Non-static functions should have a prototype: drivers/rtc/rtc-omap.c:410:5: error: no previous prototype for ‘omap_rtc_power_off_program’ [-Werror=missing-prototypes] Fixes: 6256f7f7f217 ("rtc: OMAP: Add support for rtc-only mode") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/rtc/rtc-omap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index 4d4f3b1a7309..73634a3ccfd3 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -25,6 +25,7 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/rtc.h> +#include <linux/rtc/rtc-omap.h> /* * The OMAP RTC is a year/month/day/hours/minutes/seconds BCD clock -- 2.34.1