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Message-Id: <20221125181158.67265-1-andriy.shevchenko@linux.intel.com> Date: Fri, 25 Nov 2022 20:11:57 +0200 From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Bartosz Golaszewski <brgl@...ev.pl>, linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org Cc: Linus Walleij <linus.walleij@...aro.org> Subject: [PATCH v1 1/2] gpiolib: Provide to_gpio_device() helper Provide to_gpio_device() helper which can be utilized in the existing and future code. While at it, make sure it becomes no-op at compilation time. Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> --- drivers/gpio/gpiolib.c | 2 +- drivers/gpio/gpiolib.h | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 119c9c3a2a50..9b935288db9d 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -547,7 +547,7 @@ EXPORT_SYMBOL_GPL(gpiochip_line_is_valid); static void gpiodevice_release(struct device *dev) { - struct gpio_device *gdev = container_of(dev, struct gpio_device, dev); + struct gpio_device *gdev = to_gpio_device(dev); unsigned long flags; spin_lock_irqsave(&gpio_lock, flags); diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index d900ecdbac46..027674025561 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -20,9 +20,9 @@ /** * struct gpio_device - internal state container for GPIO devices - * @id: numerical ID number for the GPIO chip * @dev: the GPIO device struct * @chrdev: character device for the GPIO device + * @id: numerical ID number for the GPIO chip * @mockdev: class device used by the deprecated sysfs interface (may be * NULL) * @owner: helps prevent removal of modules exporting active GPIOs @@ -47,9 +47,9 @@ * userspace. */ struct gpio_device { - int id; struct device dev; struct cdev chrdev; + int id; struct device *mockdev; struct module *owner; struct gpio_chip *chip; @@ -72,6 +72,8 @@ struct gpio_device { #endif }; +#define to_gpio_device(_dev_) container_of(_dev_, struct gpio_device, dev) + /* gpio suffixes used for ACPI and device tree lookup */ static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" }; -- 2.35.1
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