netdev - Re: [PATCH] route:ip_rt_frag_needed always return unzero

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Message-ID: <20111019083832.GT1830@secunet.com>
Date:	Wed, 19 Oct 2011 10:38:32 +0200
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	Gao feng <gaofeng@...fujitsu.com>
Cc:	Eric Dumazet <eric.dumazet@...il.com>, davem@...emloft.net,
	kuznet@....inr.ac.ru, jmorris@...ei.org, netdev@...r.kernel.org
Subject: Re: [PATCH] route:ip_rt_frag_needed always return unzero

On Wed, Oct 19, 2011 at 04:07:46PM +0800, Gao feng wrote:
> 2011.10.19 15:26, Steffen Klassert wrote:
> 
> > 
> > It is valid in the sense that we should not provide the user
> > with a mtu information if we know that the value we got from
> > the icmp packet ist bogus. But perhaps we can think about
> > making the check for a valid mtu unconditionally and let
> > ip_rt_frag_needed return a valid mtu in any case.
> > 
> > 
> 
> I think we should return the pmtu in icmp packet to the raw socket,
> and the valid mtu to tcp_v4_err or something else.
> 

Why you want to handle raw sockets different here?
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