At Sat, 6 Dec 2008 22:00:59 -0800 (PST),
Linus Torvalds wrote:
quoted text
> 
> 
> 
> On Sat, 6 Dec 2008, Arjan van de Ven wrote:
> > 
> > the problem is that the system bios can have reassigned interrupts
> > after resume, and afaik we need to re-evaluate the ACPI methods to
> > get the new mapping.
> > So we need to unregister + re-register to make that happen
> 
> Can you give actual examples of real life situations?

There were such cases on intel8x0 and maestro3 on-board sound devices,
but all they were about hibernate, IIRC.  Just though a quick git 
log search, I found the following:
	http://bugzilla.kernel.org/show_bug.cgi?id=4416


Takashi
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