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Diffstat (limited to 'net/ipv4/tcp_cdg.c')
-rw-r--r--net/ipv4/tcp_cdg.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/net/ipv4/tcp_cdg.c b/net/ipv4/tcp_cdg.c
index 50a0f3e51d5b..66ac69f7bd19 100644
--- a/net/ipv4/tcp_cdg.c
+++ b/net/ipv4/tcp_cdg.c
@@ -85,7 +85,6 @@ struct cdg {
u8 state;
u8 delack;
u32 rtt_seq;
- u32 undo_cwnd;
u32 shadow_wnd;
u16 backoff_cnt;
u16 sample_cnt;
@@ -330,8 +329,6 @@ static u32 tcp_cdg_ssthresh(struct sock *sk)
struct cdg *ca = inet_csk_ca(sk);
struct tcp_sock *tp = tcp_sk(sk);
- ca->undo_cwnd = tp->snd_cwnd;
-
if (ca->state == CDG_BACKOFF)
return max(2U, (tp->snd_cwnd * min(1024U, backoff_beta)) >> 10);
@@ -344,13 +341,6 @@ static u32 tcp_cdg_ssthresh(struct sock *sk)
return max(2U, tp->snd_cwnd >> 1);
}
-static u32 tcp_cdg_undo_cwnd(struct sock *sk)
-{
- struct cdg *ca = inet_csk_ca(sk);
-
- return max(tcp_sk(sk)->snd_cwnd, ca->undo_cwnd);
-}
-
static void tcp_cdg_cwnd_event(struct sock *sk, const enum tcp_ca_event ev)
{
struct cdg *ca = inet_csk_ca(sk);
@@ -403,7 +393,7 @@ struct tcp_congestion_ops tcp_cdg __read_mostly = {
.cong_avoid = tcp_cdg_cong_avoid,
.cwnd_event = tcp_cdg_cwnd_event,
.pkts_acked = tcp_cdg_acked,
- .undo_cwnd = tcp_cdg_undo_cwnd,
+ .undo_cwnd = tcp_reno_undo_cwnd,
.ssthresh = tcp_cdg_ssthresh,
.release = tcp_cdg_release,
.init = tcp_cdg_init,