]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
powerpc/mm: Define MAX_PHYSMEM_BITS for all 64-bit configs
authorMichael Ellerman <mpe@ellerman.id.au>
Tue, 9 Apr 2019 05:43:11 +0000 (15:43 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 10 Apr 2019 04:45:57 +0000 (14:45 +1000)
commitcf7cf6977f531acd5dfe55250d0ee8cbbb6f1ae8
tree57488b97ebf3c07b2ce5ca005b7296d02b251517
parent7100e8704b61247649c50551b965e71d168df30b
powerpc/mm: Define MAX_PHYSMEM_BITS for all 64-bit configs

The recent commit 8bc086899816 ("powerpc/mm: Only define
MAX_PHYSMEM_BITS in SPARSEMEM configurations") removed our definition
of MAX_PHYSMEM_BITS when SPARSEMEM is disabled.

This inadvertently broke some 64-bit FLATMEM using configs with eg:

  arch/powerpc/include/asm/book3s/64/mmu-hash.h:584:6: error: "MAX_PHYSMEM_BITS" is not defined, evaluates to 0
   #if (MAX_PHYSMEM_BITS > MAX_EA_BITS_PER_CONTEXT)
        ^~~~~~~~~~~~~~~~

Fix it by making sure we define MAX_PHYSMEM_BITS for all 64-bit
configs regardless of SPARSEMEM.

Fixes: 8bc086899816 ("powerpc/mm: Only define MAX_PHYSMEM_BITS in SPARSEMEM configurations")
Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Reported-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/mmu.h