Messages in this thread | | | Date | Thu, 26 Feb 2009 16:27:29 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [RFC][PATCH 2/2] PM: Rework handling of interrupts during suspend-resume |
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On Thu, 26 Feb 2009, Arve Hjønnevåg wrote: > > How many sysdevs use interrupts? > > I found may drivers in the mainline kernel that use enable_irq_wake, > but I did not see any that handle this race condition.
The _only_ driver that does enable_irq_wake() on x86 is the cmos timer driver, and even there it actually doesn't use irq_wake, but ACPI. Why? Because I don't think irq wakeup even _works_ on x86.
So the whole enable_irq_wake is largely some embedded ARM platform issue, and a very special case, and doesn't exist anywhere else.
Maybe I'm missing something, but it's definitely not the normal case.
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