On Mon, May 02, 2016 at 11:39:03AM +0300, Mathias Nyman wrote: > The current implemenentation restart the sent pattern for each entry in
%s/implemenentation/implementation > the sg list. The receiving end expects a continuous pattern, and test The f_sourcesink may not expect that, have you tried it? > will fail unless scatterilst entries happen to be aligned with the > pattern > > Fix this by calculating the pattern byte based on total sent size > instead of just the current sg entry. > > Signed-off-by: Mathias Nyman <[email protected]> > --- > drivers/usb/misc/usbtest.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c > index 92fdb6e..c78ff95 100644 > --- a/drivers/usb/misc/usbtest.c > +++ b/drivers/usb/misc/usbtest.c > @@ -529,6 +529,7 @@ static struct scatterlist * > alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe) > { > struct scatterlist *sg; > + unsigned int n_size = 0; > unsigned i; > unsigned size = max; > unsigned maxpacket = > @@ -561,7 +562,8 @@ alloc_sglist(int nents, int max, int vary, struct > usbtest_dev *dev, int pipe) > break; > case 1: > for (j = 0; j < size; j++) > - *buf++ = (u8) ((j % maxpacket) % 63); > + *buf++ = (u8) (((j + n_size) % maxpacket) % 63); > + n_size += size; > break; > } > > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-usb" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
