[PATCH 1/2] powerpc: Add generic PAGE_SIZE config symbols

[Arnd Bergmann]

On Wed, May 18, 2022 at 2:00 PM Michael Ellerman <mpe at ellerman.id.au> wrote:
>
> Christophe Leroy <christophe.leroy at csgroup.eu> writes:
> > Le 05/05/2022 à 14:51, Michael Ellerman a écrit :
> >> Other arches (sh, mips, hexagon) use standard names for PAGE_SIZE
> >> related config symbols.
> >>
> >> Add matching symbols for powerpc, which are enabled by default but
> >> depend on our architecture specific PAGE_SIZE symbols.
> >>
> >> This allows generic/driver code to express dependencies on the PAGE_SIZE
> >> without needing to refer to architecture specific config symbols.
> >
> > I guess next step should be to get rid of powerpc specific symbols and
> > use generic symbols instead.
> >
> > We have (only) 111 occurences of it.
>
> I thought about doing that, but it's quite a bit of churn. Maybe it's
> worth it though to avoid confusion between the two symbols.

I have actually done this at some point, but for some reason never sent it out,
see my old patch at:

https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/commit/?h=randconfig-5.15-next&id=184c7273ee367fda3626e35f0079f181075690c8

Feel free to take ideas or the entire patch from that.

      Arnd