KeExpandKernelStackAndCalloutEx

NTSTATUS __fastcall KeExpandKernelStackAndCalloutEx(UINT64 a1, INT64 a2, UINT64 a3, INT8 a4, INT64 Context){
  return KeExpandKernelStackAndCalloutInternal((PVOID)a1, (PVOID)a2, a3, a4 != 0 ? 2 : 0, Context);
}

Referenced by:

IopIssueSystemEnvironmentRequest
ViPoolLogStackTrace
sub_1406F301C