+ bank->get_context_loss_count = pdata->get_context_loss_count;
+
pm_runtime_put(bank->dev);
list_add_tail(&bank->node, &omap_gpio_list);
diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c
index 38416be..6064fb3 100644
--- a/drivers/gpio/gpio-sta2x11.c
+++ b/drivers/gpio/gpio-sta2x11.c
@@ -383,8 +383,9 @@
}
spin_lock_init(&chip->lock);
gsta_gpio_setup(chip);
- for (i = 0; i < GSTA_NR_GPIO; i++)
- gsta_set_config(chip, i, gpio_pdata->pinconfig[i]);
+ if (gpio_pdata)
+ for (i = 0; i < GSTA_NR_GPIO; i++)
+ gsta_set_config(chip, i, gpio_pdata->pinconfig[i]);
/* 384 was used in previous code: be compatible for other drivers */
err = irq_alloc_descs(-1, 384, GSTA_NR_GPIO, NUMA_NO_NODE);
diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c
index c1ad288..11f29c8 100644
--- a/drivers/gpio/gpio-tps65910.c
+++ b/drivers/gpio/gpio-tps65910.c
@@ -149,6 +149,9 @@
tps65910_gpio->gpio_chip.set = tps65910_gpio_set;
tps65910_gpio->gpio_chip.get = tps65910_gpio_get;
tps65910_gpio->gpio_chip.dev = &pdev->dev;
+#ifdef CONFIG_OF_GPIO
+ tps65910_gpio->gpio_chip.of_node = tps65910->dev->of_node;
+#endif
if (pdata && pdata->gpio_base)
tps65910_gpio->gpio_chip.base = pdata->gpio_base;
else
diff --git a/drivers/gpio/gpio-wm8994.c b/drivers/gpio/gpio-wm8994.c
index 92ea535..aa61ad2 100644
--- a/drivers/gpio/gpio-wm8994.c
+++ b/drivers/gpio/gpio-wm8994.c
@@ -89,8 +89,11 @@
struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
struct wm8994 *wm8994 = wm8994_gpio->wm8994;
+ if (value)
+ value = WM8994_GPN_LVL;
+
return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
- WM8994_GPN_DIR, 0);
+ WM8994_GPN_DIR | WM8994_GPN_LVL, value);
}
static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c
index 61c9cf1..1201a15 100644
--- a/drivers/hwspinlock/hwspinlock_core.c
+++ b/drivers/hwspinlock/hwspinlock_core.c
@@ -345,7 +345,7 @@
spin_lock_init(&hwlock->lock);
hwlock->bank = bank;
- ret = hwspin_lock_register_single(hwlock, i);
+ ret = hwspin_lock_register_single(hwlock, base_id + i);
if (ret)
goto reg_failed;
}
@@ -354,7 +354,7 @@
reg_failed:
while (--i >= 0)
- hwspin_lock_unregister_single(i);
+ hwspin_lock_unregister_single(base_id + i);
return ret;
}
EXPORT_SYMBOL_GPL(hwspin_lock_register);
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a2e418c..6256263 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -83,6 +83,8 @@
static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
int amd_iommu_max_glx_val = -1;
+static struct dma_map_ops amd_iommu_dma_ops;
+
/*
* general struct to manage commands send to an IOMMU
*/
@@ -402,7 +404,7 @@
return;
de_fflush = debugfs_create_bool("fullflush", 0444, stats_dir,
- (u32 *)&amd_iommu_unmap_flush);
+ &amd_iommu_unmap_flush);
amd_iommu_stats_add(&compl_wait);
amd_iommu_stats_add(&cnt_map_single);
@@ -2267,6 +2269,13 @@
list_add_tail(&dma_domain->list, &iommu_pd_list);
spin_unlock_irqrestore(&iommu_pd_list_lock, flags);
+ dev_data = get_dev_data(dev);
+
+ if (!dev_data->passthrough)
+ dev->archdata.dma_ops = &amd_iommu_dma_ops;
+ else
+ dev->archdata.dma_ops = &nommu_dma_ops;
+
break;
case BUS_NOTIFY_DEL_DEVICE:
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 542024b..a33612f 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -129,7 +129,7 @@
to handle */
LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings
we find in ACPI */
-bool amd_iommu_unmap_flush; /* if true, flush on every unmap */
+u32 amd_iommu_unmap_flush; /* if true, flush on every unmap */
LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the
system */
@@ -1641,6 +1641,8 @@
amd_iommu_init_api();
+ x86_platform.iommu_shutdown = disable_iommus;
+
if (iommu_pass_through)
goto out;
@@ -1649,8 +1651,6 @@
else
printk(KERN_INFO "AMD-Vi: Lazy IO/TLB flushing enabled\n");
- x86_platform.iommu_shutdown = disable_iommus;
-
out:
return ret;
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 2435555..c1b1d48 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -652,7 +652,7 @@
* If true, the addresses will be flushed on unmap time, not when
* they are reused
*/
-extern bool amd_iommu_unmap_flush;
+extern u32 amd_iommu_unmap_flush;
/* Smallest number of PASIDs supported by any IOMMU in the system */
extern u32 amd_iommu_max_pasids;
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index ecd6790..3f3d09d5 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -550,13 +550,13 @@
return 0;
as->pte_count = devm_kzalloc(smmu->dev,
- sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_KERNEL);
+ sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_ATOMIC);
if (!as->pte_count) {
dev_err(smmu->dev,
"failed to allocate smmu_device PTE cunters\n");
return -ENOMEM;
}
- as->pdir_page = alloc_page(GFP_KERNEL | __GFP_DMA);
+ as->pdir_page = alloc_page(GFP_ATOMIC | __GFP_DMA);
if (!as->pdir_page) {
dev_err(smmu->dev,
"failed to allocate smmu_device page directory\n");
diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c
index 6c31e46..b9c6f17 100644
--- a/drivers/media/video/gspca/sn9c20x.c
+++ b/drivers/media/video/gspca/sn9c20x.c
@@ -2070,10 +2070,13 @@
set_gamma(gspca_dev, v4l2_ctrl_g_ctrl(sd->gamma));
set_redblue(gspca_dev, v4l2_ctrl_g_ctrl(sd->blue),
v4l2_ctrl_g_ctrl(sd->red));
- set_gain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
- set_exposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
- set_hvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
- v4l2_ctrl_g_ctrl(sd->vflip));
+ if (sd->gain)
+ set_gain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
+ if (sd->exposure)
+ set_exposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
+ if (sd->hflip)
+ set_hvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
+ v4l2_ctrl_g_ctrl(sd->vflip));
reg_w1(gspca_dev, 0x1007, 0x20);
reg_w1(gspca_dev, 0x1061, 0x03);
@@ -2176,7 +2179,7 @@
struct sd *sd = (struct sd *) gspca_dev;
int avg_lum;
- if (!v4l2_ctrl_g_ctrl(sd->autogain))
+ if (sd->autogain == NULL || !v4l2_ctrl_g_ctrl(sd->autogain))
return;
avg_lum = atomic_read(&sd->avg_lum);
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 41f9a25..637bde8 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -83,6 +83,7 @@
#define CSICR1_INV_DATA (1 << 3)
#define CSICR1_INV_PCLK (1 << 2)
#define CSICR1_REDGE (1 << 1)
+#define CSICR1_FMT_MASK (CSICR1_PACK_DIR | CSICR1_SWAP16_EN)
#define SHIFT_STATFF_LEVEL 22
#define SHIFT_RXFF_LEVEL 19
@@ -230,6 +231,7 @@
u32 src_pixel;
u32 ch1_pixel;
u32 irq_flags;
+ u32 csicr1;
};
/* prp resizing parameters */
@@ -330,6 +332,7 @@
.ch1_pixel = 0x2ca00565, /* RGB565 */
.irq_flags = PRP_INTR_RDERR | PRP_INTR_CH1WERR |
PRP_INTR_CH1FC | PRP_INTR_LBOVF,
+ .csicr1 = 0,
}
},
{
@@ -343,6 +346,21 @@
.irq_flags = PRP_INTR_RDERR | PRP_INTR_CH2WERR |
PRP_INTR_CH2FC | PRP_INTR_LBOVF |
PRP_INTR_CH2OVF,
+ .csicr1 = CSICR1_PACK_DIR,
+ }
+ },
+ {
+ .in_fmt = V4L2_MBUS_FMT_UYVY8_2X8,
+ .out_fmt = V4L2_PIX_FMT_YUV420,
+ .cfg = {
+ .channel = 2,
+ .in_fmt = PRP_CNTL_DATA_IN_YUV422,
+ .out_fmt = PRP_CNTL_CH2_OUT_YUV420,
+ .src_pixel = 0x22000888, /* YUV422 (YUYV) */
+ .irq_flags = PRP_INTR_RDERR | PRP_INTR_CH2WERR |
+ PRP_INTR_CH2FC | PRP_INTR_LBOVF |
+ PRP_INTR_CH2OVF,
+ .csicr1 = CSICR1_SWAP16_EN,
}
},
};
@@ -1015,14 +1033,14 @@
return ret;
}
+ csicr1 = (csicr1 & ~CSICR1_FMT_MASK) | pcdev->emma_prp->cfg.csicr1;
+
if (common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
csicr1 |= CSICR1_REDGE;
if (common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
csicr1 |= CSICR1_SOF_POL;
if (common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
csicr1 |= CSICR1_HSYNC_POL;
- if (pcdev->platform_flags & MX2_CAMERA_SWAP16)
- csicr1 |= CSICR1_SWAP16_EN;
if (pcdev->platform_flags & MX2_CAMERA_EXT_VSYNC)
csicr1 |= CSICR1_EXT_VSYNC;
if (pcdev->platform_flags & MX2_CAMERA_CCIR)
@@ -1033,8 +1051,6 @@
csicr1 |= CSICR1_GCLK_MODE;
if (pcdev->platform_flags & MX2_CAMERA_INV_DATA)
csicr1 |= CSICR1_INV_DATA;
- if (pcdev->platform_flags & MX2_CAMERA_PACK_DIR_MSB)
- csicr1 |= CSICR1_PACK_DIR;
pcdev->csicr1 = csicr1;
@@ -1109,7 +1125,8 @@
return 0;
}
- if (code == V4L2_MBUS_FMT_YUYV8_2X8) {
+ if (code == V4L2_MBUS_FMT_YUYV8_2X8 ||
+ code == V4L2_MBUS_FMT_UYVY8_2X8) {
formats++;
if (xlate) {
/*
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 7de1389..783fcd7 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -1147,7 +1147,7 @@
err = request_threaded_irq(pdev->irq,
NULL,
mei_interrupt_thread_handler,
- 0, mei_driver_name, dev);
+ IRQF_ONESHOT, mei_driver_name, dev);
else
err = request_threaded_irq(pdev->irq,
mei_interrupt_quick_handler,
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index 17bbacb..87b251a 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -452,9 +452,9 @@
if (msg->activate_gru_mq_desc_gpa !=
part_uv->activate_gru_mq_desc_gpa) {
- spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
+ spin_lock(&part_uv->flags_lock);
part_uv->flags &= ~XPC_P_CACHED_ACTIVATE_GRU_MQ_DESC_UV;
- spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags);
+ spin_unlock(&part_uv->flags_lock);
part_uv->activate_gru_mq_desc_gpa =
msg->activate_gru_mq_desc_gpa;
}
diff --git a/drivers/of/base.c b/drivers/of/base.c
index eada3f4..d9bfd49 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -511,22 +511,6 @@
}
EXPORT_SYMBOL(of_find_node_with_property);
-static const struct of_device_id *of_match_compat(const struct of_device_id *matches,
- const char *compat)
-{
- while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
- const char *cp = matches->compatible;
- int len = strlen(cp);
-
- if (len > 0 && of_compat_cmp(compat, cp, len) == 0)
- return matches;
-
- matches++;
- }
-
- return NULL;
-}
-
/**
* of_match_node - Tell if an device_node has a matching of_match structure
* @matches: array of of device match structures to search in
@@ -537,18 +521,9 @@
const struct of_device_id *of_match_node(const struct of_device_id *matches,
const struct device_node *node)
{
- struct property *prop;
- const char *cp;
-
if (!matches)
return NULL;
- of_property_for_each_string(node, "compatible", prop, cp) {
- const struct of_device_id *match = of_match_compat(matches, cp);
- if (match)
- return match;
- }
-
while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
int match = 1;
if (matches->name[0])
@@ -557,7 +532,10 @@
if (matches->type[0])
match &= node->type
&& !strcmp(matches->type, node->type);
- if (match && !matches->compatible[0])
+ if (matches->compatible[0])
+ match &= of_device_is_compatible(node,
+ matches->compatible);
+ if (match)
return matches;
matches++;
}
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 3132ea0..e44f8c2 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -317,10 +317,9 @@
for(; lookup->compatible != NULL; lookup++) {
if (!of_device_is_compatible(np, lookup->compatible))
continue;
- if (of_address_to_resource(np, 0, &res))
- continue;
- if (res.start != lookup->phys_addr)
- continue;
+ if (!of_address_to_resource(np, 0, &res))
+ if (res.start != lookup->phys_addr)
+ continue;
pr_debug("%s: devname=%s\n", np->full_name, lookup->name);
return lookup;
}
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index bf0cee6..099f46c 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -748,6 +748,18 @@
pci_pm_set_unknown_state(pci_dev);
+ /*
+ * Some BIOSes from ASUS have a bug: If a USB EHCI host controller's
+ * PCI COMMAND register isn't 0, the BIOS assumes that the controller
+ * hasn't been quiesced and tries to turn it off. If the controller
+ * is already in D3, this can hang or cause memory corruption.
