staging: usbip: cleanup of comments

Removed commented-out code, obsolete comments, and fixed comment typos.
Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/usbip/stub_dev.c

@@ -477,19 +477,17 @@ static void stub_disconnect(struct usb_interface *interface)
 	/* get stub_device */
 	if (!sdev) {
 		dev_err(&interface->dev, "could not get device");
-		/* BUG(); */
 		return;
 	}
 
 	usb_set_intfdata(interface, NULL);
 
 	/*
-	 * NOTE:
-	 * rx/tx threads are invoked for each usb_device.
+	 * NOTE: rx/tx threads are invoked for each usb_device.
 	 */
 	stub_remove_files(&interface->dev);
 
-	/*If usb reset called from event handler*/
+	/* If usb reset is called from event handler */
 	if (busid_priv->sdev->ud.eh == current) {
 		busid_priv->interf_count--;
 		return;
@@ -504,13 +502,13 @@ static void stub_disconnect(struct usb_interface *interface)
 
 	busid_priv->interf_count = 0;
 
-	/* 1. shutdown the current connection */
+	/* shutdown the current connection */
 	shutdown_busid(busid_priv);
 
 	usb_put_dev(sdev->udev);
 	usb_put_intf(interface);
 
-	/* 3. free sdev */
+	/* free sdev */
 	busid_priv->sdev = NULL;
 	stub_device_free(sdev);
 

drivers/staging/usbip/stub_rx.c

@@ -164,7 +164,6 @@ static int tweak_set_configuration_cmd(struct urb *urb)
 		 config, dev_name(&urb->dev->dev));
 
 	return 0;
-	/* return usb_driver_set_configuration(urb->dev, config); */
 }
 
 static int tweak_reset_device_cmd(struct urb *urb)
@@ -480,7 +479,7 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
 		return;
 	}
 
-	/* set priv->urb->transfer_buffer */
+	/* allocate urb transfer buffer, if needed */
 	if (pdu->u.cmd_submit.transfer_buffer_length > 0) {
 		priv->urb->transfer_buffer =
 			kzalloc(pdu->u.cmd_submit.transfer_buffer_length,
@@ -492,7 +491,7 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
 		}
 	}
 
-	/* set priv->urb->setup_packet */
+	/* copy urb setup packet */
 	priv->urb->setup_packet = kmemdup(&pdu->u.cmd_submit.setup, 8,
 					  GFP_KERNEL);
 	if (!priv->urb->setup_packet) {

drivers/staging/usbip/stub_tx.c

@@ -192,7 +192,6 @@ static int stub_send_ret_submit(struct stub_device *sdev)
 		setup_ret_submit_pdu(&pdu_header, urb);
 		usbip_dbg_stub_tx("setup txdata seqnum: %d urb: %p\n",
 				  pdu_header.base.seqnum, urb);
-		/*usbip_dump_header(pdu_header);*/
 		usbip_header_correct_endian(&pdu_header, 1);
 
 		iov[iovnum].iov_base = &pdu_header;

drivers/staging/usbip/usbip_common.c

@@ -439,7 +439,6 @@ static void usbip_pack_cmd_submit(struct usbip_header *pdu, struct urb *urb,
 	 * will be discussed when usbip is ported to other operating systems.
 	 */
 	if (pack) {
-		/* vhci_tx.c */
 		spdu->transfer_flags =
 			tweak_transfer_flags(urb->transfer_flags);
 		spdu->transfer_buffer_length	= urb->transfer_buffer_length;
@@ -447,9 +446,7 @@ static void usbip_pack_cmd_submit(struct usbip_header *pdu, struct urb *urb,
 		spdu->number_of_packets		= urb->number_of_packets;
 		spdu->interval			= urb->interval;
 	} else  {
-		/* stub_rx.c */
 		urb->transfer_flags         = spdu->transfer_flags;
-
 		urb->transfer_buffer_length = spdu->transfer_buffer_length;
 		urb->start_frame            = spdu->start_frame;
 		urb->number_of_packets      = spdu->number_of_packets;
@@ -463,16 +460,12 @@ static void usbip_pack_ret_submit(struct usbip_header *pdu, struct urb *urb,
 	struct usbip_header_ret_submit *rpdu = &pdu->u.ret_submit;
 
