[PATCH v2 3/4] drm/i915: switch to generic header check facility

[Jani Nikula <jani.nikula@intel.com>]

Switch to the generic header check facility, and sunset the copy-pasted
local version.

Keep the header checks gated on CONFIG_DRM_I915_WERROR as before. To be
unified later.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Closes: https://lore.kernel.org/r/CAHk-=wjMrqzuUmH-mFbR_46EWEFS=bB=J7h9ABMVy56Vi81PKQ@mail.gmail.com
Fixes: c6d4a099a240 ("drm/i915: reimplement header test feature")
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

---

Cc: linux-kbuild@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: intel-xe@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/i915/Makefile | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index ed05b131ed3a..dca187e58bda 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -411,19 +411,9 @@ ifdef CONFIG_DRM_I915_WERROR
     cmd_checkdoc = $(srctree)/scripts/kernel-doc -none -Werror $<
 endif
 
-# header test
-
 # exclude some broken headers from the test coverage
 no-header-test := \
 	display/intel_vbt_defs.h
 
-always-$(CONFIG_DRM_I915_WERROR) += \
-	$(patsubst %.h,%.hdrtest, $(filter-out $(no-header-test), \
-		$(shell cd $(src) && find * -name '*.h')))
-
-quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@)
-      cmd_hdrtest = $(CC) $(filter-out $(CFLAGS_GCOV), $(c_flags)) -S -o /dev/null -x c /dev/null -include $<; \
-		$(srctree)/scripts/kernel-doc -none -Werror $<; touch $@
-
-$(obj)/%.hdrtest: $(src)/%.h FORCE
-	$(call if_changed_dep,hdrtest)
+header-check-$(CONFIG_DRM_I915_WERROR) += \
+	$(filter-out $(no-header-test),$(shell cd $(src) && find * -name '*.h'))
-- 
2.39.5