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Commit a12a601e authored by Li RongQing's avatar Li RongQing Committed by David S. Miller
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tcp: Change tcp_slow_start function to return void 



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

Signed-off-by: default avatarLi RongQing <roy.qing.li@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3243acd3

include/net/tcp.h

+1 −1
Original line number Diff line number Diff line
@@ -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);

net/ipv4/tcp_cong.c

+1 −3
Original line number Diff line number Diff line
@@ -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);