[PATCH 3/3] mm, arch: add generic implementation of pfn_valid() for FLATMEM

[Arnd Bergmann]

On Wed, Jan 25, 2023, at 20:07, Mike Rapoport wrote:
> From: "Mike Rapoport (IBM)" <rppt at kernel.org>
>
> Every architecture that supports FLATMEM memory model defines its own
> version of pfn_valid() that essentially compares a pfn to max_mapnr.
>
> Use mips/powerpc version implemented as static inline as a generic
> implementation of pfn_valid() and drop its per-architecture definitions
>
> Signed-off-by: Mike Rapoport (IBM) <rppt at kernel.org>

Acked-by: Arnd Bergmann <arnd at arndb.de>

I assume this can best go through the mm tree, let me know if I should
pick it up in the asm-generic tree instead.

     Arnd