+ *
+ * Since the value of the COMMAND register doesn't matter once the
+ * device has been suspended, we can safely set it to 0 here.
+ */
+ if (pci_dev->class == PCI_CLASS_SERIAL_USB_EHCI)
+ pci_write_config_word(pci_dev, PCI_COMMAND, 0);
+
return 0;
}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 77cb54a..447e834 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1744,11 +1744,6 @@
if (target_state == PCI_POWER_ERROR)
return -EIO;
- /* Some devices mustn't be in D3 during system sleep */
- if (target_state == PCI_D3hot &&
- (dev->dev_flags & PCI_DEV_FLAGS_NO_D3_DURING_SLEEP))
- return 0;
-
pci_enable_wake(dev, target_state, device_may_wakeup(&dev->dev));
error = pci_set_power_state(dev, target_state);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 194b243a..2a75216 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2929,32 +2929,6 @@
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
-/*
- * The Intel 6 Series/C200 Series chipset's EHCI controllers on many
- * ASUS motherboards will cause memory corruption or a system crash
- * if they are in D3 while the system is put into S3 sleep.
- */
-static void __devinit asus_ehci_no_d3(struct pci_dev *dev)
-{
- const char *sys_info;
- static const char good_Asus_board[] = "P8Z68-V";
-
- if (dev->dev_flags & PCI_DEV_FLAGS_NO_D3_DURING_SLEEP)
- return;
- if (dev->subsystem_vendor != PCI_VENDOR_ID_ASUSTEK)
- return;
- sys_info = dmi_get_system_info(DMI_BOARD_NAME);
- if (sys_info && memcmp(sys_info, good_Asus_board,
- sizeof(good_Asus_board) - 1) == 0)
- return;
-
- dev_info(&dev->dev, "broken D3 during system sleep on ASUS\n");
- dev->dev_flags |= PCI_DEV_FLAGS_NO_D3_DURING_SLEEP;
- device_set_wakeup_capable(&dev->dev, false);
-}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1c26, asus_ehci_no_d3);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1c2d, asus_ehci_no_d3);
-
static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
struct pci_fixup *end)
{
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 09a737c..8b4b382 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2519,9 +2519,12 @@
{
struct regulator_dev *rdev = regulator->rdev;
struct regulator *consumer;
- int ret, output_uV, input_uV, total_uA_load = 0;
+ int ret, output_uV, input_uV = 0, total_uA_load = 0;
unsigned int mode;
+ if (rdev->supply)
+ input_uV = regulator_get_voltage(rdev->supply);
+
mutex_lock(&rdev->mutex);
/*
@@ -2554,10 +2557,7 @@
goto out;
}
- /* get input voltage */
- input_uV = 0;
- if (rdev->supply)
- input_uV = regulator_get_voltage(rdev->supply);
+ /* No supply? Use constraint voltage */
if (input_uV <= 0)
input_uV = rdev->constraints->input_uV;
if (input_uV <= 0) {
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 24d880e..f8d818a 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -4,9 +4,11 @@
config REMOTEPROC
tristate
depends on EXPERIMENTAL
+ select FW_CONFIG
config OMAP_REMOTEPROC
tristate "OMAP remoteproc support"
+ depends on EXPERIMENTAL
depends on ARCH_OMAP4
depends on OMAP_IOMMU
select REMOTEPROC
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 75506ec..39d3aa4 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -188,6 +188,26 @@
rpdev->id.name);
}
+/**
+ * __ept_release() - deallocate an rpmsg endpoint
+ * @kref: the ept's reference count
+ *
+ * This function deallocates an ept, and is invoked when its @kref refcount
+ * drops to zero.
+ *
+ * Never invoke this function directly!
+ */
+static void __ept_release(struct kref *kref)
+{
+ struct rpmsg_endpoint *ept = container_of(kref, struct rpmsg_endpoint,
+ refcount);
+ /*
+ * At this point no one holds a reference to ept anymore,
+ * so we can directly free it
+ */
+ kfree(ept);
+}
+
/* for more info, see below documentation of rpmsg_create_ept() */
static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp,
struct rpmsg_channel *rpdev, rpmsg_rx_cb_t cb,
@@ -206,6 +226,9 @@
return NULL;
}
+ kref_init(&ept->refcount);
+ mutex_init(&ept->cb_lock);
+
ept->rpdev = rpdev;
ept->cb = cb;
ept->priv = priv;
@@ -238,7 +261,7 @@
idr_remove(&vrp->endpoints, request);
free_ept:
mutex_unlock(&vrp->endpoints_lock);
- kfree(ept);
+ kref_put(&ept->refcount, __ept_release);
return NULL;
}
@@ -302,11 +325,17 @@
static void
__rpmsg_destroy_ept(struct virtproc_info *vrp, struct rpmsg_endpoint *ept)
{
+ /* make sure new inbound messages can't find this ept anymore */
mutex_lock(&vrp->endpoints_lock);
idr_remove(&vrp->endpoints, ept->addr);
mutex_unlock(&vrp->endpoints_lock);
- kfree(ept);
+ /* make sure in-flight inbound messages won't invoke cb anymore */
+ mutex_lock(&ept->cb_lock);
+ ept->cb = NULL;
+ mutex_unlock(&ept->cb_lock);
+
+ kref_put(&ept->refcount, __ept_release);
}
/**
@@ -790,12 +819,28 @@
/* use the dst addr to fetch the callback of the appropriate user */
mutex_lock(&vrp->endpoints_lock);
+
ept = idr_find(&vrp->endpoints, msg->dst);
+
+ /* let's make sure no one deallocates ept while we use it */
+ if (ept)
+ kref_get(&ept->refcount);
+
mutex_unlock(&vrp->endpoints_lock);
- if (ept && ept->cb)
- ept->cb(ept->rpdev, msg->data, msg->len, ept->priv, msg->src);
- else
+ if (ept) {
+ /* make sure ept->cb doesn't go away while we use it */
+ mutex_lock(&ept->cb_lock);
+
+ if (ept->cb)
+ ept->cb(ept->rpdev, msg->data, msg->len, ept->priv,
+ msg->src);
+
+ mutex_unlock(&ept->cb_lock);
+
+ /* farewell, ept, we don't need you anymore */
+ kref_put(&ept->refcount, __ept_release);
+ } else
dev_warn(dev, "msg received with no recepient\n");
/* publish the real size of the buffer */
diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c
index 4bcf9ca..370889d 100644
--- a/drivers/rtc/rtc-ab8500.c
+++ b/drivers/rtc/rtc-ab8500.c
@@ -17,6 +17,7 @@
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/delay.h>
+#include <linux/of.h>
#define AB8500_RTC_SOFF_STAT_REG 0x00
#define AB8500_RTC_CC_CONF_REG 0x01
@@ -422,7 +423,7 @@
}
err = request_threaded_irq(irq, NULL, rtc_alarm_handler,
- IRQF_NO_SUSPEND, "ab8500-rtc", rtc);
+ IRQF_NO_SUSPEND | IRQF_ONESHOT, "ab8500-rtc", rtc);
if (err < 0) {
rtc_device_unregister(rtc);
return err;
@@ -430,7 +431,6 @@
platform_set_drvdata(pdev, rtc);
-
err = ab8500_sysfs_rtc_register(&pdev->dev);
if (err) {
dev_err(&pdev->dev, "sysfs RTC failed to register\n");
@@ -454,10 +454,16 @@
return 0;
}
+static const struct of_device_id ab8500_rtc_match[] = {
+ { .compatible = "stericsson,ab8500-rtc", },
+ {}
+};
+
static struct platform_driver ab8500_rtc_driver = {
.driver = {
.name = "ab8500-rtc",
.owner = THIS_MODULE,
+ .of_match_table = ab8500_rtc_match,
},
.probe = ab8500_rtc_probe,
.remove = __devexit_p(ab8500_rtc_remove),
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 5e1d64e..e3e50d6 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -202,10 +202,11 @@
struct platform_device *pdev = dev_id;
struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
void __iomem *ioaddr = pdata->ioaddr;
+ unsigned long flags;
u32 status;
u32 events = 0;
- spin_lock_irq(&pdata->rtc->irq_lock);
+ spin_lock_irqsave(&pdata->rtc->irq_lock, flags);
status = readw(ioaddr + RTC_RTCISR) & readw(ioaddr + RTC_RTCIENR);
/* clear interrupt sources */
writew(status, ioaddr + RTC_RTCISR);
@@ -224,7 +225,7 @@
events |= (RTC_PF | RTC_IRQF);
rtc_update_irq(pdata->rtc, 1, events);
- spin_unlock_irq(&pdata->rtc->irq_lock);
+ spin_unlock_irqrestore(&pdata->rtc->irq_lock, flags);
return IRQ_HANDLED;
}
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index 1f76320..e278547 100644
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -458,12 +458,12 @@
clk_disable(config->clk);
clk_put(config->clk);
iounmap(config->ioaddr);
- kfree(config);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res)
release_mem_region(res->start, resource_size(res));
platform_set_drvdata(pdev, NULL);
rtc_device_unregister(config->rtc);
+ kfree(config);
return 0;
}
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 258abea..c5d06fe 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -510,7 +510,7 @@
}
ret = request_threaded_irq(irq, NULL, twl_rtc_interrupt,
- IRQF_TRIGGER_RISING,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dev_name(&rtc->dev), rtc);
if (ret < 0) {
dev_err(&pdev->dev, "IRQ is not free.\n");
diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c
index 532d212..393e7ce 100644
--- a/drivers/scsi/aic94xx/aic94xx_task.c
+++ b/drivers/scsi/aic94xx/aic94xx_task.c
@@ -201,7 +201,7 @@
if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
resp->frame_len = le16_to_cpu(*(__le16 *)(r+6));
- memcpy(&resp->ending_fis[0], r+16, 24);
+ memcpy(&resp->ending_fis[0], r+16, ATA_RESP_FIS_SIZE);
ts->buf_valid_size = sizeof(*resp);
}
}
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index 0c53c28..7e77cf6 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -350,6 +350,7 @@
struct pci_dev *pcidev;
struct net_device *netdev;
void __iomem *regview;
