tcp: use tcp_jiffies32 for rcv_tstamp and lrcvtime

Use tcp_jiffies32 instead of tcp_time_stamp, since
tcp_time_stamp will soon be only used for TCP TS option.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 6a15c9b..eeb4967 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -672,7 +672,7 @@ static void tcp_event_data_recv(struct sock *sk, struct sk_buff *skb)
 
 	tcp_rcv_rtt_measure(tp);
 
-	now = tcp_time_stamp;
+	now = tcp_jiffies32;
 
 	if (!icsk->icsk_ack.ato) {
 		/* The _first_ data packet received, initialize
@@ -3636,7 +3636,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 	 */
 	sk->sk_err_soft = 0;
 	icsk->icsk_probes_out = 0;
-	tp->rcv_tstamp = tcp_time_stamp;
+	tp->rcv_tstamp = tcp_jiffies32;
 	if (!prior_packets)
 		goto no_queue;
 
@@ -5554,7 +5554,7 @@ void tcp_finish_connect(struct sock *sk, struct sk_buff *skb)
 	struct inet_connection_sock *icsk = inet_csk(sk);
 
 	tcp_set_state(sk, TCP_ESTABLISHED);
-	icsk->icsk_ack.lrcvtime = tcp_time_stamp;
+	icsk->icsk_ack.lrcvtime = tcp_jiffies32;
 
 	if (skb) {
 		icsk->icsk_af_ops->sk_rx_dst_set(sk, skb);