508 	struct epoll_params epoll_params;  in ep_eventpoll_bp_ioctl()  local
512 		if (copy_from_user(&epoll_params, uarg, sizeof(epoll_params)))  in ep_eventpoll_bp_ioctl()
516 		if (epoll_params.__pad)  in ep_eventpoll_bp_ioctl()
519 		if (epoll_params.busy_poll_usecs > S32_MAX)  in ep_eventpoll_bp_ioctl()
522 		if (epoll_params.prefer_busy_poll > 1)  in ep_eventpoll_bp_ioctl()
525 		if (epoll_params.busy_poll_budget > NAPI_POLL_WEIGHT &&  in ep_eventpoll_bp_ioctl()
529 		WRITE_ONCE(ep->busy_poll_usecs, epoll_params.busy_poll_usecs);  in ep_eventpoll_bp_ioctl()
530 		WRITE_ONCE(ep->busy_poll_budget, epoll_params.busy_poll_budget);  in ep_eventpoll_bp_ioctl()
531 		WRITE_ONCE(ep->prefer_busy_poll, epoll_params.prefer_busy_poll);  in ep_eventpoll_bp_ioctl()
534 		memset(&epoll_params, 0, sizeof(epoll_params));  in ep_eventpoll_bp_ioctl()
535 		epoll_params.busy_poll_usecs = READ_ONCE(ep->busy_poll_usecs);  in ep_eventpoll_bp_ioctl()
536 		epoll_params.busy_poll_budget = READ_ONCE(ep->busy_poll_budget);  in ep_eventpoll_bp_ioctl()
537 		epoll_params.prefer_busy_poll = READ_ONCE(ep->prefer_busy_poll);  in ep_eventpoll_bp_ioctl()
538 		if (copy_to_user(uarg, &epoll_params, sizeof(epoll_params)))  in ep_eventpoll_bp_ioctl()