linux-kernel - Re: memset as memzero

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Message-ID: <20070922124659.741cca42@laptopd505.fenrus.org>
Date:	Sat, 22 Sep 2007 12:46:59 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Cyrill Gorcunov <gorcunov@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: memset as memzero

On Sat, 22 Sep 2007 12:33:55 +0400
Cyrill Gorcunov <gorcunov@...il.com> wrote:

> Hi list,
> 
> could anyone tell me why there is no official memzero function (or
> macros) in the kernel.

it doesn't add value.... memset with a constant 0 is just as fast
(since the compiler knows it's 0) than any wrapper around it, and the
syntax around it is otherwise the same.


> As I see a lot of  kernel parts calls for it
> (defying own macros as alias to memset). Maybe there is a special
> reason not to do so? Actually my suggestion is to define _one_
> general macros for this.

my suggestion is to nuke all the macros and just use memset().

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