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From:   Michael Ellerman <mpe@ellerman.id.au>
To:     Mike Rapoport <rppt@kernel.org>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Christophe Leroy <christophe.leroy@c-s.fr>,
        linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, Mike Rapoport <rppt@linux.ibm.com>
Subject: Re: [PATCH] powerpc/8xx: use pmd_off() to access a PMD entry in pte_update()
In-Reply-To: <20200617041617.GA6571@kernel.org>
References: <20200615092229.23142-1-rppt@kernel.org> <20200616124304.bbe36933fcd48c5f467f4be9@linux-foundation.org> <87o8piegvt.fsf@mpe.ellerman.id.au> <20200617041617.GA6571@kernel.org>
Date:   Wed, 17 Jun 2020 23:05:04 +1000
Message-ID: <875zbpetbz.fsf@mpe.ellerman.id.au>
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Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
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Mike Rapoport <rppt@kernel.org> writes:
> On Wed, Jun 17, 2020 at 09:21:42AM +1000, Michael Ellerman wrote:
>> Andrew Morton <akpm@linux-foundation.org> writes:
>> > On Mon, 15 Jun 2020 12:22:29 +0300 Mike Rapoport <rppt@kernel.org> wrote:
>> >
>> >> From: Mike Rapoport <rppt@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@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.
>> 
>> I'll take it into next for v5.9, unless there's a reason it needs to go
>> into v5.8.
>
> I consider it a fixup for 5.8 merge window conflicts. Besides, mering it
> now may avoid new conflicts in 5.9 ;-)

OK, I'll pick it up for v5.8.

cheers