| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 143/173] gpiolib: Mark gpio_suffixes array with __maybe_unused | Date | Mon, 24 Sep 2018 13:52:57 +0200 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit b23ec59926faf05b0c43680d05671c484e810ac4 ]
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 <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpio/gpiolib.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -88,7 +88,7 @@ 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,
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