Ralf Baechle 966f4406d9 [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>

2006-03-18 16:59:28 +00:00

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