PoDeviceAcquireIrp

void __fastcall PoDeviceAcquireIrp(__int64 a1, char a2, __int64 a3){
  if( (unsigned __int8)(a2 - 2) <= 1u )
  {
    if( a3 )
    {
      *(_QWORD *)(*(_QWORD *)(a1 + 72i64 * *(char *)(a1 + 66) + 200) + 40i64) = a3;
      PopDiagTraceDeviceAcquireIrp((IRP *)a1, (DEVICE_OBJECT *)a3);
    }
  }
}

Referenced by:

IopfCompleteRequest
PoHandleIrp
PopIrpWorker