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tcp: Change tcp_slow_start function to return void

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No caller uses the return value, so make this function return void.

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li RongQing 2014-09-30 09:49:55 +08:00 committed by David S. Miller
parent 3243acd37f
commit a12a601ed1
2 changed files with 2 additions and 4 deletions
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2
include/net/tcp.h
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@ -830,7 +830,7 @@ void tcp_get_available_congestion_control(char *buf, size_t len);
void tcp_get_allowed_congestion_control(char *buf, size_t len);
int tcp_set_allowed_congestion_control(char *allowed);
int tcp_set_congestion_control(struct sock *sk, const char *name);
int tcp_slow_start(struct tcp_sock *tp, u32 acked);
void tcp_slow_start(struct tcp_sock *tp, u32 acked);
void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
u32 tcp_reno_ssthresh(struct sock *sk);

4
net/ipv4/tcp_cong.c
View File

@ -291,15 +291,13 @@ int tcp_set_congestion_control(struct sock *sk, const char *name)
* ABC caps N to 2. Slow start exits when cwnd grows over ssthresh and
* returns the leftover acks to adjust cwnd in congestion avoidance mode.
*/
int tcp_slow_start(struct tcp_sock *tp, u32 acked)
void tcp_slow_start(struct tcp_sock *tp, u32 acked)
{
u32 cwnd = tp->snd_cwnd + acked;
if (cwnd > tp->snd_ssthresh)
cwnd = tp->snd_ssthresh + 1;
acked -= cwnd - tp->snd_cwnd;
tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp);
return acked;
}
EXPORT_SYMBOL_GPL(tcp_slow_start);