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Date: Sat, 28 Apr 2007 00:03:30 -0700
From: Jeremy Fitzhardinge <jeremy@goop.org>
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To: bbpetkov@yahoo.de
CC: Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org,
       Jeremy Fitzhardinge <jeremy@xensource.com>
Subject: Re: [PATCH] mm/memory.c: remove warning from an uninitialized spinlock.
 was: Re: 2.6.21-rc7-mm2
References: <20070425225716.8e9b28ca.akpm@linux-foundation.org> <20070426182519.GA4532@gollum.tnic> <20070427172230.94b82829.akpm@linux-foundation.org> <20070428055740.GA4957@gollum.tnic> <20070428062516.GB4957@gollum.tnic>
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Borislav Petkov wrote:
> Sorry, no such thing in the docs to do
>
> spinlock_t __attribute__((__uninitialized__)) *ptl;
>
> in order to suppress warnings. But if function size is our concern here, even
> shorter would be:
>   

asm("" : "=rm" (ptl)) would do the job, I think, but it's pretty ugly
syntactically.

    J