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From:   Michael Ellerman <patch-notifications@ellerman.id.au>
To:     Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Michael Ellerman <mpe@ellerman.id.au>,
        "Peter Zijlstra (Intel)" <peterz@infradead.org>,
        Will Deacon <will@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>
Cc:     linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
In-Reply-To: <cover.1592225557.git.christophe.leroy@csgroup.eu>
References: <cover.1592225557.git.christophe.leroy@csgroup.eu>
Subject: Re: [PATCH 0/3] Fix build failure with v5.8-rc1
Message-Id: <159248379779.3471720.9152671306932635297.b4-ty@ellerman.id.au>
Date:   Thu, 18 Jun 2020 22:37:12 +1000 (AEST)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Mon, 15 Jun 2020 12:57:55 +0000 (UTC), Christophe Leroy wrote:
> Commit 2ab3a0a02905 ("READ_ONCE: Enforce atomicity for
> {READ,WRITE}_ONCE() memory accesses") leads to following build
> failure on powerpc 8xx.
> 
> To fix it, this small series introduces a new helper named ptep_get()
> to replace the direct access with READ_ONCE(). This new helper
> can be overriden by architectures.
> 
> [...]

Applied to powerpc/fixes.

[1/3] mm/gup: Use huge_ptep_get() in gup_hugepte()
      https://git.kernel.org/powerpc/c/01a80ec6495f9e43f61b3231f3b283ca050a800e
[2/3] mm: Allow arches to provide ptep_get()
      https://git.kernel.org/powerpc/c/f7583fd6bdcc4d0b43f68fb81ebfae9669ee9338
[3/3] powerpc/8xx: Provide ptep_get() with 16k pages
      https://git.kernel.org/powerpc/c/b55129f97aeefd265314e12d98935330e011a14a

cheers