---

yaml
---
r: 254156
b: refs/heads/master
c: f6ba6fe
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e1cf486d881d853d710e2d86a7adfc5fd260990f
+refs/heads/master: f6ba6fe2d913da6707a71a413d6ec8ae98d6ce18

trunk/drivers/usb/host/xhci-ring.c

@@ -1733,6 +1733,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
 		frame->status = -EOVERFLOW;
 		skip_td = true;
 		break;
+	case COMP_DEV_ERR:
 	case COMP_STALL:
 		frame->status = -EPROTO;
 		skip_td = true;
@@ -2016,6 +2017,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 				 TRB_TO_SLOT_ID(le32_to_cpu(event->flags)),
 				 ep_index);
 		goto cleanup;
+	case COMP_DEV_ERR:
+		xhci_warn(xhci, "WARN: detect an incompatible device");
+		status = -EPROTO;
+		break;
 	case COMP_MISSED_INT:
 		/*
 		 * When encounter missed service error, one or more isoc tds

trunk/drivers/usb/host/xhci.c

@@ -1551,6 +1551,11 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci,
 				"and endpoint is not disabled.\n");
 		ret = -EINVAL;
 		break;
+	case COMP_DEV_ERR:
+		dev_warn(&udev->dev, "ERROR: Incompatible device for endpoint "
+				"configure command.\n");
+		ret = -ENODEV;
+		break;
 	case COMP_SUCCESS:
 		dev_dbg(&udev->dev, "Successful Endpoint Configure command\n");
 		ret = 0;
@@ -1585,6 +1590,11 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci,
 		xhci_dbg_ctx(xhci, virt_dev->out_ctx, 1);
 		ret = -EINVAL;
 		break;
+	case COMP_DEV_ERR:
+		dev_warn(&udev->dev, "ERROR: Incompatible device for evaluate "
+				"context command.\n");
+		ret = -ENODEV;
+		break;
 	case COMP_MEL_ERR:
 		/* Max Exit Latency too large error */
 		dev_warn(&udev->dev, "WARN: Max Exit Latency too large\n");
@@ -2867,6 +2877,11 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
 		dev_warn(&udev->dev, "Device not responding to set address.\n");
 		ret = -EPROTO;
 		break;
+	case COMP_DEV_ERR:
+		dev_warn(&udev->dev, "ERROR: Incompatible device for address "
+				"device command.\n");
+		ret = -ENODEV;
+		break;
 	case COMP_SUCCESS:
 		xhci_dbg(xhci, "Successful Address Device command\n");
 		break;

trunk/drivers/usb/host/xhci.h

@@ -874,6 +874,8 @@ struct xhci_transfer_event {
 #define COMP_PING_ERR	20
 /* Event Ring is full */
 #define COMP_ER_FULL	21
+/* Incompatible Device Error */
+#define COMP_DEV_ERR	22
 /* Missed Service Error - HC couldn't service an isoc ep within interval */
 #define COMP_MISSED_INT	23
 /* Successfully stopped command ring */