dphold
dphold(dv->dv_priv);
dphold(r_mi->ddm_node_priv);
dphold(dvp->dv_priv);
dphold(res);
dphold(res);
dphold(np = nullp);
dphold(np = defp);
dphold(newdflt);
dphold(plcy);
extern void dphold(devplcy_t *);