1*62ae4568SJani Nikula# SPDX-License-Identifier: GPL-2.0 2*62ae4568SJani Nikula 3*62ae4568SJani Nikula# Ensure drm headers are self-contained and pass kernel-doc 4*62ae4568SJani Nikulahdrtest-files := \ 5*62ae4568SJani Nikula $(shell cd $(src) && find * -name '*.h' 2>/dev/null) 6*62ae4568SJani Nikula 7*62ae4568SJani Nikulaalways-$(CONFIG_DRM_HEADER_TEST) += \ 8*62ae4568SJani Nikula $(patsubst %.h,%.hdrtest, $(hdrtest-files)) 9*62ae4568SJani Nikula 10*62ae4568SJani Nikula# Include the header twice to detect missing include guard. 11*62ae4568SJani Nikulaquiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@) 12*62ae4568SJani Nikula cmd_hdrtest = \ 13*62ae4568SJani Nikula $(CC) $(c_flags) -fsyntax-only -x c /dev/null -include $< -include $<; \ 14*62ae4568SJani Nikula $(srctree)/scripts/kernel-doc -none $(if $(CONFIG_WERROR)$(CONFIG_DRM_WERROR),-Werror) $<; \ 15*62ae4568SJani Nikula touch $@ 16*62ae4568SJani Nikula 17*62ae4568SJani Nikula$(obj)/%.hdrtest: $(src)/%.h FORCE 18*62ae4568SJani Nikula $(call if_changed_dep,hdrtest) 19