xhci: cleanup virtual endoint structure, remove stopped_stream

Get rid of stopped_stream member in virtual endpoint structure as
it is only used in one case when cleaning a halted endpoint.

Pass it as function parameter instead.

No functional changes
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-ring.c

@@ -1832,11 +1832,8 @@ static void xhci_cleanup_halted_endpoint(struct xhci_hcd *xhci,
 
 	xhci_queue_reset_ep(xhci, command, slot_id, ep_index, reset_type);
 
-	if (reset_type == EP_HARD_RESET) {
-		ep->stopped_stream = stream_id;
-		xhci_cleanup_stalled_ring(xhci, ep_index, td);
-		ep->stopped_stream = 0;
-	}
+	if (reset_type == EP_HARD_RESET)
+		xhci_cleanup_stalled_ring(xhci, ep_index, stream_id, td);
 
 	xhci_ring_cmd_db(xhci);
 }

drivers/usb/host/xhci.c

@@ -2822,8 +2822,8 @@ static void xhci_setup_input_ctx_for_quirk(struct xhci_hcd *xhci,
 			added_ctxs, added_ctxs);
 }
 
-void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci,
-			unsigned int ep_index, struct xhci_td *td)
+void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, unsigned int ep_index,
+			       unsigned int stream_id, struct xhci_td *td)
 {
 	struct xhci_dequeue_state deq_state;
 	struct xhci_virt_ep *ep;
@@ -2836,7 +2836,7 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci,
 	 * or it will attempt to resend it on the next doorbell ring.
 	 */
 	xhci_find_new_dequeue_state(xhci, udev->slot_id,
-			ep_index, ep->stopped_stream, td, &deq_state);
+			ep_index, stream_id, td, &deq_state);
 
 	if (!deq_state.new_deq_ptr || !deq_state.new_deq_seg)
 		return;

drivers/usb/host/xhci.h

@@ -924,7 +924,6 @@ struct xhci_virt_ep {
 #define EP_GETTING_NO_STREAMS	(1 << 5)
 	/* ----  Related to URB cancellation ---- */
 	struct list_head	cancelled_td_list;
-	unsigned int		stopped_stream;
 	/* Watchdog timer for stop endpoint command to cancel URBs */
 	struct timer_list	stop_cmd_timer;
 	struct xhci_hcd		*xhci;
@@ -2056,8 +2055,8 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
 void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
 		unsigned int slot_id, unsigned int ep_index,
 		struct xhci_dequeue_state *deq_state);
-void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci,
-		unsigned int ep_index, struct xhci_td *td);
+void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, unsigned int ep_index,
+		unsigned int stream_id, struct xhci_td *td);
 void xhci_stop_endpoint_command_watchdog(unsigned long arg);
 void xhci_handle_command_timeout(struct work_struct *work);