60 static int activate_fd(int irq, int fd, int type, void *dev_id)  in activate_fd()  argument
67 	err = os_set_fd_async(fd);  in activate_fd()
81 				     .fd 		= fd,  in activate_fd()
90 		if ((irq_fd->fd == fd) && (irq_fd->type == type)) {  in activate_fd()
91 			printk(KERN_ERR "Registering fd %d twice\n", fd);  in activate_fd()
100 		fd = -1;  in activate_fd()
106 		n = os_create_pollfd(fd, events, tmp_pfd, n);  in activate_fd()
141 	maybe_sigio_broken(fd, (type == IRQ_READ));  in activate_fd()
182 static int same_fd(struct irq_fd *irq, void *fd)  in same_fd()  argument
184 	return (irq->fd == *((int *)fd));  in same_fd()
187 void free_irq_by_fd(int fd)  in free_irq_by_fd()  argument
189 	free_irq_by_cb(same_fd, &fd);  in free_irq_by_fd()
193 static struct irq_fd *find_irq_by_fd(int fd, int irqnum, int *index_out)  in find_irq_by_fd()  argument
200 		if ((irq->fd == fd) && (irq->irq == irqnum))  in find_irq_by_fd()
206 		       fd);  in find_irq_by_fd()
210 	if ((fdi != -1) && (fdi != fd)) {  in find_irq_by_fd()
212 		       "and pollfds, fd %d vs %d, need %d\n", irq->fd,  in find_irq_by_fd()
213 		       fdi, fd);  in find_irq_by_fd()
222 void reactivate_fd(int fd, int irqnum)  in reactivate_fd()  argument
229 	irq = find_irq_by_fd(fd, irqnum, &i);  in reactivate_fd()
234 	os_set_pollfd(i, irq->fd);  in reactivate_fd()
237 	add_sigio_fd(fd);  in reactivate_fd()
240 void deactivate_fd(int fd, int irqnum)  in deactivate_fd()  argument
247 	irq = find_irq_by_fd(fd, irqnum, &i);  in deactivate_fd()
256 	ignore_sigio_fd(fd);  in deactivate_fd()
272 		err = os_clear_fd_async(irq->fd);  in deactivate_all_fds()
304 int um_request_irq(unsigned int irq, int fd, int type,  in um_request_irq()  argument
311 	if (fd != -1) {  in um_request_irq()
312 		err = activate_fd(irq, fd, type, dev_id);  in um_request_irq()