linux-kernel - Re: [PATCH] WARN_ONCE(): use bool for condition

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Message-ID: <4ABFB524.5030008@cesarb.net>
Date:	Sun, 27 Sep 2009 15:55:32 -0300
From:	Cesar Eduardo Barros <cesarb@...arb.net>
To:	Daniel Walker <dwalker@...o99.com>
CC:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Roland Dreier <rolandd@...co.com>
Subject: Re: [PATCH] WARN_ONCE(): use bool for condition

Daniel Walker escreveu:
> On Sun, 2009-09-27 at 15:25 -0300, Cesar Eduardo Barros wrote:
>> -               int __ret_warn_on = !!(condition);                      \
>> +               bool __ret_warn_on = (condition);                       \
> 
> Did you try it without removing the "!!" ? In my original email I tested
> the path of least resistance, and I left the "!!" in there..

Just tried, same result (it seems gcc can easily see past the double 
negation).

-- 
Cesar Eduardo Barros
cesarb@...arb.net
cesar.barros@...il.com
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