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 <mathias.nyman@xxxxxxxxxxxxxxx>
> ---
> 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
>
> --
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--
Best Regards,
Peter Chen
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