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Date:	Tue, 21 Oct 2014 21:42:52 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	roy.qing.li@...il.com
Cc:	netdev@...r.kernel.org, steffen.klassert@...unet.com
Subject: Re: [PATCH 1/2] xfrm: fix a potential use after free in
 xfrm4_policy.c

From: roy.qing.li@...il.com
Date: Mon, 20 Oct 2014 16:49:13 +0800

> From: Li RongQing <roy.qing.li@...il.com>
> 
> pskb_may_pull() maybe change skb->data and make xprth pointer oboslete,
> so recompute the xprth
> 
> Signed-off-by: Li RongQing <roy.qing.li@...il.com>

Please don't use macros that hide uses of local variables.

That is almost as bad as hiding control flow inside of
a macro.
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