linux-kernel - Re: linux-next: build failure after merge of the akpm-current tree

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Message-ID: <87v9rp3o5e.fsf@mpe.ellerman.id.au>
Date:   Tue, 12 Nov 2019 11:59:41 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Mike Kravetz <mike.kravetz@...cle.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-mm\@kvack.org" <linux-mm@...ck.org>
Subject: Re: linux-next: build failure after merge of the akpm-current tree

Michael Ellerman <mpe@...erman.id.au> writes:
>
> Mike Kravetz <mike.kravetz@...cle.com> writes:
>> On 11/5/19 2:19 AM, Stephen Rothwell wrote:
...
>> From 4b3ab017e639e4e583fff801e6d8e6727b7877e8 Mon Sep 17 00:00:00 2001
>> From: Mike Kravetz <mike.kravetz@...cle.com>
>> Date: Tue, 5 Nov 2019 15:12:15 -0800
>> Subject: [PATCH] powerpc/mm: remove pmd_huge/pud_huge stubs and include
>>  hugetlb.h
>>
>> This removes the power specific stubs created by commit aad71e3928be
>> ("powerpc/mm: Fix build break with RADIX=y & HUGETLBFS=n") used when
>> !CONFIG_HUGETLB_PAGE.  Instead, it addresses the build break by
>> getting the definitions from <linux/hugetlb.h>.
>>
>> Signed-off-by: Mike Kravetz <mike.kravetz@...cle.com>
>> ---
>>  arch/powerpc/include/asm/book3s/64/pgtable-4k.h  | 3 ---
>>  arch/powerpc/include/asm/book3s/64/pgtable-64k.h | 3 ---
>>  arch/powerpc/mm/book3s64/radix_pgtable.c         | 1 +
>>  3 files changed, 1 insertion(+), 6 deletions(-)
>
> The two pgtable headers are included eventually by our top-level
> pgtable.h, and that is included by over 100 files. So I worry this is
> going to break the build somewhere in some obscure configuration.
>
> I'll push it through some test builds and see what happens.

Seems OK, it didn't introduce any new build failures.

Acked-by: Michael Ellerman <mpe@...erman.id.au>

cheers