630         if (aRouter == nullptr || !aRouter->IsStateValid())  in SendLinkRequest()
659         if (!aRouter->IsStateValid())  in SendLinkRequest()
726             if (!neighbor->IsStateValid())  in HandleLinkRequest()
814             VerifyOrExit(router->IsStateValid());  in SendLinkAccept()
1339 …if (!router->IsStateValid() && aRxInfo.IsNeighborStateValid() && Get<ChildTable>().Contains(*aRxIn…  in HandleAdvertisementOnFtd()
1359 …if (!router->IsStateValid() && !router->IsStateLinkRequest() && (linkMargin >= kLinkRequestMinMarg…  in HandleAdvertisementOnFtd()
1391     VerifyOrExit(!aRouter.IsStateValid() && !aRouter.IsStateLinkRequest());  in EstablishRouterLinkOnFtdChild()
1558         if (!router.IsStateValid())  in HasNeighborWithGoodLinkQuality()
1723         if (router.IsStateValid() && (age >= kMaxNeighborAge))  in HandleTimeTick()
1889         OT_ASSERT(aChild.IsStateValid());  in ProcessAddressRegistrationTlv()
2172     if (!child->IsStateValid())  in HandleChildIdRequest()
2286     VerifyOrExit(child->IsStateValid());  in HandleChildUpdateRequestOnParent()
2476         VerifyOrExit(child->IsStateValid(), error = kErrorSecurity);  in HandleChildUpdateResponseOnParent()
3005     if (aChild.IsStateValid())  in SendChildUpdateRequestToChild()
3279     else if (aNeighbor.IsStateValid())  in RemoveNeighbor()
3734         if (!router.IsStateValid())  in FillConnectivityTlv()
3773         if (!router.IsStateValid() || (router.GetTwoWayLinkQuality() < kLinkQuality2))  in ShouldDowngrade()
3834         if ((router == nullptr) || !router->IsStateValid())  in NeighborHasComparableConnectivity()
3869     VerifyOrExit(!aChild.IsStateValid());  in SetChildStateToValid()