> -----Original Message-----
> From: Markus Elfring <Markus.Elfring@xxxxxx>
> Sent: Wednesday, September 18, 2019 7:01 PM
> To: netdev@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; David S.
> Miller <davem@xxxxxxxxxxxxx>; Hans Ulli Kroll <ulli.kroll@xxxxxxxxxxxxxx>;
> Hauke Mehrtens <hauke@xxxxxxxxxx>; Linus Walleij
> <linus.walleij@xxxxxxxxxx>; Michal Simek <michals@xxxxxxxxxx>; Radhey
> Shyam Pandey <radheys@xxxxxxxxxx>
> Cc: LKML <linux-kernel@xxxxxxxxxxxxxxx>; kernel-janitors@xxxxxxxxxxxxxxx;
> Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>; Himanshu Jha
> <himanshujha199640@xxxxxxxxx>
> Subject: [PATCH] ethernet: Use devm_platform_ioremap_resource() in three
> functions
Prefer using a separate patch for each driver. Also skip mentioning
"three functions" in commit description.
>
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Wed, 18 Sep 2019 15:15:06 +0200
>
> Simplify these function implementations by using a known wrapper function.
Minor nit- Better to mention about these funcs in commit description.
Something like- uses devm_platform_ioremap_resource() instead of using
platform_get_resource() and devm_ioremap_resource() together to simplify.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
> drivers/net/ethernet/cortina/gemini.c | 6 +-----
> drivers/net/ethernet/lantiq_xrx200.c | 11 +----------
> drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 9 +--------
> 3 files changed, 3 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/net/ethernet/cortina/gemini.c
> b/drivers/net/ethernet/cortina/gemini.c
> index e736ce2c58ca..f009415ee4d8 100644
> --- a/drivers/net/ethernet/cortina/gemini.c
> +++ b/drivers/net/ethernet/cortina/gemini.c
> @@ -2549,17 +2549,13 @@ static int gemini_ethernet_probe(struct
> platform_device *pdev)
> struct device *dev = &pdev->dev;
> struct gemini_ethernet *geth;
> unsigned int retry = 5;
> - struct resource *res;
> u32 val;
>
> /* Global registers */
> geth = devm_kzalloc(dev, sizeof(*geth), GFP_KERNEL);
> if (!geth)
> return -ENOMEM;
> - res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res)
> - return -ENODEV;
> - geth->base = devm_ioremap_resource(dev, res);
> + geth->base = devm_platform_ioremap_resource(pdev, 0);
> if (IS_ERR(geth->base))
> return PTR_ERR(geth->base);
> geth->dev = dev;
> diff --git a/drivers/net/ethernet/lantiq_xrx200.c
> b/drivers/net/ethernet/lantiq_xrx200.c
> index 900affbdcc0e..0a7ea45b9e59 100644
> --- a/drivers/net/ethernet/lantiq_xrx200.c
> +++ b/drivers/net/ethernet/lantiq_xrx200.c
> @@ -424,7 +424,6 @@ static int xrx200_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> struct device_node *np = dev->of_node;
> - struct resource *res;
> struct xrx200_priv *priv;
> struct net_device *net_dev;
> const u8 *mac;
> @@ -443,15 +442,7 @@ static int xrx200_probe(struct platform_device *pdev)
> SET_NETDEV_DEV(net_dev, dev);
> net_dev->min_mtu = ETH_ZLEN;
> net_dev->max_mtu = XRX200_DMA_DATA_LEN;
> -
> - /* load the memory ranges */
> - res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - dev_err(dev, "failed to get resources\n");
> - return -ENOENT;
> - }
> -
> - priv->pmac_reg = devm_ioremap_resource(dev, res);
> + priv->pmac_reg = devm_platform_ioremap_resource(pdev, 0);
> if (IS_ERR(priv->pmac_reg)) {
> dev_err(dev, "failed to request and remap io ranges\n");
> return PTR_ERR(priv->pmac_reg);
> diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> index 4fc627fb4d11..92783aaaa0a2 100644
> --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> @@ -1787,14 +1787,7 @@ static int axienet_probe(struct platform_device
> *pdev)
> of_node_put(np);
> lp->eth_irq = platform_get_irq(pdev, 0);
> } else {
> - /* Check for these resources directly on the Ethernet node. */
> - struct resource *res = platform_get_resource(pdev,
> -
> IORESOURCE_MEM, 1);
> - if (!res) {
> - dev_err(&pdev->dev, "unable to get DMA memory
> resource\n");
> - goto free_netdev;
> - }
> - lp->dma_regs = devm_ioremap_resource(&pdev->dev, res);
> + lp->dma_regs = devm_platform_ioremap_resource(pdev, 1);
> lp->rx_irq = platform_get_irq(pdev, 1);
> lp->tx_irq = platform_get_irq(pdev, 0);
> lp->eth_irq = platform_get_irq(pdev, 2);
> --
> 2.23.0
