netdev - Re: [PATCH ipsec 1/2] xfrm: revert ipv4 mtu determination to dst

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Message-ID: <20130827092221.GA7660@secunet.com>
Date:	Tue, 27 Aug 2013 11:22:21 +0200
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH ipsec 1/2] xfrm: revert ipv4 mtu determination to dst_mtu

On Mon, Aug 26, 2013 at 12:31:19PM +0200, Hannes Frederic Sowa wrote:
> In commit 0ea9d5e3e0e03a63b11392f5613378977dae7eca ("xfrm: introduce
> helper for safe determination of mtu") I switched the determination of
> ipv4 mtus from dst_mtu to ip_skb_dst_mtu. This was an error because in
> case of IP_PMTUDISC_PROBE we fall back to the interface mtu, which is
> never correct for ipv4 ipsec.
> 
> This patch partly reverts 0ea9d5e3e0e03a63b11392f5613378977dae7eca
> ("xfrm: introduce helper for safe determination of mtu").
> 
> Cc: Steffen Klassert <steffen.klassert@...unet.com>
> Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Applied to ipsec.
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