From 9db2426a324ea4aceea071b3069108840a3fa3fe Mon Sep 17 00:00:00 2001 From: Philipp Stanner Date: Mon, 24 Mar 2025 10:29:28 +0100 Subject: stmmac: loongson: Remove surplus loop loongson_dwmac_probe() contains a loop which doesn't have an effect, because it tries to call pcim_iomap_regions() with the same parameters several times. The break statement at the loop's end furthermore ensures that the loop only runs once anyways. Remove the surplus loop. Signed-off-by: Philipp Stanner Reviewed-by: Andrew Lunn Reviewed-by: Yanteng Si Reviewed-by: Huacai Chen Tested-by: Henry Chen Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20250324092928.9482-4-phasta@kernel.org Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index f1c62f237e58..7e8495547934 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -536,7 +536,7 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id struct stmmac_pci_info *info; struct stmmac_resources res; struct loongson_data *ld; - int ret, i; + int ret; plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL); if (!plat) @@ -566,14 +566,9 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id pci_set_master(pdev); /* Get the base address of device */ - for (i = 0; i < PCI_STD_NUM_BARS; i++) { - if (pci_resource_len(pdev, i) == 0) - continue; - ret = pcim_iomap_regions(pdev, BIT(0), DRIVER_NAME); - if (ret) - goto err_disable_device; - break; - } + ret = pcim_iomap_regions(pdev, BIT(0), DRIVER_NAME); + if (ret) + goto err_disable_device; memset(&res, 0, sizeof(res)); res.addr = pcim_iomap_table(pdev)[0]; -- cgit v1.2.3 From d327a12e636e902fd0c7178732813b041a1c9214 Mon Sep 17 00:00:00 2001 From: Philipp Stanner Date: Mon, 24 Mar 2025 10:29:29 +0100 Subject: stmmac: Remove pcim_* functions for driver detach Functions prefixed with "pcim_" are managed devres functions which perform automatic cleanup once the driver unloads. It is, thus, not necessary to call any cleanup functions in remove() callbacks. Remove the pcim_ cleanup function calls in the remove() callbacks. Signed-off-by: Philipp Stanner Reviewed-by: Andrew Lunn Reviewed-by: Yanteng Si Tested-by: Henry Chen Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20250324092928.9482-5-phasta@kernel.org Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 8 -------- drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 12 +----------- 2 files changed, 1 insertion(+), 19 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index 7e8495547934..e015e54d9190 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -619,7 +619,6 @@ static void loongson_dwmac_remove(struct pci_dev *pdev) struct net_device *ndev = dev_get_drvdata(&pdev->dev); struct stmmac_priv *priv = netdev_priv(ndev); struct loongson_data *ld; - int i; ld = priv->plat->bsp_priv; stmmac_dvr_remove(&pdev->dev); @@ -630,13 +629,6 @@ static void loongson_dwmac_remove(struct pci_dev *pdev) if (ld->loongson_id == DWMAC_CORE_LS_MULTICHAN) loongson_dwmac_msi_clear(pdev); - for (i = 0; i < PCI_STD_NUM_BARS; i++) { - if (pci_resource_len(pdev, i) == 0) - continue; - pcim_iounmap_regions(pdev, BIT(i)); - break; - } - pci_disable_device(pdev); } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c index 352b01678c22..1637c8139b9d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c @@ -226,21 +226,11 @@ static int stmmac_pci_probe(struct pci_dev *pdev, * stmmac_pci_remove * * @pdev: platform device pointer - * Description: this function calls the main to free the net resources - * and releases the PCI resources. + * Description: this function calls the main to free the net resources. */ static void stmmac_pci_remove(struct pci_dev *pdev) { - int i; - stmmac_dvr_remove(&pdev->dev); - - for (i = 0; i < PCI_STD_NUM_BARS; i++) { - if (pci_resource_len(pdev, i) == 0) - continue; - pcim_iounmap_regions(pdev, BIT(i)); - break; - } } static int __maybe_unused stmmac_pci_suspend(struct device *dev) -- cgit v1.2.3 From 45b761689a281f19060939facdd35894f2b43307 Mon Sep 17 00:00:00 2001 From: Philipp Stanner Date: Mon, 24 Mar 2025 10:29:30 +0100 Subject: stmmac: Replace deprecated PCI functions The PCI functions - pcim_iomap_regions() and - pcim_iomap_table() have been deprecated. Replace them with their successor function, pcim_iomap_region(). Make variable declaration order at closeby places comply with reverse christmas tree order. Reviewed-by: Andrew Lunn Reviewed-by: Huacai Chen Tested-by: Henry Chen Signed-off-by: Philipp Stanner Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20250324092928.9482-6-phasta@kernel.org Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 8 +++----- drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 12 +++++------- 2 files changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index e015e54d9190..1a93787056a7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -533,8 +533,8 @@ static int loongson_dwmac_fix_reset(void *priv, void __iomem *ioaddr) static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct plat_stmmacenet_data *plat; + struct stmmac_resources res = {}; struct stmmac_pci_info *info; - struct stmmac_resources res; struct loongson_data *ld; int ret; @@ -566,13 +566,11 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id pci_set_master(pdev); /* Get the base address of device */ - ret = pcim_iomap_regions(pdev, BIT(0), DRIVER_NAME); + res.addr = pcim_iomap_region(pdev, 0, DRIVER_NAME); + ret = PTR_ERR_OR_ZERO(res.addr); if (ret) goto err_disable_device; - memset(&res, 0, sizeof(res)); - res.addr = pcim_iomap_table(pdev)[0]; - plat->bsp_priv = ld; plat->setup = loongson_dwmac_setup; plat->fix_soc_reset = loongson_dwmac_fix_reset; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c index 1637c8139b9d..9c1b54b701f7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c @@ -155,9 +155,9 @@ static int stmmac_pci_probe(struct pci_dev *pdev, { struct stmmac_pci_info *info = (struct stmmac_pci_info *)id->driver_data; struct plat_stmmacenet_data *plat; - struct stmmac_resources res; - int i; + struct stmmac_resources res = {}; int ret; + int i; plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL); if (!plat) @@ -192,9 +192,9 @@ static int stmmac_pci_probe(struct pci_dev *pdev, for (i = 0; i < PCI_STD_NUM_BARS; i++) { if (pci_resource_len(pdev, i) == 0) continue; - ret = pcim_iomap_regions(pdev, BIT(i), pci_name(pdev)); - if (ret) - return ret; + res.addr = pcim_iomap_region(pdev, i, STMMAC_RESOURCE_NAME); + if (IS_ERR(res.addr)) + return PTR_ERR(res.addr); break; } @@ -204,8 +204,6 @@ static int stmmac_pci_probe(struct pci_dev *pdev, if (ret) return ret; - memset(&res, 0, sizeof(res)); - res.addr = pcim_iomap_table(pdev)[i]; res.wol_irq = pdev->irq; res.irq = pdev->irq; -- cgit v1.2.3