616     uint16_t       payloadFragment = 0;  in FragmentDatagram()  local
637             payloadFragment = payloadLeft;  in FragmentDatagram()
645             payloadFragment = maxPayloadFragment;  in FragmentDatagram()
652 …Exit(error = fragment->SetLength(aMessage.GetOffset() + sizeof(fragmentHeader) + payloadFragment));  in FragmentDatagram()
654         header.SetPayloadLength(payloadFragment + sizeof(fragmentHeader));  in FragmentDatagram()
661                                      aMessage.GetOffset() + sizeof(fragmentHeader), payloadFragment,  in FragmentDatagram()
662                                      *fragment) == static_cast<int>(payloadFragment),  in FragmentDatagram()
670         otLogInfoIp6("Fragment %d with %d bytes sent", fragmentCnt, payloadFragment);  in FragmentDatagram()
693     uint16_t       payloadFragment = 0;  in HandleFragment()  local
721     payloadFragment = aMessage.GetLength() - aMessage.GetOffset() - sizeof(fragmentHeader);  in HandleFragment()
724                  payloadFragment, offset);  in HandleFragment()
726     if (offset + payloadFragment + aMessage.GetOffset() > kMaxAssembledDatagramLength)  in HandleFragment()
751     if (message->GetLength() < offset + payloadFragment + aMessage.GetOffset())  in HandleFragment()
753         SuccessOrExit(error = message->SetLength(offset + payloadFragment + aMessage.GetOffset()));  in HandleFragment()
758                                   payloadFragment, *message);  in HandleFragment()
759     OT_ASSERT(assertValue == static_cast<int>(payloadFragment));  in HandleFragment()
765         message->SetOffset(aMessage.GetOffset() + offset + payloadFragment);  in HandleFragment()