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authorMike Waychison <mikew@google.com>2011-02-26 02:41:49 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2011-02-26 03:10:03 +0300
commit66245ad025e02fe9e727c03d43308bb24e346bb6 (patch)
tree9597235bf126cde0d4d5e0a6d51a58bcbe8d15ca /Documentation/zh_CN
parent9effd8221fc109e5d33e417e3eaaf8e475003e2d (diff)
downloadlinux-66245ad025e02fe9e727c03d43308bb24e346bb6.tar.xz
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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