linux-kernel - Re: [PATCH] arch/x86/mm/numa.c: quiet sparse noise when CONFIG_X86

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Date:	Sat, 10 Sep 2011 02:39:02 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	H Hartley Sweeten <hartleys@...ionengravers.com>
cc:	Linux Kernel <linux-kernel@...r.kernel.org>, x86@...nel.org,
	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com, tj@...nel.org,
	penberg@...nel.org, yinghai@...nel.org
Subject: Re: [PATCH] arch/x86/mm/numa.c: quiet sparse noise when CONFIG_X86_64
 is not set

On Fri, 9 Sep 2011, H Hartley Sweeten wrote:

> diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
> index fbeaaf4..11c60a7 100644
> --- a/arch/x86/mm/numa.c
> +++ b/arch/x86/mm/numa.c
> @@ -455,6 +455,7 @@ void __init numa_set_distance(int from, int to, int distance)
>  	numa_distance[from * numa_distance_cnt + to] = distance;
>  }
>  
> +#ifdef CONFIG_X86_64
>  int __node_distance(int from, int to)
>  {
>  	if (from >= numa_distance_cnt || to >= numa_distance_cnt)
> @@ -462,6 +463,7 @@ int __node_distance(int from, int to)
>  	return numa_distance[from * numa_distance_cnt + to];
>  }
>  EXPORT_SYMBOL(__node_distance);
> +#endif
>  
>  /*
>   * Sanity check to catch more bad NUMA configurations (they are amazingly
> 

What is 64-bit specific about this function?  Shouldn't we be defining it 
to be node_distance for all of x86?
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