15 files changed, 122 insertions, 68 deletions

diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index 6cf22c27f2d2..fbb087b728dc 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -51,7 +51,8 @@ void __init usb_init_pool_max(void)
 /**
  * hcd_buffer_create - initialize buffer pools
  * @hcd: the bus whose buffer pools are to be initialized
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep
  *
  * Call this as part of initializing a host controller that uses the dma
  * memory allocators.  It initializes some pools of dma-coherent memory that
@@ -88,7 +89,8 @@ int hcd_buffer_create(struct usb_hcd *hcd)
 /**
  * hcd_buffer_destroy - deallocate buffer pools
  * @hcd: the bus whose buffer pools are to be destroyed
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep
  *
  * This frees the buffer pools created by hcd_buffer_create().
  */
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 562a730befda..b199eb65f378 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -1076,6 +1076,7 @@ int usb_get_bos_descriptor(struct usb_device *dev)
 		case USB_PTM_CAP_TYPE:
 			dev->bos->ptm_cap =
 				(struct usb_ptm_cap_descriptor *)buffer;
+			break;
 		default:
 			break;
 		}
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index e96a858a1218..533236366a03 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -482,11 +482,11 @@ static void snoop_urb(struct usb_device *udev,
 
 	if (userurb) {		/* Async */
 		if (when == SUBMIT)
-			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %px, ep%d %s-%s, "
 					"length %u\n",
 					userurb, ep, t, d, length);
 		else
-			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %px, ep%d %s-%s, "
 					"actual_length %u status %d\n",
 					userurb, ep, t, d, length,
 					timeout_or_status);
@@ -1997,7 +1997,7 @@ static int proc_reapurb(struct usb_dev_state *ps, void __user *arg)
 	if (as) {
 		int retval;
 
-		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %px\n", as->userurb);
 		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
@@ -2014,7 +2014,7 @@ static int proc_reapurbnonblock(struct usb_dev_state *ps, void __user *arg)
 
 	as = async_getcompleted(ps);
 	if (as) {
-		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %px\n", as->userurb);
 		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
@@ -2142,7 +2142,7 @@ static int proc_reapurb_compat(struct usb_dev_state *ps, void __user *arg)
 	if (as) {
 		int retval;
 
-		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %px\n", as->userurb);
 		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
@@ -2159,7 +2159,7 @@ static int proc_reapurbnonblock_compat(struct usb_dev_state *ps, void __user *ar
 
 	as = async_getcompleted(ps);
 	if (as) {
-		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %px\n", as->userurb);
 		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
@@ -2624,7 +2624,7 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd,
 #endif
 
 	case USBDEVFS_DISCARDURB:
-		snoop(&dev->dev, "%s: DISCARDURB %pK\n", __func__, p);
+		snoop(&dev->dev, "%s: DISCARDURB %px\n", __func__, p);
 		ret = proc_unlinkurb(ps, p);
 		break;
 
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 98b7449c11f3..4dfa44d6cc3c 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -839,6 +839,22 @@ const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
 	return NULL;
 }
 
+bool usb_driver_applicable(struct usb_device *udev,
+			   struct usb_device_driver *udrv)
+{
+	if (udrv->id_table && udrv->match)
+		return usb_device_match_id(udev, udrv->id_table) != NULL &&
+		       udrv->match(udev);
+
+	if (udrv->id_table)
+		return usb_device_match_id(udev, udrv->id_table) != NULL;
+
+	if (udrv->match)
+		return udrv->match(udev);
+
+	return false;
+}
+
 static int usb_device_match(struct device *dev, struct device_driver *drv)
 {
 	/* devices and interfaces are handled separately */
@@ -853,17 +869,14 @@ static int usb_device_match(struct device *dev, struct device_driver *drv)
 		udev = to_usb_device(dev);
 		udrv = to_usb_device_driver(drv);
 