+ resource_size_t reg_base;
u32 age;
unsigned long cnic_dev_type;
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index ece47e5..86a12b4 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -2724,7 +2724,6 @@
goto arm_cq;
}
- reg_base = ep->hba->netdev->base_addr;
if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) &&
(ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) {
config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2);
@@ -2740,7 +2739,7 @@
/* 5709 device in normal node and 5706/5708 devices */
reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num);
- ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off,
+ ep->qp.ctx_base = ioremap_nocache(ep->hba->reg_base + reg_off,
MB_KERNEL_CTX_SIZE);
if (!ep->qp.ctx_base)
return -ENOMEM;
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index f8d516b..621538b 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -811,13 +811,13 @@
bnx2i_identify_device(hba);
bnx2i_setup_host_queue_size(hba, shost);
+ hba->reg_base = pci_resource_start(hba->pcidev, 0);
if (test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) {
- hba->regview = ioremap_nocache(hba->netdev->base_addr,
- BNX2_MQ_CONFIG2);
+ hba->regview = pci_iomap(hba->pcidev, 0, BNX2_MQ_CONFIG2);
if (!hba->regview)
goto ioreg_map_err;
} else if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) {
- hba->regview = ioremap_nocache(hba->netdev->base_addr, 4096);
+ hba->regview = pci_iomap(hba->pcidev, 0, 4096);
if (!hba->regview)
goto ioreg_map_err;
}
@@ -884,7 +884,7 @@
bnx2i_free_mp_bdt(hba);
mp_bdt_mem_err:
if (hba->regview) {
- iounmap(hba->regview);
+ pci_iounmap(hba->pcidev, hba->regview);
hba->regview = NULL;
}
ioreg_map_err:
@@ -910,7 +910,7 @@
pci_dev_put(hba->pcidev);
if (hba->regview) {
- iounmap(hba->regview);
+ pci_iounmap(hba->pcidev, hba->regview);
hba->regview = NULL;
}
bnx2i_free_mp_bdt(hba);
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 441d88a..d109cc3 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -139,12 +139,12 @@
if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD ||
((stat->stat == SAM_STAT_CHECK_CONDITION &&
dev->sata_dev.command_set == ATAPI_COMMAND_SET))) {
- ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf);
+ memcpy(dev->sata_dev.fis, resp->ending_fis, ATA_RESP_FIS_SIZE);
if (!link->sactive) {
- qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command);
+ qc->err_mask |= ac_err_mask(dev->sata_dev.fis[2]);
} else {
- link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.tf.command);
+ link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.fis[2]);
if (unlikely(link->eh_info.err_mask))
qc->flags |= ATA_QCFLAG_FAILED;
}
@@ -161,8 +161,8 @@
qc->flags |= ATA_QCFLAG_FAILED;
}
- dev->sata_dev.tf.feature = 0x04; /* status err */
- dev->sata_dev.tf.command = ATA_ERR;
+ dev->sata_dev.fis[3] = 0x04; /* status err */
+ dev->sata_dev.fis[2] = ATA_ERR;
}
}
@@ -269,7 +269,7 @@
{
struct domain_device *dev = qc->ap->private_data;
- memcpy(&qc->result_tf, &dev->sata_dev.tf, sizeof(qc->result_tf));
+ ata_tf_from_fis(dev->sata_dev.fis, &qc->result_tf);
return true;
}
diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c
index ced26c8..0d2ea0c 100644
--- a/drivers/tty/hvc/hvc_opal.c
+++ b/drivers/tty/hvc/hvc_opal.c
@@ -401,7 +401,7 @@
}
#ifdef CONFIG_PPC_EARLY_DEBUG_OPAL_RAW
-void __init udbg_init_debug_opal(void)
+void __init udbg_init_debug_opal_raw(void)
{
u32 index = CONFIG_PPC_EARLY_DEBUG_OPAL_VTERMNO;
hvc_opal_privs[index] = &hvc_opal_boot_priv;
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 8fd398d..ee46927 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -500,6 +500,8 @@
goto retry;
}
if (!desc->reslength) { /* zero length read */
+ dev_dbg(&desc->intf->dev, "%s: zero length - clearing WDM_READ\n", __func__);
+ clear_bit(WDM_READ, &desc->flags);
spin_unlock_irq(&desc->iuspin);
goto retry;
}
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 25a7422..8fb4849 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2324,12 +2324,16 @@
static int hub_port_reset(struct usb_hub *hub, int port1,
struct usb_device *udev, unsigned int delay, bool warm);
-/* Is a USB 3.0 port in the Inactive state? */
-static bool hub_port_inactive(struct usb_hub *hub, u16 portstatus)
+/* Is a USB 3.0 port in the Inactive or Complinance Mode state?
+ * Port worm reset is required to recover
+ */
+static bool hub_port_warm_reset_required(struct usb_hub *hub, u16 portstatus)
{
return hub_is_superspeed(hub->hdev) &&
- (portstatus & USB_PORT_STAT_LINK_STATE) ==
- USB_SS_PORT_LS_SS_INACTIVE;
+ (((portstatus & USB_PORT_STAT_LINK_STATE) ==
+ USB_SS_PORT_LS_SS_INACTIVE) ||
+ ((portstatus & USB_PORT_STAT_LINK_STATE) ==
+ USB_SS_PORT_LS_COMP_MOD)) ;
}
static int hub_port_wait_reset(struct usb_hub *hub, int port1,
@@ -2365,7 +2369,7 @@
*
* See https://bugzilla.kernel.org/show_bug.cgi?id=41752
*/
- if (hub_port_inactive(hub, portstatus)) {
+ if (hub_port_warm_reset_required(hub, portstatus)) {
int ret;
if ((portchange & USB_PORT_STAT_C_CONNECTION))
@@ -4408,9 +4412,7 @@
/* Warm reset a USB3 protocol port if it's in
* SS.Inactive state.
*/
- if (hub_is_superspeed(hub->hdev) &&
- (portstatus & USB_PORT_STAT_LINK_STATE)
- == USB_SS_PORT_LS_SS_INACTIVE) {
+ if (hub_port_warm_reset_required(hub, portstatus)) {
dev_dbg(hub_dev, "warm reset port %d\n", i);
hub_port_reset(hub, i, NULL,
HUB_BH_RESET_TIME, true);
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 2732ef6..7b01094 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -462,6 +462,42 @@
}
}
+/* Updates Link Status for super Speed port */
+static void xhci_hub_report_link_state(u32 *status, u32 status_reg)
+{
+ u32 pls = status_reg & PORT_PLS_MASK;
+
+ /* resume state is a xHCI internal state.
+ * Do not report it to usb core.
+ */
+ if (pls == XDEV_RESUME)
+ return;
+
+ /* When the CAS bit is set then warm reset
+ * should be performed on port
+ */
+ if (status_reg & PORT_CAS) {
+ /* The CAS bit can be set while the port is
+ * in any link state.
+ * Only roothubs have CAS bit, so we
+ * pretend to be in compliance mode
+ * unless we're already in compliance
+ * or the inactive state.
+ */
+ if (pls != USB_SS_PORT_LS_COMP_MOD &&
+ pls != USB_SS_PORT_LS_SS_INACTIVE) {
+ pls = USB_SS_PORT_LS_COMP_MOD;
+ }
+ /* Return also connection bit -
+ * hub state machine resets port
+ * when this bit is set.
+ */
+ pls |= USB_PORT_STAT_CONNECTION;
+ }
+ /* update status field */
+ *status |= pls;
+}
+
int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
u16 wIndex, char *buf, u16 wLength)
{
@@ -606,13 +642,9 @@
else
status |= USB_PORT_STAT_POWER;
}
- /* Port Link State */
+ /* Update Port Link State for super speed ports*/
if (hcd->speed == HCD_USB3) {
- /* resume state is a xHCI internal state.
- * Do not report it to usb core.
- */
- if ((temp & PORT_PLS_MASK) != XDEV_RESUME)
- status |= (temp & PORT_PLS_MASK);
+ xhci_hub_report_link_state(&status, temp);
}
if (bus_state->port_c_suspend & (1 << wIndex))
status |= 1 << USB_PORT_FEAT_C_SUSPEND;
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 23b4aef..8275645 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -885,6 +885,17 @@
num_trbs_free_temp = ep_ring->num_trbs_free;
dequeue_temp = ep_ring->dequeue;
+ /* If we get two back-to-back stalls, and the first stalled transfer
+ * ends just before a link TRB, the dequeue pointer will be left on
+ * the link TRB by the code in the while loop. So we have to update
+ * the dequeue pointer one segment further, or we'll jump off
+ * the segment into la-la-land.
+ */
+ if (last_trb(xhci, ep_ring, ep_ring->deq_seg, ep_ring->dequeue)) {
+ ep_ring->deq_seg = ep_ring->deq_seg->next;
+ ep_ring->dequeue = ep_ring->deq_seg->trbs;
+ }
+
while (ep_ring->dequeue != dev->eps[ep_index].queued_deq_ptr) {
/* We have more usable TRBs */
ep_ring->num_trbs_free++;
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index de3d6e3..55c0785 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -341,7 +341,11 @@
#define PORT_PLC (1 << 22)
/* port configure error change - port failed to configure its link partner */
#define PORT_CEC (1 << 23)
-/* bit 24 reserved */
+/* Cold Attach Status - xHC can set this bit to report device attached during
+ * Sx state. Warm port reset should be perfomed to clear this bit and move port
+ * to connected state.
+ */
+#define PORT_CAS (1 << 24)
/* wake on connect (enable) */
#define PORT_WKCONN_E (1 << 25)
/* wake on disconnect (enable) */
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 81423f7..d47eb06 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -222,14 +222,6 @@
metro_priv->throttled = 0;
spin_unlock_irqrestore(&metro_priv->lock, flags);
- /*
- * Force low_latency on so that our tty_push actually forces the data
- * through, otherwise it is scheduled, and with high data rates (like
- * with OHCI) data can get lost.
