Re: [PATCH] watchdog: pcwd_usb: constify usb_device_id

From: Guenter Roeck
Date: Mon Aug 14 2017 - 10:49:22 EST


On Sat, Aug 12, 2017 at 02:09:45PM +0530, Arvind Yadav wrote:
> usb_device_id are not supposed to change at runtime. All functions
> working with usb_device_id provided by <linux/usb.h> work with
> const usb_device_id. So mark the non-const structs as const.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> ---
> drivers/watchdog/pcwd_usb.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
> index 5615f40..b9e376c 100644
> --- a/drivers/watchdog/pcwd_usb.c
> +++ b/drivers/watchdog/pcwd_usb.c
> @@ -74,7 +74,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
> #define USB_PCWD_PRODUCT_ID 0x1140
>
> /* table of devices that work with this driver */
> -static struct usb_device_id usb_pcwd_table[] = {
> +static const struct usb_device_id usb_pcwd_table[] = {
> { USB_DEVICE(USB_PCWD_VENDOR_ID, USB_PCWD_PRODUCT_ID) },
> { } /* Terminating entry */
> };
> --
> 2.7.4
>
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