linux-kernel - Re: [PATCH] kmemcheck: fix sparse warning

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Date:	Mon, 06 Jul 2009 20:15:33 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Johannes Berg <johannes@...solutions.net>
CC:	Vegard Nossum <vegard.nossum@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kmemcheck: fix sparse warning

Johannes Berg wrote:
> Whether or not the sparse warning
> 
> warning: do-while statement is not a compound statement
> 
> is justified or not in this case, it is annoying and
> trivial to fix.
> 
> Signed-off-by: Johannes Berg <johannes@...solutions.net>

Looks good to me!

Acked-by: Pekka Enberg <penberg@...helsinki.fi>

> ---
>  include/linux/kmemcheck.h |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> --- wireless-testing.orig/include/linux/kmemcheck.h	2009-07-06 11:41:16.000000000 +0200
> +++ wireless-testing/include/linux/kmemcheck.h	2009-07-06 11:41:30.000000000 +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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