netdev - [PATCH 06/10] net: ethernet: ixp4xx: Use distinct local variable

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Message-Id: <20191021000824.531-7-linus.walleij@linaro.org>
Date:   Mon, 21 Oct 2019 02:08:20 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 06/10] net: ethernet: ixp4xx: Use distinct local variable

Use "ndev" for the struct net_device and "dev" for the
struct device in probe() and remove(). Add the local
"dev" pointer for later use in refactoring.

Take this opportunity to fix inverse christmas tree
coding style.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 drivers/net/ethernet/xscale/ixp4xx_eth.c | 51 +++++++++++++-----------
 1 file changed, 27 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 26da84402cfd..fbe328693de5 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -1367,20 +1367,23 @@ static const struct net_device_ops ixp4xx_netdev_ops = {
 
 static int ixp4xx_eth_probe(struct platform_device *pdev)
 {
-	struct port *port;
-	struct net_device *dev;
-	struct eth_plat_info *plat = dev_get_platdata(&pdev->dev);
+	char phy_id[MII_BUS_ID_SIZE + 3];
 	struct phy_device *phydev = NULL;
+	struct device *dev = &pdev->dev;
+	struct eth_plat_info *plat;
+	struct net_device *ndev;
+	struct port *port;
 	u32 regs_phys;
-	char phy_id[MII_BUS_ID_SIZE + 3];
 	int err;
 
-	if (!(dev = alloc_etherdev(sizeof(struct port))))
+	plat = dev_get_platdata(dev);
+
+	if (!(ndev = alloc_etherdev(sizeof(struct port))))
 		return -ENOMEM;
 
-	SET_NETDEV_DEV(dev, &pdev->dev);
-	port = netdev_priv(dev);
-	port->netdev = dev;
+	SET_NETDEV_DEV(ndev, dev);
+	port = netdev_priv(ndev);
+	port->netdev = ndev;
 	port->id = pdev->id;
 
 	switch (port->id) {
@@ -1433,18 +1436,18 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
 		goto err_free;
 	}
 
-	dev->netdev_ops = &ixp4xx_netdev_ops;
-	dev->ethtool_ops = &ixp4xx_ethtool_ops;
-	dev->tx_queue_len = 100;
+	ndev->netdev_ops = &ixp4xx_netdev_ops;
+	ndev->ethtool_ops = &ixp4xx_ethtool_ops;
+	ndev->tx_queue_len = 100;
 
-	netif_napi_add(dev, &port->napi, eth_poll, NAPI_WEIGHT);
+	netif_napi_add(ndev, &port->napi, eth_poll, NAPI_WEIGHT);
 
 	if (!(port->npe = npe_request(NPE_ID(port->id)))) {
 		err = -EIO;
 		goto err_free;
 	}
 
-	port->mem_res = request_mem_region(regs_phys, REGS_SIZE, dev->name);
+	port->mem_res = request_mem_region(regs_phys, REGS_SIZE, ndev->name);
 	if (!port->mem_res) {
 		err = -EBUSY;
 		goto err_npe_rel;
@@ -1452,9 +1455,9 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
 
 	port->plat = plat;
 	npe_port_tab[NPE_ID(port->id)] = port;
-	memcpy(dev->dev_addr, plat->hwaddr, ETH_ALEN);
+	memcpy(ndev->dev_addr, plat->hwaddr, ETH_ALEN);
 
-	platform_set_drvdata(pdev, dev);
+	platform_set_drvdata(pdev, ndev);
 
 	__raw_writel(DEFAULT_CORE_CNTRL | CORE_RESET,
 		     &port->regs->core_control);
@@ -1464,7 +1467,7 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
 
 	snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT,
 		mdio_bus->id, plat->phy);
-	phydev = phy_connect(dev, phy_id, &ixp4xx_adjust_link,
+	phydev = phy_connect(ndev, phy_id, &ixp4xx_adjust_link,
 			     PHY_INTERFACE_MODE_MII);
 	if (IS_ERR(phydev)) {
 		err = PTR_ERR(phydev);
@@ -1473,10 +1476,10 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
 
 	phydev->irq = PHY_POLL;
 
-	if ((err = register_netdev(dev)))
+	if ((err = register_netdev(ndev)))
 		goto err_phy_dis;
 
-	printk(KERN_INFO "%s: MII PHY %i on %s\n", dev->name, plat->phy,
+	printk(KERN_INFO "%s: MII PHY %i on %s\n", ndev->name, plat->phy,
 	       npe_name(port->npe));
 
 	return 0;
@@ -1489,23 +1492,23 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
 err_npe_rel:
 	npe_release(port->npe);
 err_free:
-	free_netdev(dev);
+	free_netdev(ndev);
 	return err;
 }
 
 static int ixp4xx_eth_remove(struct platform_device *pdev)
 {
-	struct net_device *dev = platform_get_drvdata(pdev);
-	struct phy_device *phydev = dev->phydev;
-	struct port *port = netdev_priv(dev);
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct phy_device *phydev = ndev->phydev;
+	struct port *port = netdev_priv(ndev);
 
-	unregister_netdev(dev);
+	unregister_netdev(ndev);
 	phy_disconnect(phydev);
 	ixp4xx_mdio_remove();
 	npe_port_tab[NPE_ID(port->id)] = NULL;
 	npe_release(port->npe);
 	release_resource(port->mem_res);
-	free_netdev(dev);
+	free_netdev(ndev);
 	return 0;
 }
 
-- 
2.21.0