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xtensa: fix a6 and a7 handling in fast_syscall_xtensa
authorMax Filippov <jcmvbkbc@gmail.com>
Thu, 31 Jul 2014 18:40:57 +0000 (22:40 +0400)
committerMax Filippov <jcmvbkbc@gmail.com>
Thu, 14 Aug 2014 07:59:31 +0000 (11:59 +0400)
Remove restoring a6 on some return paths and instead modify and restore
it in a single place, using symbolic name.
Correctly restore a7 from PT_AREG7 in case of illegal a6 value.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
arch/xtensa/kernel/entry.S patch | blob | history

diff --cc arch/xtensa/kernel/entry.S
Simple merge
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