[Patch net] net: revert "net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit"

[Cong Wang]

This reverts commit 7c6ae610a1f0, because l2tp_xmit_skb() never
returns NET_XMIT_CN, it ignores the return value of l2tp_xmit_core().

Cc: Gao Feng <gfree.w...@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
---
 net/l2tp/l2tp_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index 3dc97b4..965f7e3 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -97,7 +97,7 @@ static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct 
net_device *dev)
        unsigned int len = skb->len;
        int ret = l2tp_xmit_skb(session, skb, session->hdr_len);
 
-       if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
+       if (likely(ret == NET_XMIT_SUCCESS)) {
                atomic_long_add(len, &priv->tx_bytes);
                atomic_long_inc(&priv->tx_packets);
        } else {
-- 
1.8.4.5