Convert the required tracefs interface checking code with[ SNIP ]
requires: list.
Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc
index c80007aa9f86..59f876c80d45 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc
@@ -1,17 +1,13 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test inter-event histogram trigger onchange action
+# requires: synthetic_events