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* PATCH tcp_init_wl / tcp_update_wl argument cleanup
@ 2009-03-01 10:37 ithilgore.ryu.L@gmail.com
  2009-03-02 11:14 ` David Miller
  0 siblings, 1 reply; 4+ messages in thread
From: ithilgore.ryu.L@gmail.com @ 2009-03-01 10:37 UTC (permalink / raw)
  To: netdev

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.



--- /net/ipv4/orig.tcp_minisocks.c	2009-02-21 21:26:07.000000000 +0200
+++ /net/ipv4/tcp_minisocks.c	2009-02-21 21:26:22.000000000 +0200
@@ -399,7 +399,7 @@

 		tcp_prequeue_init(newtp);

-		tcp_init_wl(newtp, treq->snt_isn, treq->rcv_isn);
+		tcp_init_wl(newtp, treq->rcv_isn);

 		newtp->srtt = 0;
 		newtp->mdev = TCP_TIMEOUT_INIT;
--- /net/ipv4/orig.tcp_input.c	2009-02-21 21:26:36.000000000 +0200
+++ /net/ipv4/tcp_input.c	2009-02-21 21:27:41.000000000 +0200
@@ -3072,7 +3072,7 @@

 	if (tcp_may_update_window(tp, ack, ack_seq, nwin)) {
 		flag |= FLAG_WIN_UPDATE;
-		tcp_update_wl(tp, ack, ack_seq);
+		tcp_update_wl(tp, ack_seq);

 		if (tp->snd_wnd != nwin) {
 			tp->snd_wnd = nwin;
@@ -3277,7 +3277,7 @@
 		 * No more checks are required.
 		 * Note, we use the fact that SND.UNA>=SND.WL2.
 		 */
-		tcp_update_wl(tp, ack, ack_seq);
+		tcp_update_wl(tp, ack_seq);
 		tp->snd_una = ack;
 		flag |= FLAG_WIN_UPDATE;

@@ -5085,7 +5085,7 @@
 		 * never scaled.
 		 */
 		tp->snd_wnd = ntohs(th->window);
-		tcp_init_wl(tp, TCP_SKB_CB(skb)->ack_seq, TCP_SKB_CB(skb)->seq);
+		tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);

 		if (!tp->rx_opt.wscale_ok) {
 			tp->rx_opt.snd_wscale = tp->rx_opt.rcv_wscale = 0;
@@ -5346,8 +5346,7 @@
 				tp->snd_una = TCP_SKB_CB(skb)->ack_seq;
 				tp->snd_wnd = ntohs(th->window) <<
 					      tp->rx_opt.snd_wscale;
-				tcp_init_wl(tp, TCP_SKB_CB(skb)->ack_seq,
-					    TCP_SKB_CB(skb)->seq);
+				tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);

 				/* tcp_ack considers this ACK as duplicate
 				 * and does not calculate rtt.
--- net/ipv4/orig.tcp_output.c	2009-02-21 21:28:11.000000000 +0200
+++ net/ipv4/tcp_output.c	2009-02-21 21:28:34.000000000 +0200
@@ -2373,7 +2373,7 @@
 	sk->sk_err = 0;
 	sock_reset_flag(sk, SOCK_DONE);
 	tp->snd_wnd = 0;
-	tcp_init_wl(tp, tp->write_seq, 0);
+	tcp_init_wl(tp, 0);
 	tp->snd_una = tp->write_seq;
 	tp->snd_sml = tp->write_seq;
 	tp->snd_up = tp->write_seq;
--- include/net/orig.tcp.h	2009-02-21 21:23:21.000000000 +0200
+++ include/net/tcp.h	2009-02-21 21:23:49.000000000 +0200
@@ -829,12 +829,12 @@
 	__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;
 }


--
ithilgore

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2009-03-03  6:43 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-03-01 10:37 PATCH tcp_init_wl / tcp_update_wl argument cleanup ithilgore.ryu.L@gmail.com
2009-03-02 11:14 ` David Miller
2009-03-02 17:57   ` Hantzis Fotis
2009-03-03  6:43     ` David Miller

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