From: Andrew Morton <akpm@linux-foundation.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Wu Fengguang <wfg@linux.intel.com>, L-K <linux-kernel@vger.kernel.org>
Subject: Re: generic swap()
Date: Fri, 16 Jan 2009 01:38:34 -0800 [thread overview]
Message-ID: <20090116013834.539c692e.akpm@linux-foundation.org> (raw)
In-Reply-To: <1232097994.14073.4.camel@laptop>
On Fri, 16 Jan 2009 10:26:34 +0100 Peter Zijlstra <peterz@infradead.org> wrote:
> Hi,
>
> Where did this patch come from? -- I can't seem to find it on lkml at all..
That's a damn good question. I received:
From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 0/9] [PATCH] make swap() a global macro
Date: Tue, 02 Dec 2008 19:45:24 +0800
User-Agent: quilt/0.46-1
but the cc didn't seem to work. quilt bustage?
> The reason I ask it that I wonder why swap() has a return value?
Accident, I guess.
> +#define swap(a, b) ({ typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; })
You think it should use the do{}while(0) thing?
next prev parent reply other threads:[~2009-01-16 9:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-16 9:26 generic swap() Peter Zijlstra
2009-01-16 9:38 ` Andrew Morton [this message]
2009-01-16 9:45 ` Peter Zijlstra
2009-02-06 1:26 ` Wu Fengguang
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