#ifdef CONFIG_PM
 
 /* Caller has locked udev's pm_mutex */
-static int suspend_device(struct usb_device *udev, pm_message_t msg)
+static int usb_suspend_device(struct usb_device *udev, pm_message_t msg)
 {
        struct usb_device_driver        *udriver;
        int                             status = 0;
 }
 
 /* Caller has locked udev's pm_mutex */
-static int resume_device(struct usb_device *udev)
+static int usb_resume_device(struct usb_device *udev)
 {
        struct usb_device_driver        *udriver;
        int                             status = 0;
 }
 
 /* Caller has locked intf's usb_device's pm mutex */
-static int suspend_interface(struct usb_interface *intf, pm_message_t msg)
+static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
 {
        struct usb_driver       *driver;
        int                     status = 0;
 }
 
 /* Caller has locked intf's usb_device's pm_mutex */
-static int resume_interface(struct usb_interface *intf)
+static int usb_resume_interface(struct usb_interface *intf)
 {
        struct usb_driver       *driver;
        int                     status = 0;
        if (udev->actconfig) {
                for (; i < udev->actconfig->desc.bNumInterfaces; i++) {
                        intf = udev->actconfig->interface[i];
-                       status = suspend_interface(intf, msg);
+                       status = usb_suspend_interface(intf, msg);
                        if (status != 0)
                                break;
                }
        }
        if (status == 0)
-               status = suspend_device(udev, msg);
+               status = usb_suspend_device(udev, msg);
 
        /* If the suspend failed, resume interfaces that did get suspended */
        if (status != 0) {
                while (--i >= 0) {
                        intf = udev->actconfig->interface[i];
-                       resume_interface(intf);
+                       usb_resume_interface(intf);
                }
 
        /* If the suspend succeeded, propagate it up the tree */
                                status = -EHOSTUNREACH;
                }
                if (status == 0)
-                       status = resume_device(udev);
+                       status = usb_resume_device(udev);
                if (parent)
                        usb_pm_unlock(parent);
        } else {
 
                /* Needed only for setting udev->dev.power.power_state.event
                 * and for possible debugging message. */
-               status = resume_device(udev);
+               status = usb_resume_device(udev);
        }
 
        /* Now the parent won't suspend until we are finished */
        if (status == 0 && udev->actconfig) {
                for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
                        intf = udev->actconfig->interface[i];
-                       resume_interface(intf);
+                       usb_resume_interface(intf);
                }
        }