[RFC PATCH v2 2/7] mm: Implement for_each_valid_pfn() for CONFIG_FLATMEM

[David Woodhouse]

On Mon, 2025-04-07 at 09:54 +0300, Mike Rapoport wrote:
> el.h b/include/asm-generic/memory_model.h
> > index a3b5029aebbd..044536da3390 100644
> > --- a/include/asm-generic/memory_model.h
> > +++ b/include/asm-generic/memory_model.h
> > @@ -30,7 +30,31 @@ static inline int pfn_valid(unsigned long pfn)
> >   	return pfn >= pfn_offset && (pfn - pfn_offset) <
> > max_mapnr;
> >   }
> >   #define pfn_valid pfn_valid
> > -#endif
> > +
> > +static inline bool first_valid_pfn(unsigned long *pfn)
> 
> This is now different from SPARSEMEM version. Do we need it at all?

Er, no. I think it's left over from the first implementation, before I
realised I could put it all into the loop and didn't need a helper at
all. I'll remove it.
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