Re: [PATCH 1/7] powerpc/mm: rename map_page() to map_kernel_page() on PPC32

[Christophe LEROY]

Le 30/05/2017 Ã 12:50, Michael Ellerman a Ãcrit :
> Christophe Leroy <christophe.leroy@xxxxxx> writes:
>
> ...
>
> Please tell me why.

Because of patch https://patchwork.ozlabs.org/patch/766777/ which 
modifies patch_instruction() to use an alternative mapping.
Compilation fails on PPC32 because map_kernel_page() only exists on 
PPC64. However we have map_page() which does the same on PPC32, hence 
the renaming.

> You also moved the declaration from mmu_decl.h to book3s/32/pgtable.h,
> but didn't update any includes, presumably we're confident everything
> gets pgtable.h somehow?

Yes I did that so that lib/code_patching.c sees it.
All users of map_page() already include pgtable in a way or another.

Christophe