On 2021/5/19 21:12, Greg Kroah-Hartman wrote:
> On Wed, May 19, 2021 at 08:33:04PM +0800, Zhen Lei wrote:
>> GCC reports the following warning with W=1:
>>
>> drivers/usb/host/xhci.c:1349:15: warning:
>> variable 'len' set but not used [-Wunused-but-set-variable]
>> 1349 | unsigned int len;
>> | ^~~
>>
>> This variable is not used, remove it to fix the warning.
>>
>> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
>> Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
>> ---
>> drivers/usb/host/xhci.c | 3 +--
>> 1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
>> index 27283654ca08..a75ed4a00997 100644
>> --- a/drivers/usb/host/xhci.c
>> +++ b/drivers/usb/host/xhci.c
>> @@ -1346,7 +1346,6 @@ static bool xhci_urb_temp_buffer_required(struct usb_hcd *hcd,
>>
>> static void xhci_unmap_temp_buf(struct usb_hcd *hcd, struct urb *urb)
>> {
>> - unsigned int len;
>> unsigned int buf_len;
>> enum dma_data_direction dir;
>>
>> @@ -1362,7 +1361,7 @@ static void xhci_unmap_temp_buf(struct usb_hcd *hcd, struct urb *urb)
>> dir);
>>
>> if (usb_urb_dir_in(urb))
>> - len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs,
>> + (void)sg_pcopy_from_buffer(urb->sg, urb->num_sgs,
>> urb->transfer_buffer,
>> buf_len,
>> 0);
>> --
>> 2.25.1
>>
>>
>
> Wow, no. I keep telling you that this is not ok. Why keep sending
> this?
Sorry, I forgot to google it, someone already posted it.
>
> greg k-h
>
> .
>
