From 2eee40c7f7c3734b28456169b2945e07d5ac0e2d Mon Sep 17 00:00:00 2001
From: =?utf8?q?R=C3=A9mi=20Denis-Courmont?= <remi.denis-courmont@nokia.com>
Date: Tue, 21 Jul 2009 01:57:58 +0000
Subject: [PATCH] Phonet: dropped datagrams accounting
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The per-socket drop count is visible via /proc/net/phonet.

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/phonet/datagram.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/phonet/datagram.c b/net/phonet/datagram.c
index e087862ed7e4..ef5c75c372e4 100644
--- a/net/phonet/datagram.c
+++ b/net/phonet/datagram.c
@@ -159,8 +159,11 @@ out_nofree:
 static int pn_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 {
 	int err = sock_queue_rcv_skb(sk, skb);
-	if (err < 0)
+	if (err < 0) {
 		kfree_skb(skb);
+		if (err == -ENOMEM)
+			atomic_inc(&sk->sk_drops);
+	}
 	return err ? NET_RX_DROP : NET_RX_SUCCESS;
 }
 
-- 
2.39.5