On Wed, Sep 28, 2016 at 04:05:28PM +0300, Felipe Balbi wrote:
> We have introduced a helper to calculate multiplier
> value from wMaxPacketSize. Start using it.
> 
> Cc: Alan Stern <st...@rowland.harvard.edu>
> Cc: <linux-usb@vger.kernel.org>
> Signed-off-by: Felipe Balbi <felipe.ba...@linux.intel.com>
> ---
>  drivers/usb/gadget/udc/dummy_hcd.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/gadget/udc/dummy_hcd.c 
> b/drivers/usb/gadget/udc/dummy_hcd.c
> index 77d07904f932..14004cf88d4d 100644
> --- a/drivers/usb/gadget/udc/dummy_hcd.c
> +++ b/drivers/usb/gadget/udc/dummy_hcd.c
> @@ -1483,8 +1483,7 @@ static int periodic_bytes(struct dummy *dum, struct 
> dummy_ep *ep)
>               int     tmp;
>  
>               /* high bandwidth mode */
> -             tmp = usb_endpoint_maxp(ep->desc);
> -             tmp = (tmp >> 11) & 0x03;
> +             tmp = usb_endpoint_maxp_mult(ep->desc);

In the original code, tmp is 0 based, now the new code makes it 1 based.

Regards,
-Bin.

>               tmp *= 8 /* applies to entire frame */;
>               limit += limit * tmp;
>       }
> -- 
> 2.10.0.440.g21f862b
> 
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