- */
- if (tty)
- tty->low_latency = 1;
-
/* Clear the urb pipe. */
usb_clear_halt(serial->dev, port->interrupt_in_urb->pipe);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index adf8ce7..417ab1b 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -497,6 +497,15 @@
/* MediaTek products */
#define MEDIATEK_VENDOR_ID 0x0e8d
+#define MEDIATEK_PRODUCT_DC_1COM 0x00a0
+#define MEDIATEK_PRODUCT_DC_4COM 0x00a5
+#define MEDIATEK_PRODUCT_DC_5COM 0x00a4
+#define MEDIATEK_PRODUCT_7208_1COM 0x7101
+#define MEDIATEK_PRODUCT_7208_2COM 0x7102
+#define MEDIATEK_PRODUCT_FP_1COM 0x0003
+#define MEDIATEK_PRODUCT_FP_2COM 0x0023
+#define MEDIATEK_PRODUCT_FPDC_1COM 0x0043
+#define MEDIATEK_PRODUCT_FPDC_2COM 0x0033
/* Cellient products */
#define CELLIENT_VENDOR_ID 0x2692
@@ -554,6 +563,10 @@
.reserved = BIT(1),
};
+static const struct option_blacklist_info net_intf2_blacklist = {
+ .reserved = BIT(2),
+};
+
static const struct option_blacklist_info net_intf3_blacklist = {
.reserved = BIT(3),
};
@@ -1099,6 +1112,8 @@
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1298, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1299, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1300, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1402, 0xff, 0xff, 0xff),
+ .driver_info = (kernel_ulong_t)&net_intf2_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff,
0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_k3765_z_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) },
@@ -1240,6 +1255,17 @@
{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a1, 0xff, 0x02, 0x01) },
{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x00, 0x00) },
{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x02, 0x01) }, /* MediaTek MT6276M modem & app port */
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_1COM, 0x0a, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_5COM, 0xff, 0x02, 0x01) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_5COM, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM, 0xff, 0x02, 0x01) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7208_1COM, 0x02, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7208_2COM, 0x02, 0x02, 0x01) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_1COM, 0x0a, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_2COM, 0x0a, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_1COM, 0x0a, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_2COM, 0x0a, 0x00, 0x00) },
{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
{ } /* Terminating entry */
};
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 5066eee..58bd9c2 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -32,6 +32,7 @@
#include <linux/io.h>
#include <linux/device.h>
#include <linux/regulator/consumer.h>
+#include <linux/suspend.h>
#include <video/omapdss.h>
@@ -201,6 +202,28 @@
#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
/* PLATFORM DEVICE */
+static int omap_dss_pm_notif(struct notifier_block *b, unsigned long v, void *d)
+{
+ DSSDBG("pm notif %lu\n", v);
+
+ switch (v) {
+ case PM_SUSPEND_PREPARE:
+ DSSDBG("suspending displays\n");
+ return dss_suspend_all_devices();
+
+ case PM_POST_SUSPEND:
+ DSSDBG("resuming displays\n");
+ return dss_resume_all_devices();
+
+ default:
+ return 0;
+ }
+}
+
+static struct notifier_block omap_dss_pm_notif_block = {
+ .notifier_call = omap_dss_pm_notif,
+};
+
static int __init omap_dss_probe(struct platform_device *pdev)
{
struct omap_dss_board_info *pdata = pdev->dev.platform_data;
@@ -224,6 +247,8 @@
else if (pdata->default_device)
core.default_display_name = pdata->default_device->name;
+ register_pm_notifier(&omap_dss_pm_notif_block);
+
return 0;
err_debugfs:
@@ -233,6 +258,8 @@
static int omap_dss_remove(struct platform_device *pdev)
{
+ unregister_pm_notifier(&omap_dss_pm_notif_block);
+
dss_uninitialize_debugfs();
dss_uninit_overlays(pdev);
@@ -247,25 +274,9 @@
dss_disable_all_devices();
}
-static int omap_dss_suspend(struct platform_device *pdev, pm_message_t state)
-{
- DSSDBG("suspend %d\n", state.event);
-
- return dss_suspend_all_devices();
-}
-
-static int omap_dss_resume(struct platform_device *pdev)
-{
- DSSDBG("resume\n");
-
- return dss_resume_all_devices();
-}
-
static struct platform_driver omap_dss_driver = {
.remove = omap_dss_remove,
.shutdown = omap_dss_shutdown,
- .suspend = omap_dss_suspend,
- .resume = omap_dss_resume,
.driver = {
.name = "omapdss",
.owner = THIS_MODULE,
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 4749ac3..397d4ee 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -384,7 +384,7 @@
DSSDBG("dispc_runtime_put\n");
r = pm_runtime_put_sync(&dispc.pdev->dev);
- WARN_ON(r < 0);
+ WARN_ON(r < 0 && r != -ENOSYS);
}
static inline bool dispc_mgr_is_lcd(enum omap_channel channel)
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index ca8382d..14ce8cc 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1075,7 +1075,7 @@
DSSDBG("dsi_runtime_put\n");
r = pm_runtime_put_sync(&dsi->pdev->dev);
- WARN_ON(r < 0);
+ WARN_ON(r < 0 && r != -ENOSYS);
}
/* source clock for DSI PLL. this could also be PCLKFREE */
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 7706323..d2b5719 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -731,7 +731,7 @@
DSSDBG("dss_runtime_put\n");
r = pm_runtime_put_sync(&dss.pdev->dev);
- WARN_ON(r < 0 && r != -EBUSY);
+ WARN_ON(r < 0 && r != -ENOSYS && r != -EBUSY);
}
/* DEBUGFS */
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 8195c71..26a2430 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -138,7 +138,7 @@
DSSDBG("hdmi_runtime_put\n");
r = pm_runtime_put_sync(&hdmi.pdev->dev);
- WARN_ON(r < 0);
+ WARN_ON(r < 0 && r != -ENOSYS);
}
static int __init hdmi_init_display(struct omap_dss_device *dssdev)
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 3d8c206..7985fa1 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -141,7 +141,7 @@
DSSDBG("rfbi_runtime_put\n");
r = pm_runtime_put_sync(&rfbi.pdev->dev);
- WARN_ON(r < 0);
+ WARN_ON(r < 0 && r != -ENOSYS);
}
void rfbi_bus_lock(void)
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 2b89739..3907c8b 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -402,7 +402,7 @@
DSSDBG("venc_runtime_put\n");
r = pm_runtime_put_sync(&venc.pdev->dev);
- WARN_ON(r < 0);
+ WARN_ON(r < 0 && r != -ENOSYS);
}
static const struct venc_config *venc_timings_to_config(
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index bfbc15c..0908e60 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -47,7 +47,7 @@
struct task_struct *thread;
/* Waiting for host to ack the pages we released. */
- struct completion acked;
+ wait_queue_head_t acked;
/* Number of balloon pages we've told the Host we're not using. */
unsigned int num_pages;
@@ -89,29 +89,25 @@
static void balloon_ack(struct virtqueue *vq)
{
- struct virtio_balloon *vb;
- unsigned int len;
+ struct virtio_balloon *vb = vq->vdev->priv;
- vb = virtqueue_get_buf(vq, &len);
- if (vb)
- complete(&vb->acked);
+ wake_up(&vb->acked);
}
static void tell_host(struct virtio_balloon *vb, struct virtqueue *vq)
{
struct scatterlist sg;
+ unsigned int len;
sg_init_one(&sg, vb->pfns, sizeof(vb->pfns[0]) * vb->num_pfns);
- init_completion(&vb->acked);
-
/* We should always be able to add one buffer to an empty queue. */
if (virtqueue_add_buf(vq, &sg, 1, 0, vb, GFP_KERNEL) < 0)
BUG();
virtqueue_kick(vq);
/* When host has read buffer, this completes via balloon_ack */
- wait_for_completion(&vb->acked);
+ wait_event(vb->acked, virtqueue_get_buf(vq, &len));
}
static void set_page_pfns(u32 pfns[], struct page *page)
@@ -231,12 +227,8 @@
*/
static void stats_request(struct virtqueue *vq)
{
- struct virtio_balloon *vb;
- unsigned int len;
+ struct virtio_balloon *vb = vq->vdev->priv;
- vb = virtqueue_get_buf(vq, &len);
- if (!vb)
- return;
vb->need_stats_update = 1;
wake_up(&vb->config_change);
}
@@ -245,11 +237,14 @@
{
struct virtqueue *vq;
struct scatterlist sg;
+ unsigned int len;
vb->need_stats_update = 0;
update_balloon_stats(vb);
vq = vb->stats_vq;
+ if (!virtqueue_get_buf(vq, &len))
+ return;
sg_init_one(&sg, vb->stats, sizeof(vb->stats));
if (virtqueue_add_buf(vq, &sg, 1, 0, vb, GFP_KERNEL) < 0)
BUG();
@@ -358,6 +353,7 @@
INIT_LIST_HEAD(&vb->pages);
vb->num_pages = 0;
init_waitqueue_head(&vb->config_change);
+ init_waitqueue_head(&vb->acked);
vb->vdev = vdev;
vb->need_stats_update = 0;
diff --git a/fs/buffer.c b/fs/buffer.c
index 838a9cf..c7062c8 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1036,6 +1036,9 @@
static struct buffer_head *
__getblk_slow(struct block_device *bdev, sector_t block, int size)
{
+ int ret;
+ struct buffer_head *bh;
+
/* Size must be multiple of hard sectorsize */
if (unlikely(size & (bdev_logical_block_size(bdev)-1) ||
(size < 512 || size > PAGE_SIZE))) {
@@ -1048,20 +1051,21 @@
return NULL;
}
- for (;;) {
- struct buffer_head * bh;
- int ret;
+retry:
+ bh = __find_get_block(bdev, block, size);
+ if (bh)
+ return bh;
+ ret = grow_buffers(bdev, block, size);
+ if (ret == 0) {
+ free_more_memory();
+ goto retry;
+ } else if (ret > 0) {
bh = __find_get_block(bdev, block, size);
if (bh)
return bh;
-
- ret = grow_buffers(bdev, block, size);
- if (ret < 0)
- return NULL;
- if (ret == 0)
- free_more_memory();
}
+ return NULL;
}
/*
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index a3d81eb..0038b32 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -738,22 +738,21 @@
fat_encode_fh(struct inode *inode, __u32 *fh, int *lenp, struct inode *parent)
