[PATCH v2 0/4] kbuild: resurrect generic header check facility

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

Another go at hiding the turds.

In v1 [1] I hid the build artifacts under .hdrtest subdirectories, one in each
$(obj) directory, but the feedback from Linus [2] was to have one top level
directory for this.

This is not possible without turning the whole thing back into a generic header
check facility. Personally, I think this is a good thing. Just look at patches
2-4, it's great.

The main reason we've been doing this in the subsystem/driver level at all is
the opposition from the kbuild maintainer. We'd very much like for Masahiro to
support us in our efforts, but without that support, we're limited to hacking in
the subsystem/driver Makefiles.

BR,
Jani.


[1] https://lore.kernel.org/r/20250401121830.21696-1-jani.nikula@intel.com

[2] https://lore.kernel.org/r/CAHk-=wiP0ea7xq2P3ryYs6xGWoqTw1E4jha67ZbJkaFrjqUdkQ@mail.gmail.com


Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona.vetter@ffwll.ch>
Cc: linux-kbuild@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: intel-xe@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org


Jani Nikula (4):
  kbuild: add generic header check facility
  drm: switch to generic header check facility
  drm/i915: switch to generic header check facility
  drm/xe: switch to generic header check facility

 drivers/gpu/drm/Kconfig           |  2 +-
 drivers/gpu/drm/Makefile          | 15 +--------------
 drivers/gpu/drm/i915/Makefile     | 14 ++------------
 drivers/gpu/drm/xe/Makefile       | 10 ++--------
 drivers/gpu/drm/xe/xe_pcode_api.h |  4 ++++
 include/drm/Makefile              | 15 +--------------
 init/Kconfig                      | 25 +++++++++++++++++++++++++
 scripts/Makefile.build            | 13 +++++++++++++
 scripts/Makefile.lib              |  7 +++++++
 9 files changed, 56 insertions(+), 49 deletions(-)

-- 
2.39.5