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Signed-off-by: Rosen Penev --- drivers/net/ethernet/smsc/smsc911x.c | 47 +++++----------------------- 1 file changed, 7 insertions(+), 40 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index 74f1ccc96459..3d4356df0070 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -2319,7 +2319,6 @@ static void smsc911x_drv_remove(struct platform_devic= e *pdev) { struct net_device *dev; struct smsc911x_data *pdata; - struct resource *res; =20 dev =3D platform_get_drvdata(pdev); BUG_ON(!dev); @@ -2334,15 +2333,6 @@ static void smsc911x_drv_remove(struct platform_devi= ce *pdev) mdiobus_unregister(pdata->mii_bus); mdiobus_free(pdata->mii_bus); =20 - res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, - "smsc911x-memory"); - if (!res) - res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); - - release_mem_region(res->start, resource_size(res)); - - iounmap(pdata->ioaddr); - (void)smsc911x_disable_resources(pdev); smsc911x_free_resources(pdev); =20 @@ -2414,21 +2404,9 @@ static int smsc911x_drv_probe(struct platform_device= *pdev) struct net_device *dev; struct smsc911x_data *pdata; struct smsc911x_platform_config *config =3D dev_get_platdata(&pdev->dev); - struct resource *res; - int res_size, irq; + int irq; int retval; =20 - res =3D platform_get_resource_byname(pdev, IORESOURCE_MEM, - "smsc911x-memory"); - if (!res) - res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - pr_warn("Could not allocate resource\n"); - retval =3D -ENODEV; - goto out_0; - } - res_size =3D resource_size(res); - irq =3D platform_get_irq(pdev, 0); if (irq =3D=3D -EPROBE_DEFER) { retval =3D -EPROBE_DEFER; @@ -2439,24 +2417,17 @@ static int smsc911x_drv_probe(struct platform_devic= e *pdev) goto out_0; } =20 - if (!request_mem_region(res->start, res_size, SMSC_CHIPNAME)) { - retval =3D -EBUSY; - goto out_0; - } - dev =3D alloc_etherdev(sizeof(struct smsc911x_data)); - if (!dev) { - retval =3D -ENOMEM; - goto out_release_io_1; - } + if (!dev) + return -ENOMEM; =20 SET_NETDEV_DEV(dev, &pdev->dev); =20 pdata =3D netdev_priv(dev); dev->irq =3D irq; - pdata->ioaddr =3D ioremap(res->start, res_size); - if (!pdata->ioaddr) { - retval =3D -ENOMEM; + pdata->ioaddr =3D devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pdata->ioaddr)) { + retval =3D PTR_ERR(pdata->ioaddr); goto out_ioremap_fail; } =20 @@ -2467,7 +2438,7 @@ static int smsc911x_drv_probe(struct platform_device = *pdev) =20 retval =3D smsc911x_request_resources(pdev); if (retval) - goto out_request_resources_fail; + goto out_ioremap_fail; =20 retval =3D smsc911x_enable_resources(pdev); if (retval) @@ -2564,12 +2535,8 @@ static int smsc911x_drv_probe(struct platform_device= *pdev) (void)smsc911x_disable_resources(pdev); out_enable_resources_fail: smsc911x_free_resources(pdev); -out_request_resources_fail: - iounmap(pdata->ioaddr); out_ioremap_fail: free_netdev(dev); -out_release_io_1: - release_mem_region(res->start, resource_size(res)); 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charset="utf-8" Allows removal of various gotos and manual frees. Signed-off-by: Rosen Penev --- drivers/net/ethernet/smsc/smsc911x.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index 3d4356df0070..3b3295b4e9e5 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -2336,8 +2336,6 @@ static void smsc911x_drv_remove(struct platform_devic= e *pdev) (void)smsc911x_disable_resources(pdev); smsc911x_free_resources(pdev); =20 - free_netdev(dev); - pm_runtime_disable(&pdev->dev); } =20 @@ -2417,7 +2415,7 @@ static int smsc911x_drv_probe(struct platform_device = *pdev) goto out_0; } =20 - dev =3D alloc_etherdev(sizeof(struct smsc911x_data)); + dev =3D devm_alloc_etherdev(&pdev->dev, sizeof(struct smsc911x_data)); if (!dev) return -ENOMEM; =20 @@ -2426,10 +2424,8 @@ static int smsc911x_drv_probe(struct platform_device= *pdev) pdata =3D netdev_priv(dev); dev->irq =3D irq; pdata->ioaddr =3D devm_platform_ioremap_resource(pdev, 0); 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Mon, 30 Sep 2024 15:41:03 -0700 (PDT) Received: from ryzen.lan ([2601:644:8200:dab8::a86]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71b26515e40sm6786921b3a.117.2024.09.30.15.41.