Cleaned up Makefile to modern standards. Signed-off-by: Rosen Penev <rosenp@gmail.com>
The SUBDIRS variable has been removed in kernel 5.4, and was deprecated since the beginnig of kernel git history in favour of M or KBUILD_EXTMOD. Signed-off-by: David Bauer <mail@david-bauer.net>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>