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

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Message-ID: <dfffdd41-611c-e9c3-d059-6339c3bc0c47@oracle.com>
Date:   Tue, 5 Nov 2019 10:56:59 -0800
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the akpm-current tree

On 11/5/19 2:19 AM, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the akpm-current tree, today's linux-next build (powerpc64
> allnoconfig) failed like this:
> 
> In file included from arch/powerpc/mm/mem.c:30:
> include/linux/hugetlb.h:233:19: error: redefinition of 'pmd_huge'
>   233 | static inline int pmd_huge(pmd_t pmd)
>       |                   ^~~~~~~~
> In file included from arch/powerpc/include/asm/book3s/64/pgtable.h:301,
>                  from arch/powerpc/include/asm/book3s/64/mmu-hash.h:20,
>                  from arch/powerpc/include/asm/book3s/64/mmu.h:46,
>                  from arch/powerpc/include/asm/mmu.h:356,
>                  from arch/powerpc/include/asm/lppaca.h:47,
>                  from arch/powerpc/include/asm/paca.h:17,
>                  from arch/powerpc/include/asm/current.h:13,
>                  from include/linux/sched.h:12,
>                  from arch/powerpc/mm/mem.c:16:
> arch/powerpc/include/asm/book3s/64/pgtable-4k.h:74:19: note: previous definition of 'pmd_huge' was here
>    74 | static inline int pmd_huge(pmd_t pmd) { return 0; }
>       |                   ^~~~~~~~
> In file included from arch/powerpc/mm/mem.c:30:
> include/linux/hugetlb.h:238:19: error: redefinition of 'pud_huge'
>   238 | static inline int pud_huge(pud_t pud)
>       |                   ^~~~~~~~
> In file included from arch/powerpc/include/asm/book3s/64/pgtable.h:301,
>                  from arch/powerpc/include/asm/book3s/64/mmu-hash.h:20,
>                  from arch/powerpc/include/asm/book3s/64/mmu.h:46,
>                  from arch/powerpc/include/asm/mmu.h:356,
>                  from arch/powerpc/include/asm/lppaca.h:47,
>                  from arch/powerpc/include/asm/paca.h:17,
>                  from arch/powerpc/include/asm/current.h:13,
>                  from include/linux/sched.h:12,
>                  from arch/powerpc/mm/mem.c:16:
> arch/powerpc/include/asm/book3s/64/pgtable-4k.h:75:19: note: previous definition of 'pud_huge' was here
>    75 | static inline int pud_huge(pud_t pud) { return 0; }
>       |                   ^~~~~~~~
> 
> Caused by commit
> 
>   9823e12e021f ("hugetlbfs: convert macros to static inline, fix sparse warning")
> 
> I have reverted that commit for today.

Thanks Stephen,

I will fix up and send another version via Andrew's tree.

-- 
Mike Kravetz