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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-11 13:20:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-11 13:20:42 -0700
commit12a499612e1ff439bdad240c7f86c55366941d4d (patch)
tree9fd218631e0c8c26a5ffc41ebce1d65f8e826339 /kernel/irq/pm.c
parenteee2775d9924b22643bd89b2e568cc5eed7e8a04 (diff)
parent70590ea75b7f9ef4846b0b0f4400e8338dbcc7eb (diff)
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: pci/intr_remapping: Allocate irq_iommu on node irq: Add irq_node() primitive irq: Make sure irq_desc for legacy irq get correct node setting genirq: Add prototype for handle_nested_irq() irq: Remove superfluous NULL pointer check in check_irq_resend() irq: Clean up by removing irqfixup MODULE_PARM_DESC() genirq: Fix comment describing suspend_device_irqs() genirq: Remove obsolete defines and typedefs
Diffstat (limited to 'kernel/irq/pm.c')
-rw-r--r--kernel/irq/pm.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index 638d8bedec1..a0bb09e7986 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -15,10 +15,10 @@
/**
* suspend_device_irqs - disable all currently enabled interrupt lines
*
- * During system-wide suspend or hibernation device interrupts need to be
- * disabled at the chip level and this function is provided for this purpose.
- * It disables all interrupt lines that are enabled at the moment and sets the
- * IRQ_SUSPENDED flag for them.
+ * During system-wide suspend or hibernation device drivers need to be prevented
+ * from receiving interrupts and this function is provided for this purpose.
+ * It marks all interrupt lines in use, except for the timer ones, as disabled
+ * and sets the IRQ_SUSPENDED flag for each of them.
*/
void suspend_device_irqs(void)
{