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

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Message-ID: <20190627100114.3eda815f@canb.auug.org.au>
Date:   Thu, 27 Jun 2019 10:01:14 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Christoph Hellwig <hch@....de>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        sparclinux@...r.kernel.org, "David S. Miller" <davem@...emloft.net>
Subject: Re: linux-next: build failure after merge of the akpm-current tree

Hi Christoph,

On Wed, 26 Jun 2019 15:13:18 +0200 Christoph Hellwig <hch@....de> wrote:
>
> As that function is in code only there to provide compile coverage
> something like this should fix the problem:
> 
> 
> diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
> index 547ff96fb228..1599de730532 100644
> --- a/arch/sparc/include/asm/pgtable_64.h
> +++ b/arch/sparc/include/asm/pgtable_64.h
> @@ -861,10 +861,12 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
>  #define pud_clear(pudp)			(pud_val(*(pudp)) = 0UL)
>  #define pgd_page_vaddr(pgd)		\
>  	((unsigned long) __va(pgd_val(pgd)))
> -#define pgd_page(pgd)			pfn_to_page(pgd_pfn(pgd))
>  #define pgd_present(pgd)		(pgd_val(pgd) != 0U)
>  #define pgd_clear(pgdp)			(pgd_val(*(pgdp)) = 0UL)
>  
> +/* only used by the stubbed out hugetlb gup code, should never be called */
> +#define pgd_page(pgd)			NULL
> +
>  static inline unsigned long pud_large(pud_t pud)
>  {
>  	pte_t pte = __pte(pud_val(pud));

Thanks.

-- 
Cheers,
Stephen Rothwell

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