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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-05-28 10:18:17 +1000
committerPaul Mackerras <paulus@samba.org>2008-05-31 17:08:28 +1000
commitcfab3bdf8292edec19492c89520b1ad11279a648 (patch)
treedbc3ed8bf7173b102bf844ed8121941b0b2303d8 /arch/ppc
parent732bee4c859012edf05f3e09b53b68fc332a369d (diff)
[POWERPC] Add "memory" clobber to MMIO accessors
Gcc might re-order MMIO accessors vs. surrounding consistent memory accesses, which is a "bad thing", and could break drivers. This fixes it by adding a "memory" clobber to the MMIO accessors, which should prevent gcc from doing that reordering. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc')
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