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Message-ID: <1301077163.14261.199.camel@gandalf.stny.rr.com>
Date: Fri, 25 Mar 2011 14:19:23 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
dvhart@...ux.intel.com, peterz@...radead.org,
akpm@...ux-foundation.org, srostedt@...hat.com, tglx@...utronix.de,
laijs@...fujitsu.com, mingo@...e.hu,
linux-tip-commits@...r.kernel.org
Subject: Re: [tip:core/urgent] WARN_ON_SMP(): Allow use in if() statements
on UP
On Fri, 2011-03-25 at 14:16 -0400, Steven Rostedt wrote:
> Also, a quick test shows that
>
> 0;
>
> gives the warning:
>
> "warning: statement with no effect"
Would you like me to add a comment that states:
/*
* Use ({0;}) as just "0" will cause gcc to output:
* warning: statement with no effect
*/
-- Steve
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