linux-kernel - Re: [PATCH 23/37] drivers/s390/char: Use kmemdup

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Message-ID: <20100517122332.04cfa06a@mschwide.boeblingen.de.ibm.com>
Date:	Mon, 17 May 2010 12:23:32 +0200
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Julia Lawall <julia@...u.dk>
Cc:	Heiko Carstens <heiko.carstens@...ibm.com>, linux390@...ibm.com,
	linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 23/37] drivers/s390/char: Use kmemdup

On Sat, 15 May 2010 23:20:07 +0200 (CEST)
Julia Lawall <julia@...u.dk> wrote:

> From: Julia Lawall <julia@...u.dk>
> 
> Use kmemdup when some other buffer is immediately copied into the
> allocated region.
> 
> A simplified version of the semantic patch that makes this change is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression from,to,size,flag;
> statement S;
> @@
> 
> -  to = \(kmalloc\|kzalloc\)(size,flag);
> +  to = kmemdup(from,size,flag);
>    if (to==NULL || ...) S
> -  memcpy(to, from, size);
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@...u.dk>

Added to git390 as well, thanks again.

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

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