FS_ENET: Add polling support

Signed-off-by: NVitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/fs_enet/fs_enet-main.c

@@ -59,6 +59,9 @@ module_param(fs_enet_debug, int, 0);
 MODULE_PARM_DESC(fs_enet_debug,
 		 "Freescale bitmapped debugging message enable value");
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void fs_enet_netpoll(struct net_device *dev);
+#endif
 
 static void fs_set_multicast_list(struct net_device *dev)
 {
@@ -1037,6 +1040,11 @@ static struct net_device *fs_init_instance(struct device *dev,
 	ndev->stop = fs_enet_close;
 	ndev->get_stats = fs_enet_get_stats;
 	ndev->set_multicast_list = fs_set_multicast_list;
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	ndev->poll_controller = fs_enet_netpoll;
+#endif
+
 	netif_napi_add(ndev, &fep->napi,
 		       fs_enet_rx_napi, fpi->napi_weight);
 
@@ -1262,6 +1270,15 @@ static void __exit fs_cleanup(void)
 	cleanup_immap();
 }
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void fs_enet_netpoll(struct net_device *dev)
+{
+       disable_irq(dev->irq);
+       fs_enet_interrupt(dev->irq, dev, NULL);
+       enable_irq(dev->irq);
+}
+#endif
+
 /**************************************************************************************/
 
 module_init(fs_init);