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lib/tests: extend KUnit test for bitops with more cases

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Extend a KUnit test suite for the bitops API to cover more APIs from
include/asm-generic/bitops/instrumented-atomic.h.

- change_bit()
- test_and_set_bit()
- test_and_clear_bit()
- test_and_change_bit()

Verified on x86_64, i386, and arm64 architectures.

Sample KUnit output:

        KTAP version 1
        # Subtest: test_change_bit
        ok 1 BITOPS_4
        ok 2 BITOPS_7
        ok 3 BITOPS_11
        ok 4 BITOPS_31
        ok 5 BITOPS_88
    # test_change_bit: pass:5 fail:0 skip:0 total:5
    ok 2 test_change_bit
        KTAP version 1
        # Subtest: test_test_and_set_bit_test_and_clear_bit
        ok 1 BITOPS_4
        ok 2 BITOPS_7
        ok 3 BITOPS_11
        ok 4 BITOPS_31
        ok 5 BITOPS_88
    # test_test_and_set_bit_test_and_clear_bit: pass:5 fail:0 skip:0 total:5
    ok 3 test_test_and_set_bit_test_and_clear_bit
        KTAP version 1
        # Subtest: test_test_and_change_bit
        ok 1 BITOPS_4
        ok 2 BITOPS_7
        ok 3 BITOPS_11
        ok 4 BITOPS_31
        ok 5 BITOPS_88
    # test_test_and_change_bit: pass:5 fail:0 skip:0 total:5
    ok 4 test_test_and_change_bit

Signed-off-by: Ryota Sakamoto <sakamo.ryota@gmail.com>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
This commit is contained in:
Ryota Sakamoto
2026-01-23 00:40:41 +09:00
committed by Yury Norov
parent 9d6f676493
commit 6711069dd7
2 changed files with 65 additions and 2 deletions
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4
lib/Kconfig.debug
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@@ -2660,8 +2660,8 @@ config BITOPS_KUNIT
This option enables the KUnit test for the bitops library
which provides functions for bit operations.
Note that this is a partial copy of the original test_bitops module.
For the full coverage, enable TEST_BITOPS.
Note that this is derived from the original test_bitops module.
For micro-benchmarks and compiler warning checks, enable TEST_BITOPS.
If unsure, say N.