diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-05-28 10:18:17 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-05-31 17:08:28 +1000 |
| commit | cfab3bdf8292edec19492c89520b1ad11279a648 (patch) | |
| tree | dbc3ed8bf7173b102bf844ed8121941b0b2303d8 /arch/powerpc/boot/oflib.c | |
| parent | 732bee4c859012edf05f3e09b53b68fc332a369d (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/powerpc/boot/oflib.c')
0 files changed, 0 insertions, 0 deletions