-		if (udrv->id_table)
-			return usb_device_match_id(udev, udrv->id_table) != NULL;
-
-		if (udrv->match)
-			return udrv->match(udev);
-
 		/* If the device driver under consideration does not have a
 		 * id_table or a match function, then let the driver's probe
 		 * function decide.
 		 */
-		return 1;
+		if (!udrv->id_table && !udrv->match)
+			return 1;
+
+		return usb_driver_applicable(udev, udrv);
 
 	} else if (is_usb_interface(dev)) {
 		struct usb_interface *intf;
@@ -941,8 +954,7 @@ static int __usb_bus_reprobe_drivers(struct device *dev, void *data)
 		return 0;
 
 	udev = to_usb_device(dev);
-	if (usb_device_match_id(udev, new_udriver->id_table) == NULL &&
-	    (!new_udriver->match || new_udriver->match(udev) == 0))
+	if (!usb_driver_applicable(udev, new_udriver))
 		return 0;
 
 	ret = device_reprobe(dev);
diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c
index 1c2c04079676..903426b6d305 100644
--- a/drivers/usb/core/endpoint.c
+++ b/drivers/usb/core/endpoint.c
@@ -153,7 +153,7 @@ static struct attribute *ep_dev_attrs[] = {
 	&dev_attr_direction.attr,
 	NULL,
 };
-static struct attribute_group ep_dev_attr_grp = {
+static const struct attribute_group ep_dev_attr_grp = {
 	.attrs = ep_dev_attrs,
 };
 static const struct attribute_group *ep_dev_groups[] = {
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index 22c887f5c497..26f9fb9f67ca 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -205,9 +205,7 @@ static int __check_for_non_generic_match(struct device_driver *drv, void *data)
 	udrv = to_usb_device_driver(drv);
 	if (udrv == &usb_generic_driver)
 		return 0;
-	if (usb_device_match_id(udev, udrv->id_table) != NULL)
-		return 1;
-	return (udrv->match && udrv->match(udev));
+	return usb_driver_applicable(udev, udrv);
 }
 
 static bool usb_generic_driver_match(struct usb_device *udev)
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index ec0d6c50610c..d630cccd2e6e 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -160,7 +160,8 @@ static void ehci_wait_for_companions(struct pci_dev *pdev, struct usb_hcd *hcd,
  * @dev: USB Host Controller being probed
  * @id: pci hotplug id connecting controller to HCD framework
  * @driver: USB HC driver handle
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep
  *
  * Allocates basic PCI resources for this USB host controller, and
  * then invokes the start() method for the HCD associated with it
@@ -304,7 +305,8 @@ EXPORT_SYMBOL_GPL(usb_hcd_pci_probe);
 /**
  * usb_hcd_pci_remove - shutdown processing for PCI-based HCDs
  * @dev: USB Host Controller being removed
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep
  *
  * Reverses the effect of usb_hcd_pci_probe(), first invoking
  * the HCD's stop() method.  It is always called from a thread
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 2c6b9578a7d3..60886a7464c3 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -747,8 +747,7 @@ error:
  * driver requests it; otherwise the driver is responsible for
  * calling usb_hcd_poll_rh_status() when an event occurs.
  *
- * Completions are called in_interrupt(), but they may or may not
- * be in_irq().
+ * Completion handler may not sleep. See usb_hcd_giveback_urb() for details.
  */
 void usb_hcd_poll_rh_status(struct usb_hcd *hcd)
 {
@@ -904,7 +903,8 @@ static void usb_bus_init (struct usb_bus *bus)
 /**
  * usb_register_bus - registers the USB host controller with the usb core
  * @bus: pointer to the bus to register
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep.
  *
  * Assigns a bus number, and links the controller into usbcore data
  * structures so that it can be seen by scanning the bus list.
@@ -939,7 +939,8 @@ error_find_busnum:
 /**
  * usb_deregister_bus - deregisters the USB host controller
  * @bus: pointer to the bus to deregister
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep.
  *
  * Recycles the bus number, and unlinks the controller from usbcore data
  * structures so that it won't be seen by scanning the bus list.
@@ -1646,9 +1647,16 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
 
