From: Daniel Santos <daniel.santos@pobox.com>
Date: Thu, 7 Feb 2013 01:25:45 +0000 (+1100)
Subject: bug.h: Fix BUILD_BUG_ON macro in __CHECKER__
X-Git-Tag: next-20130218~1^2~576
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3856477841a0b0ac3ca58bfc88bf420a6ec97b4f;p=karo-tx-linux.git

bug.h: Fix BUILD_BUG_ON macro in __CHECKER__

When __CHECKER__ is defined, we disable all of the BUILD_BUG.* macros.
However, both BUILD_BUG_ON_NOT_POWER_OF_2 and BUILD_BUG_ON was evaluating
to nothing in this case, and we want (0) since this is a function-like
macro that will be followed by a semicolon.

Signed-off-by: Daniel Santos <daniel.santos@pobox.com>
Acked-by: Borislav Petkov <bp@alien8.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Joe Perches <joe@perches.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/include/linux/bug.h b/include/linux/bug.h
index 2a11774c5e64..27d404f91b3e 100644
--- a/include/linux/bug.h
+++ b/include/linux/bug.h
@@ -12,11 +12,11 @@ enum bug_trap_type {
 struct pt_regs;
 
 #ifdef __CHECKER__
-#define BUILD_BUG_ON_NOT_POWER_OF_2(n)
+#define BUILD_BUG_ON_NOT_POWER_OF_2(n) (0)
 #define BUILD_BUG_ON_ZERO(e) (0)
 #define BUILD_BUG_ON_NULL(e) ((void*)0)
 #define BUILD_BUG_ON_INVALID(e) (0)
-#define BUILD_BUG_ON(condition)
+#define BUILD_BUG_ON(condition) (0)
 #define BUILD_BUG() (0)
 #else /* __CHECKER__ */