Subject: Re: [PATCH v2 4/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM

From: Michael Ellerman <[email-masked]>
Date: Mon, 30 Jan 2023 16:06:21 +1100

Mike Rapoport <[email-masked]> writes:
> From: "Mike Rapoport (IBM)" <[email-masked]>
>
> 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) <[email-masked]>
> Acked-by: Arnd Bergmann <[email-masked]>
> Acked-by: Guo Ren <[email-masked]>		# csky
> Acked-by: Huacai Chen <[email-masked]>	# LoongArch
> Acked-by: Stafford Horne <[email-masked]>	# OpenRISC
> ---
>  arch/alpha/include/asm/page.h      |  4 ----
>  arch/arc/include/asm/page.h        |  1 -
>  arch/csky/include/asm/page.h       |  1 -
>  arch/hexagon/include/asm/page.h    |  1 -
>  arch/ia64/include/asm/page.h       |  4 ----
>  arch/loongarch/include/asm/page.h  | 13 -------------
>  arch/m68k/include/asm/page_no.h    |  2 --
>  arch/microblaze/include/asm/page.h |  1 -
>  arch/mips/include/asm/page.h       | 13 -------------
>  arch/nios2/include/asm/page.h      |  9 ---------
>  arch/openrisc/include/asm/page.h   |  2 --
>  arch/parisc/include/asm/page.h     |  4 ----
>  arch/powerpc/include/asm/page.h    |  9 ---------

Acked-by: Michael Ellerman <[email-masked]> (powerpc)

cheers