Huacai-- Thanks for your patch. On 11/15/2017 08:29 PM, 陈华才 wrote: > I think #undef is not very good, because it depends on the sequence of #include. > > Huacai Yes-- I can live with this-- we don't have many uses of the PTR() macro and it doesn't hurt clarity. Reviewed-by: Michael Lyle <mlyle@xxxxxxxx> I will carry this in my tree of things to possibly submit later in 4.15. Mike