3212 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3212 static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)

  3213 {

  3213 {

  3214 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3214 	struct e1000_adapter *adapter = netdev_priv(netdev);

  3215 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3215 	struct e1000_tx_ring *tx_ring = adapter->tx_ring;

  3216 

  3216 

  3217 	netif_stop_queue(netdev);

  3221 	netif_stop_queue(netdev);

  3218 	/* Herbert's original patch had:

  3222 	/* Herbert's original patch had:

  3219 	 *  smp_mb__after_netif_stop_queue();

  3223 	 *  smp_mb__after_netif_stop_queue();

  3220 	 * but since that doesn't exist yet, just open code it. */

  3224 	 * but since that doesn't exist yet, just open code it. */

  3221 	smp_mb();

  3225 	smp_mb();