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Diffstat (limited to 'net/ipv4/tcp_lp.c')
-rw-r--r--net/ipv4/tcp_lp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index 43294ad9f63e..e49836ce012e 100644
--- a/net/ipv4/tcp_lp.c
+++ b/net/ipv4/tcp_lp.c
@@ -266,7 +266,8 @@ static void tcp_lp_pkts_acked(struct sock *sk, u32 num_acked, ktime_t last)
266 struct tcp_sock *tp = tcp_sk(sk); 266 struct tcp_sock *tp = tcp_sk(sk);
267 struct lp *lp = inet_csk_ca(sk); 267 struct lp *lp = inet_csk_ca(sk);
268 268
269 tcp_lp_rtt_sample(sk, ktime_to_us(net_timedelta(last))); 269 if (!ktime_equal(last, net_invalid_timestamp()))
270 tcp_lp_rtt_sample(sk, ktime_to_us(net_timedelta(last)));
270 271
271 /* calc inference */ 272 /* calc inference */
272 if (tcp_time_stamp > tp->rx_opt.rcv_tsecr) 273 if (tcp_time_stamp > tp->rx_opt.rcv_tsecr)