Merge tag 'usb-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big set of USB patches for 5.4-rc1.

  Two major chunks of code are moving out of the tree and into the
  staging directory, uwb and wusb (wireless USB support), because there
  are no devices that actually use this protocol anymore, and what we
  have today probably doesn't work at all given that the maintainers
  left many many years ago. So move it to staging where it will be
  removed in a few releases if no one screams.

  Other than that, lots of little things. The usual gadget and xhci and
  usb serial driver updates, along with a bunch of sysfs file cleanups
  due to the driver core changes to support that. Nothing really major,
  just constant forward progress.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (159 commits)
  USB: usbcore: Fix slab-out-of-bounds bug during device reset
  usb: cdns3: Remove redundant dev_err call in cdns3_probe()
  USB: rio500: Fix lockdep violation
  USB: rio500: simplify locking
  usb: mtu3: register a USB Role Switch for dual role mode
  usb: common: add USB GPIO based connection detection driver
  usb: common: create Kconfig file
  usb: roles: get usb-role-switch from parent
  usb: roles: Add fwnode_usb_role_switch_get() function
  device connection: Add fwnode_connection_find_match()
  usb: roles: Introduce stubs for the exiting functions in role.h
  dt-bindings: usb: mtu3: add properties about USB Role Switch
  dt-bindings: usb: add binding for USB GPIO based connection detection driver
  dt-bindings: connector: add optional properties for Type-B
  dt-binding: usb: add usb-role-switch property
  usbip: Implement SG support to vhci-hcd and stub driver
  usb: roles: intel: Enable static DRD mode for role switch
  xhci-ext-caps.c: Add property to disable Intel SW switch
  usb: dwc3: remove generic PHY calibrate() calls
  usb: core: phy: add support for PHY calibration
  ...

1 files changed, 8 insertions, 42 deletions

diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index 7931e6cecc70..2305d425e6c9 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -106,38 +106,13 @@ err:
 }
 static DEVICE_ATTR_WO(usbip_sockfd);
 
-static int stub_add_files(struct device *dev)
-{
-	int err = 0;
-
-	err = device_create_file(dev, &dev_attr_usbip_status);
-	if (err)
-		goto err_status;
-
-	err = device_create_file(dev, &dev_attr_usbip_sockfd);
-	if (err)
-		goto err_sockfd;
-
-	err = device_create_file(dev, &dev_attr_usbip_debug);
-	if (err)
-		goto err_debug;
-
-	return 0;
-
-err_debug:
-	device_remove_file(dev, &dev_attr_usbip_sockfd);
-err_sockfd:
-	device_remove_file(dev, &dev_attr_usbip_status);
-err_status:
-	return err;
-}
-
-static void stub_remove_files(struct device *dev)
-{
-	device_remove_file(dev, &dev_attr_usbip_status);
-	device_remove_file(dev, &dev_attr_usbip_sockfd);
-	device_remove_file(dev, &dev_attr_usbip_debug);
-}
+static struct attribute *usbip_attrs[] = {
+	&dev_attr_usbip_status.attr,
+	&dev_attr_usbip_sockfd.attr,
+	&dev_attr_usbip_debug.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(usbip);
 
 static void stub_shutdown_connection(struct usbip_device *ud)
 {
@@ -379,17 +354,8 @@ static int stub_probe(struct usb_device *udev)
 		goto err_port;
 	}
 
-	rc = stub_add_files(&udev->dev);
-	if (rc) {
-		dev_err(&udev->dev, "stub_add_files for %s\n", udev_busid);
-		goto err_files;
-	}
-
 	return 0;
 
-err_files:
-	usb_hub_release_port(udev->parent, udev->portnum,
-			     (struct usb_dev_state *) udev);
 err_port:
 	dev_set_drvdata(&udev->dev, NULL);
 	usb_put_dev(udev);
@@ -457,7 +423,6 @@ static void stub_disconnect(struct usb_device *udev)
 	/*
 	 * NOTE: rx/tx threads are invoked for each usb_device.
 	 */
-	stub_remove_files(&udev->dev);
 
 	/* release port */
 	rc = usb_hub_release_port(udev->parent, udev->portnum,
@@ -526,4 +491,5 @@ struct usb_device_driver stub_driver = {
 	.resume		= stub_resume,
 #endif
 	.supports_autosuspend	=	0,
+	.dev_groups	= usbip_groups,
 };