lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri, 24 May 2019 18:20:17 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>
Cc:     Krzysztof Halasa <khalasa@...p.pl>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 2/8] 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 ae69836d0080..a0c02458f456 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -1369,20 +1369,23 @@ 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) {
@@ -1435,18 +1438,18 @@ 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;
@@ -1454,9 +1457,9 @@ 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);
@@ -1466,7 +1469,7 @@ 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);
@@ -1475,10 +1478,10 @@ 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;
@@ -1491,23 +1494,23 @@ 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;
 }
 
-- 
2.20.1

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