diff options
Diffstat (limited to 'net/packet/af_packet.c')
| -rw-r--r-- | net/packet/af_packet.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 097a354ec8cd..01039d2b1695 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -243,40 +243,40 @@ static int packet_direct_xmit(struct sk_buff *skb) const struct net_device_ops *ops = dev->netdev_ops; netdev_features_t features; struct netdev_queue *txq; + int ret = NETDEV_TX_BUSY; u16 queue_map; - int ret; if (unlikely(!netif_running(dev) || - !netif_carrier_ok(dev))) { - kfree_skb(skb); - return NET_XMIT_DROP; - } + !netif_carrier_ok(dev))) + goto drop; features = netif_skb_features(skb); if (skb_needs_linearize(skb, features) && - __skb_linearize(skb)) { - kfree_skb(skb); - return NET_XMIT_DROP; - } + __skb_linearize(skb)) + goto drop; queue_map = skb_get_queue_mapping(skb); txq = netdev_get_tx_queue(dev, queue_map); - __netif_tx_lock_bh(txq); - if (unlikely(netif_xmit_frozen_or_stopped(txq))) { - ret = NETDEV_TX_BUSY; - kfree_skb(skb); - goto out; + local_bh_disable(); + + HARD_TX_LOCK(dev, txq, smp_processor_id()); + if (!netif_xmit_frozen_or_stopped(txq)) { + ret = ops->ndo_start_xmit(skb, dev); + if (ret == NETDEV_TX_OK) + txq_trans_update(txq); } + HARD_TX_UNLOCK(dev, txq); - ret = ops->ndo_start_xmit(skb, dev); - if (likely(dev_xmit_complete(ret))) - txq_trans_update(txq); - else + local_bh_enable(); + + if (!dev_xmit_complete(ret)) kfree_skb(skb); -out: - __netif_tx_unlock_bh(txq); + return ret; +drop: + kfree_skb(skb); + return NET_XMIT_DROP; } static struct net_device *packet_cached_dev_get(struct packet_sock *po) |