{
int len = *lenp;
- u32 ipos_h, ipos_m, ipos_l;
+ struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
+ loff_t i_pos;
if (len < 5) {
*lenp = 5;
return 255; /* no room */
}
- ipos_h = MSDOS_I(inode)->i_pos >> 8;
- ipos_m = (MSDOS_I(inode)->i_pos & 0xf0) << 24;
- ipos_l = (MSDOS_I(inode)->i_pos & 0x0f) << 28;
+ i_pos = fat_i_pos_read(sbi, inode);
*lenp = 5;
fh[0] = inode->i_ino;
fh[1] = inode->i_generation;
- fh[2] = ipos_h;
- fh[3] = ipos_m | MSDOS_I(inode)->i_logstart;
- fh[4] = ipos_l;
+ fh[2] = i_pos >> 8;
+ fh[3] = ((i_pos & 0xf0) << 24) | MSDOS_I(inode)->i_logstart;
+ fh[4] = (i_pos & 0x0f) << 28;
if (parent)
fh[4] |= MSDOS_I(parent)->i_logstart;
return 3;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 98513c8..7602783 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1950,7 +1950,7 @@
if (ret < 0)
mlog_errno(ret);
- if (file->f_flags & O_SYNC)
+ if (file && (file->f_flags & O_SYNC))
handle->h_sync = 1;
ocfs2_commit_trans(osb, handle);
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index fbb0b47..d5378d0 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -110,6 +110,7 @@
/* prevent the page from being discarded on memory pressure */
SetPageDirty(page);
+ SetPageUptodate(page);
unlock_page(page);
put_page(page);
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 324fe08..6d6795d 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -91,6 +91,11 @@
unsigned long size,
unsigned long align,
unsigned long goal);
+void *___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
+ unsigned long size,
+ unsigned long align,
+ unsigned long goal,
+ unsigned long limit);
extern void *__alloc_bootmem_low(unsigned long size,
unsigned long align,
unsigned long goal);
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index f07fc2d..2e31e8b 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -22,8 +22,8 @@
/* Gpio pin is open source */
#define GPIOF_OPEN_SOURCE (1 << 3)
-#define GPIOF_EXPORT (1 << 2)
-#define GPIOF_EXPORT_CHANGEABLE (1 << 3)
+#define GPIOF_EXPORT (1 << 4)
+#define GPIOF_EXPORT_CHANGEABLE (1 << 5)
#define GPIOF_EXPORT_DIR_FIXED (GPIOF_EXPORT)
#define GPIOF_EXPORT_DIR_CHANGEABLE (GPIOF_EXPORT | GPIOF_EXPORT_CHANGEABLE)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index a6bb102..19dc455 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -50,9 +50,7 @@
phys_addr_t size, phys_addr_t align, int nid);
phys_addr_t memblock_find_in_range(phys_addr_t start, phys_addr_t end,
phys_addr_t size, phys_addr_t align);
-int memblock_free_reserved_regions(void);
-int memblock_reserve_reserved_regions(void);
-
+phys_addr_t get_allocated_memblock_reserved_regions_info(phys_addr_t *addr);
void memblock_allow_resize(void);
int memblock_add_node(phys_addr_t base, phys_addr_t size, int nid);
int memblock_add(phys_addr_t base, phys_addr_t size);
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 2427706..68c569f 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -694,7 +694,7 @@
range, including holes */
int node_id;
wait_queue_head_t kswapd_wait;
- struct task_struct *kswapd;
+ struct task_struct *kswapd; /* Protected by lock_memory_hotplug() */
int kswapd_max_order;
enum zone_type classzone_idx;
} pg_data_t;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index fefb4e1..d8c379d 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -176,8 +176,6 @@
PCI_DEV_FLAGS_NO_D3 = (__force pci_dev_flags_t) 2,
/* Provide indication device is assigned by a Virtual Machine Manager */
PCI_DEV_FLAGS_ASSIGNED = (__force pci_dev_flags_t) 4,
- /* Device causes system crash if in D3 during S3 sleep */
- PCI_DEV_FLAGS_NO_D3_DURING_SLEEP = (__force pci_dev_flags_t) 8,
};
enum pci_irq_reroute_variant {
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index a8e50e4..82a6739 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -38,6 +38,8 @@
#include <linux/types.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
+#include <linux/kref.h>
+#include <linux/mutex.h>
/* The feature bitmap for virtio rpmsg */
#define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */
@@ -120,7 +122,9 @@
/**
* struct rpmsg_endpoint - binds a local rpmsg address to its user
* @rpdev: rpmsg channel device
+ * @refcount: when this drops to zero, the ept is deallocated
* @cb: rx callback handler
+ * @cb_lock: must be taken before accessing/changing @cb
* @addr: local rpmsg address
* @priv: private data for the driver's use
*
@@ -140,7 +144,9 @@
*/
struct rpmsg_endpoint {
struct rpmsg_channel *rpdev;
+ struct kref refcount;
rpmsg_rx_cb_t cb;
+ struct mutex cb_lock;
u32 addr;
void *priv;
};
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index f4f1c96..10ce74f 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -163,6 +163,8 @@
ATAPI_COMMAND_SET = 1,
};
+#define ATA_RESP_FIS_SIZE 24
+
struct sata_device {
enum ata_command_set command_set;
struct smp_resp rps_resp; /* report_phy_sata_resp */
@@ -171,7 +173,7 @@
struct ata_port *ap;
struct ata_host ata_host;
- struct ata_taskfile tf;
+ u8 fis[ATA_RESP_FIS_SIZE];
};
enum {
@@ -537,7 +539,7 @@
*/
struct ata_task_resp {
u16 frame_len;
- u8 ending_fis[24]; /* dev to host or data-in */
+ u8 ending_fis[ATA_RESP_FIS_SIZE]; /* dev to host or data-in */
};
#define SAS_STATUS_BUF_SIZE 96
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 1e11985..ac06cc5 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -134,10 +134,16 @@
static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
{
+ struct scsi_driver **sdp;
+
if (!cmd->request->rq_disk)
return NULL;
- return *(struct scsi_driver **)cmd->request->rq_disk->private_data;
+ sdp = (struct scsi_driver **)cmd->request->rq_disk->private_data;
+ if (!sdp)
+ return NULL;
+
+ return *sdp;
}
extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2097684..b303dfc 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -901,13 +901,10 @@
mutex_unlock(&cgroup_mutex);
/*
- * We want to drop the active superblock reference from the
- * cgroup creation after all the dentry refs are gone -
- * kill_sb gets mighty unhappy otherwise. Mark
- * dentry->d_fsdata with cgroup_diput() to tell
- * cgroup_d_release() to call deactivate_super().
+ * Drop the active superblock reference that we took when we
+ * created the cgroup
*/
- dentry->d_fsdata = cgroup_diput;
+ deactivate_super(cgrp->root->sb);
/*
* if we're getting rid of the cgroup, refcount should ensure
@@ -933,13 +930,6 @@
return 1;
}
-static void cgroup_d_release(struct dentry *dentry)
-{
- /* did cgroup_diput() tell me to deactivate super? */
- if (dentry->d_fsdata == cgroup_diput)
- deactivate_super(dentry->d_sb);
-}
-
static void remove_dir(struct dentry *d)
{
struct dentry *parent = dget(d->d_parent);
@@ -1547,7 +1537,6 @@
static const struct dentry_operations cgroup_dops = {
.d_iput = cgroup_diput,
.d_delete = cgroup_delete,
- .d_release = cgroup_d_release,
};
struct inode *inode =
@@ -3894,8 +3883,12 @@
{
struct cgroup_subsys_state *css =
container_of(work, struct cgroup_subsys_state, dput_work);
+ struct dentry *dentry = css->cgroup->dentry;
+ struct super_block *sb = dentry->d_sb;
- dput(css->cgroup->dentry);
+ atomic_inc(&sb->s_active);
+ dput(dentry);
+ deactivate_super(sb);
}
static void init_cgroup_css(struct cgroup_subsys_state *css,
diff --git a/kernel/printk.c b/kernel/printk.c
index dba1821..177fa49 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -194,8 +194,10 @@
*/
enum log_flags {
- LOG_DEFAULT = 0,
- LOG_NOCONS = 1, /* already flushed, do not print to console */
+ LOG_NOCONS = 1, /* already flushed, do not print to console */
+ LOG_NEWLINE = 2, /* text ended with a newline */
+ LOG_PREFIX = 4, /* text started with a prefix */
+ LOG_CONT = 8, /* text is a fragment of a continuation line */
};
struct log {
@@ -217,6 +219,8 @@
/* the next printk record to read by syslog(READ) or /proc/kmsg */
static u64 syslog_seq;
static u32 syslog_idx;
+static enum log_flags syslog_prev;
+static size_t syslog_partial;
/* index and sequence number of the first record stored in the buffer */
static u64 log_first_seq;
@@ -430,20 +434,20 @@
ret = mutex_lock_interruptible(&user->lock);
if (ret)
return ret;
- raw_spin_lock(&logbuf_lock);
+ raw_spin_lock_irq(&logbuf_lock);
while (user->seq == log_next_seq) {
if (file->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
- raw_spin_unlock(&logbuf_lock);
+ raw_spin_unlock_irq(&logbuf_lock);
goto out;
}
- raw_spin_unlock(&logbuf_lock);
+ raw_spin_unlock_irq(&logbuf_lock);
ret = wait_event_interruptible(log_wait,
user->seq != log_next_seq);
if (ret)
goto out;
- raw_spin_lock(&logbuf_lock);
+ raw_spin_lock_irq(&logbuf_lock);
}
if (user->seq < log_first_seq) {
@@ -451,7 +455,7 @@
user->idx = log_first_idx;
user->seq = log_first_seq;
ret = -EPIPE;
- raw_spin_unlock(&logbuf_lock);
+ raw_spin_unlock_irq(&logbuf_lock);
goto out;
}
@@ -465,7 +469,7 @@
for (i = 0; i < msg->text_len; i++) {
unsigned char c = log_text(msg)[i];
- if (c < ' ' || c >= 128)
+ if (c < ' ' || c >= 127 || c == '\\')
len += sprintf(user->buf + len, "\\x%02x", c);
else
user->buf[len++] = c;
@@ -489,7 +493,7 @@
continue;
}
- if (c < ' ' || c >= 128) {
+ if (c < ' ' || c >= 127 || c == '\\') {
len += sprintf(user->buf + len, "\\x%02x", c);
continue;
}
@@ -501,7 +505,7 @@
user->idx = log_next(user->idx);
user->seq++;
- raw_spin_unlock(&logbuf_lock);
+ raw_spin_unlock_irq(&logbuf_lock);
if (len > count) {
ret = -EINVAL;
@@ -528,7 +532,7 @@
if (offset)
return -ESPIPE;
- raw_spin_lock(&logbuf_lock);
+ raw_spin_lock_irq(&logbuf_lock);
switch (whence) {
case SEEK_SET:
