[PATCH] ixgb: Robert Olsson's fix and refinement to poll

obert Olsson's fix and refinement to the poll routine
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/ixgb/ixgb_main.c

@@ -1669,20 +1669,16 @@ ixgb_clean(struct net_device *netdev, int *budget)
 	int work_to_do = min(*budget, netdev->quota);
 	int tx_cleaned;
 	int work_done = 0;
-	
-	if (!netif_carrier_ok(netdev))
-		goto quit_polling;
 
 	tx_cleaned = ixgb_clean_tx_irq(adapter);
 	ixgb_clean_rx_irq(adapter, &work_done, work_to_do);
 
 	*budget -= work_done;
 	netdev->quota -= work_done;
-	
-	/* if no Tx cleanup and not enough Rx work done, exit the polling mode */
-	if((!tx_cleaned && (work_done < work_to_do)) || 
-				!netif_running(netdev)) {
-quit_polling:	netif_rx_complete(netdev);
+
+	/* if no Tx and not enough Rx work done, exit the polling mode */
+	if((!tx_cleaned && (work_done == 0)) || !netif_running(netdev)) {
+		netif_rx_complete(netdev);
 		ixgb_irq_enable(adapter);
 		return 0;
 	}