2 files changed, 10 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index 697c77ef2e2b..5100eb1ada0f 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -113,6 +113,15 @@ initialize_ftrace() { # Reset ftrace to initial-state
     enable_tracing
 }
 
+check_requires() { # Check required files
+    for i in $* ; do
+        if [ ! -e $i ]; then
+            echo "Required feature interface $i doesn't exist."
+            exit_unsupported
+        fi
+    done
+}
+
 LOCALHOST=127.0.0.1
 
 yield() {
diff --git a/tools/testing/selftests/ftrace/test.d/template b/tools/testing/selftests/ftrace/test.d/template
index e1a5d14c4eaf..611423c4e75f 100644
--- a/tools/testing/selftests/ftrace/test.d/template
+++ b/tools/testing/selftests/ftrace/test.d/template
@@ -1,6 +1,7 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 # description: %HERE DESCRIBE WHAT THIS DOES%
+# requires: %HERE LIST THE REQUIRED FILES%
 # you have to add ".tc" extention for your testcase file
 # Note that all tests are run with "errexit" option.