Add ability to use variant defconfig for device differences

and use shared defconfig

Change-Id: Ie49e84a54e9758a661edfde6076ec0fc0929c047
defconfig: Update per http://source.android.com/devices/tech/kernel.html

Change-Id: I4ea1a4056f5c7824e2d0c41c5cf2834480edd7ad
perf: Treat attr.config as u64 in perf_swevent_init()

commit 8176cced706b5e5d15887584150764894e94e02f upstream.

Trinity discovered that we fail to check all 64 bits of
attr.config passed by user space, resulting to out-of-bounds
access of the perf_swevent_enabled array in
sw_perf_event_destroy().

Introduced in commit b0a873ebb ("perf: Register PMU
implementations").

Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: davej@redhat.com
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/1365882554-30259-1-git-send-email-tt.rantala@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

Change-Id: Ie966108d220da41db0ee294fdea395c8a941565b
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_kernel_motorola_omap4-common into cm-10.1