This solves: >> drivers/clk/sunxi-ng/ccu-sun6i-rtc.c:334:5: warning: no previous prototype for 'sun6i_rtc_ccu_probe' [-Wmissing-prototypes] 334 | int sun6i_rtc_ccu_probe(struct device *dev, void __iomem *reg) | ^~~~~~~~~~~~~~~~~~~ Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> --- drivers/clk/sunxi-ng/ccu-sun6i-rtc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c index 712fda22efd5..8a10bade7e0d 100644 --- a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c +++ b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c @@ -9,6 +9,8 @@ #include <linux/module.h> #include <linux/of_device.h> +#include <linux/clk/sunxi-ng.h> + #include "ccu_common.h" #include "ccu_div.h" -- 2.35.1