Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (260 commits)
  usb: renesas_usbhs: fixup inconsistent return from usbhs_pkt_push()
  usb/isp1760: Allow to optionally trigger low-level chip reset via GPIOLIB.
  USB: gadget: midi: memory leak in f_midi_bind_config()
  USB: gadget: midi: fix range check in f_midi_out_open()
  QE/FHCI: fixed the CONTROL bug
  usb: renesas_usbhs: tidyup for smatch warnings
  USB: Fix USB Kconfig dependency problem on 85xx/QoirQ platforms
  EHCI: workaround for MosChip controller bug
  usb: gadget: file_storage: fix race on unloading
  USB: ftdi_sio.c: Use ftdi async_icount structure for TIOCMIWAIT, as in other drivers
  USB: ftdi_sio.c:Fill MSR fields of the ftdi async_icount structure
  USB: ftdi_sio.c: Fill LSR fields of the ftdi async_icount structure
  USB: ftdi_sio.c:Fill TX field of the ftdi async_icount structure
  USB: ftdi_sio.c: Fill the RX field of the ftdi async_icount structure
  USB: ftdi_sio.c: Basic icount infrastructure for ftdi_sio
  usb/isp1760: Let OF bindings depend on general CONFIG_OF instead of PPC_OF .
  USB: ftdi_sio: Support TI/Luminary Micro Stellaris BD-ICDI Board
  USB: Fix runtime wakeup on OHCI
  xHCI/USB: Make xHCI driver have a BOS descriptor.
  usb: gadget: add new usb gadget for ACM and mass storage
  ...

1 files changed, 24 insertions, 3 deletions

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 73cbbd8..b3b7d06 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -442,7 +442,11 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 	struct usb_ctrlrequest *cmd;
  	u16		typeReq, wValue, wIndex, wLength;
 	u8		*ubuf = urb->transfer_buffer;
-	u8		tbuf [sizeof (struct usb_hub_descriptor)]
+	/*
+	 * tbuf should be as big as the BOS descriptor and
+	 * the USB hub descriptor.
+	 */
+	u8		tbuf[USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE]
 		__attribute__((aligned(4)));
 	const u8	*bufp = tbuf;
 	unsigned	len = 0;
@@ -562,6 +566,8 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 			else /* unsupported IDs --> "protocol stall" */
 				goto error;
 			break;
+		case USB_DT_BOS << 8:
+			goto nongeneric;
 		default:
 			goto error;
 		}
@@ -596,6 +602,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 	/* CLASS REQUESTS (and errors) */
 
 	default:
+nongeneric:
 		/* non-generic request */
 		switch (typeReq) {
 		case GetHubStatus:
@@ -605,6 +612,9 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 		case GetHubDescriptor:
 			len = sizeof (struct usb_hub_descriptor);
 			break;
+		case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+			/* len is returned by hub_control */
+			break;
 		}
 		status = hcd->driver->hub_control (hcd,
 			typeReq, wValue, wIndex,
@@ -615,7 +625,7 @@ error:
 		status = -EPIPE;
 	}
 
-	if (status) {
+	if (status < 0) {
 		len = 0;
 		if (status != -EPIPE) {
 			dev_dbg (hcd->self.controller,
@@ -624,6 +634,10 @@ error:
 				typeReq, wValue, wIndex,
 				wLength, status);
 		}
+	} else if (status > 0) {
+		/* hub_control may return the length of data copied. */
+		len = status;
+		status = 0;
 	}
 	if (len) {
 		if (urb->transfer_buffer_length < len)
@@ -2429,7 +2443,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
 	 * but drivers can override it in reset() if needed, along with
 	 * recording the overall controller's system wakeup capability.
 	 */
-	device_init_wakeup(&rhdev->dev, 1);
+	device_set_wakeup_capable(&rhdev->dev, 1);
 
 	/* HCD_FLAG_RH_RUNNING doesn't matter until the root hub is
 	 * registered.  But since the controller can die at any time,
@@ -2478,6 +2492,13 @@ int usb_add_hcd(struct usb_hcd *hcd,
 	}
 	if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
 		usb_hcd_poll_rh_status(hcd);
+
+	/*
+	 * Host controllers don't generate their own wakeup requests;
+	 * they only forward requests from the root hub.  Therefore
+	 * controllers should always be enabled for remote wakeup.
+	 */
+	device_wakeup_enable(hcd->self.controller);
 	return retval;
 
 error_create_attr_group: