From: Mark Salter <msalter@redhat.com>
Date: Tue, 9 Apr 2013 19:35:46 +0000 (-0400)
Subject: add memory barrier to arch_local_irq_restore
X-Git-Tag: v3.9-rc7~27^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f934af05cb1bf20558542185299394a69060b829;p=pandora-kernel.git

add memory barrier to arch_local_irq_restore

arch_local_irq_save() and friends are required to act as compiler
memory barriers. This patch adds a "memory" clobber to the inline
asm code in arch_local_irq_restore() which is used as the building
block for other functions needing to set/clear the interrupt enable
in the CSR register.

Signed-off-by: Mark Salter <msalter@redhat.com>
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