From 00f7f90c51dfc2403257e2c7410d453e72bf6a41 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 22 Sep 2016 11:48:00 +0200 Subject: rtc: cmos: avoid unused function warning A bug fix for the ACPI side of this driver caused a harmless build warning: drivers/rtc/rtc-cmos.c:1115:13: error: 'cmos_check_acpi_rtc_status' defined but not used [-Werror=unused-function] static void cmos_check_acpi_rtc_status(struct device *dev, We can avoid the warning and simplify the driver at the same time by removing the #ifdef for CONFIG_PM and rely on the SIMPLE_DEV_PM_OPS() to set everything up correctly. cmos_resume() has to get marked as __maybe_unused so we don't introduce another warning, and the two variants of cmos_poweroff() can get merged into one using an IS_ENABLED() check. Fixes: 983bf1256edb ("rtc: cmos: Clear ACPI-driven alarms upon resume") Signed-off-by: Arnd Bergmann Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-cmos.c | 21 ++++----------------- 1 file changed, 4 insertions(+), 17 deletions(-) (limited to 'drivers/rtc/rtc-cmos.c') diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index 2943a0d58a3a..dd3d59806ffa 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -848,8 +848,6 @@ static int cmos_aie_poweroff(struct device *dev) return retval; } -#ifdef CONFIG_PM - static int cmos_suspend(struct device *dev) { struct cmos_rtc *cmos = dev_get_drvdata(dev); @@ -898,11 +896,12 @@ static int cmos_suspend(struct device *dev) */ static inline int cmos_poweroff(struct device *dev) { + if (!IS_ENABLED(CONFIG_PM)) + return -ENOSYS; + return cmos_suspend(dev); } -#ifdef CONFIG_PM_SLEEP - static void cmos_check_wkalrm(struct device *dev) { struct cmos_rtc *cmos = dev_get_drvdata(dev); @@ -922,7 +921,7 @@ static void cmos_check_wkalrm(struct device *dev) static void cmos_check_acpi_rtc_status(struct device *dev, unsigned char *rtc_control); -static int cmos_resume(struct device *dev) +static int __maybe_unused cmos_resume(struct device *dev) { struct cmos_rtc *cmos = dev_get_drvdata(dev); unsigned char tmp; @@ -975,16 +974,6 @@ static int cmos_resume(struct device *dev) return 0; } -#endif -#else - -static inline int cmos_poweroff(struct device *dev) -{ - return -ENOSYS; -} - -#endif - static SIMPLE_DEV_PM_OPS(cmos_pm_ops, cmos_suspend, cmos_resume); /*----------------------------------------------------------------*/ @@ -1278,9 +1267,7 @@ static struct platform_driver cmos_platform_driver = { .shutdown = cmos_platform_shutdown, .driver = { .name = driver_name, -#ifdef CONFIG_PM .pm = &cmos_pm_ops, -#endif .of_match_table = of_match_ptr(of_cmos_match), } }; -- cgit v1.2.3