netdev - Re: [PATCH net v3 2/2] ip6_udp_tunnel: remove unused IPCB related codes

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Date:   Wed, 02 Nov 2016 15:19:29 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     elicooper@....com
Cc:     netdev@...r.kernel.org, shmulik.ladkani@...il.com,
        tom@...bertland.com
Subject: Re: [PATCH net v3 2/2] ip6_udp_tunnel: remove unused IPCB related
 codes

From: Eli Cooper <elicooper@....com>
Date: Tue,  1 Nov 2016 23:45:13 +0800

> Some IPCB fields are currently set in udp_tunnel6_xmit_skb(), which are
> never used before it reaches ip6tunnel_xmit(), and past that point the
> control buffer is no longer interpreted as IPCB.
> 
> This clears these unused IPCB related codes. Currently there is no skb
> scrubbing in ip6_udp_tunnel, otherwise IPCB(skb)->opt might need to be
> cleared for IPv4 packets, as shown in 5146d1f1511
> ("tunnel: Clear IPCB(skb)->opt before dst_link_failure called").
> 
> Signed-off-by: Eli Cooper <elicooper@....com>

Applied.