void lacp_slave_carrier_changed(const struct lacp *, const void *slave);
bool lacp_slave_may_enable(const struct lacp *, const void *slave);
uint16_t lacp_slave_get_port_id(const struct lacp *, const void *slave);
+bool lacp_slave_is_current(const struct lacp *, const void *slave_);
/* Callback function for lacp_run() for sending a LACP PDU. */
typedef void lacp_send_pdu(void *slave, const struct lacp_pdu *);