ifneq ($(KERNELRELEASE),) obj-m += ec-reboot.o ec-reboot-objs := ec_reboot.o else KERNEL_DIR ?= /lib/modules/$(shell uname -r)/build PWD := $(shell pwd) all: $(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules clean: $(MAKE) -C $(KERNEL_DIR) M=$(PWD) clean endif