 	if (pack) {
-		/* stub_tx.c */
-
 		rpdu->status		= urb->status;
 		rpdu->actual_length	= urb->actual_length;
 		rpdu->start_frame	= urb->start_frame;
 		rpdu->number_of_packets = urb->number_of_packets;
 		rpdu->error_count	= urb->error_count;
 	} else {
-		/* vhci_rx.c */
-
 		urb->status		= rpdu->status;
 		urb->actual_length	= rpdu->actual_length;
 		urb->start_frame	= rpdu->start_frame;
@@ -678,8 +671,6 @@ int usbip_recv_iso(struct usbip_device *ud, struct urb *urb)
 
 	/* my Bluetooth dongle gets ISO URBs which are np = 0 */
 	if (np == 0) {
-		/* pr_info("iso np == 0\n"); */
-		/* usbip_dump_urb(urb); */
 		return 0;
 	}
 
@@ -751,7 +742,7 @@ void usbip_pad_iso(struct usbip_device *ud, struct urb *urb)
 	/*
 	 * if actual_length is transfer_buffer_length then no padding is
 	 * present.
-	*/
+	 */
 	if (urb->actual_length == urb->transfer_buffer_length)
 		return;
 
@@ -775,14 +766,12 @@ int usbip_recv_xbuff(struct usbip_device *ud, struct urb *urb)
 	int size;
 
 	if (ud->side == USBIP_STUB) {
-		/* stub_rx.c */
 		/* the direction of urb must be OUT. */
 		if (usb_pipein(urb->pipe))
 			return 0;
 
 		size = urb->transfer_buffer_length;
 	} else {
-		/* vhci_rx.c */
 		/* the direction of urb must be IN. */
 		if (usb_pipeout(urb->pipe))
 			return 0;

drivers/staging/usbip/vhci_hcd.c

@@ -140,10 +140,6 @@ void rh_port_connect(int rhport, enum usb_device_speed speed)
 		break;
 	}
 
-	/* spin_lock(&the_controller->vdev[rhport].ud.lock);
-	 * the_controller->vdev[rhport].ud.status = VDEV_CONNECT;
-	 * spin_unlock(&the_controller->vdev[rhport].ud.lock); */
-
 	spin_unlock_irqrestore(&the_controller->lock, flags);
 
 	usb_hcd_poll_rh_status(vhci_to_hcd(the_controller));
@@ -156,16 +152,11 @@ static void rh_port_disconnect(int rhport)
 	usbip_dbg_vhci_rh("rh_port_disconnect %d\n", rhport);
 
 	spin_lock_irqsave(&the_controller->lock, flags);
-	/* stop_activity(dum, driver); */
+
 	the_controller->port_status[rhport] &= ~USB_PORT_STAT_CONNECTION;
 	the_controller->port_status[rhport] |=
 					(1 << USB_PORT_FEAT_C_CONNECTION);
 
-	/* not yet complete the disconnection
-	 * spin_lock(&vdev->ud.lock);
-	 * vdev->ud.status = VHC_ST_DISCONNECT;
-	 * spin_unlock(&vdev->ud.lock); */
-
 	spin_unlock_irqrestore(&the_controller->lock, flags);
 	usb_hcd_poll_rh_status(vhci_to_hcd(the_controller));
 }
@@ -228,7 +219,6 @@ static int vhci_hub_status(struct usb_hcd *hcd, char *buf)
 	return changed ? retval : 0;
 }
 
