linux-kernel - Re: [PATCH] LoongArch: Remove a bogus reference to ZONE

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Message-ID: <CAAhV-H5gkv1aVJRBE5b06ne0biKEZxASr2_h6HVCypfNpaBxrA@mail.gmail.com>
Date: Sat, 26 Apr 2025 18:11:38 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: Petr Tesarik <ptesarik@...e.com>
Cc: WANG Xuerui <kernel@...0n.name>, Guo Weikang <guoweikang.kernel@...il.com>, 
	"Mike Rapoport (Microsoft)" <rppt@...nel.org>, Bibo Mao <maobibo@...ngson.cn>, loongarch@...ts.linux.dev, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] LoongArch: Remove a bogus reference to ZONE_DMA

Applied, thanks.

Huacai

On Thu, Apr 3, 2025 at 10:11 PM Petr Tesarik <ptesarik@...e.com> wrote:
>
> Remove dead code. LoongArch does not have a DMA memory zone. The
> architecture does not even define MAX_DMA_PFN.
>
> Signed-off-by: Petr Tesarik <ptesarik@...e.com>
> ---
>  arch/loongarch/mm/init.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
> index ca5aa5f46a9f..7fab370efa74 100644
> --- a/arch/loongarch/mm/init.c
> +++ b/arch/loongarch/mm/init.c
> @@ -65,9 +65,6 @@ void __init paging_init(void)
>  {
>         unsigned long max_zone_pfns[MAX_NR_ZONES];
>
> -#ifdef CONFIG_ZONE_DMA
> -       max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
> -#endif
>  #ifdef CONFIG_ZONE_DMA32
>         max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
>  #endif
> --
> 2.48.1
>