 	/* pass ownership to the completion handler */
 	urb->status = status;
-	kcov_remote_start_usb((u64)urb->dev->bus->busnum);
+	/*
+	 * This function can be called in task context inside another remote
+	 * coverage collection section, but KCOV doesn't support that kind of
+	 * recursion yet. Only collect coverage in softirq context for now.
+	 */
+	if (in_serving_softirq())
+		kcov_remote_start_usb((u64)urb->dev->bus->busnum);
 	urb->complete(urb);
-	kcov_remote_stop();
+	if (in_serving_softirq())
+		kcov_remote_stop();
 
 	usb_anchor_resume_wakeups(anchor);
 	atomic_dec(&urb->use_count);
@@ -1691,7 +1699,11 @@ static void usb_giveback_urb_bh(struct tasklet_struct *t)
  * @hcd: host controller returning the URB
  * @urb: urb being returned to the USB device driver.
  * @status: completion status code for the URB.
- * Context: in_interrupt()
+ *
+ * Context: atomic. The completion callback is invoked in caller's context.
+ * For HCDs with HCD_BH flag set, the completion callback is invoked in tasklet
+ * context (except for URBs submitted to the root hub which always complete in
+ * caller's context).
  *
  * This hands the URB from HCD to its USB device driver, using its
  * completion function.  The HCD has freed all per-urb resources
@@ -2268,7 +2280,7 @@ EXPORT_SYMBOL_GPL(usb_hcd_resume_root_hub);
  * usb_bus_start_enum - start immediate enumeration (for OTG)
  * @bus: the bus (must use hcd framework)
  * @port_num: 1-based number of port; usually bus->otg_port
- * Context: in_interrupt()
+ * Context: atomic
  *
  * Starts enumeration, with an immediate reset followed later by
  * hub_wq identifying and possibly configuring the device.
@@ -2474,7 +2486,8 @@ EXPORT_SYMBOL_GPL(__usb_create_hcd);
  * @bus_name: value to store in hcd->self.bus_name
  * @primary_hcd: a pointer to the usb_hcd structure that is sharing the
  *              PCI device.  Only allocate certain resources for the primary HCD
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep.
  *
  * Allocate a struct usb_hcd, with extra space at the end for the
  * HC driver's private data.  Initialize the generic members of the
@@ -2496,7 +2509,8 @@ EXPORT_SYMBOL_GPL(usb_create_shared_hcd);
  * @driver: HC driver that will use this hcd
  * @dev: device for this HC, stored in hcd->self.controller
  * @bus_name: value to store in hcd->self.bus_name
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep.
  *
  * Allocate a struct usb_hcd, with extra space at the end for the
  * HC driver's private data.  Initialize the generic members of the
@@ -2830,7 +2844,8 @@ EXPORT_SYMBOL_GPL(usb_add_hcd);
 /**
  * usb_remove_hcd - shutdown processing for generic HCDs
  * @hcd: the usb_hcd structure to remove
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep.
  *
  * Disconnects the root hub, then reverses the effects of usb_add_hcd(),
  * invoking the HCD's stop() method.
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 17202b2ee063..7f71218cc1e5 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2171,7 +2171,8 @@ static void hub_disconnect_children(struct usb_device *udev)
 /**
  * usb_disconnect - disconnect a device (usbcore-internal)
  * @pdev: pointer to device being disconnected
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep
  *
  * Something got disconnected. Get rid of it and all of its children.
  *
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 19ebb542befc..30e9e680c74c 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -119,7 +119,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
  * @timeout: time in msecs to wait for the message to complete before timing
  *	out (if 0 the wait is forever)
  *
- * Context: !in_interrupt ()
+ * Context: task context, might sleep.
  *
  * This function sends a simple control message to a specified endpoint and
  * waits for the message to complete, or timeout.
@@ -204,9 +204,6 @@ int usb_control_msg_send(struct usb_device *dev, __u8 endpoint, __u8 request,
 	int ret;
 	u8 *data = NULL;
 
