perf ftrace: Add change log

Add a change log after previous enhancements.

Signed-off-by: Changbin Du <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt (VMware) <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 9da38dc8b5423b08488435497a1b8ba74f404a86..167f1f57aba3084fe8735e2ed8bed125cea90509 100644 (file)
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -3,6 +3,7 @@
  * builtin-ftrace.c
  *
  * Copyright (c) 2013  LG Electronics,  Namhyung Kim <[email protected]>
+ * Copyright (c) 2020  Changbin Du <[email protected]>, significant enhancement.
  */
 
 #include "builtin.h"