linux-kernel - Re: [PATCH 8/9] csky: don't use GFP_DMA in atomic_pool

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Message-ID: <20181105154750.GB25126@guoren-Inspiron-7460>
Date:   Mon, 5 Nov 2018 23:47:50 +0800
From:   Guo Ren <ren_guo@...ky.com>
To:     Christoph Hellwig <hch@....de>
Cc:     iommu@...ts.linux-foundation.org,
        Robin Murphy <robin.murphy@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Laura Abbott <labbott@...hat.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/9] csky: don't use GFP_DMA in atomic_pool_init

On Mon, Nov 05, 2018 at 01:19:30PM +0100, Christoph Hellwig wrote:
> csky does not implement ZONE_DMA, which means passing GFP_DMA is a no-op.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  arch/csky/mm/dma-mapping.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/csky/mm/dma-mapping.c b/arch/csky/mm/dma-mapping.c
> index 85437b21e045..ad4046939713 100644
> --- a/arch/csky/mm/dma-mapping.c
> +++ b/arch/csky/mm/dma-mapping.c
> @@ -35,7 +35,7 @@ static int __init atomic_pool_init(void)
>  	if (!atomic_pool)
>  		BUG();
>  
> -	page = alloc_pages(GFP_KERNEL | GFP_DMA, get_order(size));
> +	page = alloc_pages(GFP_KERNEL, get_order(size));
>  	if (!page)
>  		BUG();
>  
> -- 
> 2.19.1

Acked-by: Guo Ren <ren_guo@...ky.com>