USB: dev_groups support for usb drivers

Now that the driver core supports the ability for individual drivers to
have attribute groups added/removed when a device is bound/unbound to a
driver automatically, we should take advantage of that in the USB
subsystem.

This patch series adds dev_groups support to struct usb_driver and
struct usb_device_driver (needed for the usbip driver), and then
converts a number of individual USB drivers over to use this api.

Greg Kroah-Hartman (12):
  USB: add support for dev_groups to struct usb_driver
  USB: add support for dev_groups to struct usb_device_driver
  USB: atm: cxacru: convert to use dev_groups
  USB: ueagle-atm: convert to use dev_groups
  USB: usblp: convert to use dev_groups
  USB: usbtmc: convert to use dev_groups
  USB: cypress_cy7c63: convert to use dev_groups
  USB: cytherm: convert to use dev_groups
  USB: lvstest: convert to use dev_groups
  USB: trancevibrator: convert to use dev_groups
  USB: usbsevseg: convert to use dev_groups
  USB: usbip: convert to use dev_groups

 drivers/usb/atm/cxacru.c          | 58 ++++++++++++++++------------
 drivers/usb/atm/ueagle-atm.c      | 16 ++------
 drivers/usb/class/usblp.c         | 13 ++++---
 drivers/usb/class/usbtmc.c        | 13 ++-----
 drivers/usb/core/driver.c         |  2 +
 drivers/usb/misc/cypress_cy7c63.c | 29 ++++----------
 drivers/usb/misc/cytherm.c        | 64 +++++++++----------------------
 drivers/usb/misc/lvstest.c        | 19 ++-------
 drivers/usb/misc/trancevibrator.c | 15 ++++----
 drivers/usb/misc/usbsevseg.c      | 17 ++------
 drivers/usb/usbip/stub_dev.c      | 50 ++++--------------------
 include/linux/usb.h               |  6 +++
 12 files changed, 104 insertions(+), 198 deletions(-)

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2.22.0