Re: 6175ddf06b6172046a329e3abfd9c901a43efd2e breaks matroxfb console

From: H. Peter Anvin
Date: Mon Aug 02 2010 - 17:05:24 EST

On 08/02/2010 12:49 PM, Ondrej Zary wrote:
> Hello,
> matroxfb (at least with Mystique and Mystique 220) stopped working in 2.6.34 -
> the screen is completely corrupted. Bisection shows that
> 6175ddf06b6172046a329e3abfd9c901a43efd2e is first bad commit.
> Reverting 6175ddf06b6172046a329e3abfd9c901a43efd2e in 2.6.34 fixes the problem
> (1c5b9069e12e20d2fe883076ae0bf73966492108 must be reverted first).

Sounds like another driver which used memcpy_toio() when it should have
used iowrite32_rep() or __iowrite32_copy().

Hmm... is __iowrite32_copy() and iowrite32_rep() redundant? If so, we
should get rid of the former.


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