Add tracing showing the port status register content each time
the xhci roothub receives a Get Port Status request.
Signed-off-by: Mathias Nyman <mathias.ny...@linux.intel.com>
---
drivers/usb/host/xhci-hub.c | 1 +
drivers/usb/host/xhci-trace.h | 5 +++++
2 files changed, 6 insertions(+)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 64e1b9b..1a1856b 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1076,6 +1076,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq,
u16 wValue,
retval = -ENODEV;
break;
}
+ trace_xhci_get_port_status(wIndex, temp);
status = xhci_get_port_status(hcd, bus_state, port_array,
wIndex, temp, flags);
if (status == 0xffffffff)
diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index 67ff314..6c093db 100644
--- a/drivers/usb/host/xhci-trace.h
+++ b/drivers/usb/host/xhci-trace.h
@@ -494,6 +494,11 @@ DEFINE_EVENT(xhci_log_portsc, xhci_handle_port_status,
TP_ARGS(portnum, portsc)
);
+DEFINE_EVENT(xhci_log_portsc, xhci_get_port_status,
+ 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),
--
2.7.4
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