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Mon, 23 Jun 2025 02:00:17 -0700 (PDT) From: Bartosz Golaszewski Date: Mon, 23 Jun 2025 10:59:53 +0200 Subject: [PATCH v2 5/9] gpio: sysfs: rename the data variable in gpiod_(un)export() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250623-gpio-sysfs-chip-export-v2-5-d592793f8964@linaro.org> References: <20250623-gpio-sysfs-chip-export-v2-0-d592793f8964@linaro.org> In-Reply-To: <20250623-gpio-sysfs-chip-export-v2-0-d592793f8964@linaro.org> To: Ahmad Fatoum , Kent Gibson , =?utf-8?q?Jan_L=C3=BCbbe?= , Marek Vasut , Geert Uytterhoeven , Linus Walleij , Bartosz Golaszewski Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=5053; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=O3iMdnAGNEOg5c/O2kjNy+wYU+YsFdH7aQx5YLYylI4=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBoWReaLAPaPP5FpnqFOig4/0c+MPFs5mqraWG0Y WkUbQPj5B+JAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCaFkXmgAKCRARpy6gFHHX csxeEACwLSFlUsuBLuBU+i83AAUODvYUfoO8eH/PcaeVfVQxVfsFSdoyUt3IZUU62TqoHYHh3c8 dmEsqV1jKegLLJmHGYHqFtphDRUxJtOeN26jKsBqHmM9hAuQLZ5OLniDAfQYzHECG/MVgw8791D 4drOXiqF7FIJfiQqEWmisERkv7S4M3K/MjCc1jnngyD11akcteLNEw0tClPJzklUwOF1cL2gZe4 DKjc9CAWQgvtJmVX9hPiPjnGhY9sUuMUdBHGXKzbSEns7z9qosMmkaMdKREZddKc3HnRfnXjkVR khk8a8c6duh+O01HRshAZxgOzDuj1P2nV0IV7ljkK793fY8baIRWaN1sF7rtGDtNjkVyxfET9kM 5QvEC8uOiIIgXYtXkLvAJ+lFz6d5cxZNuFEmq1K4A+72Kq7mP8HaVeTe/M4H8mp72JiFoBvOVhk XMgvUY9/uiMyIqGuzw68k8EnJCzuEGRrsbAaOtzGqV7jGRa3FL42Y/fO1wNmxPhKXCe6D51hKSe a3qk1CLDNaUHLgQkE9T5N6/tJA9oSmku9HLElr1NbdPan2alToa/vkd2W3rOVRjd/1YDgqZpztl cB10XbahMe7niQYEMuXW2qRuRe+4WzRcPLiMDk33HACKwrMWneye2S/5ObgP0UefX+8VS7sPkDd nDj8qWiw20btQyA== X-Developer-Key: i=bartosz.golaszewski@linaro.org; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 From: Bartosz Golaszewski In preparation for future commits which will make use of descriptor AND GPIO-device data in the same functions rename the former from data to desc_data separately which will make future changes smaller and easier to read. Signed-off-by: Bartosz Golaszewski Reviewed-by: Linus Walleij --- drivers/gpio/gpiolib-sysfs.c | 63 ++++++++++++++++++++++------------------= ---- 1 file changed, 32 insertions(+), 31 deletions(-) diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c index 2f1df2ceb7360200c718ea95089720ebfa5a513a..515fd0d307cf820b036b1ea966b= 300715992359f 100644 --- a/drivers/gpio/gpiolib-sysfs.c +++ b/drivers/gpio/gpiolib-sysfs.c @@ -686,9 +686,9 @@ static void gpiod_attr_init(struct device_attribute *de= v_attr, const char *name, */ int gpiod_export(struct gpio_desc *desc, bool direction_may_change) { + struct gpiod_data *desc_data; struct gpio_device *gdev; struct attribute **attrs; - struct gpiod_data *data; struct device *dev; int status; =20 @@ -720,47 +720,48 @@ int gpiod_export(struct gpio_desc *desc, bool directi= on_may_change) goto err_clear_bit; } =20 - data =3D kzalloc(sizeof(*data), GFP_KERNEL); - if (!data) { + desc_data =3D kzalloc(sizeof(*desc_data), GFP_KERNEL); + if (!desc_data) { status =3D -ENOMEM; goto err_clear_bit; } =20 - data->desc =3D desc; - mutex_init(&data->mutex); + desc_data->desc =3D desc; + mutex_init(&desc_data->mutex); if (guard.gc->direction_input && guard.gc->direction_output) - data->direction_can_change =3D direction_may_change; + desc_data->direction_can_change =3D direction_may_change; else - data->direction_can_change =3D false; + desc_data->direction_can_change =3D false; =20 - gpiod_attr_init(&data->dir_attr, "direction", + gpiod_attr_init(&desc_data->dir_attr, "direction", direction_show, direction_store); - gpiod_attr_init(&data->val_attr, "value", value_show, value_store); - gpiod_attr_init(&data->edge_attr, "edge", edge_show, edge_store); - gpiod_attr_init(&data->active_low_attr, "active_low", - active_low_show, active_low_store); + gpiod_attr_init(&desc_data->val_attr, "value", value_show, value_store); + gpiod_attr_init(&desc_data->edge_attr, "edge", edge_show, edge_store); + gpiod_attr_init(&desc_data->active_low_attr, "active_low", + active_low_show, active_low_store); =20 - attrs =3D data->attrs; - data->attr_group.is_visible =3D gpio_is_visible; - attrs[GPIO_SYSFS_LINE_ATTR_DIRECTION] =3D &data->dir_attr.attr; - attrs[GPIO_SYSFS_LINE_ATTR_VALUE] =3D &data->val_attr.attr; - attrs[GPIO_SYSFS_LINE_ATTR_EDGE] =3D &data->edge_attr.attr; + attrs =3D desc_data->attrs; + desc_data->attr_group.is_visible =3D gpio_is_visible; + attrs[GPIO_SYSFS_LINE_ATTR_DIRECTION] =3D &desc_data->dir_attr.attr; + attrs[GPIO_SYSFS_LINE_ATTR_VALUE] =3D &desc_data->val_attr.attr; + attrs[GPIO_SYSFS_LINE_ATTR_EDGE] =3D &desc_data->edge_attr.attr; attrs[GPIO_SYSFS_LINE_ATTR_ACTIVE_LOW] =3D - &data->active_low_attr.attr; + &desc_data->active_low_attr.attr; =20 - data->attr_group.attrs =3D data->attrs; - data->attr_groups[0] =3D &data->attr_group; + desc_data->attr_group.attrs =3D desc_data->attrs; + desc_data->attr_groups[0] =3D &desc_data->attr_group; =20 dev =3D device_create_with_groups(&gpio_class, &gdev->dev, - MKDEV(0, 0), data, data->attr_groups, + MKDEV(0, 0), desc_data, + desc_data->attr_groups, "gpio%u", desc_to_gpio(desc)); if (IS_ERR(dev)) { status =3D PTR_ERR(dev); goto err_free_data; } =20 - data->value_class_node =3D sysfs_get_dirent(dev->kobj.sd, "value"); - if (!data->value_class_node) { + desc_data->value_class_node =3D sysfs_get_dirent(dev->kobj.sd, "value"); + if (!desc_data->value_class_node) { status =3D -ENODEV; goto err_unregister_device; } @@ -770,7 +771,7 @@ int gpiod_export(struct gpio_desc *desc, bool direction= _may_change) err_unregister_device: device_unregister(dev); err_free_data: - kfree(data); + kfree(desc_data); err_clear_bit: clear_bit(FLAG_EXPORT, &desc->flags); gpiod_dbg(desc, "%s: status %d\n", __func__, status); @@ -827,7 +828,7 @@ EXPORT_SYMBOL_GPL(gpiod_export_link); */ void gpiod_unexport(struct gpio_desc *desc) { - struct gpiod_data *data; + struct gpiod_data *desc_data; struct device *dev; =20 if (!desc) { @@ -843,22 +844,22 @@ void gpiod_unexport(struct gpio_desc *desc) if (!dev) return; =20 - data =3D dev_get_drvdata(dev); + desc_data =3D dev_get_drvdata(dev); clear_bit(FLAG_EXPORT, &desc->flags); - sysfs_put(data->value_class_node); + sysfs_put(desc_data->value_class_node); device_unregister(dev); =20 /* * Release irq after deregistration to prevent race with * edge_store. */ - if (data->irq_flags) - gpio_sysfs_free_irq(data); + if (desc_data->irq_flags) + gpio_sysfs_free_irq(desc_data); } =20 put_device(dev); - mutex_destroy(&data->mutex); - kfree(data); + mutex_destroy(&desc_data->mutex); + kfree(desc_data); } EXPORT_SYMBOL_GPL(gpiod_unexport); =20 --=20 2.48.1