Some new futex tests rely on kernel features that may not be supported on all configurations (e.g., FUTEX2_NUMA or PR_FUTEX_HASH). Currently, these tests fail with EINVAL when the features are missing.
This patch adds dynamic skip logic to: 1. futex_priv_hash: Skip if PR_FUTEX_HASH returns ENOSYS or EINVAL. 2. futex_numa_mpol: Skip if futex2 or FUTEX2_NUMA returns ENOSYS or EINVAL. This allows the tests to pass (as SKIPPED) on kernels without support, while preserving coverage on configurations that do support them. Signed-off-by: Wake Liu <[email protected]> --- tools/testing/selftests/futex/functional/futex_numa_mpol.c | 2 ++ tools/testing/selftests/futex/functional/futex_priv_hash.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/tools/testing/selftests/futex/functional/futex_numa_mpol.c b/tools/testing/selftests/futex/functional/futex_numa_mpol.c index 78c0f7a59e17..d215acf88120 100644 --- a/tools/testing/selftests/futex/functional/futex_numa_mpol.c +++ b/tools/testing/selftests/futex/functional/futex_numa_mpol.c @@ -103,6 +103,8 @@ static void __test_futex(void *futex_ptr, int err_value, unsigned int futex_flag break; } if (ret < 0) { + if (errno == ENOSYS || (errno == EINVAL && (futex_flags & FUTEX2_NUMA))) + ksft_exit_skip("futex2 or FUTEX2_NUMA not supported by kernel\n"); ksft_exit_fail_msg("Failed futex2_wake(%d, 0x%x): %m\n", to_wake, futex_flags); } diff --git a/tools/testing/selftests/futex/functional/futex_priv_hash.c b/tools/testing/selftests/futex/functional/futex_priv_hash.c index e8079d7c65e8..27c3ea5ff3ed 100644 --- a/tools/testing/selftests/futex/functional/futex_priv_hash.c +++ b/tools/testing/selftests/futex/functional/futex_priv_hash.c @@ -145,6 +145,8 @@ TEST(priv_hash) } /* First thread, expect to be 0, not yet initialized */ ret = futex_hash_slots_get(); + if (ret < 0 && errno == EINVAL) + ksft_exit_skip("PR_FUTEX_HASH not supported by kernel\n"); if (ret != 0) ksft_exit_fail_msg("futex_hash_slots_get() failed: %d, %m\n", ret); -- 2.55.0.rc0.799.gd6f94ed593-goog
