From: David Miller <davem@davemloft.net>
Date: Wed, 18 Feb 2009 09:35:23 +0000 (-0800)
Subject: drm: radeon: Fix unaligned access in r300_scratch().
X-Git-Tag: v2.6.30-rc1~613^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=958a6f8ccb1964adc3eec84cf401c5baeb4fbca0;p=pandora-kernel.git

drm: radeon: Fix unaligned access in r300_scratch().

In compat mode, the cmdbuf->buf 64-bit address cookie can
potentially be only 32-bit aligned.  Dereferencing this as
64-bit causes expensive unaligned traps on platforms like
sparc64.

Use get_unaligned() to fix.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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