From: Alexey Dobriyan <adobriyan@sw.ru>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] Fix sparse false positives re BUG_ON(ptr)
Date: Fri, 13 Jul 2007 14:21:12 +0400 [thread overview]
Message-ID: <20070713102111.GA11046@localhost.sw.ru> (raw)
sparse now warns if one compares pointers with integers. However, there are
false positives, like:
fs/filesystems.c:72:2: warning: Using plain integer as NULL pointer
Every time BUG_ON(ptr) is used, ptr is checked against integer zero. Avoid that
and save ~70 false positives from allyesconfig run.
mentioned by Al.
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
---
include/asm-generic/bug.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -28,7 +28,7 @@ struct bug_entry {
#endif
#ifndef HAVE_ARCH_BUG_ON
-#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
+#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0)
#endif
#ifndef HAVE_ARCH_WARN_ON
reply other threads:[~2007-07-13 10:21 UTC|newest]
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