usb: dwc3: gadget: introduce cancelled_list

This list will host cancelled requests who still have TRBs being
processed.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index 2aacd1afd9ff..023a473648eb 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -79,6 +79,21 @@ static inline void dwc3_gadget_move_started_request(struct dwc3_request *req)
 	list_move_tail(&req->list, &dep->started_list);
 }
 
+/**
+ * dwc3_gadget_move_cancelled_request - move @req to the cancelled_list
+ * @req: the request to be moved
+ *
+ * Caller should take care of locking. This function will move @req from its
+ * current list to the endpoint's cancelled_list.
+ */
+static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req)
+{
+	struct dwc3_ep		*dep = req->dep;
+
+	req->started = false;
+	list_move_tail(&req->list, &dep->cancelled_list);
+}
+
 void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 		int status);