On Saturday 04 July 2009, Jiri Slaby wrote:
quoted text
> On 07/04/2009 06:59 PM, Bob Copeland wrote:
> > Paraphrasing Rafael J. Wysocki: "drivers should not release PCI IRQs
> > in suspend."  Doing so causes a warning during suspend/resume on some
> > platforms.
> 
> Hmm, I added it because I was told an irq can change over suspend (or at
> least it could in the past). I think it's not true anymore, since we
> would have serious problems with the code all over the tree.
> 
> I can't find where Rafael uttered those words above, do you have a link?

Someone recently asked on a mailing list (unfortunately I can't recall
which one) if drivers should release irqs over suspend.

The answer was more-or-less that drivers are not expected to do that and it
really is not recommended.  In fact, we do the whole suspend_device_irqs()
thing, because the drivers are expected not to do that.

Best,
Rafael
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