DMAR_ECAP_DI
if ((dmar->hw_ecap & DMAR_ECAP_DI) != 0 || force)
if (error == 0 && ((dmar->hw_ecap & DMAR_ECAP_DI) != 0 || force))
if ((dmar->hw_ecap & DMAR_ECAP_DI) != 0) {
if ((unit->hw_ecap & DMAR_ECAP_DI) != 0) {
(unit->hw_ecap & DMAR_ECAP_DI) != 0,