netdev - Re: [PATCH 2/2] net: ip, ipv6: handle gso skbs in forwarding path

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Message-ID: <20140127083606.GA30123@breakpoint.cc>
Date:	Mon, 27 Jan 2014 09:36:06 +0100
From:	Florian Westphal <fw@...len.de>
To:	David Miller <davem@...emloft.net>
Cc:	fw@...len.de, netdev@...r.kernel.org
Subject: Re: [PATCH 2/2] net: ip, ipv6: handle gso skbs in forwarding path

David Miller <davem@...emloft.net> wrote:
> From: Florian Westphal <fw@...len.de>
> Date: Mon, 27 Jan 2014 09:22:51 +0100
> > Changes since V2:
> >  - make this thing apply to current -net tree
> >  - kill unused variables in ip_forward/ip6_output
> 
> Still need changes.
> > +	return skb_gso_network_seglen(skb) > dst_mtu(skb_dst(skb));
> 
> You can't use dst_mtu() directly, in order to be consistent with the
> rest of the forwarding code in this file you must use something like:
> 
> >  	mtu = ip_dst_mtu_maybe_forward(&rt->dst, true);

You're right of course.

Sorry.  I will fix this up and NOT resend soon, its clear I need
to do more homework (aka follow Hannes PMTU changes).

Expect a V4 in a couple of hours.
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