linux-kernel - Re: [PATCH 26/37] drivers/net/wireless/ipw2x00: Use kmemdup

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Date:	Tue, 18 May 2010 09:26:52 +0800
From:	Zhu Yi <yi.zhu@...el.com>
To:	Julia Lawall <julia@...u.dk>
Cc:	"Chatre, Reinette" <reinette.chatre@...el.com>,
	Intel Linux Wireless <ilw@...ux.intel.com>,
	"John W. Linville" <linville@...driver.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH 26/37] drivers/net/wireless/ipw2x00: Use kmemdup

On Sun, 2010-05-16 at 05:21 +0800, Julia Lawall 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> 

Acked-by: Zhu Yi <yi.zhu@...el.com>

Thanks,
-yi

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