Re: [PATCH] ACPI:remove panic in case hardware has changed after S4

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On Monday, July 15, 2013 01:34:27 PM Henrique de Moraes Holschuh wrote:
> On Mon, 15 Jul 2013, Oliver Neukum wrote:
> > On Monday 15 July 2013 12:06:11 Henrique de Moraes Holschuh wrote:
> > > On Mon, 15 Jul 2013, Thomas Renninger wrote:
> > > > I would not make it too complicated.
> > > > Sticking to the latest Windows version should be enough for this one.
> > > > What bad should happen if we still try to resume and fail...
> > > 
> > > Hmm, why was that check added in the first place?
> > 
> > Safety.
> > 
> > > If it is useless,
> > > removing it for good is fine.  If it is _not_ useless, we should still do
> > > the checking when not operating in windows-8 firmware mode.
> > 
> > Firmware will only be tested against Windows 8 pretty soon.
> > We'd end up with a gigantic list of exceptions.
> 
> No, we won't.  We can query the ACPI core for the OSI compatibility level
> requested by the firmware, and ignore the test only for win8.
> 
> We still have 10 to 15 years worth of users using non-win8 firmware boxes on
> x86/x86-64.

But what's the risk from removing the check exactly for those systems?

Rafael


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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