From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next] tcp: be more strict before accepting ECN
 negociation
Date: Fri, 04 May 2012 12:06:50 -0400 (EDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 04 May 2012 17:14:02 +0200

> From: Eric Dumazet <edumazet@google.com>
> 
> It appears some networks play bad games with the two bits reserved for
> ECN. This can trigger false congestion notifications and very slow
> transferts.
> 
> Since RFC 3168 (6.1.1) forbids SYN packets to carry CT bits, we can
> disable TCP ECN negociation if it happens we receive mangled CT bits in
> the SYN packet.
> 
> Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied.