linux-kernel - Re: [PATCH] can: xilinx_can: remove redundent netif_napi_del from xcan

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Date:   Mon, 18 Oct 2021 12:47:59 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Dongliang Mu <mudongliangabcd@...il.com>
Cc:     Appana Durga Kedareswara rao <appana.durga.rao@...inx.com>,
        Naga Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] can: xilinx_can: remove redundent netif_napi_del from
 xcan_remove

On 17.10.2021 20:50:21, Dongliang Mu wrote:
> Since netif_napi_del is already done in the free_candev, so we remove
> this redundent netif_napi_del invocation. In addition, this patch can
> match the operations in the xcan_probe and xcan_remove functions.
> 
> Signed-off-by: Dongliang Mu <mudongliangabcd@...il.com>
> ---
>  drivers/net/can/xilinx_can.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
> index 3b883e607d8b..60a3fb369058 100644
> --- a/drivers/net/can/xilinx_can.c
> +++ b/drivers/net/can/xilinx_can.c
> @@ -1848,7 +1848,6 @@ static int xcan_remove(struct platform_device *pdev)
>  
>  	unregister_candev(ndev);
>  	pm_runtime_disable(&pdev->dev);
> -	netif_napi_del(&priv->napi);
>  	free_candev(ndev);
>  
>  	return 0;

Fixed the following error:

| drivers/net/can/xilinx_can.c: In function ‘xcan_remove’:
| drivers/net/can/xilinx_can.c:1847:20: error: unused variable ‘priv’ [-Werror=unused-variable]
|  1847 |  struct xcan_priv *priv = netdev_priv(ndev);
|       |                    ^~~~

regards,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

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