16 	struct usbip_device *ud;  member
22 static void set_event(struct usbip_device *ud, unsigned long event)  in set_event()  argument
26 	spin_lock_irqsave(&ud->lock, flags);  in set_event()
27 	ud->event |= event;  in set_event()
28 	spin_unlock_irqrestore(&ud->lock, flags);  in set_event()
31 static void unset_event(struct usbip_device *ud, unsigned long event)  in unset_event()  argument
35 	spin_lock_irqsave(&ud->lock, flags);  in unset_event()
36 	ud->event &= ~event;  in unset_event()
37 	spin_unlock_irqrestore(&ud->lock, flags);  in unset_event()
43 	struct usbip_device *ud = NULL;  in get_event()  local
54 		ud = ue->ud;  in get_event()
57 	return ud;  in get_event()
64 	struct usbip_device *ud;  in event_handler()  local
70 	while ((ud = get_event()) != NULL) {  in event_handler()
71 		usbip_dbg_eh("pending event %lx\n", ud->event);  in event_handler()
73 		mutex_lock(&ud->sysfs_lock);  in event_handler()
78 		if (ud->event & USBIP_EH_SHUTDOWN) {  in event_handler()
79 			ud->eh_ops.shutdown(ud);  in event_handler()
80 			unset_event(ud, USBIP_EH_SHUTDOWN);  in event_handler()
84 		if (ud->event & USBIP_EH_RESET) {  in event_handler()
85 			ud->eh_ops.reset(ud);  in event_handler()
86 			unset_event(ud, USBIP_EH_RESET);  in event_handler()
90 		if (ud->event & USBIP_EH_UNUSABLE) {  in event_handler()
91 			ud->eh_ops.unusable(ud);  in event_handler()
92 			unset_event(ud, USBIP_EH_UNUSABLE);  in event_handler()
94 		mutex_unlock(&ud->sysfs_lock);  in event_handler()
96 		wake_up(&ud->eh_waitq);  in event_handler()
100 int usbip_start_eh(struct usbip_device *ud)  in usbip_start_eh()  argument
102 	init_waitqueue_head(&ud->eh_waitq);  in usbip_start_eh()
103 	ud->event = 0;  in usbip_start_eh()
108 void usbip_stop_eh(struct usbip_device *ud)  in usbip_stop_eh()  argument
110 	unsigned long pending = ud->event & ~USBIP_EH_BYE;  in usbip_stop_eh()
112 	if (!(ud->event & USBIP_EH_BYE))  in usbip_stop_eh()
118 	wait_event_interruptible(ud->eh_waitq, !(ud->event & ~USBIP_EH_BYE));  in usbip_stop_eh()
144 void usbip_event_add(struct usbip_device *ud, unsigned long event)  in usbip_event_add()  argument
149 	if (ud->event & USBIP_EH_BYE)  in usbip_event_add()
152 	set_event(ud, event);  in usbip_event_add()
157 		if (ue->ud == ud)  in usbip_event_add()
165 	ue->ud = ud;  in usbip_event_add()
175 int usbip_event_happened(struct usbip_device *ud)  in usbip_event_happened()  argument
180 	spin_lock_irqsave(&ud->lock, flags);  in usbip_event_happened()
181 	if (ud->event != 0)  in usbip_event_happened()
183 	spin_unlock_irqrestore(&ud->lock, flags);  in usbip_event_happened()