hci_add_link_key
struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
hci_add_link_key(hdev, NULL, &key->addr.bdaddr, key->val,
key = hci_add_link_key(hdev, smp->conn->hcon, &hcon->dst,