From 3b7c7478eda00945987d45f902bc3942c89243d3 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 28 Nov 2022 21:00:54 +0200 Subject: [PATCH] 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 Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpiolib.c | 2 +- drivers/gpio/gpiolib.h | 9 +++++++-- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 2729f7e..0058ee8 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -549,7 +549,7 @@ 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 d900ecd..e443c10 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 +72,11 @@ struct gpio_device { #endif }; +static inline struct gpio_device *to_gpio_device(struct device *dev) +{ + return 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" }; -- 2.7.4