usb: dwc3: trace: rely on __string() and __assign_str()

Instead of going for a 512 byte buffer and using snprintf(), let's
rely on helps __string() and __assign_str() where possible.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h
index f1bd444..15909b5 100644 (file)
--- a/drivers/usb/dwc3/trace.h
+++ b/drivers/usb/dwc3/trace.h
@@ -107,7 +107,7 @@ DECLARE_EVENT_CLASS(dwc3_log_request,
        TP_PROTO(struct dwc3_request *req),
        TP_ARGS(req),
        TP_STRUCT__entry(
-               __dynamic_array(char, name, DWC3_MSG_MAX)
+               __string(name, req->dep->name)
                __field(struct dwc3_request *, req)
                __field(unsigned, actual)
                __field(unsigned, length)
@@ -117,7 +117,7 @@ DECLARE_EVENT_CLASS(dwc3_log_request,
                __field(int, no_interrupt)
        ),
        TP_fast_assign(
-               snprintf(__get_str(name), DWC3_MSG_MAX, "%s", req->dep->name);
+               __assign_str(name, req->dep->name);
                __entry->req = req;
                __entry->actual = req->request.actual;
                __entry->length = req->request.length;
@@ -190,7 +190,7 @@ DECLARE_EVENT_CLASS(dwc3_log_gadget_ep_cmd,
                struct dwc3_gadget_ep_cmd_params *params, int cmd_status),
        TP_ARGS(dep, cmd, params, cmd_status),
        TP_STRUCT__entry(
-               __dynamic_array(char, name, DWC3_MSG_MAX)
+               __string(name, dep->name)
                __field(unsigned int, cmd)
                __field(u32, param0)
                __field(u32, param1)
@@ -198,7 +198,7 @@ DECLARE_EVENT_CLASS(dwc3_log_gadget_ep_cmd,
                __field(int, cmd_status)
        ),
        TP_fast_assign(
-               snprintf(__get_str(name), DWC3_MSG_MAX, "%s", dep->name);
+               __assign_str(name, dep->name);
                __entry->cmd = cmd;
                __entry->param0 = params->param0;
                __entry->param1 = params->param1;
@@ -223,7 +223,7 @@ DECLARE_EVENT_CLASS(dwc3_log_trb,
        TP_PROTO(struct dwc3_ep *dep, struct dwc3_trb *trb),
        TP_ARGS(dep, trb),
        TP_STRUCT__entry(
-               __dynamic_array(char, name, DWC3_MSG_MAX)
+               __string(name, dep->name)
                __field(struct dwc3_trb *, trb)
                __field(u32, allocated)
                __field(u32, queued)
@@ -234,7 +234,7 @@ DECLARE_EVENT_CLASS(dwc3_log_trb,
                __field(u32, type)
        ),
        TP_fast_assign(
-               snprintf(__get_str(name), DWC3_MSG_MAX, "%s", dep->name);
+               __assign_str(name, dep->name);
                __entry->trb = trb;
                __entry->allocated = dep->allocated_requests;
                __entry->queued = dep->queued_requests;
@@ -291,7 +291,7 @@ DECLARE_EVENT_CLASS(dwc3_log_ep,
        TP_PROTO(struct dwc3_ep *dep),
        TP_ARGS(dep),
        TP_STRUCT__entry(
-               __dynamic_array(char, name, DWC3_MSG_MAX)
+               __string(name, dep->name)
                __field(unsigned, maxpacket)
                __field(unsigned, maxpacket_limit)
                __field(unsigned, max_streams)
@@ -302,7 +302,7 @@ DECLARE_EVENT_CLASS(dwc3_log_ep,
                __field(u8, trb_dequeue)
        ),
        TP_fast_assign(
-               snprintf(__get_str(name), DWC3_MSG_MAX, "%s", dep->name);
+               __assign_str(name, dep->name);
                __entry->maxpacket = dep->endpoint.maxpacket;
                __entry->maxpacket_limit = dep->endpoint.maxpacket_limit;
                __entry->max_streams = dep->endpoint.max_streams;