V_ifg_head
CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
CK_STAILQ_INSERT_TAIL(&V_ifg_head, ifg, ifg_next);
CK_STAILQ_REMOVE(&V_ifg_head, ifgl->ifgl_group, ifg_group,
CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
CK_STAILQ_INIT(&V_ifg_head);
CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next) {