/* the first record */
@@ -552,7 +556,7 @@
default:
ret = -EINVAL;
}
- raw_spin_unlock(&logbuf_lock);
+ raw_spin_unlock_irq(&logbuf_lock);
return ret;
}
@@ -566,14 +570,14 @@
poll_wait(file, &log_wait, wait);
- raw_spin_lock(&logbuf_lock);
+ raw_spin_lock_irq(&logbuf_lock);
if (user->seq < log_next_seq) {
/* return error when data has vanished underneath us */
if (user->seq < log_first_seq)
ret = POLLIN|POLLRDNORM|POLLERR|POLLPRI;
ret = POLLIN|POLLRDNORM;
}
- raw_spin_unlock(&logbuf_lock);
+ raw_spin_unlock_irq(&logbuf_lock);
return ret;
}
@@ -597,10 +601,10 @@
mutex_init(&user->lock);
- raw_spin_lock(&logbuf_lock);
+ raw_spin_lock_irq(&logbuf_lock);
user->idx = log_first_idx;
user->seq = log_first_seq;
- raw_spin_unlock(&logbuf_lock);
+ raw_spin_unlock_irq(&logbuf_lock);
file->private_data = user;
return 0;
@@ -818,15 +822,18 @@
static size_t print_prefix(const struct log *msg, bool syslog, char *buf)
{
size_t len = 0;
+ unsigned int prefix = (msg->facility << 3) | msg->level;
if (syslog) {
if (buf) {
- len += sprintf(buf, "<%u>", msg->level);
+ len += sprintf(buf, "<%u>", prefix);
} else {
len += 3;
- if (msg->level > 9)
- len++;
- if (msg->level > 99)
+ if (prefix > 999)
+ len += 3;
+ else if (prefix > 99)
+ len += 2;
+ else if (prefix > 9)
len++;
}
}
@@ -835,13 +842,26 @@
return len;
}
-static size_t msg_print_text(const struct log *msg, bool syslog,
- char *buf, size_t size)
+static size_t msg_print_text(const struct log *msg, enum log_flags prev,
+ bool syslog, char *buf, size_t size)
{
const char *text = log_text(msg);
size_t text_size = msg->text_len;
+ bool prefix = true;
+ bool newline = true;
size_t len = 0;
+ if ((prev & LOG_CONT) && !(msg->flags & LOG_PREFIX))
+ prefix = false;
+
+ if (msg->flags & LOG_CONT) {
+ if ((prev & LOG_CONT) && !(prev & LOG_NEWLINE))
+ prefix = false;
+
+ if (!(msg->flags & LOG_NEWLINE))
+ newline = false;
+ }
+
do {
const char *next = memchr(text, '\n', text_size);
size_t text_len;
@@ -859,16 +879,22 @@
text_len + 1>= size - len)
break;
- len += print_prefix(msg, syslog, buf + len);
+ if (prefix)
+ len += print_prefix(msg, syslog, buf + len);
memcpy(buf + len, text, text_len);
len += text_len;
- buf[len++] = '\n';
+ if (next || newline)
+ buf[len++] = '\n';
} else {
/* SYSLOG_ACTION_* buffer size only calculation */
- len += print_prefix(msg, syslog, NULL);
- len += text_len + 1;
+ if (prefix)
+ len += print_prefix(msg, syslog, NULL);
+ len += text_len;
+ if (next || newline)
+ len++;
}
+ prefix = true;
text = next;
} while (text);
@@ -887,22 +913,35 @@
while (size > 0) {
size_t n;
+ size_t skip;
raw_spin_lock_irq(&logbuf_lock);
if (syslog_seq < log_first_seq) {
/* messages are gone, move to first one */
syslog_seq = log_first_seq;
syslog_idx = log_first_idx;
+ syslog_prev = 0;
+ syslog_partial = 0;
}
if (syslog_seq == log_next_seq) {
raw_spin_unlock_irq(&logbuf_lock);
break;
}
+
+ skip = syslog_partial;
msg = log_from_idx(syslog_idx);
- n = msg_print_text(msg, true, text, LOG_LINE_MAX);
- if (n <= size) {
+ n = msg_print_text(msg, syslog_prev, true, text, LOG_LINE_MAX);
+ if (n - syslog_partial <= size) {
+ /* message fits into buffer, move forward */
syslog_idx = log_next(syslog_idx);
syslog_seq++;
+ syslog_prev = msg->flags;
+ n -= syslog_partial;
+ syslog_partial = 0;
+ } else if (!len){
+ /* partial read(), remember position */
+ n = size;
+ syslog_partial += n;
} else
n = 0;
raw_spin_unlock_irq(&logbuf_lock);
@@ -910,17 +949,15 @@
if (!n)
break;
- len += n;
- size -= n;
- buf += n;
- n = copy_to_user(buf - n, text, n);
-
- if (n) {
- len -= n;
+ if (copy_to_user(buf, text + skip, n)) {
if (!len)
len = -EFAULT;
break;
}
+
+ len += n;
+ size -= n;
+ buf += n;
}
kfree(text);
@@ -941,6 +978,7 @@
u64 next_seq;
u64 seq;
u32 idx;
+ enum log_flags prev;
if (clear_seq < log_first_seq) {
/* messages are gone, move to first available one */
@@ -954,10 +992,11 @@
*/
seq = clear_seq;
idx = clear_idx;
+ prev = 0;
while (seq < log_next_seq) {
struct log *msg = log_from_idx(idx);
- len += msg_print_text(msg, true, NULL, 0);
+ len += msg_print_text(msg, prev, true, NULL, 0);
idx = log_next(idx);
seq++;
}
@@ -965,10 +1004,11 @@
/* move first record forward until length fits into the buffer */
seq = clear_seq;
idx = clear_idx;
+ prev = 0;
while (len > size && seq < log_next_seq) {
struct log *msg = log_from_idx(idx);
- len -= msg_print_text(msg, true, NULL, 0);
+ len -= msg_print_text(msg, prev, true, NULL, 0);
idx = log_next(idx);
seq++;
}
@@ -977,17 +1017,19 @@
next_seq = log_next_seq;
len = 0;
+ prev = 0;
while (len >= 0 && seq < next_seq) {
struct log *msg = log_from_idx(idx);
int textlen;
- textlen = msg_print_text(msg, true, text, LOG_LINE_MAX);
+ textlen = msg_print_text(msg, prev, true, text, LOG_LINE_MAX);
if (textlen < 0) {
len = textlen;
break;
}
idx = log_next(idx);
seq++;
+ prev = msg->flags;
raw_spin_unlock_irq(&logbuf_lock);
if (copy_to_user(buf + len, text, textlen))
@@ -1000,6 +1042,7 @@
/* messages are gone, move to next one */
seq = log_first_seq;
idx = log_first_idx;
+ prev = 0;
}
}
}
@@ -1018,7 +1061,6 @@
{
bool clear = false;
static int saved_console_loglevel = -1;
- static DEFINE_MUTEX(syslog_mutex);
int error;
error = check_syslog_permissions(type, from_file);
@@ -1045,17 +1087,11 @@
error = -EFAULT;
goto out;
}
- error = mutex_lock_interruptible(&syslog_mutex);
- if (error)
- goto out;
error = wait_event_interruptible(log_wait,
syslog_seq != log_next_seq);
- if (error) {
- mutex_unlock(&syslog_mutex);
+ if (error)
goto out;
- }
error = syslog_print(buf, len);
- mutex_unlock(&syslog_mutex);
break;
/* Read/clear last kernel messages */
case SYSLOG_ACTION_READ_CLEAR:
@@ -1111,6 +1147,8 @@
/* messages are gone, move to first one */
syslog_seq = log_first_seq;
syslog_idx = log_first_idx;
+ syslog_prev = 0;
+ syslog_partial = 0;
}
if (from_file) {
/*
@@ -1120,19 +1158,20 @@
*/
error = log_next_idx - syslog_idx;
} else {
- u64 seq;
- u32 idx;
+ u64 seq = syslog_seq;
+ u32 idx = syslog_idx;
+ enum log_flags prev = syslog_prev;
error = 0;
- seq = syslog_seq;
- idx = syslog_idx;
while (seq < log_next_seq) {
struct log *msg = log_from_idx(idx);
- error += msg_print_text(msg, true, NULL, 0);
+ error += msg_print_text(msg, prev, true, NULL, 0);
idx = log_next(idx);
seq++;
+ prev = msg->flags;
}
+ error -= syslog_partial;
}
raw_spin_unlock_irq(&logbuf_lock);
break;
@@ -1400,10 +1439,9 @@
static char textbuf[LOG_LINE_MAX];
char *text = textbuf;
size_t text_len;
+ enum log_flags lflags = 0;
unsigned long flags;
int this_cpu;
- bool newline = false;
- bool prefix = false;
int printed_len = 0;
boot_delay_msec();
@@ -1442,7 +1480,7 @@
recursion_bug = 0;
printed_len += strlen(recursion_msg);
/* emit KERN_CRIT message */
- log_store(0, 2, LOG_DEFAULT, 0,
+ log_store(0, 2, LOG_PREFIX|LOG_NEWLINE, 0,
NULL, 0, recursion_msg, printed_len);
}
@@ -1455,7 +1493,7 @@
/* mark and strip a trailing newline */
if (text_len && text[text_len-1] == '\n') {
text_len--;
- newline = true;
+ lflags |= LOG_NEWLINE;
}
/* strip syslog prefix and extract log level or control flags */
@@ -1465,7 +1503,7 @@
if (level == -1)
level = text[1] - '0';
case 'd': /* KERN_DEFAULT */
- prefix = true;
+ lflags |= LOG_PREFIX;
case 'c': /* KERN_CONT */
text += 3;
text_len -= 3;
@@ -1475,22 +1513,20 @@
if (level == -1)
level = default_message_loglevel;
- if (dict) {
- prefix = true;
- newline = true;
- }
+ if (dict)
+ lflags |= LOG_PREFIX|LOG_NEWLINE;
- if (!newline) {
+ if (!(lflags & LOG_NEWLINE)) {
/*
* Flush the conflicting buffer. An earlier newline was missing,
* or another task also prints continuation lines.
*/
- if (cont.len && (prefix || cont.owner != current))
+ if (cont.len && (lflags & LOG_PREFIX || cont.owner != current))
cont_flush();
/* buffer line if possible, otherwise store it right away */
if (!cont_add(facility, level, text, text_len))
- log_store(facility, level, LOG_DEFAULT, 0,
+ log_store(facility, level, lflags | LOG_CONT, 0,
dict, dictlen, text, text_len);
} else {
bool stored = false;
@@ -1502,13 +1538,13 @@
* flush it out and store this line separately.
*/
if (cont.len && cont.owner == current) {
- if (!prefix)
+ if (!(lflags & LOG_PREFIX))
stored = cont_add(facility, level, text, text_len);
cont_flush();
}
if (!stored)
- log_store(facility, level, LOG_DEFAULT, 0,
+ log_store(facility, level, lflags, 0,
dict, dictlen, text, text_len);
}
printed_len += text_len;
@@ -1607,8 +1643,8 @@
static struct log *log_from_idx(u32 idx) { return NULL; }
static u32 log_next(u32 idx) { return 0; }
static void call_console_drivers(int level, const char *text, size_t len) {}
-static size_t msg_print_text(const struct log *msg, bool syslog,
- char *buf, size_t size) { return 0; }
+static size_t msg_print_text(const struct log *msg, enum log_flags prev,
+ bool syslog, char *buf, size_t size) { return 0; }
static size_t cont_print_text(char *text, size_t size) { return 0; }
#endif /* CONFIG_PRINTK */
@@ -1884,6 +1920,7 @@
/* the next printk record to write to the console */
static u64 console_seq;
static u32 console_idx;
+static enum log_flags console_prev;
/**
* console_unlock - unlock the console system
@@ -1944,6 +1981,7 @@
/* messages are gone, move to first one */
console_seq = log_first_seq;
console_idx = log_first_idx;
+ console_prev = 0;
}
skip:
if (console_seq == log_next_seq)
@@ -1957,14 +1995,21 @@
*/
console_idx = log_next(console_idx);
console_seq++;
+ /*
+ * We will get here again when we register a new
+ * CON_PRINTBUFFER console. Clear the flag so we
+ * will properly dump everything later.
