VOID
WdSetLoopbackFlag(
  IN  PWD_ADAPTER Adapter,
  IN  PWD_OPEN Open,
  IN  PNDIS_PACKET Packet
  );

Routine Description:

    Sets the loopback flag in the reserved section of the packet
    to indicate if it should be looped back.

Arguments:

    Packet - the packet to check.

Return Value:

    None.