3298 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3298 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3299 {

  3299 {

  3300 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3300 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3301 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3301 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3302 

  3302 

  3303 	netif_stop_queue(netdev);

  3307 	netif_stop_queue(netdev);

  3304 	/* Herbert's original patch had:

  3308 	/* Herbert's original patch had:

  3305 	 *  smp_mb__after_netif_stop_queue();

  3309 	 *  smp_mb__after_netif_stop_queue();

  3306 	 * but since that doesn't exist yet, just open code it. */

  3310 	 * but since that doesn't exist yet, just open code it. */

  3307 	smp_mb();

  3311 	smp_mb();