USB: mark USB drivers as being GPL only

Over two years ago, the Linux USB developers stated that they believed
there was no way to create a USB kernel driver that was not under the
GPL.  This patch moves the USB apis to enforce that decision.

There are no known closed source USB drivers in the wild, so this patch
should cause no problems.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 53fe049b40f5..68fc5219ca15 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -494,6 +494,7 @@ void usb_hub_tt_clear_buffer (struct usb_device *udev, int pipe)
         schedule_work (&tt->kevent);
         spin_unlock_irqrestore (&tt->lock, flags);
 }
+EXPORT_SYMBOL_GPL(usb_hub_tt_clear_buffer);
 
 static void hub_power_on(struct usb_hub *hub)
 {
@@ -3116,7 +3117,7 @@ re_enumerate:
         hub_port_logical_disconnect(parent_hub, port1);
         return -ENODEV;
 }
-EXPORT_SYMBOL(usb_reset_device);
+EXPORT_SYMBOL_GPL(usb_reset_device);
 
 /**
  * usb_reset_composite_device - warn interface drivers and perform a USB port reset
@@ -3187,4 +3188,4 @@ int usb_reset_composite_device(struct usb_device *udev,
         usb_autosuspend_device(udev);
         return ret;
 }
-EXPORT_SYMBOL(usb_reset_composite_device);
+EXPORT_SYMBOL_GPL(usb_reset_composite_device);