ucc_geth: Factor out MAC initialization steps into a call

This patch factors out MAC initialization into ucc_geth_init_mac()
function that we'll use for suspend/resume.
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ucc_geth.c

@@ -3429,46 +3429,25 @@ static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
 	return 0;
 }
 
-/* Called when something needs to use the ethernet device */
-/* Returns 0 for success. */
-static int ucc_geth_open(struct net_device *dev)
+static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
 {
-	struct ucc_geth_private *ugeth = netdev_priv(dev);
+	struct net_device *dev = ugeth->ndev;
 	int err;
 
-	ugeth_vdbg("%s: IN", __func__);
-
-	/* Test station address */
-	if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
-		if (netif_msg_ifup(ugeth))
-			ugeth_err("%s: Multicast address used for station address"
-				  " - is this what you wanted?", __func__);
-		return -EINVAL;
-	}
-
-	err = init_phy(dev);
-	if (err) {
-		if (netif_msg_ifup(ugeth))
-			ugeth_err("%s: Cannot initialize PHY, aborting.",
-				  dev->name);
-		return err;
-	}
-
 	err = ucc_struct_init(ugeth);
 	if (err) {
 		if (netif_msg_ifup(ugeth))
-			ugeth_err("%s: Cannot configure internal struct, aborting.", dev->name);
-		goto out_err_stop;
+			ugeth_err("%s: Cannot configure internal struct, "
+				  "aborting.", dev->name);
+		goto err;
 	}
 
-	napi_enable(&ugeth->napi);
-
 	err = ucc_geth_startup(ugeth);
 	if (err) {
 		if (netif_msg_ifup(ugeth))
 			ugeth_err("%s: Cannot configure net device, aborting.",
 				  dev->name);
-		goto out_err;
+		goto err;
 	}
 
 	err = adjust_enet_interface(ugeth);
@@ -3476,7 +3455,7 @@ static int ucc_geth_open(struct net_device *dev)
 		if (netif_msg_ifup(ugeth))
 			ugeth_err("%s: Cannot configure net device, aborting.",
 				  dev->name);
-		goto out_err;
+		goto err;
 	}
 
 	/*       Set MACSTNADDR1, MACSTNADDR2                */
@@ -3490,13 +3469,51 @@ static int ucc_geth_open(struct net_device *dev)
 				   &ugeth->ug_regs->macstnaddr1,
 				   &ugeth->ug_regs->macstnaddr2);
 
-	phy_start(ugeth->phydev);
-
 	err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
 	if (err) {
 		if (netif_msg_ifup(ugeth))
 			ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
-		goto out_err;
+		goto err;
+	}
+
+	return 0;
+err:
+	ucc_geth_stop(ugeth);
+	return err;
+}
+
+/* Called when something needs to use the ethernet device */
+/* Returns 0 for success. */
+static int ucc_geth_open(struct net_device *dev)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(dev);
+	int err;
+
+	ugeth_vdbg("%s: IN", __func__);
+
+	/* Test station address */
+	if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
+		if (netif_msg_ifup(ugeth))
+			ugeth_err("%s: Multicast address used for station "
+				  "address - is this what you wanted?",
+				  __func__);
+		return -EINVAL;
+	}
+
+	err = init_phy(dev);
+	if (err) {
+		if (netif_msg_ifup(ugeth))
+			ugeth_err("%s: Cannot initialize PHY, aborting.",
+				  dev->name);
+		return err;
+	}
+
+	err = ucc_geth_init_mac(ugeth);
+	if (err) {
+		if (netif_msg_ifup(ugeth))
+			ugeth_err("%s: Cannot initialize MAC, aborting.",
+				  dev->name);
+		goto err;
 	}
 
 	err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
@@ -3505,16 +3522,16 @@ static int ucc_geth_open(struct net_device *dev)
 		if (netif_msg_ifup(ugeth))
 			ugeth_err("%s: Cannot get IRQ for net device, aborting.",
 				  dev->name);
-		goto out_err;
+		goto err;
 	}
 
+	phy_start(ugeth->phydev);
+	napi_enable(&ugeth->napi);
 	netif_start_queue(dev);
 
 	return err;
 
-out_err:
-	napi_disable(&ugeth->napi);
-out_err_stop:
+err:
 	ucc_geth_stop(ugeth);
 	return err;
 }