diff options
| author | Eric Dumazet <edumazet@google.com> | 2012-06-28 20:15:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-29 00:52:32 -0700 |
| commit | b8c8430726e5bd552e01dacc5a44f3f83f7446ca (patch) | |
| tree | e966e64a7bb8a2451048b7e73c0c4aa9a8db40a3 /net/l2tp/l2tp_core.c | |
| parent | a777c892cea917b6c67c61f8dff47d8caae7b8a1 (diff) | |
| download | linux-b8c8430726e5bd552e01dacc5a44f3f83f7446ca.tar.bz2 | |
net: l2tp_eth: provide tx_dropped counter
Change l2tp_xmit_skb() to return NET_XMIT_DROP in case skb is dropped.
Use kfree_skb() instead dev_kfree_skb() for drop_monitor pleasure.
Support tx_dropped counter for l2tp_eth
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp/l2tp_core.c')
| -rw-r--r-- | net/l2tp/l2tp_core.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index 32b2155e7ab4..393355d37b47 100644 --- a/net/l2tp/l2tp_core.c +++ b/net/l2tp/l2tp_core.c @@ -1128,6 +1128,7 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len int headroom; int uhlen = (tunnel->encap == L2TP_ENCAPTYPE_UDP) ? sizeof(struct udphdr) : 0; int udp_len; + int ret = NET_XMIT_SUCCESS; /* Check that there's enough headroom in the skb to insert IP, * UDP and L2TP headers. If not enough, expand it to @@ -1137,8 +1138,8 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len uhlen + hdr_len; old_headroom = skb_headroom(skb); if (skb_cow_head(skb, headroom)) { - dev_kfree_skb(skb); - goto abort; + kfree_skb(skb); + return NET_XMIT_DROP; } new_headroom = skb_headroom(skb); @@ -1156,7 +1157,8 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len bh_lock_sock(sk); if (sock_owned_by_user(sk)) { - dev_kfree_skb(skb); + kfree_skb(skb); + ret = NET_XMIT_DROP; goto out_unlock; } @@ -1215,8 +1217,7 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len out_unlock: bh_unlock_sock(sk); -abort: - return 0; + return ret; } EXPORT_SYMBOL_GPL(l2tp_xmit_skb); |