On Sat, Mar 06, 2021 at 08:06:44PM +0800, zhangkun...@163.com wrote: > From: Zhang Kun <zhang...@cdjrlc.com> > > The value assigned to len by sg_pcopy_from_buffer() never used for > anything, so remove it. > > Signed-off-by: Zhang Kun <zhang...@cdjrlc.com> > --- > 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 bd27bd670104..6ebda89d476c 100644 > --- a/drivers/usb/host/xhci.c > +++ b/drivers/usb/host/xhci.c > @@ -1335,7 +1335,6 @@ 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; > > @@ -1351,7 +1350,7 @@ 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, > + sg_pcopy_from_buffer(urb->sg, urb->num_sgs, > urb->transfer_buffer, > buf_len, > 0);
SHouldn't this be checked instead of ignored? thanks, greg k-h