[PATCH v4 0/2] selftests/mm: use pattern matching in .gitignore

[pratmal@google.com]

From: Pratyush Mallick <pratmal@google.com>

The current selftests/mm/.gitignore hardcodes each generated test binary
by name, which requires manual updates every time a new test is added.

This series switches to a pattern-matching approach (similar to KVM
selftests), ignoring everything by default and allowing specific source
extensions. To accommodate this without tracking generated headers,
local_config.h is renamed to local_config.h_gen.

Changelog since v3 [3]:
- Reordered the patches so that local_config.h is renamed before
  updating .gitignore, preventing local_config.h from temporarily
  showing up as an untracked file in git status (SeongJae Park).

Changelog since v2 [2]:
- Split the changes into two separate patches (header rename and
  .gitignore update).
- Added Suggested-by for David Hildenbrand for the header rename approach.
- Dropped David's and Yosry's Reviewed-by tags.
- Kept Lorenzo Stoakes's Reviewed-by and added Mike Rapoport's Acked-by.

Changelog since v1 (RFC) [1]:
- Renamed local_config.h to local_config.h_gen to avoid conflict with !*.h.
- Updated Makefile, check_config.sh, and affected .c files for the rename.
- Removed *.mod.c as it was unnecessary.

Links:
[1] RFC: https://lore.kernel.org/linux-mm/afnMAaz1jY94db2n@lucifer/
[2] v2: https://lore.kernel.org/linux-mm/b6717dee-486b-4c61-8ec8-0e4269959469@kernel.org/
[3] v3: https://lore.kernel.org/linux-mm/20260511173411.267628-1-pratmal@google.com/

Pratyush Mallick (2):
  selftests/mm: rename local_config.h to local_config.h_gen
  selftests/mm: use pattern matching in .gitignore

 tools/testing/selftests/mm/.gitignore      | 71 +++-------------------
 tools/testing/selftests/mm/Makefile        |  6 +-
 tools/testing/selftests/mm/check_config.sh |  2 +-
 tools/testing/selftests/mm/cow.c           |  2 +-
 tools/testing/selftests/mm/gup_longterm.c  |  2 +-
 5 files changed, 15 insertions(+), 68 deletions(-)

-- 
2.55.0.571.g244d577d93-goog