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[TCP]: remove unused argument to cong_avoid op

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None of the existing TCP congestion controls use the rtt value pased
in the ca_ops->cong_avoid interface.  Which is lucky because seq_rtt
could have been -1 when handling a duplicate ack.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
2007-07-16 18:35:52 -07:00
committed by David S. Miller
parent 44beac0086
commit 16751347a0
14 changed files with 24 additions and 28 deletions
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6
include/net/tcp.h
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@@ -652,8 +652,7 @@ struct tcp_congestion_ops {
/* lower bound for congestion window (optional) */
u32 (*min_cwnd)(const struct sock *sk);
/* do new cwnd calculation (required) */
void (*cong_avoid)(struct sock *sk, u32 ack,
u32 rtt, u32 in_flight, int good_ack);
void (*cong_avoid)(struct sock *sk, u32 ack, u32 in_flight, int good_ack);
/* call before changing ca_state (optional) */
void (*set_state)(struct sock *sk, u8 new_state);
/* call when cwnd event occurs (optional) */
@@ -684,8 +683,7 @@ extern void tcp_slow_start(struct tcp_sock *tp);
extern struct tcp_congestion_ops tcp_init_congestion_ops;
extern u32 tcp_reno_ssthresh(struct sock *sk);
extern void tcp_reno_cong_avoid(struct sock *sk, u32 ack,
u32 rtt, u32 in_flight, int flag);
extern void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int flag);
extern u32 tcp_reno_min_cwnd(const struct sock *sk);
extern struct tcp_congestion_ops tcp_reno;