2949 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  2949 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  2950 {

  2950 {

  2951 	struct e1000_adapter *adapter = netdev_priv(netdev);

  2951 	struct e1000_adapter *adapter = netdev_priv(netdev);

  2952 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  2952 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  2953 

  2953 

  2954 	netif_stop_queue(netdev);

  2958 	netif_stop_queue(netdev);

  2955 	/* Herbert's original patch had:

  2959 	/* Herbert's original patch had:

  2956 	 *  smp_mb__after_netif_stop_queue();

  2960 	 *  smp_mb__after_netif_stop_queue();

  2957 	 * but since that doesn't exist yet, just open code it. */

  2961 	 * but since that doesn't exist yet, just open code it. */

  2958 	smp_mb();

  2962 	smp_mb();