From: David Daney <david.daney@cavium.com>
Date: Thu, 25 Apr 2013 15:48:53 +0000 (+0000)
Subject: MIPS: Remove redundant instructions from arch_spin_{,try}lock.
X-Git-Tag: v3.10-rc1~15^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d39019a1655d195a60a86ebf38f9da30bd83d03;p=pandora-kernel.git

MIPS: Remove redundant instructions from arch_spin_{,try}lock.

We were doing:
   SRL  $r,$?,16
   ANDI $r,$r,0xffff

The logical right shift by 16 leaves the upper 16 bits clear, so the
subsequent masking out of those bits is redundant, and can safely be
removed.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

Reading git-diff-tree failed