3337 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3337 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3338 {

  3338 {

  3339 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3339 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3340 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3340 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3341 

  3341 

  3342 	netif_stop_queue(netdev);

  3346 	netif_stop_queue(netdev);

  3343 	/* Herbert's original patch had:

  3347 	/* Herbert's original patch had:

  3344 	 *  smp_mb__after_netif_stop_queue();

  3348 	 *  smp_mb__after_netif_stop_queue();

  3345 	 * but since that doesn't exist yet, just open code it. */

  3349 	 * but since that doesn't exist yet, just open code it. */

  3346 	smp_mb();

  3350 	smp_mb();