linux-kernel - Re: [PATCH 3/3] can: xilinx: fix xcan_start

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Date:   Fri, 27 Apr 2018 09:49:41 +0200
From:   Michal Simek <michal.simek@...inx.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>
CC:     Wolfgang Grandegger <wg@...ndegger.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Michal Simek <michal.simek@...inx.com>,
        "open list:CAN NETWORK DRIVERS" <linux-can@...r.kernel.org>,
        "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/Allwinner sunXi SoC support" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 3/3] can: xilinx: fix xcan_start_xmit()'s return type

On 26.4.2018 23:13, Luc Van Oostenryck wrote:
> The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
> which is a typedef for an enum type, but the implementation in this
> driver returns an 'int'.
> 
> Fix this by returning 'netdev_tx_t' in this driver too.
> 
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@...il.com>
> ---
>  drivers/net/can/xilinx_can.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
> index 89aec07c2..a19648606 100644
> --- a/drivers/net/can/xilinx_can.c
> +++ b/drivers/net/can/xilinx_can.c
> @@ -386,7 +386,7 @@ static int xcan_do_set_mode(struct net_device *ndev, enum can_mode mode)
>   *
>   * Return: 0 on success and failure value on error
>   */
> -static int xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev)
> +static netdev_tx_t xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev)
>  {
>  	struct xcan_priv *priv = netdev_priv(ndev);
>  	struct net_device_stats *stats = &ndev->stats;
> 

It was applied already but there should be also kernel-doc update too to
use enum values instead of 0.

M