Re: [PATCH v5] Report interrupt(s) that caused system wakeup

[Thomas Gleixner <tglx@linutronix.de>]

On Tue, 18 Aug 2015, Rafael J. Wysocki wrote:
> The original point was that if two wakeup interrupts happened at the same time,
> it would be kind of moot which one was the "real" wakeup, but now that I think
> about it, reporting the first one should be enough to catch suprious wakeups
> anyway.

So we can simply do the following:

diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index d22786a6dbde..46068a1e0e07 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -21,7 +21,7 @@ bool irq_pm_check_wakeup(struct irq_desc *desc)
 		desc->istate |= IRQS_SUSPENDED | IRQS_PENDING;
 		desc->depth++;
 		irq_disable(desc);
-		pm_system_wakeup();
+		pm_system_irq_wakeup(irq_desc_get_irq(desc));
 		return true;
 	}
 	return false;

and manage the storage in the PM code.

Thanks,

	tglx