-	if (usb_pipe_type_check(dev, pipe))
-		return -EINVAL;
-
 	if (size) {
 		data = kmemdup(driver_data, size, memflags);
 		if (!data)
@@ -219,9 +216,8 @@ int usb_control_msg_send(struct usb_device *dev, __u8 endpoint, __u8 request,
 
 	if (ret < 0)
 		return ret;
-	if (ret == size)
-		return 0;
-	return -EINVAL;
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(usb_control_msg_send);
 
@@ -273,7 +269,7 @@ int usb_control_msg_recv(struct usb_device *dev, __u8 endpoint, __u8 request,
 	int ret;
 	u8 *data;
 
-	if (!size || !driver_data || usb_pipe_type_check(dev, pipe))
+	if (!size || !driver_data)
 		return -EINVAL;
 
 	data = kmalloc(size, memflags);
@@ -290,7 +286,7 @@ int usb_control_msg_recv(struct usb_device *dev, __u8 endpoint, __u8 request,
 		memcpy(driver_data, data, size);
 		ret = 0;
 	} else {
-		ret = -EINVAL;
+		ret = -EREMOTEIO;
 	}
 
 exit:
@@ -310,7 +306,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg_recv);
  * @timeout: time in msecs to wait for the message to complete before
  *	timing out (if 0 the wait is forever)
  *
- * Context: !in_interrupt ()
+ * Context: task context, might sleep.
  *
  * This function sends a simple interrupt message to a specified endpoint and
  * waits for the message to complete, or timeout.
@@ -343,7 +339,7 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg);
  * @timeout: time in msecs to wait for the message to complete before
  *	timing out (if 0 the wait is forever)
  *
- * Context: !in_interrupt ()
+ * Context: task context, might sleep.
  *
  * This function sends a simple bulk message to a specified endpoint
  * and waits for the message to complete, or timeout.
@@ -610,7 +606,8 @@ EXPORT_SYMBOL_GPL(usb_sg_init);
  * usb_sg_wait - synchronously execute scatter/gather request
  * @io: request block handle, as initialized with usb_sg_init().
  * 	some fields become accessible when this call returns.
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * This function blocks until the specified I/O operation completes.  It
  * leverages the grouping of the related I/O requests to get good transfer
@@ -764,7 +761,8 @@ EXPORT_SYMBOL_GPL(usb_sg_cancel);
  * @index: the number of the descriptor
  * @buf: where to put the descriptor
  * @size: how big is "buf"?
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * Gets a USB descriptor.  Convenience functions exist to simplify
  * getting some types of descriptors.  Use
@@ -812,7 +810,8 @@ EXPORT_SYMBOL_GPL(usb_get_descriptor);
  * @index: the number of the descriptor
  * @buf: where to put the string
  * @size: how big is "buf"?
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * Retrieves a string, encoded using UTF-16LE (Unicode, 16 bits per character,
  * in little-endian byte order).
@@ -947,7 +946,8 @@ static int usb_get_langid(struct usb_device *dev, unsigned char *tbuf)
  * @index: the number of the descriptor
  * @buf: where to put the string
  * @size: how big is "buf"?
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * This converts the UTF-16LE encoded strings returned by devices, from
  * usb_get_string_descriptor(), to null-terminated UTF-8 encoded ones
@@ -1036,7 +1036,8 @@ char *usb_cache_string(struct usb_device *udev, int index)
  * usb_get_device_descriptor - (re)reads the device descriptor (usbcore)
  * @dev: the device whose device descriptor is being updated
  * @size: how much of the descriptor to read
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * Updates the copy of the device descriptor stored in the device structure,
  * which dedicates space for this purpose.
@@ -1071,7 +1072,7 @@ int usb_get_device_descriptor(struct usb_device *dev, unsigned int size)
 /*
  * usb_set_isoch_delay - informs the device of the packet transmit delay
  * @dev: the device whose delay is to be informed
- * Context: !in_interrupt()
+ * Context: task context, might sleep
  *
  * Since this is an optional request, we don't bother if it fails.
  */
@@ -1100,7 +1101,8 @@ int usb_set_isoch_delay(struct usb_device *dev)
  * @type: USB_STATUS_TYPE_*; for standard or PTM status types
  * @target: zero (for device), else interface or endpoint number
  * @data: pointer to two bytes of bitmap data
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * Returns device, interface, or endpoint status.  Normally only of
  * interest to see if the device is self powered, or has enabled the
@@ -1177,7 +1179,8 @@ EXPORT_SYMBOL_GPL(usb_get_status);
  * usb_clear_halt - tells device to clear endpoint halt/stall condition
  * @dev: device whose endpoint is halted
  * @pipe: endpoint "pipe" being cleared
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * This is used to clear halt conditions for bulk and interrupt endpoints,
  * as reported by URB completion status.  Endpoints that are halted are
@@ -1481,7 +1484,8 @@ void usb_enable_interface(struct usb_device *dev,
  * @dev: the device whose interface is being updated
  * @interface: the interface being updated
  * @alternate: the setting being chosen.
- * Context: !in_interrupt ()
+ *
+ * Context: task context, might sleep.
  *
  * This is used to enable data transfers on interfaces that may not
  * be enabled by default.  Not all devices support such configurability.
@@ -1902,7 +1906,8 @@ static void __usb_queue_reset_device(struct work_struct *ws)
  * usb_set_configuration - Makes a particular device setting be current
  * @dev: the device whose configuration is being updated
  * @configuration: the configuration being chosen.
- * Context: !in_interrupt(), caller owns the device lock
+ *
+ * Context: task context, might sleep. Caller holds device lock.
  *
  * This is used to enable non-default device modes.  Not all devices
  * use this kind of configurability; many devices only have one
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 235a7c645503..dfcca9c876c7 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -155,7 +155,7 @@ static struct attribute *port_dev_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group port_dev_attr_grp = {
+static const struct attribute_group port_dev_attr_grp = {
 	.attrs = port_dev_attrs,
 };
 
