linux-kernel - Re: [PATCH] habanalabs: Use simplified API for p2p dist calc

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Message-ID: <CAFCwf13Q-m24+7_zC2XCSVF1dO6Cy25YCGr4oj=qsgjRXyyhSg@mail.gmail.com>
Date:   Mon, 26 Sep 2022 13:29:10 +0300
From:   Oded Gabbay <ogabbay@...nel.org>
To:     Bo Liu <liubo03@...pur.com>
Cc:     arnd@...db.de, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] habanalabs: Use simplified API for p2p dist calc

On Mon, Sep 26, 2022 at 4:52 AM Bo Liu <liubo03@...pur.com> wrote:
>
> Use the simplified API that calculates distance between two devices.
>
> Signed-off-by: Bo Liu <liubo03@...pur.com>
> ---
>  drivers/misc/habanalabs/common/memory.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
> index ef28f3b37b93..99b1d6ce26ae 100644
> --- a/drivers/misc/habanalabs/common/memory.c
> +++ b/drivers/misc/habanalabs/common/memory.c
> @@ -1689,7 +1689,7 @@ static int hl_dmabuf_attach(struct dma_buf *dmabuf,
>         hl_dmabuf = dmabuf->priv;
>         hdev = hl_dmabuf->ctx->hdev;
>
> -       rc = pci_p2pdma_distance_many(hdev->pdev, &attachment->dev, 1, true);
> +       rc = pci_p2pdma_distance(hdev->pdev, attachment->dev, true);
>
>         if (rc < 0)
>                 attachment->peer2peer = false;
> --
> 2.27.0
>

Thanks, but this change is already queued for upstream in our internal tree.
Oded