usb: xhci: remove xhci_dbg_ep_rings()

xhci_dbg_ep_rings() isn't used in xhci driver anymore. Remove
it to reduce the module binary size.
Signed-off-by: NLu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: NMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-dbg.c

@@ -381,30 +381,6 @@ void xhci_debug_ring(struct xhci_hcd *xhci, struct xhci_ring *ring)
 		xhci_debug_segment(xhci, seg);
 }
 
-void xhci_dbg_ep_rings(struct xhci_hcd *xhci,
-		unsigned int slot_id, unsigned int ep_index,
-		struct xhci_virt_ep *ep)
-{
-	int i;
-	struct xhci_ring *ring;
-
-	if (ep->ep_state & EP_HAS_STREAMS) {
-		for (i = 1; i < ep->stream_info->num_streams; i++) {
-			ring = ep->stream_info->stream_rings[i];
-			xhci_dbg(xhci, "Dev %d endpoint %d stream ID %d:\n",
-				slot_id, ep_index, i);
-			xhci_debug_segment(xhci, ring->deq_seg);
-		}
-	} else {
-		ring = ep->ring;
-		if (!ring)
-			return;
-		xhci_dbg(xhci, "Dev %d endpoint ring %d:\n",
-				slot_id, ep_index);
-		xhci_debug_segment(xhci, ring->deq_seg);
-	}
-}
-
 void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
 {
 	u64 addr = erst->erst_dma_addr;

drivers/usb/host/xhci.h

@@ -1933,9 +1933,6 @@ void xhci_dbg_ring_ptrs(struct xhci_hcd *xhci, struct xhci_ring *ring);
 void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int last_ep);
 char *xhci_get_slot_state(struct xhci_hcd *xhci,
 		struct xhci_container_ctx *ctx);
-void xhci_dbg_ep_rings(struct xhci_hcd *xhci,
-		unsigned int slot_id, unsigned int ep_index,
-		struct xhci_virt_ep *ep);
 void xhci_dbg_trace(struct xhci_hcd *xhci, void (*trace)(struct va_format *),
 			const char *fmt, ...);