GetFidDescriptorLength (
  IN UDF_FILE_IDENTIFIER_DESCRIPTOR  *FileIdentifierDesc
  )
{
  return (UINT64)(
             (INTN)((OFFSET_OF (UDF_FILE_IDENTIFIER_DESCRIPTOR, Data[0]) + 3 +
             FileIdentifierDesc->LengthOfFileIdentifier +
             FileIdentifierDesc->LengthOfImplementationUse) >> 2) << 2
             );
}

GetFidDescriptorLength (
  IN UDF_FILE_IDENTIFIER_DESCRIPTOR  *FileIdentifierDesc
  )
{
  return (UINT64)(
             (INTN)((OFFSET_OF (UDF_FILE_IDENTIFIER_DESCRIPTOR, Data[0]) + 3 +
             FileIdentifierDesc->LengthOfFileIdentifier +
             FileIdentifierDesc->LengthOfImplementationUse) >> 2) << 2
             );
}
