net: ethernet: lpc_eth: add device and device node local variables

Trivial non-functional change added to simplify getting multiple
references to device pointer in lpc_eth_drv_probe().

Signed-off-by: Vladimir Zapolskiy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: vzapolskiy

drivers/net/ethernet/nxp/lpc_eth.c

@@ -1241,17 +1241,19 @@ static const struct net_device_ops lpc_netdev_ops = {
 
 static int lpc_eth_drv_probe(struct platform_device *pdev)
 {
-	struct resource *res;
-	struct net_device *ndev;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
 	struct netdata_local *pldat;
+	struct net_device *ndev;
 	dma_addr_t dma_handle;
+	struct resource *res;
 	int irq, ret;
 	u32 tmp;
 
 	/* Setup network interface for RMII or MII mode */
 	tmp = __raw_readl(LPC32XX_CLKPWR_MACCLK_CTRL);
 	tmp &= ~LPC32XX_CLKPWR_MACCTRL_PINS_MSK;
-	if (lpc_phy_interface_mode(&pdev->dev) == PHY_INTERFACE_MODE_MII)
+	if (lpc_phy_interface_mode(dev) == PHY_INTERFACE_MODE_MII)
 		tmp |= LPC32XX_CLKPWR_MACCTRL_USE_MII_PINS;
 	else
 		tmp |= LPC32XX_CLKPWR_MACCTRL_USE_RMII_PINS;
@@ -1261,20 +1263,20 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
 	if (!res || irq < 0) {
-		dev_err(&pdev->dev, "error getting resources.\n");
+		dev_err(dev, "error getting resources.\n");
 		ret = -ENXIO;
 		goto err_exit;
 	}
 
 	/* Allocate net driver data structure */
 	ndev = alloc_etherdev(sizeof(struct netdata_local));
 	if (!ndev) {
-		dev_err(&pdev->dev, "could not allocate device.\n");
+		dev_err(dev, "could not allocate device.\n");
 		ret = -ENOMEM;
 		goto err_exit;
 	}
 
-	SET_NETDEV_DEV(ndev, &pdev->dev);
+	SET_NETDEV_DEV(ndev, dev);
 
 	pldat = netdev_priv(ndev);
 	pldat->pdev = pdev;
@@ -1286,9 +1288,9 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	ndev->irq = irq;
 
 	/* Get clock for the device */
-	pldat->clk = clk_get(&pdev->dev, NULL);
+	pldat->clk = clk_get(dev, NULL);
 	if (IS_ERR(pldat->clk)) {
-		dev_err(&pdev->dev, "error getting clock.\n");
+		dev_err(dev, "error getting clock.\n");
 		ret = PTR_ERR(pldat->clk);
 		goto err_out_free_dev;
 	}
@@ -1301,14 +1303,14 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	/* Map IO space */
 	pldat->net_base = ioremap(res->start, resource_size(res));
 	if (!pldat->net_base) {
-		dev_err(&pdev->dev, "failed to map registers\n");
+		dev_err(dev, "failed to map registers\n");
 		ret = -ENOMEM;
 		goto err_out_disable_clocks;
 	}
 	ret = request_irq(ndev->irq, __lpc_eth_interrupt, 0,
 			  ndev->name, ndev);
 	if (ret) {
-		dev_err(&pdev->dev, "error requesting interrupt.\n");
+		dev_err(dev, "error requesting interrupt.\n");
 		goto err_out_iounmap;
 	}
 
@@ -1322,7 +1324,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 		sizeof(struct txrx_desc_t) + sizeof(struct rx_status_t));
 	pldat->dma_buff_base_v = 0;
 
-	if (use_iram_for_net(&pldat->pdev->dev)) {
+	if (use_iram_for_net(dev)) {
 		dma_handle = LPC32XX_IRAM_BASE;
 		if (pldat->dma_buff_size <= lpc32xx_return_iram_size())
 			pldat->dma_buff_base_v =
@@ -1333,7 +1335,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	}
 
 	if (pldat->dma_buff_base_v == 0) {
-		ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+		ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
 		if (ret)
 			goto err_out_free_irq;
 
@@ -1342,7 +1344,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 		/* Allocate a chunk of memory for the DMA ethernet buffers
 		   and descriptors */
 		pldat->dma_buff_base_v =
-			dma_alloc_coherent(&pldat->pdev->dev,
+			dma_alloc_coherent(dev,
 					   pldat->dma_buff_size, &dma_handle,
 					   GFP_KERNEL);
 		if (pldat->dma_buff_base_v == NULL) {
@@ -1367,7 +1369,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	__lpc_get_mac(pldat, ndev->dev_addr);
 
 	if (!is_valid_ether_addr(ndev->dev_addr)) {
-		const char *macaddr = of_get_mac_address(pdev->dev.of_node);
+		const char *macaddr = of_get_mac_address(np);
 		if (macaddr)
 			memcpy(ndev->dev_addr, macaddr, ETH_ALEN);
 	}
@@ -1397,7 +1399,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 
 	ret = register_netdev(ndev);
 	if (ret) {
-		dev_err(&pdev->dev, "Cannot register net device, aborting.\n");
+		dev_err(dev, "Cannot register net device, aborting.\n");
 		goto err_out_dma_unmap;
 	}
 	platform_set_drvdata(pdev, ndev);
@@ -1409,17 +1411,17 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	netdev_info(ndev, "LPC mac at 0x%08x irq %d\n",
 	       res->start, ndev->irq);
 
-	device_init_wakeup(&pdev->dev, 1);
-	device_set_wakeup_enable(&pdev->dev, 0);
+	device_init_wakeup(dev, 1);
+	device_set_wakeup_enable(dev, 0);
 
 	return 0;
 
 err_out_unregister_netdev:
 	unregister_netdev(ndev);
 err_out_dma_unmap:
-	if (!use_iram_for_net(&pldat->pdev->dev) ||
+	if (!use_iram_for_net(dev) ||
 	    pldat->dma_buff_size > lpc32xx_return_iram_size())
-		dma_free_coherent(&pldat->pdev->dev, pldat->dma_buff_size,
+		dma_free_coherent(dev, pldat->dma_buff_size,
 				  pldat->dma_buff_base_v,
 				  pldat->dma_buff_base_p);
 err_out_free_irq: