mac_margin_add
if ((err = mac_margin_add(mh, &margin, B_TRUE)) != 0) {
err = mac_margin_add(mh, &blp->bl_margin, B_TRUE);
err = mac_margin_add(vnic->vn_lower_mh,
err = mac_margin_add(vnic->vn_lower_mh,
extern int mac_margin_add(mac_handle_t, uint32_t *,
extern int mac_margin_add(mac_handle_t, uint32_t *,