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(parent: 66a9a4f) | patch
[MIPS] Work around bad code generation for <asm/io.h>.
authorRalf Baechle <ralf@linux-mips.org>
Wed, 15 Mar 2006 11:36:31 +0000 (11:36 +0000)
committerRalf Baechle <ralf@linux-mips.org>
Sat, 18 Mar 2006 16:59:28 +0000 (16:59 +0000)
commit966f4406d903a4214fdc74bec54710c6232a95b8
tree20d7f57eae99fe83b8fbdae112a6a0facc5b552dtree | snapshot (tar.gz zip)
parent66a9a4ffda3474b193f36ed579cee06c597952f3commit | diff
[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>
include/asm-mips/io.h diff | blob | blame | history