@@ -169,7 +169,7 @@ static struct attribute *port_dev_usb3_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group port_dev_usb3_attr_grp = {
+static const struct attribute_group port_dev_usb3_attr_grp = {
 	.attrs = port_dev_usb3_attrs,
 };
 
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 10574fa3f927..1b4eb7046b07 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -342,12 +342,19 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
 
+	/* Agfa SNAPSCAN 1212U */
+	{ USB_DEVICE(0x06bd, 0x0001), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
 	{ USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
 
 	/* Guillemot Webcam Hercules Dualpix Exchange*/
 	{ USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Guillemot Hercules DJ Console audio card (BZ 208357) */
+	{ USB_DEVICE(0x06f8, 0xb000), .driver_info =
+			USB_QUIRK_ENDPOINT_IGNORE },
+
 	/* Midiman M-Audio Keystation 88es */
 	{ USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },
 
@@ -378,6 +385,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x0926, 0x3333), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
 
+	/* Kingston DataTraveler 3.0 */
+	{ USB_DEVICE(0x0951, 0x1666), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */
 	{ USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF },
 
@@ -418,6 +428,10 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Lenovo ThinkCenter A630Z TI024Gen3 usb-audio */
+	{ USB_DEVICE(0x17ef, 0xa012), .driver_info =
+			USB_QUIRK_DISCONNECT_SUSPEND },
+
 	/* BUILDWIN Photo Frame */
 	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
 			USB_QUIRK_HONOR_BNUMINTERFACES },
@@ -518,6 +532,8 @@ static const struct usb_device_id usb_amd_resume_quirk_list[] = {
  * Matched for devices with USB_QUIRK_ENDPOINT_IGNORE.
  */
 static const struct usb_device_id usb_endpoint_ignore[] = {
+	{ USB_DEVICE_INTERFACE_NUMBER(0x06f8, 0xb000, 5), .driver_info = 0x01 },
+	{ USB_DEVICE_INTERFACE_NUMBER(0x06f8, 0xb000, 5), .driver_info = 0x81 },
 	{ USB_DEVICE_INTERFACE_NUMBER(0x0926, 0x0202, 1), .driver_info = 0x85 },
 	{ USB_DEVICE_INTERFACE_NUMBER(0x0926, 0x0208, 1), .driver_info = 0x85 },
 	{ }
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 8d134193fa0c..d85699bee671 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -641,7 +641,7 @@ static struct attribute *usb2_hardware_lpm_attr[] = {
 	&dev_attr_usb2_lpm_besl.attr,
 	NULL,
 };
-static struct attribute_group usb2_hardware_lpm_attr_group = {
+static const struct attribute_group usb2_hardware_lpm_attr_group = {
 	.name	= power_group_name,
 	.attrs	= usb2_hardware_lpm_attr,
 };
@@ -651,7 +651,7 @@ static struct attribute *usb3_hardware_lpm_attr[] = {
 	&dev_attr_usb3_hardware_lpm_u2.attr,
 	NULL,
 };
-static struct attribute_group usb3_hardware_lpm_attr_group = {
+static const struct attribute_group usb3_hardware_lpm_attr_group = {
