techpack-dirs := $(shell find $(srctree)/$(src) -maxdepth 1 -mindepth 1 -type d -not -name ".*")
obj-y += stub/ $(addsuffix /,$(subst $(srctree)/$(src)/,,$(techpack-dirs)))

techpack-header-dirs := $(shell find $(srctree)/techpack -maxdepth 1 -mindepth 1 -type d -not -name ".*")
header-y += $(addsuffix /include/uapi/,$(subst $(srctree)/techpack/,,$(techpack-header-dirs)))