xhci: add port status tracing for Get Hub Status requests

Trace the port status of each port of a roothub when
the xhci roothub receives a Get Hub Status request.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 1a1856b..46d5e08 100644 (file)
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1443,6 +1443,8 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
                        retval = -ENODEV;
                        break;
                }
+               trace_xhci_hub_status_data(i, temp);
+
                if ((temp & mask) != 0 ||
                        (bus_state->port_c_suspend & 1 << i) ||
                        (bus_state->resume_done[i] && time_after_eq(

diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index 6c093db..410544f 100644 (file)
--- a/drivers/usb/host/xhci-trace.h
+++ b/drivers/usb/host/xhci-trace.h
@@ -499,6 +499,11 @@ DEFINE_EVENT(xhci_log_portsc, xhci_get_port_status,
             TP_ARGS(portnum, portsc)
 );
 
+DEFINE_EVENT(xhci_log_portsc, xhci_hub_status_data,
+            TP_PROTO(u32 portnum, u32 portsc),
+            TP_ARGS(portnum, portsc)
+);
+
 DECLARE_EVENT_CLASS(xhci_dbc_log_request,
        TP_PROTO(struct dbc_request *req),
        TP_ARGS(req),