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path: root/drivers/usb/core/usb.h
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Diffstat (limited to 'drivers/usb/core/usb.h')
-rw-r--r--drivers/usb/core/usb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 49f69236b420..1217fbbe5829 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -59,6 +59,7 @@ static inline int is_active(struct usb_interface *f)
extern const char *usbcore_name;
/* usbfs stuff */
+extern struct mutex usbfs_mutex;
extern struct usb_driver usbfs_driver;
extern struct file_operations usbfs_devices_fops;
extern struct file_operations usbfs_device_file_operations;