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-rw-r--r--tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc6
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
index 9cf385297c1a..7a9ab4ff83b6 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
@@ -103,11 +103,11 @@ if [ $on != "0" ]; then
fail "Tracing is not off"
fi
-line1=`cat trace | tail -1`
+csum1=`md5sum trace`
sleep $SLEEP_TIME
-line2=`cat trace | tail -1`
+csum2=`md5sum trace`
-if [ "$line1" != "$line2" ]; then
+if [ "$csum1" != "$csum2" ]; then
fail "Tracing file is still changing"
fi