linux-kernel - Re: [PATCH 09/16] mm/page_alloc: use local variable zone

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Date:   Fri, 9 Sep 2022 13:31:50 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Miaohe Lin <linmiaohe@...wei.com>, akpm@...ux-foundation.org
Cc:     osalvador@...e.de, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/16] mm/page_alloc: use local variable zone_idx directly

On 09.09.22 11:24, Miaohe Lin wrote:
> Use local variable zone_idx directly since it holds the exact value of
> zone_idx(). No functional change intended.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
> ---
>   mm/page_alloc.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 94baf33da865..3417232afa45 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -6878,7 +6878,7 @@ void __ref memmap_init_zone_device(struct zone *zone,
>   	unsigned long start = jiffies;
>   	int nid = pgdat->node_id;
>   
> -	if (WARN_ON_ONCE(!pgmap || zone_idx(zone) != ZONE_DEVICE))
> +	if (WARN_ON_ONCE(!pgmap || zone_idx != ZONE_DEVICE))
>   		return;
>   
>   	/*

Reviewed-by: David Hildenbrand <david@...hat.com>

-- 
Thanks,

David / dhildenb