Re: [PATCH] lib/crypto: tests: Migrate ChaCha20Poly1305 self-test to KUnit

[Eric Biggers <ebiggers@kernel.org>]

On Fri, Mar 27, 2026 at 03:42:29PM -0700, Eric Biggers wrote:
> Move the ChaCha20Poly1305 test from an ad-hoc self-test to a KUnit test.
> 
> Keep the same test logic for now, just translated to KUnit.
> 
> Moving to KUnit has multiple benefits, such as:
> 
> - Consistency with the rest of the lib/crypto/ tests.
> 
> - Kernel developers familiar with KUnit, which is used kernel-wide, can
>   quickly understand the test and how to enable and run it.
> 
> - The test will be automatically run by anyone using
>   lib/crypto/.kunitconfig or KUnit's all_tests.config.
> 
> - Results are reported using the standard KUnit mechanism.
> 
> - It eliminates one of the few remaining back-references to crypto/ from
>   lib/crypto/, specifically a reference to CONFIG_CRYPTO_SELFTESTS.
> 
> Signed-off-by: Eric Biggers <ebiggers@kernel.org>
> ---
>  include/crypto/chacha20poly1305.h             |    2 -
>  lib/crypto/.kunitconfig                       |    1 +
>  lib/crypto/Makefile                           |    1 -
>  lib/crypto/chacha20poly1305.c                 |   14 -
>  lib/crypto/tests/Kconfig                      |   10 +
>  lib/crypto/tests/Makefile                     |    1 +
>  .../chacha20poly1305_kunit.c}                 | 1493 +++++++++--------
>  7 files changed, 760 insertions(+), 762 deletions(-)
>  rename lib/crypto/{chacha20poly1305-selftest.c => tests/chacha20poly1305_kunit.c} (91%)

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/log/?h=libcrypto-next

- Eric