3073 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3073 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3074 {

  3074 {

  3075 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3075 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3076 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3076 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3077 

  3077 

  3078 	netif_stop_queue(netdev);

  3082 	netif_stop_queue(netdev);

  3079 	/* Herbert's original patch had:

  3083 	/* Herbert's original patch had:

  3080 	 *  smp_mb__after_netif_stop_queue();

  3084 	 *  smp_mb__after_netif_stop_queue();

  3081 	 * but since that doesn't exist yet, just open code it. */

  3085 	 * but since that doesn't exist yet, just open code it. */

  3082 	smp_mb();

  3086 	smp_mb();