From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 15 Mar 2006 11:36:31 +0000 (+0000)
Subject: [MIPS] Work around bad code generation for <asm/io.h>.
X-Git-Tag: v2.6.16~2^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=966f4406d903a4214fdc74bec54710c6232a95b8;p=pandora-kernel.git

[MIPS] Work around bad code generation for <asm/io.h>.

If a call to set_io_port_base() was being followed by usage of
mips_io_port_base in the same function gcc was possibly using the old
value due to some clever abuse of const.  Adding a barrier will keep
the optimization and result in correct code with latest gcc.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

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