netdev - Re: [PATCH can-next] can: ucan: remove set but not used variable 'udev'

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Message-ID: <046b59a3-c099-1d45-6238-551f3dbf633b@huawei.com>
Date:   Thu, 27 Sep 2018 17:38:44 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        "Martin Elshuber" <martin.elshuber@...obroma-systems.com>,
        Jakob Unterwurzacher <jakob.unterwurzacher@...obroma-systems.com>,
        Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
CC:     <linux-can@...r.kernel.org>, <netdev@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH can-next] can: ucan: remove set but not used variable
 'udev'

ping.

On 2018/8/29 9:46, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
> 
> drivers/net/can/usb/ucan.c: In function 'ucan_disconnect':
> drivers/net/can/usb/ucan.c:1578:21: warning:
>  variable 'udev' set but not used [-Wunused-but-set-variable]
>   struct usb_device *udev;
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/net/can/usb/ucan.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/net/can/usb/ucan.c b/drivers/net/can/usb/ucan.c
> index 0678a38..c9fd83e 100644
> --- a/drivers/net/can/usb/ucan.c
> +++ b/drivers/net/can/usb/ucan.c
> @@ -1575,11 +1575,8 @@ static int ucan_probe(struct usb_interface *intf,
>  /* disconnect the device */
>  static void ucan_disconnect(struct usb_interface *intf)
>  {
> -	struct usb_device *udev;
>  	struct ucan_priv *up = usb_get_intfdata(intf);
>  
> -	udev = interface_to_usbdev(intf);
> -
>  	usb_set_intfdata(intf, NULL);
>  
>  	if (up) {
> 
> 
> .
>