Subject: Re: linux-next: build failure after merge of the mm tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 26 Jul 2023 16:51:37 +1000

Hi Aneesh,

On Wed, 26 Jul 2023 10:52:33 +0530 "Aneesh Kumar K.V" <[email-masked]> wrote:
>
> Thanks for the report. Can you add the below diff. We should look at
> ppc64 not including radix headers if CONFIG_PPC_RADIX_MMU is disabled.
> But for now we can keep the below diff?
> 
> diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h
> index 3195f268ed7f..357e23a403d3 100644
> --- a/arch/powerpc/include/asm/book3s/64/radix.h
> +++ b/arch/powerpc/include/asm/book3s/64/radix.h
> @@ -364,8 +364,10 @@ int radix__remove_section_mapping(unsigned long start, unsigned long end);
>  
>  void radix__kernel_map_pages(struct page *page, int numpages, int enable);
>  
> +#ifdef CONFIG_ARCH_WANT_OPTIMIZE_DAX_VMEMMAP
>  #define vmemmap_can_optimize vmemmap_can_optimize
>  bool vmemmap_can_optimize(struct vmem_altmap *altmap, struct dev_pagemap *pgmap);
> +#endif
>  
>  #define vmemmap_populate_compound_pages vmemmap_populate_compound_pages
>  int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn,

That fixes the powerpc64 allnoconfig build for me

-- 
Cheers,
Stephen Rothwell