| Date | Mon, 28 May 2012 04:12:43 +0100 | From | Ben Hutchings <> | Subject | [ 041/117] usb: usbtest: two super speed fixes for usbtest |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Paul Zimmerman <Paul.Zimmerman@synopsys.com>
commit 6a23ccd216b6a8ba2c67a9f9d8969b4431ad2920 upstream.
bMaxPacketSize0 field for super speed is a power of 2, not a count. The size itself is always 512.
Max packet size for a super speed bulk endpoint is 1024, so allocate the urb size in halt_simple() accordingly.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/usb/misc/usbtest.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 9dcb68f..055b84a 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1028,7 +1028,10 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) case 13: /* short read, resembling case 10 */ req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); /* last data packet "should" be DATA1, not DATA0 */ - len = 1024 - udev->descriptor.bMaxPacketSize0; + if (udev->speed == USB_SPEED_SUPER) + len = 1024 - 512; + else + len = 1024 - udev->descriptor.bMaxPacketSize0; expected = -EREMOTEIO; break; case 14: /* short read; try to fill the last packet */ @@ -1387,11 +1390,15 @@ static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) static int halt_simple(struct usbtest_dev *dev) { - int ep; - int retval = 0; - struct urb *urb; + int ep; + int retval = 0; + struct urb *urb; + struct usb_device *udev = testdev_to_usbdev(dev); - urb = simple_alloc_urb(testdev_to_usbdev(dev), 0, 512); + if (udev->speed == USB_SPEED_SUPER) + urb = simple_alloc_urb(udev, 0, 1024); + else + urb = simple_alloc_urb(udev, 0, 512); if (urb == NULL) return -ENOMEM;
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