br_set_state
br_set_state(p, BR_STATE_DISABLED);
br_set_state(p, state);
void br_set_state(struct net_bridge_port *p, unsigned int state);
br_set_state(p, BR_STATE_LISTENING);
br_set_state(p, BR_STATE_BLOCKING);
br_set_state(p, BR_STATE_FORWARDING);
br_set_state(p, BR_STATE_LISTENING);
br_set_state(p, BR_STATE_LEARNING);
br_set_state(p, BR_STATE_DISABLED);
br_set_state(p, BR_STATE_BLOCKING);
br_set_state(p, BR_STATE_LEARNING);
br_set_state(p, BR_STATE_FORWARDING);