-/* See hub_configure in hub.c */
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
 {
 	memset(desc, 0, sizeof(*desc));
@@ -292,8 +282,6 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			usbip_dbg_vhci_rh(" ClearPortFeature: "
 					  "USB_PORT_FEAT_POWER\n");
 			dum->port_status[rhport] = 0;
-			/* dum->address = 0; */
-			/* dum->hdev = 0; */
 			dum->resuming = 0;
 			break;
 		case USB_PORT_FEAT_C_RESET:
@@ -333,11 +321,11 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			retval = -EPIPE;
 		}
 
-		/* we do no care of resume. */
+		/* we do not care about resume. */
 
 		/* whoever resets or resumes must GetPortStatus to
 		 * complete it!!
-		 *                                   */
+		 */
 		if (dum->resuming && time_after(jiffies, dum->re_timeout)) {
 			dum->port_status[rhport] |=
 				(1 << USB_PORT_FEAT_C_SUSPEND);
@@ -345,11 +333,6 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 				~(1 << USB_PORT_FEAT_SUSPEND);
 			dum->resuming = 0;
 			dum->re_timeout = 0;
-			/* if (dum->driver && dum->driver->resume) {
-			 *	spin_unlock (&dum->lock);
-			 *	dum->driver->resume (&dum->gadget);
-			 *	spin_lock (&dum->lock);
-			 * } */
 		}
 
 		if ((dum->port_status[rhport] & (1 << USB_PORT_FEAT_RESET)) !=
@@ -411,9 +394,6 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 	default:
 		pr_err("default: no such request\n");
-		/* dev_dbg (hardware,
-		 *		"hub control req%04x v%04x i%04x l%d\n",
-		 *		typeReq, wValue, wIndex, wLength); */
 
 		/* "protocol stall" on error */
 		retval = -EPIPE;
@@ -456,7 +436,6 @@ static void vhci_tx_urb(struct urb *urb)
 
 	if (!vdev) {
 		pr_err("could not get virtual device");
-		/* BUG(); */
 		return;
 	}
 
@@ -813,7 +792,7 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
 		kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR);
 	}
 
-	/* kill threads related to this sdev, if v.c. exists */
+	/* kill threads related to this sdev */
 	if (vdev->ud.tcp_rx) {
 		kthread_stop_put(vdev->ud.tcp_rx);
 		vdev->ud.tcp_rx = NULL;
@@ -976,8 +955,6 @@ static int vhci_bus_suspend(struct usb_hcd *hcd)
 	dev_dbg(&hcd->self.root_hub->dev, "%s\n", __func__);
 
 	spin_lock_irq(&vhci->lock);
-	/* vhci->rh_state = DUMMY_RH_SUSPENDED;
-	 * set_link_state(vhci); */
 	hcd->state = HC_STATE_SUSPENDED;
 	spin_unlock_irq(&vhci->lock);
 
@@ -995,10 +972,6 @@ static int vhci_bus_resume(struct usb_hcd *hcd)
 	if (!HCD_HW_ACCESSIBLE(hcd)) {
 		rc = -ESHUTDOWN;
 	} else {
-		/* vhci->rh_state = DUMMY_RH_RUNNING;
-		 * set_link_state(vhci);
-		 * if (!list_empty(&vhci->urbp_list))
-		 *	mod_timer(&vhci->timer, jiffies); */
 		hcd->state = HC_STATE_RUNNING;
 	}
 	spin_unlock_irq(&vhci->lock);
@@ -1175,7 +1148,6 @@ static struct platform_device the_pdev = {
 	.name = (char *) driver_name,
 	.id = -1,
 	.dev = {
-		/* .driver = &vhci_driver, */
 		.release = the_pdev_release,
 	},
 };

drivers/staging/usbip/vhci_rx.c

@@ -167,7 +167,7 @@ static void vhci_recv_ret_unlink(struct vhci_device *vdev,
 	} else {
 		usbip_dbg_vhci_rx("now giveback urb %p\n", urb);
 
-		/* If unlink is succeed, status is -ECONNRESET */
+		/* If unlink is successful, status is -ECONNRESET */
 		urb->status = pdu->u.ret_unlink.status;
 		pr_info("urb->status %d\n", urb->status);