linux-kernel - Re: [PATCH v7 14/14] Documentation: remove the constraint on the distances of node pairs

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Message-ID: <20160826153550.GI30302@arm.com>
Date:   Fri, 26 Aug 2016 16:35:51 +0100
From:   Will Deacon <will.deacon@....com>
To:     Zhen Lei <thunder.leizhen@...wei.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        devicetree <devicetree@...r.kernel.org>,
        Zefan Li <lizefan@...wei.com>, Xinwei Hu <huxinwei@...wei.com>,
        Tianhong Ding <dingtianhong@...wei.com>,
        Hanjun Guo <guohanjun@...wei.com>
Subject: Re: [PATCH v7 14/14] Documentation: remove the constraint on the
 distances of node pairs

On Wed, Aug 24, 2016 at 03:44:53PM +0800, Zhen Lei wrote:
> Update documentation. This limit is unneccessary.
> 
> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
> Acked-by: Rob Herring <robh@...nel.org>
> ---
>  Documentation/devicetree/bindings/numa.txt | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/numa.txt b/Documentation/devicetree/bindings/numa.txt
> index 21b3505..c0ea4a7 100644
> --- a/Documentation/devicetree/bindings/numa.txt
> +++ b/Documentation/devicetree/bindings/numa.txt
> @@ -48,7 +48,6 @@ distance (memory latency) between all numa nodes.
> 
>    Note:
>  	1. Each entry represents distance from first node to second node.
> -	The distances are equal in either direction.

Hmm, so what happens now if firmware provides a description where both
distances (in either direction) are supplied, but are different?

Will