[PATCH 06/13] usb: chipidea: tracing: Use the new __vstring() helper

[Steven Rostedt]

From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>

Instead of open coding a __dynamic_array() with a fixed length (which
defeats the purpose of the dynamic array in the first place). Use the new
__vstring() helper that will use a va_list and only write enough of the
string into the ring buffer that is needed.

Cc: Peter Chen <peter.chen@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
 drivers/usb/chipidea/trace.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/chipidea/trace.h b/drivers/usb/chipidea/trace.h
index 1601fd86c4c1..ca0e65b48f0a 100644
--- a/drivers/usb/chipidea/trace.h
+++ b/drivers/usb/chipidea/trace.h
@@ -28,11 +28,11 @@ TRACE_EVENT(ci_log,
 	TP_ARGS(ci, vaf),
 	TP_STRUCT__entry(
 		__string(name, dev_name(ci->dev))
-		__dynamic_array(char, msg, CHIPIDEA_MSG_MAX)
+		__vstring(msg, vaf->fmt, vaf->va)
 	),
 	TP_fast_assign(
 		__assign_str(name, dev_name(ci->dev));
-		vsnprintf(__get_str(msg), CHIPIDEA_MSG_MAX, vaf->fmt, *vaf->va);
+		__assign_vstr(msg, vaf->fmt, vaf->va);
 	),
 	TP_printk("%s: %s", __get_str(name), __get_str(msg))
 );
-- 
2.35.1