[NETFILTER]: add some consts, remove some casts

[linux-2.6-omap-h63xx.git] / net / ipv4 / tcp_lp.c

diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index 43294ad9f63ef839cd26f693ccf1a4eb8b4173ee..e49836ce012e768a4586432f7b62be9a0b6e5140 100644 (file)
--- 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)