181 	struct netpoll_info *ni = rcu_dereference_bh(dev->npinfo);  in netpoll_poll_dev()  local
188 	if (down_trylock(&ni->dev_lock))  in netpoll_poll_dev()
192 		up(&ni->dev_lock);  in netpoll_poll_dev()
198 		up(&ni->dev_lock);  in netpoll_poll_dev()
207 	up(&ni->dev_lock);  in netpoll_poll_dev()
214 	struct netpoll_info *ni;  in netpoll_poll_disable()  local
218 	ni = srcu_dereference(dev->npinfo, &netpoll_srcu);  in netpoll_poll_disable()
219 	if (ni)  in netpoll_poll_disable()
220 		down(&ni->dev_lock);  in netpoll_poll_disable()
227 	struct netpoll_info *ni;  in netpoll_poll_enable()  local
229 	ni = rcu_dereference(dev->npinfo);  in netpoll_poll_enable()
230 	if (ni)  in netpoll_poll_enable()
231 		up(&ni->dev_lock);  in netpoll_poll_enable()