On Thu, 20 Feb 2020, Randy Dunlap rdunlap@infradead.org wrote:

On 2/19/20 7:51 PM, akpm@linux-foundation.org wrote:

...

The mm-of-the-moment snapshot 2020-02-19-19-51 has been uploaded to

http://www.ozlabs.org/~akpm/mmotm/

mmotm-readme.txt says

README for mm-of-the-moment:

http://www.ozlabs.org/~akpm/mmotm/

This is a snapshot of my -mm patch queue. Uploaded at random hopefully more than once a week.

on x86_64: when GCOV is set/enabled:

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

Full randconfig file is attached.

We're trying to hide that from the general population, only to be used by our developers and CI, with e.g. "depends on !COMPILE_TEST". Can't hide from randconfig it seems.

Does the below patch help?

BR, Jani.

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)