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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
Download Patch File Download Diff File Expand all files Collapse all files

6
net/ipv4/tcp_vegas.c
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@@ -163,13 +163,13 @@ void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event)
EXPORT_SYMBOL_GPL(tcp_vegas_cwnd_event);
static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack,
u32 seq_rtt, u32 in_flight, int flag)
u32 in_flight, int flag)
{
struct tcp_sock *tp = tcp_sk(sk);
struct vegas *vegas = inet_csk_ca(sk);
if (!vegas->doing_vegas_now)
return tcp_reno_cong_avoid(sk, ack, seq_rtt, in_flight, flag);
return tcp_reno_cong_avoid(sk, ack, in_flight, flag);
/* The key players are v_beg_snd_una and v_beg_snd_nxt.
*
@@ -228,7 +228,7 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack,
/* We don't have enough RTT samples to do the Vegas
* calculation, so we'll behave like Reno.
*/
tcp_reno_cong_avoid(sk, ack, seq_rtt, in_flight, flag);
tcp_reno_cong_avoid(sk, ack, in_flight, flag);
} else {
u32 rtt, target_cwnd, diff;