+ */
+ msg->flags &= ~LOG_NOCONS;
goto skip;
}
level = msg->level;
- len = msg_print_text(msg, false, text, sizeof(text));
-
+ len = msg_print_text(msg, console_prev, false,
+ text, sizeof(text));
console_idx = log_next(console_idx);
console_seq++;
+ console_prev = msg->flags;
raw_spin_unlock(&logbuf_lock);
stop_critical_timings(); /* don't trace print latency */
@@ -2227,6 +2272,7 @@
raw_spin_lock_irqsave(&logbuf_lock, flags);
console_seq = syslog_seq;
console_idx = syslog_idx;
+ console_prev = syslog_prev;
raw_spin_unlock_irqrestore(&logbuf_lock, flags);
/*
* We're about to replay the log buffer. Only do this to the
@@ -2520,8 +2566,7 @@
}
msg = log_from_idx(dumper->cur_idx);
- l = msg_print_text(msg, syslog,
- line, size);
+ l = msg_print_text(msg, 0, syslog, line, size);
dumper->cur_idx = log_next(dumper->cur_idx);
dumper->cur_seq++;
@@ -2561,6 +2606,7 @@
u32 idx;
u64 next_seq;
u32 next_idx;
+ enum log_flags prev;
size_t l = 0;
bool ret = false;
@@ -2583,23 +2629,27 @@
/* calculate length of entire buffer */
seq = dumper->cur_seq;
idx = dumper->cur_idx;
+ prev = 0;
while (seq < dumper->next_seq) {
struct log *msg = log_from_idx(idx);
- l += msg_print_text(msg, true, NULL, 0);
+ l += msg_print_text(msg, prev, true, NULL, 0);
idx = log_next(idx);
seq++;
+ prev = msg->flags;
}
/* move first record forward until length fits into the buffer */
seq = dumper->cur_seq;
idx = dumper->cur_idx;
+ prev = 0;
while (l > size && seq < dumper->next_seq) {
struct log *msg = log_from_idx(idx);
- l -= msg_print_text(msg, true, NULL, 0);
+ l -= msg_print_text(msg, prev, true, NULL, 0);
idx = log_next(idx);
seq++;
+ prev = msg->flags;
}
/* last message in next interation */
@@ -2607,14 +2657,14 @@
next_idx = idx;
l = 0;
+ prev = 0;
while (seq < dumper->next_seq) {
struct log *msg = log_from_idx(idx);
- l += msg_print_text(msg, syslog,
- buf + l, size - l);
-
+ l += msg_print_text(msg, prev, syslog, buf + l, size - l);
idx = log_next(idx);
seq++;
+ prev = msg->flags;
}
dumper->next_seq = next_seq;
diff --git a/kernel/sys.c b/kernel/sys.c
index e0c8ffc..2d39a84 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1788,7 +1788,6 @@
#ifdef CONFIG_CHECKPOINT_RESTORE
static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
{
- struct vm_area_struct *vma;
struct file *exe_file;
struct dentry *dentry;
int err;
@@ -1816,13 +1815,17 @@
down_write(&mm->mmap_sem);
/*
- * Forbid mm->exe_file change if there are mapped other files.
+ * Forbid mm->exe_file change if old file still mapped.
*/
err = -EBUSY;
- for (vma = mm->mmap; vma; vma = vma->vm_next) {
- if (vma->vm_file && !path_equal(&vma->vm_file->f_path,
- &exe_file->f_path))
- goto exit_unlock;
+ if (mm->exe_file) {
+ struct vm_area_struct *vma;
+
+ for (vma = mm->mmap; vma; vma = vma->vm_next)
+ if (vma->vm_file &&
+ path_equal(&vma->vm_file->f_path,
+ &mm->exe_file->f_path))
+ goto exit_unlock;
}
/*
@@ -1835,6 +1838,7 @@
if (test_and_set_bit(MMF_EXE_FILE_CHANGED, &mm->flags))
goto exit_unlock;
+ err = 0;
set_mm_exe_file(mm, exe_file);
exit_unlock:
up_write(&mm->mmap_sem);
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 518aea7..66ce414 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -78,7 +78,7 @@
static DEFINE_SPINLOCK(free_entries_lock);
/* Global disable flag - will be set in case of an error */
-static bool global_disable __read_mostly;
+static u32 global_disable __read_mostly;
/* Global error count */
static u32 error_count;
@@ -657,7 +657,7 @@
global_disable_dent = debugfs_create_bool("disabled", 0444,
dma_debug_dent,
- (u32 *)&global_disable);
+ &global_disable);
if (!global_disable_dent)
goto out_err;
diff --git a/mm/bootmem.c b/mm/bootmem.c
index ec4fcb7..7309663 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -698,7 +698,7 @@
return ___alloc_bootmem(size, align, goal, limit);
}
-static void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
+void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
unsigned long size, unsigned long align,
unsigned long goal, unsigned long limit)
{
diff --git a/mm/compaction.c b/mm/compaction.c
index 7ea259d..2f42d95 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -701,8 +701,11 @@
if (err) {
putback_lru_pages(&cc->migratepages);
cc->nr_migratepages = 0;
+ if (err == -ENOMEM) {
+ ret = COMPACT_PARTIAL;
+ goto out;
+ }
}
-
}
out:
diff --git a/mm/memblock.c b/mm/memblock.c
index d438209..5cc6731 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -143,30 +143,6 @@
MAX_NUMNODES);
}
-/*
- * Free memblock.reserved.regions
- */
-int __init_memblock memblock_free_reserved_regions(void)
-{
- if (memblock.reserved.regions == memblock_reserved_init_regions)
- return 0;
-
- return memblock_free(__pa(memblock.reserved.regions),
- sizeof(struct memblock_region) * memblock.reserved.max);
-}
-
-/*
- * Reserve memblock.reserved.regions
- */
-int __init_memblock memblock_reserve_reserved_regions(void)
-{
- if (memblock.reserved.regions == memblock_reserved_init_regions)
- return 0;
-
- return memblock_reserve(__pa(memblock.reserved.regions),
- sizeof(struct memblock_region) * memblock.reserved.max);
-}
-
static void __init_memblock memblock_remove_region(struct memblock_type *type, unsigned long r)
{
type->total_size -= type->regions[r].size;
@@ -184,6 +160,18 @@
}
}
+phys_addr_t __init_memblock get_allocated_memblock_reserved_regions_info(
+ phys_addr_t *addr)
+{
+ if (memblock.reserved.regions == memblock_reserved_init_regions)
+ return 0;
+
+ *addr = __pa(memblock.reserved.regions);
+
+ return PAGE_ALIGN(sizeof(struct memblock_region) *
+ memblock.reserved.max);
+}
+
/**
* memblock_double_array - double the size of the memblock regions array
* @type: memblock type of the regions array being doubled
@@ -204,6 +192,7 @@
phys_addr_t new_area_size)
{
struct memblock_region *new_array, *old_array;
+ phys_addr_t old_alloc_size, new_alloc_size;
phys_addr_t old_size, new_size, addr;
int use_slab = slab_is_available();
int *in_slab;
@@ -217,6 +206,12 @@
/* Calculate new doubled size */
old_size = type->max * sizeof(struct memblock_region);
new_size = old_size << 1;
+ /*
+ * We need to allocated new one align to PAGE_SIZE,
+ * so we can free them completely later.
+ */
+ old_alloc_size = PAGE_ALIGN(old_size);
+ new_alloc_size = PAGE_ALIGN(new_size);
/* Retrieve the slab flag */
if (type == &memblock.memory)
@@ -245,11 +240,11 @@
addr = memblock_find_in_range(new_area_start + new_area_size,
memblock.current_limit,
- new_size, sizeof(phys_addr_t));
+ new_alloc_size, PAGE_SIZE);
if (!addr && new_area_size)
addr = memblock_find_in_range(0,
min(new_area_start, memblock.current_limit),
- new_size, sizeof(phys_addr_t));
+ new_alloc_size, PAGE_SIZE);
new_array = addr ? __va(addr) : 0;
}
@@ -279,13 +274,13 @@
kfree(old_array);
else if (old_array != memblock_memory_init_regions &&
old_array != memblock_reserved_init_regions)
- memblock_free(__pa(old_array), old_size);
+ memblock_free(__pa(old_array), old_alloc_size);
/* Reserve the new array if that comes from the memblock.
* Otherwise, we needn't do it
*/
if (!use_slab)
- BUG_ON(memblock_reserve(addr, new_size));
+ BUG_ON(memblock_reserve(addr, new_alloc_size));
/* Update slab flag */
*in_slab = use_slab;
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 0d7e3ec..427bb29 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -618,7 +618,7 @@
pgdat = hotadd_new_pgdat(nid, start);
ret = -ENOMEM;
if (!pgdat)
- goto out;
+ goto error;
new_pgdat = 1;
}
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index d23415c..4055730 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -105,27 +105,35 @@
__free_pages_bootmem(pfn_to_page(i), 0);
}
+static unsigned long __init __free_memory_core(phys_addr_t start,
+ phys_addr_t end)
+{
+ unsigned long start_pfn = PFN_UP(start);
+ unsigned long end_pfn = min_t(unsigned long,
+ PFN_DOWN(end), max_low_pfn);
+
+ if (start_pfn > end_pfn)
+ return 0;
+
+ __free_pages_memory(start_pfn, end_pfn);
+
+ return end_pfn - start_pfn;
+}
+
unsigned long __init free_low_memory_core_early(int nodeid)
{
unsigned long count = 0;
- phys_addr_t start, end;
+ phys_addr_t start, end, size;
u64 i;
- /* free reserved array temporarily so that it's treated as free area */
- memblock_free_reserved_regions();
+ for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL)
+ count += __free_memory_core(start, end);
- for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL) {
- unsigned long start_pfn = PFN_UP(start);
- unsigned long end_pfn = min_t(unsigned long,
- PFN_DOWN(end), max_low_pfn);
- if (start_pfn < end_pfn) {
- __free_pages_memory(start_pfn, end_pfn);
- count += end_pfn - start_pfn;
- }
- }
+ /* free range that is used for reserved array if we allocate it */
+ size = get_allocated_memblock_reserved_regions_info(&start);
+ if (size)
+ count += __free_memory_core(start, start + size);
- /* put region array back? */
- memblock_reserve_reserved_regions();
return count;
}
@@ -274,7 +282,7 @@
return ___alloc_bootmem(size, align, goal, limit);
}
-static void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
+void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal,
diff --git a/mm/shmem.c b/mm/shmem.c
index 4ce02e0..bd10636 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -264,46 +264,55 @@
}
/*
+ * Sometimes, before we decide whether to proceed or to fail, we must check
+ * that an entry was not already brought back from swap by a racing thread.
+ *
+ * Checking page is not enough: by the time a SwapCache page is locked, it
+ * might be reused, and again be SwapCache, using the same swap as before.
