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path: root/net/ipv4/tcp_illinois.c
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Diffstat (limited to 'net/ipv4/tcp_illinois.c')
-rw-r--r--net/ipv4/tcp_illinois.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 60352ff4f5a8..7c843578f233 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -48,7 +48,6 @@ struct illinois {
u32 end_seq; /* right edge of current RTT */
u32 alpha; /* Additive increase */
u32 beta; /* Muliplicative decrease */
- u32 loss_cwnd; /* cwnd on loss */
u16 acked; /* # packets acked by current ACK */
u8 rtt_above; /* average rtt has gone above threshold */
u8 rtt_low; /* # of rtts measurements below threshold */
@@ -297,18 +296,10 @@ static u32 tcp_illinois_ssthresh(struct sock *sk)
struct tcp_sock *tp = tcp_sk(sk);
struct illinois *ca = inet_csk_ca(sk);
- ca->loss_cwnd = tp->snd_cwnd;
/* Multiplicative decrease */
return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->beta) >> BETA_SHIFT), 2U);
}
-static u32 tcp_illinois_cwnd_undo(struct sock *sk)
-{
- const struct illinois *ca = inet_csk_ca(sk);
-
- return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd);
-}
-
/* Extract info for Tcp socket info provided via netlink. */
static size_t tcp_illinois_info(struct sock *sk, u32 ext, int *attr,
union tcp_cc_info *info)
@@ -336,7 +327,7 @@ static size_t tcp_illinois_info(struct sock *sk, u32 ext, int *attr,
static struct tcp_congestion_ops tcp_illinois __read_mostly = {
.init = tcp_illinois_init,
.ssthresh = tcp_illinois_ssthresh,
- .undo_cwnd = tcp_illinois_cwnd_undo,
+ .undo_cwnd = tcp_reno_undo_cwnd,
.cong_avoid = tcp_illinois_cong_avoid,
.set_state = tcp_illinois_state,
.get_info = tcp_illinois_info,