[PATCH v2 0/2] printf: convert self-test to KUnit

[Tamir Duberstein <tamird@gmail.com>]

This is one of just 3 remaining "Test Module" kselftests (the others
being bitmap and scanf), the rest having been converted to KUnit.

I tested this using:

$ tools/testing/kunit/kunit.py run --arch arm64 --make_options LLVM=1 printf

I have also sent out a series converting scanf[0].

Link: https://lore.kernel.org/all/20250204-scanf-kunit-convert-v3-0-386d7c3ee714@gmail.com/T/#u [0]

Signed-off-by: Tamir Duberstein <tamird@gmail.com>
---
Changes in v2:
- Incorporate code review from prior work[0] by Arpitha Raghunandan.
- Link to v1: https://lore.kernel.org/r/20250204-printf-kunit-convert-v1-0-ecf1b846a4de@gmail.com

Link: https://lore.kernel.org/lkml/20200817043028.76502-1-98.arpi@gmail.com/t/#u [0]

---
Tamir Duberstein (2):
      printf: convert self-test to KUnit
      printf: break kunit into test cases

 Documentation/core-api/printk-formats.rst |   2 +-
 MAINTAINERS                               |   2 +-
 arch/m68k/configs/amiga_defconfig         |   1 -
 arch/m68k/configs/apollo_defconfig        |   1 -
 arch/m68k/configs/atari_defconfig         |   1 -
 arch/m68k/configs/bvme6000_defconfig      |   1 -
 arch/m68k/configs/hp300_defconfig         |   1 -
 arch/m68k/configs/mac_defconfig           |   1 -
 arch/m68k/configs/multi_defconfig         |   1 -
 arch/m68k/configs/mvme147_defconfig       |   1 -
 arch/m68k/configs/mvme16x_defconfig       |   1 -
 arch/m68k/configs/q40_defconfig           |   1 -
 arch/m68k/configs/sun3_defconfig          |   1 -
 arch/m68k/configs/sun3x_defconfig         |   1 -
 arch/powerpc/configs/ppc64_defconfig      |   1 -
 lib/Kconfig.debug                         |  20 +-
 lib/Makefile                              |   2 +-
 lib/{test_printf.c => printf_kunit.c}     | 400 ++++++++++++------------------
 tools/testing/selftests/lib/config        |   1 -
 tools/testing/selftests/lib/printf.sh     |   4 -
 20 files changed, 182 insertions(+), 262 deletions(-)
---
base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b
change-id: 20250131-printf-kunit-convert-fd4012aa2ec6

Best regards,
-- 
Tamir Duberstein <tamird@gmail.com>