[PATCH v3 0/2] list: add missing empty list check to list_cut_before()

[Ziran Zhang]

v3:
- Elaborate the rationale in the commit message, as requested
  by Andy Shevchenko.
- Add Reviewed-by from Andy Shevchenko to patch 2/2.

v2:
- Add a KUnit test case as requested by Andy Shevchenko.
- Patch 1 adds the missing list_empty() guard, patch 2 adds the
  test case.

v1:
- https://lore.kernel.org/all/20260916100001.10634-1-zhangcoder@xxxxxxxx/

Tested with:
  tools/testing/kunit/kunit.py run --kernel_args=kunit.filter_glob='list-kunit-test'

Test result:
  [PASSED] list_test_list_cut_before_empty
  Testing complete. Ran 40 tests: passed: 40

Ziran Zhang (2):
  list: add missing empty list check to list_cut_before()
  list: add KUnit test for list_cut_before() empty list case

 include/linux/list.h  |  5 +++++
 lib/tests/list-test.c | 18 ++++++++++++++++++
 2 files changed, 23 insertions(+)

-- 
2.51.0