netdev - Re: [PATCH] vlan: Fix the b0rked ingress VLAN_FLAG_REORDER

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Message-Id: <20110524.022406.2228892895515155850.davem@davemloft.net>
Date:	Tue, 24 May 2011 02:24:06 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	ebiederm@...ssion.com
Cc:	shemminger@...ux-foundation.org, greearb@...delatech.com,
	nicolas.2p.debian@...il.com, jpirko@...hat.com, xiaosuo@...il.com,
	netdev@...r.kernel.org, kaber@...sh.net, fubar@...ibm.com,
	eric.dumazet@...il.com, andy@...yhouse.net, jesse@...ira.com
Subject: Re: [PATCH] vlan: Fix the b0rked ingress VLAN_FLAG_REORDER_HDR
 check.

From: ebiederm@...ssion.com (Eric W. Biederman)
Date: Mon, 23 May 2011 23:18:02 -0700

> Feel free to read through the code, to convince yourself it is correct.
> In addition the code is untouched from the vlan header insertion for
> emulation of vlan header acceleration in dev_hard_start_xmit() which
> presumably has been working for quite awhile.

I'm not keeping code there that does eth_hdr(skb)->foo when there
can be either a vlan_hdr(skb) or a eth_hdr(skb) there.

That's just asking for trouble.
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