void lldp_process_packet(struct lldp *cfg, const struct dp_packet *);
void lldp_put_packet(struct lldp *lldp, struct dp_packet *packet,
void lldp_process_packet(struct lldp *cfg, const struct dp_packet *);
void lldp_put_packet(struct lldp *lldp, struct dp_packet *packet,