685 	struct ffs_epfile *epfile = file->private_data;  in ffs_epfile_io()  local
692 	if (WARN_ON(epfile->ffs->state != FFS_ACTIVE)) {  in ffs_epfile_io()
698 	ep = epfile->ep;  in ffs_epfile_io()
705 		ret = wait_event_interruptible(epfile->wait, (ep = epfile->ep));  in ffs_epfile_io()
713 	halt = (!io_data->read == !epfile->in);  in ffs_epfile_io()
714 	if (halt && epfile->isoc) {  in ffs_epfile_io()
725 		struct usb_gadget *gadget = epfile->ffs->gadget;  in ffs_epfile_io()
728 		spin_lock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
730 		if (epfile->ep != ep) {  in ffs_epfile_io()
731 			spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
741 		spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
756 	ret = ffs_mutex_lock(&epfile->mutex, file->f_flags & O_NONBLOCK);  in ffs_epfile_io()
760 	spin_lock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
762 	if (epfile->ep != ep) {  in ffs_epfile_io()
765 		spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
768 		if (likely(epfile->ep == ep) && !WARN_ON(!ep->ep))  in ffs_epfile_io()
770 		spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
804 			io_data->ffs = epfile->ffs;  in ffs_epfile_io()
816 			spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
829 			spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
856 	mutex_unlock(&epfile->mutex);  in ffs_epfile_io()
860 	spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_io()
861 	mutex_unlock(&epfile->mutex);  in ffs_epfile_io()
870 	struct ffs_epfile *epfile = inode->i_private;  in ffs_epfile_open()  local
874 	if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))  in ffs_epfile_open()
877 	file->private_data = epfile;  in ffs_epfile_open()
878 	ffs_data_opened(epfile->ffs);  in ffs_epfile_open()
886 	struct ffs_epfile *epfile = kiocb->ki_filp->private_data;  in ffs_aio_cancel()  local
891 	spin_lock_irq(&epfile->ffs->eps_lock);  in ffs_aio_cancel()
898 	spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_aio_cancel()
990 	struct ffs_epfile *epfile = inode->i_private;  in ffs_epfile_release()  local
994 	ffs_data_closed(epfile->ffs);  in ffs_epfile_release()
1002 	struct ffs_epfile *epfile = file->private_data;  in ffs_epfile_ioctl()  local
1007 	if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))  in ffs_epfile_ioctl()
1010 	spin_lock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_ioctl()
1011 	if (likely(epfile->ep)) {  in ffs_epfile_ioctl()
1014 			ret = usb_ep_fifo_status(epfile->ep->ep);  in ffs_epfile_ioctl()
1017 			usb_ep_fifo_flush(epfile->ep->ep);  in ffs_epfile_ioctl()
1021 			ret = usb_ep_clear_halt(epfile->ep->ep);  in ffs_epfile_ioctl()
1024 			ret = epfile->ep->num;  in ffs_epfile_ioctl()
1031 			switch (epfile->ffs->gadget->speed) {  in ffs_epfile_ioctl()
1041 			desc = epfile->ep->descs[desc_idx];  in ffs_epfile_ioctl()
1043 			spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_ioctl()
1055 	spin_unlock_irq(&epfile->ffs->eps_lock);  in ffs_epfile_ioctl()
1561 	struct ffs_epfile *epfile, *epfiles;  in ffs_epfiles_create()  local
1571 	epfile = epfiles;  in ffs_epfiles_create()
1572 	for (i = 1; i <= count; ++i, ++epfile) {  in ffs_epfiles_create()
1573 		epfile->ffs = ffs;  in ffs_epfiles_create()
1574 		mutex_init(&epfile->mutex);  in ffs_epfiles_create()
1575 		init_waitqueue_head(&epfile->wait);  in ffs_epfiles_create()
1577 			sprintf(epfile->name, "ep%02x", ffs->eps_addrmap[i]);  in ffs_epfiles_create()
1579 			sprintf(epfile->name, "ep%u", i);  in ffs_epfiles_create()
1580 		epfile->dentry = ffs_sb_create_file(ffs->sb, epfile->name,  in ffs_epfiles_create()
1581 						 epfile,  in ffs_epfiles_create()
1583 		if (unlikely(!epfile->dentry)) {  in ffs_epfiles_create()
1595 	struct ffs_epfile *epfile = epfiles;  in ffs_epfiles_destroy()  local
1599 	for (; count; --count, ++epfile) {  in ffs_epfiles_destroy()
1600 		BUG_ON(mutex_is_locked(&epfile->mutex) ||  in ffs_epfiles_destroy()
1601 		       waitqueue_active(&epfile->wait));  in ffs_epfiles_destroy()
1602 		if (epfile->dentry) {  in ffs_epfiles_destroy()
1603 			d_delete(epfile->dentry);  in ffs_epfiles_destroy()
1604 			dput(epfile->dentry);  in ffs_epfiles_destroy()
1605 			epfile->dentry = NULL;  in ffs_epfiles_destroy()
1615 	struct ffs_epfile *epfile = func->ffs->epfiles;  in ffs_func_eps_disable()  local
1626 		if (epfile) {  in ffs_func_eps_disable()
1627 			epfile->ep = NULL;  in ffs_func_eps_disable()
1628 			++epfile;  in ffs_func_eps_disable()
1638 	struct ffs_epfile *epfile = ffs->epfiles;  in ffs_func_eps_enable()  local
1669 			epfile->ep = ep;  in ffs_func_eps_enable()
1670 			epfile->in = usb_endpoint_dir_in(ds);  in ffs_func_eps_enable()
1671 			epfile->isoc = usb_endpoint_xfer_isoc(ds);  in ffs_func_eps_enable()
1676 		wake_up(&epfile->wait);  in ffs_func_eps_enable()
1679 		++epfile;  in ffs_func_eps_enable()