29 	spin_lock_irq(&sdev->ud.lock);  in usbip_status_show()
30 	status = sdev->ud.status;  in usbip_status_show()
31 	spin_unlock_irq(&sdev->ud.lock);  in usbip_status_show()
66 		mutex_lock(&sdev->ud.sysfs_lock);  in usbip_sockfd_store()
67 		spin_lock_irq(&sdev->ud.lock);  in usbip_sockfd_store()
69 		if (sdev->ud.status != SDEV_ST_AVAILABLE) {  in usbip_sockfd_store()
87 		spin_unlock_irq(&sdev->ud.lock);  in usbip_sockfd_store()
88 		tcp_rx = kthread_create(stub_rx_loop, &sdev->ud, "stub_rx");  in usbip_sockfd_store()
93 		tcp_tx = kthread_create(stub_tx_loop, &sdev->ud, "stub_tx");  in usbip_sockfd_store()
104 		/* lock and update sdev->ud state */  in usbip_sockfd_store()
105 		spin_lock_irq(&sdev->ud.lock);  in usbip_sockfd_store()
106 		sdev->ud.tcp_socket = socket;  in usbip_sockfd_store()
107 		sdev->ud.sockfd = sockfd;  in usbip_sockfd_store()
108 		sdev->ud.tcp_rx = tcp_rx;  in usbip_sockfd_store()
109 		sdev->ud.tcp_tx = tcp_tx;  in usbip_sockfd_store()
110 		sdev->ud.status = SDEV_ST_USED;  in usbip_sockfd_store()
111 		spin_unlock_irq(&sdev->ud.lock);  in usbip_sockfd_store()
113 		wake_up_process(sdev->ud.tcp_rx);  in usbip_sockfd_store()
114 		wake_up_process(sdev->ud.tcp_tx);  in usbip_sockfd_store()
116 		mutex_unlock(&sdev->ud.sysfs_lock);  in usbip_sockfd_store()
121 		mutex_lock(&sdev->ud.sysfs_lock);  in usbip_sockfd_store()
123 		spin_lock_irq(&sdev->ud.lock);  in usbip_sockfd_store()
124 		if (sdev->ud.status != SDEV_ST_USED)  in usbip_sockfd_store()
127 		spin_unlock_irq(&sdev->ud.lock);  in usbip_sockfd_store()
129 		usbip_event_add(&sdev->ud, SDEV_EVENT_DOWN);  in usbip_sockfd_store()
130 		mutex_unlock(&sdev->ud.sysfs_lock);  in usbip_sockfd_store()
138 	spin_unlock_irq(&sdev->ud.lock);  in usbip_sockfd_store()
140 	mutex_unlock(&sdev->ud.sysfs_lock);  in usbip_sockfd_store()
153 static void stub_shutdown_connection(struct usbip_device *ud)  in stub_shutdown_connection()  argument
155 	struct stub_device *sdev = container_of(ud, struct stub_device, ud);  in stub_shutdown_connection()
163 	if (ud->tcp_socket) {  in stub_shutdown_connection()
164 		dev_dbg(&sdev->udev->dev, "shutdown sockfd %d\n", ud->sockfd);  in stub_shutdown_connection()
165 		kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR);  in stub_shutdown_connection()
169 	if (ud->tcp_rx) {  in stub_shutdown_connection()
170 		kthread_stop_put(ud->tcp_rx);  in stub_shutdown_connection()
171 		ud->tcp_rx = NULL;  in stub_shutdown_connection()
173 	if (ud->tcp_tx) {  in stub_shutdown_connection()
174 		kthread_stop_put(ud->tcp_tx);  in stub_shutdown_connection()
175 		ud->tcp_tx = NULL;  in stub_shutdown_connection()
184 	if (ud->tcp_socket) {  in stub_shutdown_connection()
185 		sockfd_put(ud->tcp_socket);  in stub_shutdown_connection()
186 		ud->tcp_socket = NULL;  in stub_shutdown_connection()
187 		ud->sockfd = -1;  in stub_shutdown_connection()
212 static void stub_device_reset(struct usbip_device *ud)  in stub_device_reset()  argument
214 	struct stub_device *sdev = container_of(ud, struct stub_device, ud);  in stub_device_reset()
223 		spin_lock_irq(&ud->lock);  in stub_device_reset()
224 		ud->status = SDEV_ST_ERROR;  in stub_device_reset()
225 		spin_unlock_irq(&ud->lock);  in stub_device_reset()
233 	spin_lock_irq(&ud->lock);  in stub_device_reset()
236 		ud->status = SDEV_ST_ERROR;  in stub_device_reset()
239 		ud->status = SDEV_ST_AVAILABLE;  in stub_device_reset()
241 	spin_unlock_irq(&ud->lock);  in stub_device_reset()
244 static void stub_device_unusable(struct usbip_device *ud)  in stub_device_unusable()  argument
246 	spin_lock_irq(&ud->lock);  in stub_device_unusable()
247 	ud->status = SDEV_ST_ERROR;  in stub_device_unusable()
248 	spin_unlock_irq(&ud->lock);  in stub_device_unusable()
278 	sdev->ud.side		= USBIP_STUB;  in stub_device_alloc()
279 	sdev->ud.status		= SDEV_ST_AVAILABLE;  in stub_device_alloc()
280 	spin_lock_init(&sdev->ud.lock);  in stub_device_alloc()
281 	mutex_init(&sdev->ud.sysfs_lock);  in stub_device_alloc()
282 	sdev->ud.tcp_socket	= NULL;  in stub_device_alloc()
283 	sdev->ud.sockfd		= -1;  in stub_device_alloc()
294 	sdev->ud.eh_ops.shutdown = stub_shutdown_connection;  in stub_device_alloc()
295 	sdev->ud.eh_ops.reset    = stub_device_reset;  in stub_device_alloc()
296 	sdev->ud.eh_ops.unusable = stub_device_unusable;  in stub_device_alloc()
298 	usbip_start_eh(&sdev->ud);  in stub_device_alloc()
420 	usbip_event_add(&busid_priv->sdev->ud, SDEV_EVENT_REMOVED);  in shutdown_busid()
423 	usbip_stop_eh(&busid_priv->sdev->ud);  in shutdown_busid()