[ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops

And move it to struct inet_connection_sock. DCCP will use it in the
upcoming changesets.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ef98b14..eacfe6a 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1696,8 +1696,8 @@
 	int err = 0;
 
 	if (level != SOL_TCP)
-		return tp->af_specific->setsockopt(sk, level, optname,
-						   optval, optlen);
+		return icsk->icsk_af_ops->setsockopt(sk, level, optname,
+						     optval, optlen);
 
 	/* This is a string value all the others are int's */
 	if (optname == TCP_CONGESTION) {
@@ -1939,8 +1939,8 @@
 	int val, len;
 
 	if (level != SOL_TCP)
-		return tp->af_specific->getsockopt(sk, level, optname,
-						   optval, optlen);
+		return icsk->icsk_af_ops->getsockopt(sk, level, optname,
+						     optval, optlen);
 
 	if (get_user(len, optlen))
 		return -EFAULT;