From: Arnd Bergmann Date: Fri, 17 Feb 2017 15:13:44 +0000 (+0100) Subject: gpio: xgene: mark PM functions as __maybe_unused X-Git-Tag: v4.4.118~48 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac331bd2f61b5ea6f74f04c41d8e2caf01f9d243;p=thirdparty%2Fkernel%2Fstable.git gpio: xgene: mark PM functions as __maybe_unused commit b115bebc07f282067eccc06fd5aa3060ab1426da upstream. When CONFIG_PM_SLEEP is disabled, we get a warning about unused functions: drivers/gpio/gpio-xgene.c:155:12: warning: 'xgene_gpio_resume' defined but not used [-Wunused-function] static int xgene_gpio_resume(struct device *dev) ^~~~~~~~~~~~~~~~~ drivers/gpio/gpio-xgene.c:142:12: warning: 'xgene_gpio_suspend' defined but not used [-Wunused-function] static int xgene_gpio_suspend(struct device *dev) The warnings are harmless and can be avoided by simplifying the code and marking the functions as __maybe_unused. Signed-off-by: Arnd Bergmann Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpio/gpio-xgene.c b/drivers/gpio/gpio-xgene.c index 18a8182d4fec2..7f1f32324504c 100644 --- a/drivers/gpio/gpio-xgene.c +++ b/drivers/gpio/gpio-xgene.c @@ -42,9 +42,7 @@ struct xgene_gpio { struct gpio_chip chip; void __iomem *base; spinlock_t lock; -#ifdef CONFIG_PM u32 set_dr_val[XGENE_MAX_GPIO_BANKS]; -#endif }; static inline struct xgene_gpio *to_xgene_gpio(struct gpio_chip *chip) @@ -132,8 +130,7 @@ static int xgene_gpio_dir_out(struct gpio_chip *gc, return 0; } -#ifdef CONFIG_PM -static int xgene_gpio_suspend(struct device *dev) +static __maybe_unused int xgene_gpio_suspend(struct device *dev) { struct xgene_gpio *gpio = dev_get_drvdata(dev); unsigned long bank_offset; @@ -146,7 +143,7 @@ static int xgene_gpio_suspend(struct device *dev) return 0; } -static int xgene_gpio_resume(struct device *dev) +static __maybe_unused int xgene_gpio_resume(struct device *dev) { struct xgene_gpio *gpio = dev_get_drvdata(dev); unsigned long bank_offset; @@ -160,10 +157,6 @@ static int xgene_gpio_resume(struct device *dev) } static SIMPLE_DEV_PM_OPS(xgene_gpio_pm, xgene_gpio_suspend, xgene_gpio_resume); -#define XGENE_GPIO_PM_OPS (&xgene_gpio_pm) -#else -#define XGENE_GPIO_PM_OPS NULL -#endif static int xgene_gpio_probe(struct platform_device *pdev) { @@ -230,7 +223,7 @@ static struct platform_driver xgene_gpio_driver = { .driver = { .name = "xgene-gpio", .of_match_table = xgene_gpio_of_match, - .pm = XGENE_GPIO_PM_OPS, + .pm = &xgene_gpio_pm, }, .probe = xgene_gpio_probe, .remove = xgene_gpio_remove,