Messages in this thread | | | From | Christophe Leroy <> | Subject | Re: [PATCH 1/2] powerpc: Add generic PAGE_SIZE config symbols | Date | Wed, 18 May 2022 13:27:57 +0000 |
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Le 18/05/2022 à 15:21, Arnd Bergmann a écrit : > On Wed, May 18, 2022 at 2:00 PM Michael Ellerman <mpe@ellerman.id.au> wrote: >> >> Christophe Leroy <christophe.leroy@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. >
Well, at this point I was just talking about renaming the CONFIG_PPC_xxK_PAGES symbols to the generic naming while still keeping them in powerpc Kconfig.
You are going one step further by making it a generic arch symbol, that's also a good idea and can be done more or less independantly.
Christophe
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