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

[Thomas Gleixner]

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
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