net: congestion notifications are not dropped packets

vlan/macvlan start_xmit() can inform caller of congestion with
NET_XMIT_CN return value. This doesnt mean packet was dropped.
Increment normal stat counters instead of tx_dropped.

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

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 1b78c00..4e238af 100644 (file)
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -239,7 +239,7 @@ netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
        int ret;
 
        ret = macvlan_queue_xmit(skb, dev);
-       if (likely(ret == NET_XMIT_SUCCESS)) {
+       if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
                txq->tx_packets++;
                txq->tx_bytes += len;
        } else

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index b5249c5..55be908 100644 (file)
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -327,7 +327,7 @@ static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
        len = skb->len;
        ret = dev_queue_xmit(skb);
 
-       if (likely(ret == NET_XMIT_SUCCESS)) {
+       if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
                txq->tx_packets++;
                txq->tx_bytes += len;
        } else
@@ -353,7 +353,7 @@ static netdev_tx_t vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb,
        len = skb->len;
        ret = dev_queue_xmit(skb);
 
-       if (likely(ret == NET_XMIT_SUCCESS)) {
+       if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
                txq->tx_packets++;
                txq->tx_bytes += len;
        } else