KERNELRELEASE ?= $(shell uname -r) KERNEL_DIR ?= /lib/modules/$(KERNELRELEASE)/build PWD := $(shell pwd) obj-m := trelay.o all: $(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules install: $(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules_install clean: $(MAKE) -C $(KERNEL_DIR) M=$(PWD) clean