From: Will Deacon <will.deacon@arm.com>
Date: Wed, 4 Sep 2013 10:34:08 +0000 (+0100)
Subject: sparc: io: implement dummy relaxed accessor macros for writes
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~8^2~2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1191ccb34cf810a0fefaaf5ca3cfe3c5d7675927;p=pandora-kernel.git

sparc: io: implement dummy relaxed accessor macros for writes

write{b,w,l,q}_relaxed are implemented by some architectures in order to
permit memory-mapped I/O accesses with weaker barrier semantics than the
non-relaxed variants.

This patch adds dummy macros for the write accessors to sparc, in the
same vein as the dummy definitions for the relaxed read accessors. The
existing relaxed read{b,w,l} accessors are moved into asm/io.h, since
they are identical between 32-bit and 64-bit machines.

Acked-by: "David S. Miller" <davem@davemloft.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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