linux-kernel - [PATCH v7 6/6] selftests/ftrace: Add '!event' synthetic event syntax check

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Date:   Mon,  1 Feb 2021 13:48:16 -0600
From:   Tom Zanussi <zanussi@...nel.org>
To:     rostedt@...dmis.org, axelrasmussen@...gle.com
Cc:     mhiramat@...nel.org, dan.carpenter@...cle.com,
        linux-kernel@...r.kernel.org
Subject: [PATCH v7 6/6] selftests/ftrace: Add '!event' synthetic event syntax check

Add a check confirming that '!event' alone will remove a synthetic
event.

Signed-off-by: Tom Zanussi <zanussi@...nel.org>
---
 .../trigger/inter-event/trigger-synthetic-event-syntax.tc     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc
index 59216f3cfb12..2968cdc7df30 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc
@@ -32,6 +32,10 @@ grep "myevent[[:space:]]u64 var1" synthetic_events
 # it is not possible to add same name event
 ! echo "myevent u64 var2" >> synthetic_events
 
+# make sure !synthetic event doesn't require a field
+echo "!myevent" >> synthetic_events
+echo "myevent u64 var1" >> synthetic_events
+
 # Non-append open will cleanup all events and add new one
 echo "myevent u64 var2" > synthetic_events
 
-- 
2.17.1