Re: [PATCH] Hid: wacom: Fix kernel test robot warning

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On Fri, 29 Apr 2022, Joshua Dickens wrote:

> From: Joshua-Dickens <Joshua@xxxxxxxxxxxxxxxxxx>
> 
> Kernel test robot throws the following warning -
> >> drivers/hid/wacom_wac.c:2411:42: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
>                            hid_warn(hdev, "Dropped %hu packets", value - wacom_wac->hid_data.sequence_number);
>                                                    ~~~           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>                                                    %d
> 
> Explicitly casting the argument to unsigned short to silence the warning and retain the intended behavior.
> 
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Joshua Dickens <joshua.dickens@xxxxxxxxx>
> ---
>  drivers/hid/wacom_wac.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
> index 64fe573deb9b..9470c2b0b529 100644
> --- a/drivers/hid/wacom_wac.c
> +++ b/drivers/hid/wacom_wac.c
> @@ -2408,7 +2408,7 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
>  		return;
>  	case WACOM_HID_WD_SEQUENCENUMBER:
>  		if (wacom_wac->hid_data.sequence_number != value)
> -			hid_warn(hdev, "Dropped %hu packets", value - wacom_wac->hid_data.sequence_number);
> +			hid_warn(hdev, "Dropped %hu packets", (unsigned short)(value - wacom_wac->hid_data.sequence_number));
>  		wacom_wac->hid_data.sequence_number = value + 1;
>  		return;

Applied on top of the pile in for-5.19/wacom, thanks Joshua.

-- 
Jiri Kosina
SUSE Labs




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