linux-kernel - [PATCH 2/3] tracing/kselftests: Remove triggers with references before their definitions

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Message-Id: <20211027205919.1648553-3-kaleshsingh@google.com>
Date:   Wed, 27 Oct 2021 13:59:09 -0700
From:   Kalesh Singh <kaleshsingh@...gle.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     surenb@...gle.com, hridya@...gle.com, namhyung@...nel.org,
        kernel-team@...roid.com, rostedt@...dmis.org, mhiramat@...nel.org,
        Kalesh Singh <kaleshsingh@...gle.com>,
        Ingo Molnar <mingo@...hat.com>, Shuah Khan <shuah@...nel.org>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH 2/3] tracing/kselftests: Remove triggers with references
 before their definitions

If an event trigger references a variable defined in another trigger, it
has to be removed before the trigger that defines the variable is
removed.

Signed-off-by: Kalesh Singh <kaleshsingh@...gle.com>
---
 tools/testing/selftests/ftrace/test.d/functions | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index 000fd05e84b1..bd9e85f4d626 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -22,6 +22,15 @@ reset_trigger_file() {
 	file=`echo $line | cut -f1 -d:`
 	echo "!$cmd" >> $file
     done
+
+    # remove triggers with references next
+    grep -H '\$' $@ |
+    while read line; do
+        cmd=`echo $line | cut -f2- -d: | cut -f1 -d"["`
+	file=`echo $line | cut -f1 -d:`
+	echo "!$cmd" >> $file
+    done
+
     grep -Hv ^# $@ |
     while read line; do
         cmd=`echo $line | cut -f2- -d: | cut -f1 -d"["`
-- 
2.33.0.1079.g6e70778dc9-goog