diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 467bedeb542a..8d28f120ec0a 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1885,6 +1885,7 @@ void usb_hcd_flush_endpoint(struct usb_device *udev,
 	might_sleep();
 	hcd = bus_to_hcd(udev->bus);
 
+	pr_err("sudip: %s\n", __func__);
 	/* No more submits can occur */
 	spin_lock_irq(&hcd_urb_list_lock);
 rescan:
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 6996235e34a9..4f80791fdfc5 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1450,6 +1450,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	case TRB_STOP_RING:
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
 				le32_to_cpu(cmd_trb->generic.field[3])));
+		pr_err("sudip: %s cmd=%p\n", __func__, cmd);
 		xhci_handle_cmd_stop_ep(xhci, slot_id, cmd_trb, event);
 		break;
 	case TRB_SET_DEQ:
@@ -4009,6 +4010,7 @@ int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, struct xhci_command *cmd,
 	u32 type = TRB_TYPE(TRB_STOP_RING);
 	u32 trb_suspend = SUSPEND_PORT_FOR_TRB(suspend);
 
+	pr_err("sudip: %s cmd=%p\n", __func__, cmd);
 	return queue_command(xhci, cmd, 0, 0, 0,
 			trb_slot_id | trb_ep_index | type | trb_suspend, false);
 }
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index db1de6113db2..3832128107ff 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1516,6 +1516,7 @@ static int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 		ep->stop_cmd_timer.expires = jiffies +
 			XHCI_STOP_EP_CMD_TIMEOUT * HZ;
 		add_timer(&ep->stop_cmd_timer);
+		pr_err("sudip: %s\n", __func__);
 		xhci_queue_stop_endpoint(xhci, command, urb->dev->slot_id,
 					 ep_index, 0);
 		xhci_ring_cmd_db(xhci);