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| 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 /Documentation/filesystems/configfs/configfs_example.c | |
| parent | [POWERPC] pasemi: update pasemi_defconfig, enable electra_cf (diff) | |
| download | linux-dev-cfab3bdf8292edec19492c89520b1ad11279a648.tar.xz linux-dev-cfab3bdf8292edec19492c89520b1ad11279a648.zip | |
[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 'Documentation/filesystems/configfs/configfs_example.c')
0 files changed, 0 insertions, 0 deletions