$(CC) with $(CFLAGS_GCOV) assumes the output filename with .gcno suffix appended is writable. This is not the case when the output filename is /dev/null: HDRTEST drivers/gpu/drm/i915/display/intel_frontbuffer.h /dev/null:1:0: error: cannot open /dev/null.gcno HDRTEST drivers/gpu/drm/i915/display/intel_ddi.h /dev/null:1:0: error: cannot open /dev/null.gcno make[5]: *** [../drivers/gpu/drm/i915/Makefile:307: drivers/gpu/drm/i915/display/intel_ddi.hdrtest] Error 1 make[5]: *** Waiting for unfinished jobs.... make[5]: *** [../drivers/gpu/drm/i915/Makefile:307: drivers/gpu/drm/i915/display/intel_frontbuffer.hdrtest] Error 1 Filter out $(CFLAGS_GVOC) from the header test $(c_flags) as they don't make sense here anyway. References: http://lore.kernel.org/r/d8112767-4089-4c58-d7d3-2ce03139858a@xxxxxxxxxxxxx Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Fixes: c6d4a099a240 ("drm/i915: reimplement header test feature") Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> --- drivers/gpu/drm/i915/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index b314d44ded5e..bc28c31c4f78 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -301,7 +301,7 @@ extra-$(CONFIG_DRM_I915_WERROR) += \ $(shell cd $(srctree)/$(src) && find * -name '*.h'))) quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@) - cmd_hdrtest = $(CC) $(c_flags) -S -o /dev/null -x c /dev/null -include $<; touch $@ + cmd_hdrtest = $(CC) $(filter-out $(CFLAGS_GCOV), $(c_flags)) -S -o /dev/null -x c /dev/null -include $<; touch $@ $(obj)/%.hdrtest: $(src)/%.h FORCE $(call if_changed_dep,hdrtest) -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
