linux-kernel - Re: [PATCH 1/3] agp/intel: remove restore in resume

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Date:	Fri, 11 Sep 2009 09:03:42 +0800
From:	Zhenyu Wang <zhenyuw@...ux.intel.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	stable@...nel.org, stern@...land.harvard.edu
Subject: Re: [PATCH 1/3] agp/intel: remove restore in resume

On 2009.09.10 13:42:52 -0700, Andrew Morton wrote:
> On Fri,  4 Sep 2009 09:43:34 +0800
> Zhenyu Wang <zhenyuw@...ux.intel.com> wrote:
> 
> > As early pci resume has already restored config for host
> > bridge and graphics device, don't need to restore it again,
> > which might cause problem on some chips, like 845G tested by
> > Alan Stern.
> > 
> > Cc: Stable Team <stable@...nel.org>
> > Cc: Alan Stern <stern@...land.harvard.edu>
> > Signed-off-by: Zhenyu Wang <zhenyuw@...ux.intel.com>
> 
> Why were these patches cc'ed to stable@...nel.org?  There's nothing in
> the changelog which explains why the problem which is being fixed is
> sufficiently serious to warrant backporting the patch.

Sorry, Andrew. I wasn't awared that an earlier version of this patch
has already been merged, and this patch fixed resume issue on Alan's
845G, which was discussed on linux-pm list, I should have made more
clear note about that. We've also seen other resume failure bugs, which
might be relate to this one. So I think it should be fine for stable.

> 
> Was there a [patch 3/3]?  I didn't receive it.

sorry, my mistake, the 3/3 commit on my tree is not ready to send, 
forget to make git format-patch happy.

-- 
Open Source Technology Center, Intel ltd.

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