Split switch, shift cases to the left, fix most lines beyond column 80.

Add error return.

Harmonize parameter order with other tcp_input functions:
tcp_fast_parse_options() and tcp_validate_incoming().

Harmonize initialization in syncookies.
Fix initialization in tcp_minisocks.

Repair net/ipv4/tcp_ipv4.c errors with goto targets, overlooked by
David Miller in commit bb5b7c11263dbbe78253cd05945a6bf8f55add8e

[updated to latest posted internet draft-simpson-tcpct-00]

Requires:
   TCPCT part 1g: Responder Cookie => Initiator
   net: tcp_header_len_th and tcp_option_len_th

Signed-off-by: William.Allen.Simpson@gmail.com
---
  include/net/tcp.h        |    5 +-
  net/ipv4/syncookies.c    |    9 +-
  net/ipv4/tcp_input.c     |  238 +++++++++++++++++++++++++++-------------------
  net/ipv4/tcp_ipv4.c      |   10 ++-
  net/ipv4/tcp_minisocks.c |   26 ++++--
  net/ipv6/syncookies.c    |    9 +-
  net/ipv6/tcp_ipv6.c      |    6 +-
  7 files changed, 185 insertions(+), 118 deletions(-)