skip_reason
test->test_cases[subtest].skip_reason = "not hybrid";
return t->test_cases[test_case >= 0 ? test_case : 0].skip_reason;
const char *reason = skip_reason(t, curr_test_case);
const char *skip_reason;
.skip_reason = _reason, \
.skip_reason = _reason, \
test->test_cases[subtest].skip_reason = "missing kernel support";