do_key_write
do_key_write(dev, index, algorithm, key, key_len, mac_addr);
do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
do_key_write(dev, index, B43_SEC_ALGO_NONE,
do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,