Phonet: account for dropped RX packets

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 1 deletions

diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index eef833ea6d7b..b8252d289cd7 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -346,8 +346,10 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
                 break;
 
         case PNS_PEP_CTRL_REQ:
-                if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX)
+                if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
+                        atomic_inc(&sk->sk_drops);
                         break;
+                }
                 __skb_pull(skb, 4);
                 queue = &pn->ctrlreq_queue;
                 goto queue;
@@ -358,10 +360,13 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
                         err = sock_queue_rcv_skb(sk, skb);
                         if (!err)
                                 return 0;
+                        if (err == -ENOMEM)
+                                atomic_inc(&sk->sk_drops);
                         break;
                 }
 
                 if (pn->rx_credits == 0) {
+                        atomic_inc(&sk->sk_drops);
                         err = -ENOBUFS;
                         break;
                 }