tcp: tcp_init_wl / tcp_update_wl argument cleanup

The above functions from include/net/tcp.h have been defined with an
argument that they never use. The argument is 'u32 ack' which is never
used inside the function body, and thus it can be removed. The rest of
the patch involves the necessary changes to the function callers of the
above two functions.

Signed-off-by: Hantzis Fotis <xantzis@ceid.upatras.gr>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 055e494..d74ac30 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -825,12 +825,12 @@
 	__tcp_push_pending_frames(sk, tcp_current_mss(sk, 1), tp->nonagle);
 }
 
-static inline void tcp_init_wl(struct tcp_sock *tp, u32 ack, u32 seq)
+static inline void tcp_init_wl(struct tcp_sock *tp, u32 seq)
 {
 	tp->snd_wl1 = seq;
 }
 
-static inline void tcp_update_wl(struct tcp_sock *tp, u32 ack, u32 seq)
+static inline void tcp_update_wl(struct tcp_sock *tp, u32 seq)
 {
 	tp->snd_wl1 = seq;
 }