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2024 15:41:03 -0700 (PDT) From: Rosen Penev To: netdev@vger.kernel.org Cc: andrew@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-kernel@vger.kernel.org, steve.glendinning@shawell.net Subject: [PATCH net-next 3/8] net: smsc911x: use devm for regulators Date: Mon, 30 Sep 2024 15:40:51 -0700 Message-ID: <20240930224056.354349-4-rosenp@gmail.com> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20240930224056.354349-1-rosenp@gmail.com> References: <20240930224056.354349-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Allows to get rid of freeing functions. Signed-off-by: Rosen Penev --- drivers/net/ethernet/smsc/smsc911x.c | 106 +++------------------------ 1 file changed, 12 insertions(+), 94 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index 3b3295b4e9e5..68687df4eb3b 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -132,14 +132,8 @@ struct smsc911x_data { /* register access functions */ const struct smsc911x_ops *ops; =20 - /* regulators */ - struct regulator_bulk_data supplies[SMSC911X_NUM_SUPPLIES]; - /* Reset GPIO */ struct gpio_desc *reset_gpiod; - - /* clock */ - struct clk *clk; }; =20 /* Easy access to information */ @@ -369,41 +363,10 @@ smsc911x_rx_readfifo_shift(struct smsc911x_data *pdat= a, unsigned int *buf, */ static int smsc911x_enable_resources(struct platform_device *pdev) { - struct net_device *ndev =3D platform_get_drvdata(pdev); - struct smsc911x_data *pdata =3D netdev_priv(ndev); - int ret =3D 0; - - ret =3D regulator_bulk_enable(ARRAY_SIZE(pdata->supplies), - pdata->supplies); - if (ret) - netdev_err(ndev, "failed to enable regulators %d\n", - ret); + static const char *const supplies[] =3D { "vdd33a", "vddvario" }; =20 - if (!IS_ERR(pdata->clk)) { - ret =3D clk_prepare_enable(pdata->clk); - if (ret < 0) - netdev_err(ndev, "failed to enable clock %d\n", ret); - } - - return ret; -} - -/* - * disable resources, currently just regulators. - */ -static int smsc911x_disable_resources(struct platform_device *pdev) -{ - struct net_device *ndev =3D platform_get_drvdata(pdev); - struct smsc911x_data *pdata =3D netdev_priv(ndev); - int ret =3D 0; - - ret =3D regulator_bulk_disable(ARRAY_SIZE(pdata->supplies), - pdata->supplies); - - if (!IS_ERR(pdata->clk)) - clk_disable_unprepare(pdata->clk); - - return ret; + return devm_regulator_bulk_get_enable(&pdev->dev, ARRAY_SIZE(supplies), + supplies); } =20 /* @@ -417,24 +380,7 @@ static int smsc911x_request_resources(struct platform_= device *pdev) { struct net_device *ndev =3D platform_get_drvdata(pdev); struct smsc911x_data *pdata =3D netdev_priv(ndev); - int ret =3D 0; - - /* Request regulators */ - pdata->supplies[0].supply =3D "vdd33a"; - pdata->supplies[1].supply =3D "vddvario"; - ret =3D regulator_bulk_get(&pdev->dev, - ARRAY_SIZE(pdata->supplies), - pdata->supplies); - if (ret) { - /* - * Retry on deferrals, else just report the error - * and try to continue. - */ - if (ret =3D=3D -EPROBE_DEFER) - return ret; - netdev_err(ndev, "couldn't get regulators %d\n", - ret); - } + struct clk *clk; =20 /* Request optional RESET GPIO */ pdata->reset_gpiod =3D devm_gpiod_get_optional(&pdev->dev, @@ -442,32 +388,12 @@ static int smsc911x_request_resources(struct platform= _device *pdev) GPIOD_OUT_LOW); =20 /* Request clock */ - pdata->clk =3D clk_get(&pdev->dev, NULL); - if (IS_ERR(pdata->clk)) - dev_dbg(&pdev->dev, "couldn't get clock %li\n", - PTR_ERR(pdata->clk)); - - return ret; -} - -/* - * Free resources, currently just regulators. - * - */ -static void smsc911x_free_resources(struct platform_device *pdev) -{ - struct net_device *ndev =3D platform_get_drvdata(pdev); - struct smsc911x_data *pdata =3D netdev_priv(ndev); + clk =3D devm_clk_get_optional(&pdev->dev, NULL); + if (IS_ERR(clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(clk), + "couldn't get clock"); =20 - /* Free regulators */ - regulator_bulk_free(ARRAY_SIZE(pdata->supplies), - pdata->supplies); - - /* Free clock */ - if (!IS_ERR(pdata->clk)) { - clk_put(pdata->clk); - pdata->clk =3D NULL; - } + return 0; } =20 /* waits for MAC not busy, with timeout. Only called by smsc911x_mac_read @@ -2333,9 +2259,6 @@ static void smsc911x_drv_remove(struct platform_devic= e *pdev) mdiobus_unregister(pdata->mii_bus); mdiobus_free(pdata->mii_bus); =20 - (void)smsc911x_disable_resources(pdev); - smsc911x_free_resources(pdev); - pm_runtime_disable(&pdev->dev); } =20 @@ -2438,12 +2361,11 @@ static int smsc911x_drv_probe(struct platform_devic= e *pdev) =20 retval =3D smsc911x_enable_resources(pdev); if (retval) - goto out_enable_resources_fail; + return retval; =20 if (pdata->ioaddr =3D=3D NULL) { SMSC_WARN(pdata, probe, "Error smsc911x base address invalid"); - retval =3D -ENOMEM; - goto out_disable_resources; + return -ENOMEM; } =20 retval =3D smsc911x_probe_config(&pdata->config, &pdev->dev); @@ -2455,7 +2377,7 @@ static int smsc911x_drv_probe(struct platform_device = *pdev) =20 if (retval) { SMSC_WARN(pdata, probe, "Error smsc911x config not found"); - goto out_disable_resources; + return retval; } =20 /* assume standard, non-shifted, access to HW registers */ @@ -2527,10 +2449,6 @@ static int smsc911x_drv_probe(struct platform_device= *pdev) out_init_fail: pm_runtime_put(&pdev->dev); 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charset="utf-8" Frees are missing in _probe for these. OTOH simpler to use devm. Signed-off-by: Rosen Penev --- drivers/net/ethernet/smsc/smsc911x.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index 68687df4eb3b..843e3606c2ea 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -991,13 +991,10 @@ static int smsc911x_mii_init(struct platform_device *= pdev, { struct smsc911x_data *pdata =3D netdev_priv(dev); struct phy_device *phydev; - int err =3D -ENXIO; =20 - pdata->mii_bus =3D mdiobus_alloc(); - if (!pdata->mii_bus) { - err =3D -ENOMEM; - goto err_out_1; - } + pdata->mii_bus =3D devm_mdiobus_alloc(&pdev->dev); + if (!pdata->mii_bus) + return -ENOMEM; =20 pdata->mii_bus->name =3D SMSC_MDIONAME; snprintf(pdata->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x", @@ -1028,9 +1025,9 @@ static int smsc911x_mii_init(struct platform_device *= pdev, pdata->mii_bus->phy_mask =3D ~(1 << 1); } =20 - if (mdiobus_register(pdata->mii_bus)) { + if (devm_mdiobus_register(&pdev->dev, pdata->mii_bus)) { SMSC_WARN(pdata, probe, "Error registering mii bus"); 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Signed-off-by: Rosen Penev --- drivers/net/ethernet/smsc/smsc911x.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index 843e3606c2ea..4e0a277a5ee3 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -2246,8 +2246,6 @@ static void smsc911x_drv_remove(struct platform_devic= e *pdev) =20 SMSC_TRACE(pdata, ifdown, "Stopping driver"); =20 - unregister_netdev(dev); - pm_runtime_disable(&pdev->dev); } =20 @@ -2390,7 +2388,7 @@ static int smsc911x_drv_probe(struct platform_device = *pdev) goto out_init_fail; } =20 - retval =3D register_netdev(dev); + retval =3D devm_register_netdev(&pdev->dev, dev); if (retval) { SMSC_WARN(pdata, probe, "Error %i registering device", retval); goto out_init_fail; --=20 2.46.2 From nobody Thu Nov 28 13:41:21 2024 Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A85D21A2871; 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Now only contains a single call to pm_runtime_disable. Signed-off-by: Rosen Penev --- drivers/net/ethernet/smsc/smsc911x.