[net-next-2.6 PATCH 1/4 resent] TCPCT part 1a: add function parameter for sending SYNACK

Add optional function parameters associated with sending SYNACK.
These parameters are not needed after sending SYNACK, and are not
used for retransmission.  Avoids extending struct tcp_request_sock,
and avoids allocating kernel memory.

Only affects DCCP as it also uses common struct request_sock_ops,
but this void parameter is currently reserved for future use.
---
   include/net/request_sock.h      |    3 ++-
   include/net/tcp.h               |    3 ++-
   net/dccp/ipv4.c                 |    5 +++--
   net/dccp/ipv6.c                 |    5 +++--
   net/dccp/minisocks.c            |    2 +-
   net/ipv4/inet_connection_sock.c |    2 +-
   net/ipv4/tcp_ipv4.c             |   12 +++++++-----
   net/ipv4/tcp_minisocks.c        |    2 +-
   net/ipv4/tcp_output.c           |    2 +-
   net/ipv6/tcp_ipv6.c             |   14 +++++++-------
   10 files changed, 28 insertions(+), 22 deletions(-)