+ */
+static bool shmem_confirm_swap(struct address_space *mapping,
+ pgoff_t index, swp_entry_t swap)
+{
+ void *item;
+
+ rcu_read_lock();
+ item = radix_tree_lookup(&mapping->page_tree, index);
+ rcu_read_unlock();
+ return item == swp_to_radix_entry(swap);
+}
+
+/*
* Like add_to_page_cache_locked, but error if expected item has gone.
*/
static int shmem_add_to_page_cache(struct page *page,
struct address_space *mapping,
pgoff_t index, gfp_t gfp, void *expected)
{
- int error = 0;
+ int error;
VM_BUG_ON(!PageLocked(page));
VM_BUG_ON(!PageSwapBacked(page));
- if (!expected)
- error = radix_tree_preload(gfp & GFP_RECLAIM_MASK);
- if (!error) {
- page_cache_get(page);
- page->mapping = mapping;
- page->index = index;
+ page_cache_get(page);
+ page->mapping = mapping;
+ page->index = index;
- spin_lock_irq(&mapping->tree_lock);
- if (!expected)
- error = radix_tree_insert(&mapping->page_tree,
- index, page);
- else
- error = shmem_radix_tree_replace(mapping, index,
- expected, page);
- if (!error) {
- mapping->nrpages++;
- __inc_zone_page_state(page, NR_FILE_PAGES);
- __inc_zone_page_state(page, NR_SHMEM);
- spin_unlock_irq(&mapping->tree_lock);
- } else {
- page->mapping = NULL;
- spin_unlock_irq(&mapping->tree_lock);
- page_cache_release(page);
- }
- if (!expected)
- radix_tree_preload_end();
+ spin_lock_irq(&mapping->tree_lock);
+ if (!expected)
+ error = radix_tree_insert(&mapping->page_tree, index, page);
+ else
+ error = shmem_radix_tree_replace(mapping, index, expected,
+ page);
+ if (!error) {
+ mapping->nrpages++;
+ __inc_zone_page_state(page, NR_FILE_PAGES);
+ __inc_zone_page_state(page, NR_SHMEM);
+ spin_unlock_irq(&mapping->tree_lock);
+ } else {
+ page->mapping = NULL;
+ spin_unlock_irq(&mapping->tree_lock);
+ page_cache_release(page);
}
- if (error)
- mem_cgroup_uncharge_cache_page(page);
return error;
}
@@ -1124,9 +1133,9 @@
/* We have to do this with page locked to prevent races */
lock_page(page);
if (!PageSwapCache(page) || page_private(page) != swap.val ||
- page->mapping) {
+ !shmem_confirm_swap(mapping, index, swap)) {
error = -EEXIST; /* try again */
- goto failed;
+ goto unlock;
}
if (!PageUptodate(page)) {
error = -EIO;
@@ -1142,9 +1151,12 @@
error = mem_cgroup_cache_charge(page, current->mm,
gfp & GFP_RECLAIM_MASK);
- if (!error)
+ if (!error) {
error = shmem_add_to_page_cache(page, mapping, index,
gfp, swp_to_radix_entry(swap));
+ /* We already confirmed swap, and make no allocation */
+ VM_BUG_ON(error);
+ }
if (error)
goto failed;
@@ -1181,11 +1193,18 @@
__set_page_locked(page);
error = mem_cgroup_cache_charge(page, current->mm,
gfp & GFP_RECLAIM_MASK);
- if (!error)
- error = shmem_add_to_page_cache(page, mapping, index,
- gfp, NULL);
if (error)
goto decused;
+ error = radix_tree_preload(gfp & GFP_RECLAIM_MASK);
+ if (!error) {
+ error = shmem_add_to_page_cache(page, mapping, index,
+ gfp, NULL);
+ radix_tree_preload_end();
+ }
+ if (error) {
+ mem_cgroup_uncharge_cache_page(page);
+ goto decused;
+ }
lru_cache_add_anon(page);
spin_lock(&info->lock);
@@ -1245,14 +1264,10 @@
unacct:
shmem_unacct_blocks(info->flags, 1);
failed:
- if (swap.val && error != -EINVAL) {
- struct page *test = find_get_page(mapping, index);
- if (test && !radix_tree_exceptional_entry(test))
- page_cache_release(test);
- /* Have another try if the entry has changed */
- if (test != swp_to_radix_entry(swap))
- error = -EEXIST;
- }
+ if (swap.val && error != -EINVAL &&
+ !shmem_confirm_swap(mapping, index, swap))
+ error = -EEXIST;
+unlock:
if (page) {
unlock_page(page);
page_cache_release(page);
@@ -1264,7 +1279,7 @@
spin_unlock(&info->lock);
goto repeat;
}
- if (error == -EEXIST)
+ if (error == -EEXIST) /* from above or from radix_tree_insert */
goto repeat;
return error;
}
@@ -1692,98 +1707,6 @@
return error;
}
-/*
- * llseek SEEK_DATA or SEEK_HOLE through the radix_tree.
- */
-static pgoff_t shmem_seek_hole_data(struct address_space *mapping,
- pgoff_t index, pgoff_t end, int origin)
-{
- struct page *page;
- struct pagevec pvec;
- pgoff_t indices[PAGEVEC_SIZE];
- bool done = false;
- int i;
-
- pagevec_init(&pvec, 0);
- pvec.nr = 1; /* start small: we may be there already */
- while (!done) {
- pvec.nr = shmem_find_get_pages_and_swap(mapping, index,
- pvec.nr, pvec.pages, indices);
- if (!pvec.nr) {
- if (origin == SEEK_DATA)
- index = end;
- break;
- }
- for (i = 0; i < pvec.nr; i++, index++) {
- if (index < indices[i]) {
- if (origin == SEEK_HOLE) {
- done = true;
- break;
- }
- index = indices[i];
- }
- page = pvec.pages[i];
- if (page && !radix_tree_exceptional_entry(page)) {
- if (!PageUptodate(page))
- page = NULL;
- }
- if (index >= end ||
- (page && origin == SEEK_DATA) ||
- (!page && origin == SEEK_HOLE)) {
- done = true;
- break;
- }
- }
- shmem_deswap_pagevec(&pvec);
- pagevec_release(&pvec);
- pvec.nr = PAGEVEC_SIZE;
- cond_resched();
- }
- return index;
-}
-
-static loff_t shmem_file_llseek(struct file *file, loff_t offset, int origin)
-{
- struct address_space *mapping;
- struct inode *inode;
- pgoff_t start, end;
- loff_t new_offset;
-
- if (origin != SEEK_DATA && origin != SEEK_HOLE)
- return generic_file_llseek_size(file, offset, origin,
- MAX_LFS_FILESIZE);
- mapping = file->f_mapping;
- inode = mapping->host;
- mutex_lock(&inode->i_mutex);
- /* We're holding i_mutex so we can access i_size directly */
-
- if (offset < 0)
- offset = -EINVAL;
- else if (offset >= inode->i_size)
- offset = -ENXIO;
- else {
- start = offset >> PAGE_CACHE_SHIFT;
- end = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
- new_offset = shmem_seek_hole_data(mapping, start, end, origin);
- new_offset <<= PAGE_CACHE_SHIFT;
- if (new_offset > offset) {
- if (new_offset < inode->i_size)
- offset = new_offset;
- else if (origin == SEEK_DATA)
- offset = -ENXIO;
- else
- offset = inode->i_size;
- }
- }
-
- if (offset >= 0 && offset != file->f_pos) {
- file->f_pos = offset;
- file->f_version = 0;
- }
- mutex_unlock(&inode->i_mutex);
- return offset;
-}
-
static long shmem_fallocate(struct file *file, int mode, loff_t offset,
loff_t len)
{
@@ -2787,7 +2710,7 @@
static const struct file_operations shmem_file_operations = {
.mmap = shmem_mmap,
#ifdef CONFIG_TMPFS
- .llseek = shmem_file_llseek,
+ .llseek = generic_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
.aio_read = shmem_file_aio_read,
diff --git a/mm/sparse.c b/mm/sparse.c
index 6a4bf91..c7bb952 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -275,8 +275,9 @@
sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
unsigned long size)
{
- pg_data_t *host_pgdat;
- unsigned long goal;
+ unsigned long goal, limit;
+ unsigned long *p;
+ int nid;
/*
* A page may contain usemaps for other sections preventing the
* page being freed and making a section unremovable while
@@ -287,10 +288,17 @@
* from the same section as the pgdat where possible to avoid
* this problem.
*/
- goal = __pa(pgdat) & PAGE_SECTION_MASK;
- host_pgdat = NODE_DATA(early_pfn_to_nid(goal >> PAGE_SHIFT));
- return __alloc_bootmem_node_nopanic(host_pgdat, size,
- SMP_CACHE_BYTES, goal);
+ goal = __pa(pgdat) & (PAGE_SECTION_MASK << PAGE_SHIFT);
+ limit = goal + (1UL << PA_SECTION_SHIFT);
+ nid = early_pfn_to_nid(goal >> PAGE_SHIFT);
+again:
+ p = ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size,
+ SMP_CACHE_BYTES, goal, limit);
+ if (!p && limit) {
+ limit = 0;
+ goto again;
+ }
+ return p;
}
static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index eeb3bc9..6615763 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2955,14 +2955,17 @@
}
/*
- * Called by memory hotplug when all memory in a node is offlined.
+ * Called by memory hotplug when all memory in a node is offlined. Caller must
+ * hold lock_memory_hotplug().
*/
void kswapd_stop(int nid)
{
struct task_struct *kswapd = NODE_DATA(nid)->kswapd;
- if (kswapd)
+ if (kswapd) {
kthread_stop(kswapd);
+ NODE_DATA(nid)->kswapd = NULL;
+ }
}
static int __init kswapd_init(void)
diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index b1e091a..23a41a9 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -334,6 +334,11 @@
}
#ifdef __KVM_HAVE_MSI
+static irqreturn_t kvm_assigned_dev_msi(int irq, void *dev_id)
+{
+ return IRQ_WAKE_THREAD;
+}
+
static int assigned_device_enable_host_msi(struct kvm *kvm,
struct kvm_assigned_dev_kernel *dev)
{
@@ -346,7 +351,7 @@
}
dev->host_irq = dev->dev->irq;
- if (request_threaded_irq(dev->host_irq, NULL,
+ if (request_threaded_irq(dev->host_irq, kvm_assigned_dev_msi,
kvm_assigned_dev_thread_msi, 0,
dev->irq_name, dev)) {
pci_disable_msi(dev->dev);
@@ -358,6 +363,11 @@
#endif
#ifdef __KVM_HAVE_MSIX
+static irqreturn_t kvm_assigned_dev_msix(int irq, void *dev_id)
+{
+ return IRQ_WAKE_THREAD;
+}
+
static int assigned_device_enable_host_msix(struct kvm *kvm,
struct kvm_assigned_dev_kernel *dev)
{
@@ -374,7 +384,8 @@
for (i = 0; i < dev->entries_nr; i++) {
r = request_threaded_irq(dev->host_msix_entries[i].vector,
- NULL, kvm_assigned_dev_thread_msix,
+ kvm_assigned_dev_msix,
+ kvm_assigned_dev_thread_msix,
0, dev->irq_name, dev);
if (r)
goto err;
