net: ip_queue_rcv_skb() helper

When queueing a skb to socket, we can immediately release its dst if
target socket do not use IP_CMSG_PKTINFO.

tcp_data_queue() can drop dst too.

This to benefit from a hot cache line and avoid the receiver, possibly
on another cpu, to dirty this cache line himself.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 1f86965ba7d7..4560b291180b 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1264,7 +1264,7 @@ static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
         if (inet_sk(sk)->inet_daddr)
                 sock_rps_save_rxhash(sk, skb->rxhash);
 
-        rc = sock_queue_rcv_skb(sk, skb);
+        rc = ip_queue_rcv_skb(sk, skb);
         if (rc < 0) {
                 int is_udplite = IS_UDPLITE(sk);