Re: [RFC][PATCH 1/4] PM: Rework handling of interrupts during suspend-resume (rev. 4)

Linus Torvalds
2009-03-02T23:36:25Z

On Mon, 2 Mar 2009, Linus Torvalds wrote:
>
> If IRQ_SUSPENDED _is_ set, then that means that we're after the
> suspend_late() sequence and before the resume_early() sequence

Sorry, after the suspend, and before the resume.

We could be _in_ the suspend_late/resume_early sequence, but a driver that
were to try to play with interrupts at that stage would be broken. It
can't very well do a enable_irq(), because that would be a MAJOR BUG - it
would make the whole irq suspend thing pointless, since now interrupts
would start to happen exactly where they must not happen!

Linus