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index 4e0a277a5ee3..e757c5825620 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -2235,17 +2235,6 @@ static int smsc911x_init(struct net_device *dev) =20 static void smsc911x_drv_remove(struct platform_device *pdev) { - struct net_device *dev; - struct smsc911x_data *pdata; - - dev =3D platform_get_drvdata(pdev); - BUG_ON(!dev); - pdata =3D netdev_priv(dev); - BUG_ON(!pdata); - BUG_ON(!pdata->ioaddr); - - SMSC_TRACE(pdata, ifdown, "Stopping driver"); - pm_runtime_disable(&pdev->dev); } =20 --=20 2.46.2 From nobody Thu Nov 28 13:41:21 2024 Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A65C1A3055; 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Mon, 30 Sep 2024 15:41:09 -0700 (PDT) Received: from ryzen.lan ([2601:644:8200:dab8::a86]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71b26515e40sm6786921b3a.117.2024.09.30.15.41.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2024 15:41:08 -0700 (PDT) From: Rosen Penev To: netdev@vger.kernel.org Cc: andrew@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-kernel@vger.kernel.org, steve.glendinning@shawell.net Subject: [PATCH net-next 7/8] net: smsc91xx: move down struct members Date: Mon, 30 Sep 2024 15:40:55 -0700 Message-ID: <20240930224056.354349-8-rosenp@gmail.com> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20240930224056.354349-1-rosenp@gmail.com> References: <20240930224056.354349-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" These are only used in these functions. Signed-off-by: Rosen Penev Reviewed-by: Kalesh AP --- drivers/net/ethernet/smsc/smsc911x.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index e757c5825620..5eea873db853 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -131,9 +131,6 @@ struct smsc911x_data { =20 /* register access functions */ const struct smsc911x_ops *ops; - - /* Reset GPIO */ - struct gpio_desc *reset_gpiod; }; =20 /* Easy access to information */ @@ -378,14 +375,12 @@ static int smsc911x_enable_resources(struct platform_= device *pdev) */ static int smsc911x_request_resources(struct platform_device *pdev) { - struct net_device *ndev =3D platform_get_drvdata(pdev); - struct smsc911x_data *pdata =3D netdev_priv(ndev); + struct gpio_desc *reset_gpiod; struct clk *clk; =20 /* Request optional RESET GPIO */ - pdata->reset_gpiod =3D devm_gpiod_get_optional(&pdev->dev, - "reset", - GPIOD_OUT_LOW); 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charset="utf-8" ioaddr can never be NULL. Probe aborts in such a case. Signed-off-by: Rosen Penev Reviewed-by: Kalesh AP --- drivers/net/ethernet/smsc/smsc911x.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/sm= sc/smsc911x.c index 5eea873db853..a74c3f9f7110 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -2105,11 +2105,6 @@ static int smsc911x_init(struct net_device *dev) spin_lock_init(&pdata->dev_lock); spin_lock_init(&pdata->mac_lock); =20 - if (pdata->ioaddr =3D=3D NULL) { - SMSC_WARN(pdata, probe, "pdata->ioaddr: 0x00000000"); - return -ENODEV; - } - /* * poll the READY bit in PMT_CTRL. Any other access to the device is * forbidden while this bit isn't set. Try for 100ms @@ -2334,11 +2329,6 @@ static int smsc911x_drv_probe(struct platform_device= *pdev) if (retval) return retval; =20 - if (pdata->ioaddr =3D=3D NULL) { - SMSC_WARN(pdata, probe, "Error smsc911x base address invalid"); - return -ENOMEM; - } - retval =3D smsc911x_probe_config(&pdata->config, &pdev->dev); if (retval && config) { /* copy config parameters across to pdata */ --=20 2.46.2