nhgrp_alloc
nhg = nhgrp_alloc(ctl->ctl_rh->rib_fibnum, ctl->ctl_rh->rib_family,
struct nhgrp_object *nhgrp_alloc(uint32_t fibnum, int family,
nhg = nhgrp_alloc(rh->rib_fibnum, rh->rib_family,