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

[Guenter Roeck <linux@xxxxxxxxxxxx>]

On 2/12/23 08:26, Mike Rapoport wrote:
> 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@xxxxxxxxxx>
> > >
> > > 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?

Sure, that works as well.

Guenter