linux-kernel - Re: [RFC/PATCH] doc: volatile considered evil

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Message-ID: <4640E62D.8060704@goop.org>
Date:	Tue, 08 May 2007 14:05:49 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Krzysztof Halasa <khc@...waw.pl>
CC:	David Rientjes <rientjes@...gle.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Sokolovsky <pmiscml@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC/PATCH] doc: volatile considered evil

Krzysztof Halasa wrote:
> David Rientjes <rientjes@...gle.com> writes:
>
>   
>> Since 'volatile' has two different semantics depending on the context in 
>> which it is used, this warning should be appended to include the fact that 
>> it is legitimate to use for inline assembly.
>>     
>
> I think it hasn't two semantics, it's like arguing that char has two
> semantics.
>   

No, David means that "asm volatile (...)" is meaningful and OK to use.

    J
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