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powerpc: Add "memory" attribute for mfmsr()
authorTiejun Chen <tiejun.chen@windriver.com>
Wed, 11 Jul 2012 04:22:46 +0000 (14:22 +1000)
committerBen Hutchings <ben@decadent.org.uk>
Thu, 2 Aug 2012 13:37:46 +0000 (14:37 +0100)
commit b416c9a10baae6a177b4f9ee858b8d309542fbef upstream.

Add "memory" attribute in inline assembly language as a compiler
barrier to make sure 4.6.x GCC don't reorder mfmsr().

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

No differences found
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