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net: mv643xx_eth: Count dropped packets properly

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This commit fixes the current dropped packet count by doing it properly,
increasing the count when a packet is discarded; i.e. the packet is not
processed and the driver returns NETDEV_TX_OK.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ezequiel Garcia 2014-05-30 13:40:08 -03:00 committed by David S. Miller
parent 2e3173a3d3
commit dd11680d0e
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/marvell/mv643xx_eth.c
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@ -967,7 +967,6 @@ static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
nq = netdev_get_tx_queue(dev, queue);
if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) {
txq->tx_dropped++;
netdev_printk(KERN_DEBUG, dev,
"failed to linearize skb with tiny unaligned fragment\n");
return NETDEV_TX_BUSY;
@ -976,6 +975,7 @@ static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) {
if (net_ratelimit())
netdev_err(dev, "tx queue full?!\n");
txq->tx_dropped++;
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
@ -997,6 +997,9 @@ static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
netif_tx_stop_queue(nq);
} else if (ret == -EBUSY) {
return NETDEV_TX_BUSY;
} else {
txq->tx_dropped++;
dev_kfree_skb_any(skb);
}
return NETDEV_TX_OK;