1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 33128d52f212..105fa8b025bb 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -406,6 +406,25 @@ static void dbg_rsvd64(struct xhci_hcd *xhci, u64 *ctx, dma_addr_t dma)
         }
 }
 
+char *xhci_get_slot_state(struct xhci_hcd *xhci,
+                struct xhci_container_ctx *ctx)
+{
+        struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
+
+        switch (GET_SLOT_STATE(slot_ctx->dev_state)) {
+        case 0:
+                return "enabled/disabled";
+        case 1:
+                return "default";
+        case 2:
+                return "addressed";
+        case 3:
+                return "configured";
+        default:
+                return "reserved";
+        }
+}
+
 void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx)
 {
         /* Fields are 32 bits wide, DMA addresses are in bytes */