tree 2cb00c49b848ffeb4723e9237b9f1e92e49f2514
parent 28b78eb401b7e60c0984eacf3837cf09a2307253
author Neal Cardwell <ncardwell@google.com> 1335087947 +0000
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1335545481 -0700

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>