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authorJoe Perches <joe@perches.com>2013-05-24 22:36:13 +0400
committerDavid S. Miller <davem@davemloft.net>2013-05-26 10:22:18 +0400
commit61eb900352ff731d990d5415ce9f04e4af6a6136 (patch)
tree1e2e4e18bf6ad79e7c9b7c9ec59b736ec86468b6 /net/ipv4
parent1f6afc81088a1f5a472b272408730c73b72c68aa (diff)
downloadlinux-61eb900352ff731d990d5415ce9f04e4af6a6136.tar.xz
tcp: Remove another indentation level in tcp_rcv_state_process
case TCP_SYN_RECV: can have another indentation level removed by converting if (acceptable) { ...; } else { return 1; } to if (!acceptable) return 1; ...; Reflow code and comments to fit 80 columns. Another pure cleanup patch. Signed-off-by: Joe Perches <joe@perches.com> Improved-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/tcp_input.c110
1 files changed, 51 insertions, 59 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 40614257d2c5..413b480b9329 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5612,70 +5612,62 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
switch (sk->sk_state) {
case TCP_SYN_RECV:
- if (acceptable) {
- /* Once we leave TCP_SYN_RECV, we no longer
- * need req so release it.
- */
- if (req) {
- tcp_synack_rtt_meas(sk, req);
- tp->total_retrans = req->num_retrans;
+ if (!acceptable)
+ return 1;
- reqsk_fastopen_remove(sk, req, false);
- } else {
- /* Make sure socket is routed, for
- * correct metrics.
- */
- icsk->icsk_af_ops->rebuild_header(sk);
- tcp_init_congestion_control(sk);
+ /* Once we leave TCP_SYN_RECV, we no longer need req
+ * so release it.
+ */
+ if (req) {
+ tcp_synack_rtt_meas(sk, req);
+ tp->total_retrans = req->num_retrans;
- tcp_mtup_init(sk);
- tcp_init_buffer_space(sk);
- tp->copied_seq = tp->rcv_nxt;
- }
- smp_mb();
- tcp_set_state(sk, TCP_ESTABLISHED);
- sk->sk_state_change(sk);
-
- /* Note, that this wakeup is only for marginal
- * crossed SYN case. Passively open sockets
- * are not waked up, because sk->sk_sleep ==
- * NULL and sk->sk_socket == NULL.
- */
- if (sk->sk_socket)
- sk_wake_async(sk, SOCK_WAKE_IO, POLL_OUT);
-
- 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)->seq);
-
- if (tp->rx_opt.tstamp_ok)
- tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
-
- if (req) {
- /* Re-arm the timer because data may
- * have been sent out. This is similar
- * to the regular data transmission case
- * when new data has just been ack'ed.
- *
- * (TFO) - we could try to be more aggressive
- * and retransmitting any data sooner based
- * on when they are sent out.
- */
- tcp_rearm_rto(sk);
- } else
- tcp_init_metrics(sk);
+ reqsk_fastopen_remove(sk, req, false);
+ } else {
+ /* Make sure socket is routed, for correct metrics. */
+ icsk->icsk_af_ops->rebuild_header(sk);
+ tcp_init_congestion_control(sk);
+
+ tcp_mtup_init(sk);
+ tcp_init_buffer_space(sk);
+ tp->copied_seq = tp->rcv_nxt;
+ }
+ smp_mb();
+ tcp_set_state(sk, TCP_ESTABLISHED);
+ sk->sk_state_change(sk);
- /* Prevent spurious tcp_cwnd_restart() on
- * first data packet.
+ /* Note, that this wakeup is only for marginal crossed SYN case.
+ * Passively open sockets are not waked up, because
+ * sk->sk_sleep == NULL and sk->sk_socket == NULL.
+ */
+ if (sk->sk_socket)
+ sk_wake_async(sk, SOCK_WAKE_IO, POLL_OUT);
+
+ 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)->seq);
+
+ if (tp->rx_opt.tstamp_ok)
+ tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
+
+ if (req) {
+ /* Re-arm the timer because data may have been sent out.
+ * This is similar to the regular data transmission case
+ * when new data has just been ack'ed.
+ *
+ * (TFO) - we could try to be more aggressive and
+ * retransmitting any data sooner based on when they
+ * are sent out.
*/
- tp->lsndtime = tcp_time_stamp;
+ tcp_rearm_rto(sk);
+ } else
+ tcp_init_metrics(sk);
- tcp_initialize_rcv_mss(sk);
- tcp_fast_path_on(tp);
- } else {
- return 1;
- }
+ /* Prevent spurious tcp_cwnd_restart() on first data packet */
+ tp->lsndtime = tcp_time_stamp;
+
+ tcp_initialize_rcv_mss(sk);
+ tcp_fast_path_on(tp);
break;
case TCP_FIN_WAIT1: