From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/usb/core/message.c | 41 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 39 insertions(+), 2 deletions(-) (limited to 'kernel/drivers/usb/core/message.c') diff --git a/kernel/drivers/usb/core/message.c b/kernel/drivers/usb/core/message.c index f368d2053..8e641b589 100644 --- a/kernel/drivers/usb/core/message.c +++ b/kernel/drivers/usb/core/message.c @@ -1387,8 +1387,6 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate) * new altsetting. */ if (manual) { - int i; - for (i = 0; i < alt->desc.bNumEndpoints; i++) { epaddr = alt->endpoint[i].desc.bEndpointAddress; pipe = __create_pipe(dev, @@ -1555,6 +1553,44 @@ static void usb_release_interface(struct device *dev) kfree(intf); } +/* + * usb_deauthorize_interface - deauthorize an USB interface + * + * @intf: USB interface structure + */ +void usb_deauthorize_interface(struct usb_interface *intf) +{ + struct device *dev = &intf->dev; + + device_lock(dev->parent); + + if (intf->authorized) { + device_lock(dev); + intf->authorized = 0; + device_unlock(dev); + + usb_forced_unbind_intf(intf); + } + + device_unlock(dev->parent); +} + +/* + * usb_authorize_interface - authorize an USB interface + * + * @intf: USB interface structure + */ +void usb_authorize_interface(struct usb_interface *intf) +{ + struct device *dev = &intf->dev; + + if (!intf->authorized) { + device_lock(dev); + intf->authorized = 1; /* authorize interface */ + device_unlock(dev); + } +} + static int usb_if_uevent(struct device *dev, struct kobj_uevent_env *env) { struct usb_device *usb_dev; @@ -1807,6 +1843,7 @@ free_interfaces: intfc = cp->intf_cache[i]; intf->altsetting = intfc->altsetting; intf->num_altsetting = intfc->num_altsetting; + intf->authorized = !!HCD_INTF_AUTHORIZED(hcd); kref_get(&intfc->ref); alt = usb_altnum_to_altsetting(intf, 0); -- cgit 1.2.3-korg