From: Andy Shevchenko Date: Mon, 9 Jul 2018 18:47:27 +0000 (+0300) Subject: gpiolib: Mark gpio_suffixes array with __maybe_unused X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=b23ec59926faf05b0c43680d05671c484e810ac4;p=openwrt%2Fstaging%2Fblogic.git gpiolib: Mark gpio_suffixes array with __maybe_unused Since we put static variable to a header file it's copied to each module that includes the header. But not all of them are actually used it. Mark gpio_suffixes array with __maybe_unused to hide a compiler warning: In file included from drivers/gpio/gpiolib-legacy.c:6:0: drivers/gpio/gpiolib.h:95:27: warning: ‘gpio_suffixes’ defined but not used [-Wunused-const-variable=] static const char * const gpio_suffixes[] = { "gpios", "gpio" }; ^~~~~~~~~~~~~ In file included from drivers/gpio/gpiolib-devprop.c:17:0: drivers/gpio/gpiolib.h:95:27: warning: ‘gpio_suffixes’ defined but not used [-Wunused-const-variable=] static const char * const gpio_suffixes[] = { "gpios", "gpio" }; ^~~~~~~~~~~~~ Signed-off-by: Andy Shevchenko Signed-off-by: Linus Walleij --- diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 1a8e20363861..a7e49fef73d4 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -92,7 +92,7 @@ struct acpi_gpio_info { }; /* gpio suffixes used for ACPI and device tree lookup */ -static const char * const gpio_suffixes[] = { "gpios", "gpio" }; +static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" }; #ifdef CONFIG_OF_GPIO struct gpio_desc *of_find_gpio(struct device *dev,