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| author | Tejun Heo <tj@kernel.org> | 2011-05-02 14:08:43 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-05-02 14:08:47 +0200 |
| commit | aff364860aa105b2deacc6f21ec8ef524460e3fc (patch) | |
| tree | 18409ebe16b25b141598da9b6386d69416c06afa /include/asm-generic/bug.h | |
| parent | c7a7b814c9dca9ee01b38e63b4a46de87156d3b6 (diff) | |
| parent | 993ba1585cbb03fab012e41d1a5d24330a283b31 (diff) | |
| download | kernel_replicant_linux-aff364860aa105b2deacc6f21ec8ef524460e3fc.tar.gz kernel_replicant_linux-aff364860aa105b2deacc6f21ec8ef524460e3fc.tar.bz2 kernel_replicant_linux-aff364860aa105b2deacc6f21ec8ef524460e3fc.zip | |
Merge branch 'x86/numa' into x86-mm
Merge reason: Pick up x86-32 remap allocator cleanup changes - 14
commits, 3fe14ab541^..993ba1585c.
3fe14ab541: x86-32, numa: Fix failure condition check in alloc_remap()
993ba1585c: x86-32, numa: Update remap allocator comments
Scheduled NUMA init 32/64bit unification changes depend on them.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/asm-generic/bug.h')
| -rw-r--r-- | include/asm-generic/bug.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index f2d2faf4d9ae..e5a3f5880001 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -194,6 +194,13 @@ extern void warn_slowpath_null(const char *file, const int line); #ifdef CONFIG_SMP # define WARN_ON_SMP(x) WARN_ON(x) #else +/* + * Use of ({0;}) because WARN_ON_SMP(x) may be used either as + * a stand alone line statement or as a condition in an if () + * statement. + * A simple "0" would cause gcc to give a "statement has no effect" + * warning. + */ # define WARN_ON_SMP(x) ({0;}) #endif |