176 	struct netpoll_info *ni = rcu_dereference_bh(dev->npinfo);  in netpoll_poll_dev()  local
183 	if (!ni || down_trylock(&ni->dev_lock))  in netpoll_poll_dev()
187 		up(&ni->dev_lock);  in netpoll_poll_dev()
197 	up(&ni->dev_lock);  in netpoll_poll_dev()
205 	struct netpoll_info *ni;  in netpoll_poll_disable()  local
209 	ni = srcu_dereference(dev->npinfo, &netpoll_srcu);  in netpoll_poll_disable()
210 	if (ni)  in netpoll_poll_disable()
211 		down(&ni->dev_lock);  in netpoll_poll_disable()
218 	struct netpoll_info *ni;  in netpoll_poll_enable()  local
220 	ni = rcu_dereference(dev->npinfo);  in netpoll_poll_enable()
221 	if (ni)  in netpoll_poll_enable()
222 		up(&ni->dev_lock);  in netpoll_poll_enable()