 	.name	= power_group_name,
 	.attrs	= usb3_hardware_lpm_attr,
 };
@@ -663,7 +663,7 @@ static struct attribute *power_attrs[] = {
 	&dev_attr_active_duration.attr,
 	NULL,
 };
-static struct attribute_group power_attr_group = {
+static const struct attribute_group power_attr_group = {
 	.name	= power_group_name,
 	.attrs	= power_attrs,
 };
@@ -832,7 +832,7 @@ static struct attribute *dev_attrs[] = {
 #endif
 	NULL,
 };
-static struct attribute_group dev_attr_grp = {
+static const struct attribute_group dev_attr_grp = {
 	.attrs = dev_attrs,
 };
 
@@ -865,7 +865,7 @@ static umode_t dev_string_attrs_are_visible(struct kobject *kobj,
 	return a->mode;
 }
 
-static struct attribute_group dev_string_attr_grp = {
+static const struct attribute_group dev_string_attr_grp = {
 	.attrs =	dev_string_attrs,
 	.is_visible =	dev_string_attrs_are_visible,
 };
@@ -1222,7 +1222,7 @@ static struct attribute *intf_attrs[] = {
 	&dev_attr_interface_authorized.attr,
 	NULL,
 };
-static struct attribute_group intf_attr_grp = {
+static const struct attribute_group intf_attr_grp = {
 	.attrs = intf_attrs,
 };
 
@@ -1246,7 +1246,7 @@ static umode_t intf_assoc_attrs_are_visible(struct kobject *kobj,
 	return a->mode;
 }
 
-static struct attribute_group intf_assoc_attr_grp = {
+static const struct attribute_group intf_assoc_attr_grp = {
 	.attrs =	intf_assoc_attrs,
 	.is_visible =	intf_assoc_attrs_are_visible,
 };
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 9b4ac4415f1a..8f07b0516100 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -28,7 +28,6 @@
 #include <linux/string.h>
 #include <linux/bitops.h>
 #include <linux/slab.h>
-#include <linux/interrupt.h>  /* for in_interrupt() */
 #include <linux/kmod.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
@@ -561,7 +560,8 @@ static bool usb_dev_authorized(struct usb_device *dev, struct usb_hcd *hcd)
  * @parent: hub to which device is connected; null to allocate a root hub
  * @bus: bus used to access the device
  * @port1: one-based index of port; ignored for root hubs
- * Context: !in_interrupt()
+ *
+ * Context: task context, might sleep.
  *
  * Only hub drivers (including virtual root hub drivers for host
  * controllers) should ever call this.
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index c893f54a3420..82538daac8b8 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -74,6 +74,8 @@ extern int usb_match_device(struct usb_device *dev,
 			    const struct usb_device_id *id);
 extern const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
 				const struct usb_device_id *id);
+extern bool usb_driver_applicable(struct usb_device *udev,
+				  struct usb_device_driver *udrv);
 extern void usb_forced_unbind_intf(struct usb_interface *intf);
 extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev);