find_first_zero_bit
offset = find_first_zero_bit(adev->wb.used, adev->wb.num_wb);
bit_pos = find_first_zero_bit(adev->seq64.used, adev->seq64.num_sem);
found = find_first_zero_bit(qpd->doorbell_bitmap,
inx = find_first_zero_bit(kfd->doorbell_bitmap, PAGE_SIZE / sizeof(u32));
found = find_first_zero_bit(pqm->queue_slot_bitmap,
find_first_zero_bit(dcp->memdesc_map, DCP_MAX_MAPPINGS);
id = find_first_zero_bit(dcp->memdesc_map, DCP_MAX_MAPPINGS);
for ((b) = find_first_zero_bit((p), (max)); \
b = find_first_zero_bit(p, n);
unsigned long offset = find_first_zero_bit(rdev->doorbell.used, rdev->doorbell.num_doorbells);