linux-kernel - Re: [PATCH 01/11] arm64: numa: Remove the unused parent

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Message-ID: <20170804133017.GD15287@arm.com>
Date:   Fri, 4 Aug 2017 14:30:17 +0100
From:   Will Deacon <will.deacon@....com>
To:     Dou Liyang <douly.fnst@...fujitsu.com>
Cc:     linux-kernel@...r.kernel.org, mpe@...erman.id.au,
        linux-arm-kernel@...ts.infradead.org, catalin.marinas@....com
Subject: Re: [PATCH 01/11] arm64: numa: Remove the unused parent_node() macro

On Wed, Jul 26, 2017 at 09:34:26PM +0800, Dou Liyang wrote:
> Commit a7be6e5a7f8d ("mm: drop useless local parameters of
> __register_one_node()") removes the last user of parent_node().
> 
> The parent_node() macro in ARM64 platform is unnecessary.
> 
> Remove it for cleanup.
> 
> Reported-by: Michael Ellerman <mpe@...erman.id.au>
> Signed-off-by: Dou Liyang <douly.fnst@...fujitsu.com>
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Will Deacon <will.deacon@....com>
> Cc: linux-arm-kernel@...ts.infradead.org
> ---
>  arch/arm64/include/asm/numa.h | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
> index bf466d1..ef7b238 100644
> --- a/arch/arm64/include/asm/numa.h
> +++ b/arch/arm64/include/asm/numa.h
> @@ -7,9 +7,6 @@
>  
>  #define NR_NODE_MEMBLKS		(MAX_NUMNODES * 2)
>  
> -/* currently, arm64 implements flat NUMA topology */
> -#define parent_node(node)	(node)
> -

Acked-by: Will Deacon <will.deacon@....com>

Where you intending for this to go via the arm64 tree?

Will