net: ethernet: xilinx: axienet: use phydev from struct net_device

The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/xilinx/xilinx_axienet.h

···
  * struct axienet_local - axienet private per device data
  * @ndev:	Pointer for net_device to which it will be attached.
  * @dev:	Pointer to device structure
- * @phy_dev:	Pointer to PHY device structure attached to the axienet_local
  * @phy_node:	Pointer to device node structure
  * @mii_bus:	Pointer to MII bus structure
  * @regs:	Base address for the axienet_local device address space
···
 	struct device *dev;
 
 	/* Connection to PHY device */
-	struct phy_device *phy_dev;	/* Pointer to PHY device */
 	struct device_node *phy_node;
 
 	/* MDIO bus data */

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

···
 	u32 link_state;
 	u32 setspeed = 1;
 	struct axienet_local *lp = netdev_priv(ndev);
-	struct phy_device *phy = lp->phy_dev;
+	struct phy_device *phy = ndev->phydev;
 
 	link_state = phy->speed | (phy->duplex << 1) | phy->link;
 	if (lp->last_link != link_state) {
···
 {
 	int ret, mdio_mcreg;
 	struct axienet_local *lp = netdev_priv(ndev);
+	struct phy_device *phydev = NULL;
 
 	dev_dbg(&ndev->dev, "axienet_open()\n");
 
···
 
 	if (lp->phy_node) {
 		if (lp->phy_type == XAE_PHY_TYPE_GMII) {
-			lp->phy_dev = of_phy_connect(lp->ndev, lp->phy_node,
-					     axienet_adjust_link, 0,
-					     PHY_INTERFACE_MODE_GMII);
+			phydev = of_phy_connect(lp->ndev, lp->phy_node,
+						axienet_adjust_link, 0,
+						PHY_INTERFACE_MODE_GMII);
 		} else if (lp->phy_type == XAE_PHY_TYPE_RGMII_2_0) {
-			lp->phy_dev = of_phy_connect(lp->ndev, lp->phy_node,
-					     axienet_adjust_link, 0,
-					     PHY_INTERFACE_MODE_RGMII_ID);
+			phydev = of_phy_connect(lp->ndev, lp->phy_node,
+						axienet_adjust_link, 0,
+						PHY_INTERFACE_MODE_RGMII_ID);
 		}
 
-		if (!lp->phy_dev)
+		if (!phydev)
 			dev_err(lp->dev, "of_phy_connect() failed\n");
 		else
-			phy_start(lp->phy_dev);
+			phy_start(phydev);
 	}
 
 	/* Enable tasklets for Axi DMA error handling */
···
 err_rx_irq:
 	free_irq(lp->tx_irq, ndev);
 err_tx_irq:
-	if (lp->phy_dev)
-		phy_disconnect(lp->phy_dev);
-	lp->phy_dev = NULL;
+	if (phydev)
+		phy_disconnect(phydev);
 	tasklet_kill(&lp->dma_err_tasklet);
 	dev_err(lp->dev, "request_irq() failed\n");
 	return ret;
···
 	free_irq(lp->tx_irq, ndev);
 	free_irq(lp->rx_irq, ndev);
 
-	if (lp->phy_dev)
-		phy_disconnect(lp->phy_dev);
-	lp->phy_dev = NULL;
+	if (ndev->phydev)
+		phy_disconnect(ndev->phydev);
 
 	axienet_dma_bd_release(ndev);
 	return 0;
···
 static int axienet_ethtools_get_settings(struct net_device *ndev,
 					 struct ethtool_cmd *ecmd)
 {
-	struct axienet_local *lp = netdev_priv(ndev);
-	struct phy_device *phydev = lp->phy_dev;
+	struct phy_device *phydev = ndev->phydev;
 	if (!phydev)
 		return -ENODEV;
 	return phy_ethtool_gset(phydev, ecmd);
···
 static int axienet_ethtools_set_settings(struct net_device *ndev,
 					 struct ethtool_cmd *ecmd)
 {
-	struct axienet_local *lp = netdev_priv(ndev);
-	struct phy_device *phydev = lp->phy_dev;
+	struct phy_device *phydev = ndev->phydev;
 	if (!phydev)
 		return -ENODEV;
 	return phy_ethtool_sset(phydev, ecmd);