linux-kernel - Re: [PATCH 1/8] cpufreq: tegra186: don't pass GFP_DMA32 to dma_alloc

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Date:   Mon, 15 Oct 2018 09:43:04 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Linux PM <linux-pm@...r.kernel.org>, linux-tegra@...r.kernel.org,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-media@...r.kernel.org, linux-spi <linux-spi@...r.kernel.org>,
        "open list:FRAMEBUFFER LAYER" <linux-fbdev@...r.kernel.org>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/8] cpufreq: tegra186: don't pass GFP_DMA32 to dma_alloc_coherent

On Sat, Oct 13, 2018 at 5:17 PM Christoph Hellwig <hch@....de> wrote:
>
> The DMA API does its own zone decisions based on the coherent_dma_mask.
>
> Signed-off-by: Christoph Hellwig <hch@....de>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

> ---
>  drivers/cpufreq/tegra186-cpufreq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/tegra186-cpufreq.c b/drivers/cpufreq/tegra186-cpufreq.c
> index 1f59966573aa..f1e09022b819 100644
> --- a/drivers/cpufreq/tegra186-cpufreq.c
> +++ b/drivers/cpufreq/tegra186-cpufreq.c
> @@ -121,7 +121,7 @@ static struct cpufreq_frequency_table *init_vhint_table(
>         void *virt;
>
>         virt = dma_alloc_coherent(bpmp->dev, sizeof(*data), &phys,
> -                                 GFP_KERNEL | GFP_DMA32);
> +                                 GFP_KERNEL);
>         if (!virt)
>                 return ERR_PTR(-ENOMEM);
>
> --
> 2.19.1
>