bstp_timer_expired
if (bstp_timer_expired(&bs->bs_link_timer)) {
bstp_timer_expired(&bp->bp_tc_timer);
bstp_timer_expired(&bp->bp_recent_root_timer);
bstp_timer_expired(&bp->bp_forward_delay_timer);
bstp_timer_expired(&bp->bp_recent_backup_timer);
if (bstp_timer_expired(&bp->bp_hello_timer))
if (bstp_timer_expired(&bp->bp_message_age_timer))
if (bstp_timer_expired(&bp->bp_migrate_delay_timer))
if (bstp_timer_expired(&bp->bp_edge_delay_timer))
int bstp_timer_expired(struct bstp_timer *);