[PATCH] arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed

From: Arnd Bergmann Stefan Agner reported a bug when using zsram on 32-bit Arm machines with RAM above the 4GB address boundary: Unable to handle kernel NULL pointer dereference at virtual address pgd = a27bd01c [] *pgd=236a0003, *pmd=1ffa64003 Internal error: Oops: 207

Re: [PATCH] arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed

On Fri, Nov 13, 2020 at 03:59:32PM +0100, Arnd Bergmann wrote: > From: Arnd Bergmann > > Stefan Agner reported a bug when using zsram on 32-bit Arm machines > with RAM above the 4GB address boundary: > > Unable to handle kernel NULL pointer dereference at virtual address > pgd = a27