X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Ftcp_lp.c;h=e49836ce012e768a4586432f7b62be9a0b6e5140;hb=a47362a226456d8db8207e618324a2278d05d3a7;hp=43294ad9f63ef839cd26f693ccf1a4eb8b4173ee;hpb=0278ef8b484a71917bd4f03a763285cdaac10954;p=linux-2.6-omap-h63xx.git

diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index 43294ad9f63..e49836ce012 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)
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct lp *lp = inet_csk_ca(sk);
 
-	tcp_lp_rtt_sample(sk,  ktime_to_us(net_timedelta(last)));
+	if (!ktime_equal(last, net_invalid_timestamp()))
+		tcp_lp_rtt_sample(sk,  ktime_to_us(net_timedelta(last)));
 
 	/* calc inference */
 	if (tcp_time_stamp > tp->rx_opt.rcv_tsecr)