[PATCH] powerpc/8xx: use pmd_off() to access a PMD entry in pte_update()

[Andrew Morton]

On Mon, 15 Jun 2020 12:22:29 +0300 Mike Rapoport <rppt at kernel.org> wrote:

> From: Mike Rapoport <rppt at linux.ibm.com>
> 
> The pte_update() implementation for PPC_8xx unfolds page table from the PGD
> level to access a PMD entry. Since 8xx has only 2-level page table this can
> be simplified with pmd_off() shortcut.
> 
> Replace explicit unfolding with pmd_off() and drop defines of pgd_index()
> and pgd_offset() that are no longer needed.
> 
> Signed-off-by: Mike Rapoport <rppt at linux.ibm.com>
> ---
> 
> I think it's powerpc material, but I won't mind if Andrew picks it up :)

Via the powerpc tree would be better, please.