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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2025-06-20 14:58:01 +0200
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2025-06-30 08:58:26 +0200
commit08ad63bbd681ae4eeb50644564435035c38e5795 (patch)
tree26a6cca3cc0c653e53bcfe42e47a7bbaff5cea5f
parentgpio: rcar: Use new line value setter callbacks (diff)
downloadwireguard-linux-08ad63bbd681ae4eeb50644564435035c38e5795.tar.xz
wireguard-linux-08ad63bbd681ae4eeb50644564435035c38e5795.zip
gpio: constify arguments of gpiod_is_equal()
This function is not meant to modify the GPIO descriptors in any way so we can safely constify both arguments. Link: https://lore.kernel.org/r/20250620-gpiod-is-equal-improv-v1-1-a75060505d2c@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
-rw-r--r--drivers/gpio/gpiolib.c2
-rw-r--r--include/linux/gpio/consumer.h5
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 5b0b4fc97543..6b4f94c3887f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -286,7 +286,7 @@ EXPORT_SYMBOL_GPL(gpiod_to_gpio_device);
* Returns:
* True if the descriptors refer to the same physical pin. False otherwise.
*/
-bool gpiod_is_equal(struct gpio_desc *desc, struct gpio_desc *other)
+bool gpiod_is_equal(const struct gpio_desc *desc, const struct gpio_desc *other)
{
return desc == other;
}
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index f0b1982da0cc..00df68c51405 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -181,7 +181,8 @@ struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev,
enum gpiod_flags flags,
const char *label);
-bool gpiod_is_equal(struct gpio_desc *desc, struct gpio_desc *other);
+bool gpiod_is_equal(const struct gpio_desc *desc,
+ const struct gpio_desc *other);
#else /* CONFIG_GPIOLIB */
@@ -551,7 +552,7 @@ struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev,
}
static inline bool
-gpiod_is_equal(struct gpio_desc *desc, struct gpio_desc *other)
+gpiod_is_equal(const struct gpio_desc *desc, const struct gpio_desc *other)
{
WARN_ON(desc || other);
return false;