commit aa27fc501850030fb5d1ee705feb836ee6a21f2a
author Octavian Purdila <octavian.purdila@intel.com> Wed Jun 25 17:09:51 2014 +0300
committer David S. Miller <davem@davemloft.net> Fri Jun 27 15:53:35 2014 -0700
tree b91842d21980aa13fb980dcf0891ced53a342738
parent 57b47553f65e12e2e4f1608168374b0e651de843

tcp: tcp_v[46]_conn_request: fix snt_synack initialization

Commit 016818d07 (tcp: TCP Fast Open Server - take SYNACK RTT after
completing 3WHS) changes the code to only take a snt_synack timestamp
when a SYNACK transmit or retransmit succeeds. This behaviour is later
broken by commit 843f4a55e (tcp: use tcp_v4_send_synack on first
SYN-ACK), as snt_synack is now updated even if tcp_v4_send_synack
fails.

Also, commit 3a19ce0ee (tcp: IPv6 support for fastopen server) misses
the required IPv6 updates for 016818d07.

This patch makes sure that snt_synack is updated only when the SYNACK
trasnmit/retransmit succeeds, for both IPv4 and IPv6.

Cc: Cardwell <ncardwell@google.com>
Cc: Daniel Lee <longinus00@gmail.com>
Cc: Yuchung Cheng <ycheng@google.com>

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>