BITSET_SIZE
for (group = 0; group < BITSET_SIZE(state->unused_service); group++)
length = sizeof(*found) * BITSET_SIZE(VCHIQ_MAX_SERVICES);
found = kmalloc_array(BITSET_SIZE(VCHIQ_MAX_SERVICES), sizeof(*found),
atomic_t poll_services[BITSET_SIZE(VCHIQ_MAX_SERVICES)];