There is no need to have and export the count variable for the array in question. Instead, make it NULL-terminated. Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> --- drivers/gpio/gpiolib.c | 3 +-- drivers/gpio/gpiolib.h | 11 +++++------ 2 files changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 3a9668cc100d..3903d0a75304 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -90,8 +90,7 @@ DEFINE_STATIC_SRCU(gpio_devices_srcu); static DEFINE_MUTEX(gpio_machine_hogs_mutex); static LIST_HEAD(gpio_machine_hogs); -const char *const gpio_suffixes[] = { "gpios", "gpio" }; -const size_t gpio_suffix_count = ARRAY_SIZE(gpio_suffixes); +const char *const gpio_suffixes[] = { "gpios", "gpio", NULL }; static void gpiochip_free_hogs(struct gpio_chip *gc); static int gpiochip_add_irqchip(struct gpio_chip *gc, diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 0271e747fb6e..067197d61d57 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -89,14 +89,13 @@ 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 */ +/* GPIO suffixes used for ACPI and device tree lookup */ extern const char *const gpio_suffixes[]; -extern const size_t gpio_suffix_count; #define for_each_gpio_property_name(propname, con_id) \ - for (unsigned int __i = 0; \ - __i < gpio_suffix_count && ({ \ - const char *__gs = gpio_suffixes[__i]; \ + for (const char * const *__suffixes = gpio_suffixes; \ + *__suffixes && ({ \ + const char *__gs = *__suffixes; \ \ if (con_id) \ snprintf(propname, sizeof(propname), "%s-%s", con_id, __gs); \ @@ -104,7 +103,7 @@ extern const size_t gpio_suffix_count; snprintf(propname, sizeof(propname), "%s", __gs); \ 1; \ }); \ - __i++) + __suffixes++) /** * struct gpio_array - Opaque descriptor for a structure of GPIO array attributes -- 2.43.0.rc1.1336.g36b5255a03ac