* checks sample format bits separately and together. If the test passes %0 is
* returned, otherwise %-1 is returned.
*/
-int test__sample_parsing(void)
+int test__sample_parsing(int subtest __maybe_unused)
{
const u64 rf[] = {4, 5, 6, 7, 12, 13, 14, 15};
u64 sample_type;