[Intel-gfx] [PATCH] Make DGA optional

[Keith Packard]

On Wed, 2009-09-16 at 15:33 +0800, Zhenyu Wang wrote:

> Keith, are you ok with this one?

Sadly, we can't actually fix this in the driver -- anything we return
will get passed back to the application which will then happily mmap
that and start drawing on it. Worse yet, the application need not even
have root access as the server will create a pixmap pointing at that
memory and paint all over it in response to client rendering requests.

I've posted a patch to the X server which removes all of the rendering
capability from the DGA extension. That can be applied on the 1.6 branch
as well.

-keith

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