pfr_get_astats
if (pfr_get_astats(filter, b->pfrb_caddr, &(b->pfrb_size), 0)) {
int pfr_get_astats(struct pfr_table *, struct pfr_astats *,
int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
RVTEST(pfr_get_astats(&table, b.pfrb_caddr,
RVTEST(pfr_get_astats(&table, b.pfrb_caddr,
error = pfr_get_astats(&io->pfrio_table, io->pfrio_buffer,
int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);