linux-kernel - Re: [PATCH v2 12/28] openrisc: introduce arch_zone_limits

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Message-ID: <aViq2vsMk5tltK0f@antec>
Date: Sat, 3 Jan 2026 05:36:26 +0000
From: Stafford Horne <shorne@...il.com>
To: Mike Rapoport <rppt@...nel.org>
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Subject: Re: [PATCH v2 12/28] openrisc: introduce arch_zone_limits_init()

On Fri, Jan 02, 2026 at 08:59:48AM +0200, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)" <rppt@...nel.org>
> 
> Move calculations of zone limits to a dedicated arch_zone_limits_init()
> function.
> 
> Later MM core will use this function as an architecture specific callback
> during nodes and zones initialization and thus there won't be a need to
> call free_area_init() from every architecture.
> 
> Signed-off-by: Mike Rapoport (Microsoft) <rppt@...nel.org>
> ---
>  arch/openrisc/mm/init.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
> index 9382d9a0ec78..67de93e7a685 100644
> --- a/arch/openrisc/mm/init.c
> +++ b/arch/openrisc/mm/init.c
> @@ -39,15 +39,19 @@
>  
>  int mem_init_done;
>  
> -static void __init zone_sizes_init(void)
> +void __init arch_zone_limits_init(unsigned long *max_zone_pfns)
>  {
> -	unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 };
> -
>  	/*
>  	 * We use only ZONE_NORMAL
>  	 */
> -	max_zone_pfn[ZONE_NORMAL] = max_low_pfn;
> +	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
> +}
> +
> +static void __init zone_sizes_init(void)
> +{
> +	unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 };
>  
> +	arch_zone_limits_init(max_zone_pfn);
>  	free_area_init(max_zone_pfn);
>  }

Thanks, this looks like a good cleanup.


Acked-by: Stafford Horne <shorne@...il.com>