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Message-Id: <200909261428.06802.bart.vanassche@gmail.com>
Date: Sat, 26 Sep 2009 14:28:06 +0200
From: Bart Van Assche <bart.vanassche@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Vegard Nossum <vegardno@....uio.no>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 2.6.31.1] include/linux/kmemcheck.h: fix a sparse warning
Checking a 2.6.31.1 kernel configured with allyesconfig/allmodconfig
with sparse (make C=2) triggers a sparse warning on code that uses the
kmemcheck_annotate_bitfield() macro. An example of such a warning:
include/net/inet_sock.h:208:17: warning: do-while statement is not a compound statement
Signed-off-by: Bart Van Assche <bart.vanassche@...il.com>
Cc: Vegard Nossum <vegardno@....uio.no>
Cc: Andrew Morton <akpm@...ux-foundation.org>
--- linux-2.6.31.1/include/linux/kmemcheck-orig.h 2009-09-26 13:53:44.000000000 +0200
+++ linux-2.6.31.1/include/linux/kmemcheck.h 2009-09-26 13:53:56.000000000 +0200
@@ -137,13 +137,13 @@ static inline void kmemcheck_mark_initia
int name##_end[0];
#define kmemcheck_annotate_bitfield(ptr, name) \
- do if (ptr) { \
+ do { if (ptr) { \
int _n = (long) &((ptr)->name##_end) \
- (long) &((ptr)->name##_begin); \
BUILD_BUG_ON(_n < 0); \
\
kmemcheck_mark_initialized(&((ptr)->name##_begin), _n); \
- } while (0)
+ } } while (0)
#define kmemcheck_annotate_variable(var) \
do { \
--
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