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>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index f2d2faf4d9a..e5a3f588000 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