xhci: remove xhci_stream_id_to_ring() helper

[platform/kernel/linux-starfive.git] / drivers / usb / host / xhci-mem.c

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index c136ca0..f2c4ee7 100644 (file)
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -592,23 +592,6 @@ struct xhci_ring *xhci_dma_to_transfer_ring(
        return ep->ring;
 }
 
-struct xhci_ring *xhci_stream_id_to_ring(
-               struct xhci_virt_device *dev,
-               unsigned int ep_index,
-               unsigned int stream_id)
-{
-       struct xhci_virt_ep *ep = &dev->eps[ep_index];
-
-       if (stream_id == 0)
-               return ep->ring;
-       if (!ep->stream_info)
-               return NULL;
-
-       if (stream_id >= ep->stream_info->num_streams)
-               return NULL;
-       return ep->stream_info->stream_rings[stream_id];
-}
-
 /*
  * Change an endpoint's internal structure so it supports stream IDs.  The
  * number of requested streams includes stream 0, which cannot be used by device