TCPCT part 1a: add request_values 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.

Also affects DCCP as it uses common struct request_sock_ops,
but this parameter is currently reserved for future use.

Signed-off-by: William.Allen.Simpson@gmail.com
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 325bfcf5c934..ec183fda05d0 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -440,7 +440,8 @@ extern int			tcp_connect(struct sock *sk);
 
 extern struct sk_buff *         tcp_make_synack(struct sock *sk,
                                                 struct dst_entry *dst,
-                                                struct request_sock *req);
+                                                struct request_sock *req,
+                                                struct request_values *rvp);
 
 extern int                      tcp_disconnect(struct sock *sk, int flags);