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authorYuchung Cheng <ycheng@google.com>2017-09-18 11:05:16 -0700
committerDavid S. Miller <davem@davemloft.net>2017-09-18 17:26:11 -0700
commit4c7124413aa759b8ea0b90cd39177e525396e662 (patch)
tree37fe674a307b1674450dc3e2822d0885535beebb
parent582db7e0c4c2fc5bb4f932f268035883385e3692 (diff)
downloadlinux-4c7124413aa759b8ea0b90cd39177e525396e662.tar.bz2
tcp: remove two unused functions
remove tcp_may_send_now and tcp_snd_test that are no longer used Fixes: 840a3cbe8969 ("tcp: remove forward retransmit feature") Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/tcp.h1
-rw-r--r--net/ipv4/tcp_output.c34
2 files changed, 0 insertions, 35 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index b510f284427a..3bc910a9bfc6 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -544,7 +544,6 @@ u32 tcp_tso_autosize(const struct sock *sk, unsigned int mss_now,
int min_tso_segs);
void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,
int nonagle);
-bool tcp_may_send_now(struct sock *sk);
int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs);
int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs);
void tcp_retransmit_timer(struct sock *sk);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 1c839c99114c..517d737059d1 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1806,40 +1806,6 @@ static bool tcp_snd_wnd_test(const struct tcp_sock *tp,
return !after(end_seq, tcp_wnd_end(tp));
}
-/* This checks if the data bearing packet SKB (usually tcp_send_head(sk))
- * should be put on the wire right now. If so, it returns the number of
- * packets allowed by the congestion window.
- */
-static unsigned int tcp_snd_test(const struct sock *sk, struct sk_buff *skb,
- unsigned int cur_mss, int nonagle)
-{
- const struct tcp_sock *tp = tcp_sk(sk);
- unsigned int cwnd_quota;
-
- tcp_init_tso_segs(skb, cur_mss);
-
- if (!tcp_nagle_test(tp, skb, cur_mss, nonagle))
- return 0;
-
- cwnd_quota = tcp_cwnd_test(tp, skb);
- if (cwnd_quota && !tcp_snd_wnd_test(tp, skb, cur_mss))
- cwnd_quota = 0;
-
- return cwnd_quota;
-}
-
-/* Test if sending is allowed right now. */
-bool tcp_may_send_now(struct sock *sk)
-{
- const struct tcp_sock *tp = tcp_sk(sk);
- struct sk_buff *skb = tcp_send_head(sk);
-
- return skb &&
- tcp_snd_test(sk, skb, tcp_current_mss(sk),
- (tcp_skb_is_last(sk, skb) ?
- tp->nonagle : TCP_NAGLE_PUSH));
-}
-
/* Trim TSO SKB to LEN bytes, put the remaining data into a new packet
* which is put after SKB on the list. It is very much like
* tcp_fragment() except that it may make several kinds of assumptions