[PATCH:xf86-video-mga] Fix pointer cast warning.

[Thomas Klausner]

So what can we do to make this progress?
 Thomas

On Thu, Feb 26, 2015 at 02:59:49AM -0500, Connor Behan wrote:
> On 25/02/15 06:41 PM, Tormod Volden wrote:
> >> And then disable the DownloadFromScreen() implementation, or perhaps
> >> even disable EXA altogether.
> > If nobody can find the real problem that is maybe all that can be done.
> The fix should be:
> 
> char *src = pExa->memoryBase + exaGetPixmapOffset(pSrc);
> 
> When I first saw exaGetPixmapFirstPixel() in savage and mga, I assumed
> this was just a shorthand for the above. But evidently it's not. As for
> other broken EXA drivers, I don't have hardware to test but some basic
> suggestions are:
> 
> 1. Use the above instead of pPix->devPrivate.ptr.
> 2. Make all hooks start by verifying that pSrc is non-NULL.
> 3. Remove UTS / DFS hooks unless they actually do a DRM blit.
>