CAST_USER_ADDR_T
copyin(CAST_USER_ADDR_T(uiocp), NFSMTOD(mp, caddr_t)
copyout(mbufcp, CAST_USER_ADDR_T(uiocp), xfer);
error = copyin(CAST_USER_ADDR_T(nidp->nid_name), cp,
error = copyin(CAST_USER_ADDR_T(nidp->nid_name), newusrp->lug_name,
error = copyin(CAST_USER_ADDR_T(nidp->nid_grps), grps,
CAST_USER_ADDR_T(dumplist.ndl_list), len);
CAST_USER_ADDR_T(dumplocklist.ndllck_list), len);