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@xxxxxxxxx/T/#u [0] Signed-off-by: Tamir Duberstein <tamird@xxxxxxxxx> --- Changes in v3: - Remove extraneous trailing newlines from failure messages. - Replace `pr_warn` with `kunit_warn`. - Drop arch changes. - Remove KUnit boilerplate from CONFIG_PRINTF_KUNIT_TEST help text. - Restore `total_tests` counting. - Remove tc_fail macro in last patch. - Link to v2: https://lore.kernel.org/r/20250207-printf-kunit-convert-v2-0-057b23860823@xxxxxxxxx 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@xxxxxxxxx Link: https://lore.kernel.org/lkml/20200817043028.76502-1-98.arpi@xxxxxxxxx/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 +- lib/Kconfig.debug | 12 +- lib/Makefile | 2 +- lib/{test_printf.c => printf_kunit.c} | 429 +++++++++++++----------------- tools/testing/selftests/lib/config | 1 - tools/testing/selftests/lib/printf.sh | 4 - 7 files changed, 192 insertions(+), 260 deletions(-) --- base-commit: a64dcfb451e254085a7daee5fe51bf22959d52d3 change-id: 20250131-printf-kunit-convert-fd4012aa2ec6 Best regards, -- Tamir Duberstein <tamird@xxxxxxxxx>
