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Date: Tue, 8 Nov 2011 16:09:42 -0800
From: Greg KH <gregkh@...e.de>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...r.kernel.org, lwn@....net
Subject: Re: Linux 2.6.32.48
diff --git a/Makefile b/Makefile
index 87c02aa..400a175 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 32
-EXTRAVERSION = .47
+EXTRAVERSION = .48
NAME = Man-Eating Seals of Antiquity
# *DOCUMENTATION*
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index b54d581..30c44e6 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -567,10 +567,12 @@ static void __init mpic_scan_ht_pics(struct mpic *mpic)
#endif /* CONFIG_MPIC_U3_HT_IRQS */
#ifdef CONFIG_SMP
-static int irq_choose_cpu(const cpumask_t *mask)
+static int irq_choose_cpu(unsigned int virt_irq)
{
+ cpumask_t mask;
int cpuid;
+ cpumask_copy(&mask, irq_desc[virt_irq].affinity);
if (cpus_equal(mask, CPU_MASK_ALL)) {
static int irq_rover;
static DEFINE_SPINLOCK(irq_rover_lock);
@@ -592,15 +594,20 @@ static int irq_choose_cpu(const cpumask_t *mask)
spin_unlock_irqrestore(&irq_rover_lock, flags);
} else {
- cpuid = cpumask_first_and(mask, cpu_online_mask);
- if (cpuid >= nr_cpu_ids)
+ cpumask_t tmp;
+
+ cpus_and(tmp, cpu_online_map, mask);
+
+ if (cpus_empty(tmp))
goto do_round_robin;
+
+ cpuid = first_cpu(tmp);
}
return get_hard_smp_processor_id(cpuid);
}
#else
-static int irq_choose_cpu(const cpumask_t *mask)
+static int irq_choose_cpu(unsigned int virt_irq)
{
return hard_smp_processor_id();
}
@@ -809,7 +816,7 @@ int mpic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
unsigned int src = mpic_irq_to_hw(irq);
if (mpic->flags & MPIC_SINGLE_DEST_CPU) {
- int cpuid = irq_choose_cpu(cpumask);
+ int cpuid = irq_choose_cpu(irq);
mpic_irq_write(src, MPIC_INFO(IRQ_DESTINATION), 1 << cpuid);
} else {
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 3f202f7..0d90390 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -471,12 +471,6 @@ int sysdev_resume(void)
{
struct sysdev_class *cls;
- /*
- * Called from syscore in mainline but called directly here
- * since syscore does not exist in this tree.
- */
- irq_pm_syscore_resume();
-
WARN_ONCE(!irqs_disabled(),
"Interrupts enabled while resuming system devices\n");
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 15ed43e..009ca4e 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -536,7 +536,7 @@ int bind_ipi_to_irqhandler(enum ipi_vector ipi,
if (irq < 0)
return irq;
- irqflags |= IRQF_NO_SUSPEND | IRQF_FORCE_RESUME | IRQF_EARLY_RESUME;
+ irqflags |= IRQF_NO_SUSPEND | IRQF_FORCE_RESUME;
retval = request_irq(irq, handler, irqflags, devname, dev_id);
if (retval != 0) {
unbind_from_irq(irq);
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index c7e1aa5..4528f29 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -54,8 +54,6 @@
* irq line disabled until the threaded handler has been run.
* IRQF_NO_SUSPEND - Do not disable this IRQ during suspend
* IRQF_FORCE_RESUME - Force enable it on resume even if IRQF_NO_SUSPEND is set
- * IRQF_EARLY_RESUME - Resume IRQ early during syscore instead of at device
- * resume time.
*/
#define IRQF_DISABLED 0x00000020
#define IRQF_SAMPLE_RANDOM 0x00000040
@@ -68,7 +66,6 @@
#define IRQF_ONESHOT 0x00002000
#define IRQF_NO_SUSPEND 0x00004000
#define IRQF_FORCE_RESUME 0x00008000
-#define IRQF_EARLY_RESUME 0x00020000
#define IRQF_TIMER (__IRQF_TIMER | IRQF_NO_SUSPEND)
@@ -199,7 +196,6 @@ extern void enable_irq(unsigned int irq);
#ifdef CONFIG_GENERIC_HARDIRQS
extern void suspend_device_irqs(void);
extern void resume_device_irqs(void);
-extern void irq_pm_syscore_resume(void);
#ifdef CONFIG_PM_SLEEP
extern int check_wakeup_irqs(void);
#else
@@ -208,7 +204,6 @@ static inline int check_wakeup_irqs(void) { return 0; }
#else
static inline void suspend_device_irqs(void) { };
static inline void resume_device_irqs(void) { };
-static inline void irq_pm_syscore_resume(void) { };
static inline int check_wakeup_irqs(void) { return 0; }
#endif
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index b1fc3dd..0067abb 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -39,46 +39,25 @@ void suspend_device_irqs(void)
}
EXPORT_SYMBOL_GPL(suspend_device_irqs);
-static void resume_irqs(bool want_early)
+/**
+ * resume_device_irqs - enable interrupt lines disabled by suspend_device_irqs()
+ *
+ * Enable all interrupt lines previously disabled by suspend_device_irqs() that
+ * have the IRQ_SUSPENDED flag set.
+ */
+void resume_device_irqs(void)
{
struct irq_desc *desc;
int irq;
for_each_irq_desc(irq, desc) {
unsigned long flags;
- bool is_early = desc->action &&
- desc->action->flags & IRQF_EARLY_RESUME;
-
- if (is_early != want_early)
- continue;
spin_lock_irqsave(&desc->lock, flags);
__enable_irq(desc, irq, true);
spin_unlock_irqrestore(&desc->lock, flags);
}
}
-
-/**
- * irq_pm_syscore_ops - enable interrupt lines early
- *
- * Enable all interrupt lines with %IRQF_EARLY_RESUME set.
- */
-void irq_pm_syscore_resume(void)
-{
- resume_irqs(true);
-}
-
-/**
- * resume_device_irqs - enable interrupt lines disabled by suspend_device_irqs()
- *
- * Enable all non-%IRQF_EARLY_RESUME interrupt lines previously
- * disabled by suspend_device_irqs() that have the IRQS_SUSPENDED flag
- * set as well as those with %IRQF_FORCE_RESUME.
- */
-void resume_device_irqs(void)
-{
- resume_irqs(false);
-}
EXPORT_SYMBOL_GPL(resume_device_irqs);
/**
diff --git a/sound/soc/codecs/wm8940.c b/sound/soc/codecs/wm8940.c
index c9510a5..63bc2ae 100644
--- a/sound/soc/codecs/wm8940.c
+++ b/sound/soc/codecs/wm8940.c
@@ -473,8 +473,6 @@ static int wm8940_set_bias_level(struct snd_soc_codec *codec,
break;
}
- codec->dapm.bias_level = level;
-
return ret;
}
--
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