[PATCH 0/6] Increase code coverage on drm_format_helper.c

[Arthur Grillo]

The following series include improvements and new KUnit tests to some
functions on drm_format_helper.c.

The first patch improves existing conversion tests to assure that the
default pitch is used when NULL is used on the `dst_pitch` argument.

Patches 2, 3, 4, and 6 add the new parametrized tests to the following
functions:

- drm_fb_swab()
- drm_fb_clip_offset()
- drm_fb_build_fourcc_list()
- drm_fb_memcpy()

The 5th patch is a change to the conversion_buf_size() helper used on
the tests, this change was needed to make the patch 6.

a coverage report for the file can be found below:
https://grillo-0.github.io/coverage-reports/gsoc-drm-format-test/drivers/gpu/drm/drm_format_helper.c.gcov.html

Arthur Grillo (6):
  drm/format-helper: Test default pitch fallback
  drm/format-helper: Add KUnit tests for drm_fb_swab()
  drm/format-helper: Add KUnit tests for drm_fb_clip_offset()
  drm/format-helper: Add KUnit tests for drm_fb_build_fourcc_list()
  drm/format-helper-test: Add multi-plane support to
    conversion_buf_size()
  drm/format-helper: Add KUnit tests for drm_fb_memcpy()

 .../gpu/drm/tests/drm_format_helper_test.c    | 849 ++++++++++++++++--
 1 file changed, 791 insertions(+), 58 deletions(-)

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2.41.0