USB: remove CONFIG_USB_DEVICE_CLASS

This option has been deprecated for many years now, and no userspace
tools use it anymore, so it should be safe to finally remove it.

Reported-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 49 deletions

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 90db6e2a573f..c4a1af8a954b 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -2051,44 +2051,13 @@ static void usbdev_remove(struct usb_device *udev)
         }
 }
 
-#ifdef CONFIG_USB_DEVICE_CLASS
-static struct class *usb_classdev_class;
-
-static int usb_classdev_add(struct usb_device *dev)
-{
-        struct device *cldev;
-
-        cldev = device_create(usb_classdev_class, &dev->dev, dev->dev.devt,
-                              NULL, "usbdev%d.%d", dev->bus->busnum,
-                              dev->devnum);
-        if (IS_ERR(cldev))
-                return PTR_ERR(cldev);
-        dev->usb_classdev = cldev;
-        return 0;
-}
-
-static void usb_classdev_remove(struct usb_device *dev)
-{
-        if (dev->usb_classdev)
-                device_unregister(dev->usb_classdev);
-}
-
-#else
-#define usb_classdev_add(dev)           0
-#define usb_classdev_remove(dev)        do {} while (0)
-
-#endif
-
 static int usbdev_notify(struct notifier_block *self,
                                unsigned long action, void *dev)
 {
         switch (action) {
         case USB_DEVICE_ADD:
-                if (usb_classdev_add(dev))
-                        return NOTIFY_BAD;
                 break;
         case USB_DEVICE_REMOVE:
-                usb_classdev_remove(dev);
                 usbdev_remove(dev);
                 break;
         }
@@ -2118,21 +2087,6 @@ int __init usb_devio_init(void)
                        USB_DEVICE_MAJOR);
                 goto error_cdev;
         }
-#ifdef CONFIG_USB_DEVICE_CLASS
-        usb_classdev_class = class_create(THIS_MODULE, "usb_device");
-        if (IS_ERR(usb_classdev_class)) {
-                printk(KERN_ERR "Unable to register usb_device class\n");
-                retval = PTR_ERR(usb_classdev_class);
-                cdev_del(&usb_device_cdev);
-                usb_classdev_class = NULL;
-                goto out;
-        }
-        /* devices of this class shadow the major:minor of their parent
-         * device, so clear ->dev_kobj to prevent adding duplicate entries
-         * to /sys/dev
-         */
-        usb_classdev_class->dev_kobj = NULL;
-#endif
         usb_register_notify(&usbdev_nb);
 out:
         return retval;
@@ -2145,9 +2099,6 @@ error_cdev:
 void usb_devio_cleanup(void)
 {
         usb_unregister_notify(&usbdev_nb);
-#ifdef CONFIG_USB_DEVICE_CLASS
-        class_destroy(usb_classdev_class);
-#endif
         cdev_del(&usb_device_cdev);
         unregister_chrdev_region(USB_DEVICE_DEV, USB_DEVICE_MAX);
 }