MNAME = hello
BDIR = /home/devel/work/build-linux

ifeq ($(KERNELRELEASE),)
# called from shell

.PHONY: default clean

default:
	make -C $(BDIR) M=$(shell pwd) modules

clean:
	rm -rf $(MNAME).mod.* $(MNAME).*o .$(MNAME)* .tmp* Module.symvers modules.order

else
# called from kernel Makefile

	obj-m := $(MNAME).o
endif