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

Mike Rapoport
2023-02-12T16:26:35Z

Hi Guenter,

On Sun, Feb 12, 2023 at 08:13:20AM -0800, Guenter Roeck wrote:
> On Sun, Jan 29, 2023 at 02:42:35PM +0200, Mike Rapoport wrote:
> > From: "Mike Rapoport (IBM)" <rppt@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.
> >
>
> With this patch in the tree, sh4 and sh4eb qemu emulations no longer boot.
> Reverting this patch fixes the problem.

Can you please test with only partial revert for arch/sh?

> Guenter

--
Sincerely yours,
Mike.