From: Mike Waychison <mikew@google.com>
Date: Fri, 25 Feb 2011 23:41:49 +0000 (-0800)
Subject: firmware: Fix unaligned memory accesses in dmi-sysfs
X-Git-Tag: v2.6.39-rc1~471^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66245ad025e02fe9e727c03d43308bb24e346bb6;p=pandora-kernel.git

firmware: Fix unaligned memory accesses in dmi-sysfs

DMI entries are arranged in memory back to back with no alignment
guarantees. This means that the struct dmi_header passed to callbacks
from dmi_walk() itself isn't byte aligned.  This causes problems on
architectures that expect aligned data, such as IA64.

The dmi-sysfs patchset introduced structure member accesses through this
passed in dmi_header.  Fix this by memcpy()ing the structures to
temporary locations on stack when inspecting/copying them.

Signed-off-by: Mike Waychison <mikew@google.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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