From: Neal Cardwell <ncardwell@google.com>
Date: Sun, 22 Apr 2012 09:45:47 +0000 (+0000)
Subject: tcp: fix TCP_MAXSEG for established IPv6 passive sockets
X-Git-Tag: v3.2.17~81
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=0d8421fee40cb7a579e3793957b6f74b259fb1b9;hp=0d8421fee40cb7a579e3793957b6f74b259fb1b9

tcp: fix TCP_MAXSEG for established IPv6 passive sockets

[ Upstream commit d135c522f1234f62e81be29cebdf59e9955139ad ]

Commit f5fff5d forgot to fix TCP_MAXSEG behavior IPv6 sockets, so IPv6
TCP server sockets that used TCP_MAXSEG would find that the advmss of
child sockets would be incorrect. This commit mirrors the advmss logic
from tcp_v4_syn_recv_sock in tcp_v6_syn_recv_sock. Eventually this
logic should probably be shared between IPv4 and IPv6, but this at
least fixes this issue.

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---