On Mon, Jul 29, 2019 at 11:14:55AM +0800, YueHaibing wrote: > If CONFIG_KEYBOARD_APPLESPI=y but CONFIG_LEDS_CLASS=m > building fails: > > drivers/input/keyboard/applespi.o: In function `applespi_probe': > applespi.c:(.text+0x1fcd): undefined reference to `devm_led_classdev_register_ext' > > Wrap it in LEDS_CLASS macro to fix this. No, we should add "depends on LEDS_CLASS" to the Konfig instead. Thanks. -- Dmitry