net: sk_drops consolidation part 2

- skb_kill_datagram() can increment sk->sk_drops itself, not callers.

- UDP on IPV4 & IPV6 dropped frames (because of bad checksum or policy checks) increment sk_drops

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

1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index ec5c7a720c0c..4274c1cc78fd 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -867,6 +867,7 @@ static unsigned int first_packet_length(struct sock *sk)
                 udp_lib_checksum_complete(skb)) {
                 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
                                  IS_UDPLITE(sk));
+                atomic_inc(&sk->sk_drops);
                 __skb_unlink(skb, rcvq);
                 __skb_queue_tail(&list_kill, skb);
         }
@@ -1186,6 +1187,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 
 drop:
         UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
+        atomic_inc(&sk->sk_drops);
         kfree_skb(skb);
         return -1;
 }