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-rw-r--r--tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc9
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
index 0bb5df3c00d4..cc1cf4d30ef5 100644
--- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -1,4 +1,5 @@
#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
# description: event tracing - enable/disable with top level files
do_reset() {
@@ -28,7 +29,9 @@ echo '*:*' > set_event
yield
-count=`cat trace | grep -v ^# | wc -l`
+echo 0 > tracing_on
+
+count=`head -n 128 trace | grep -v ^# | wc -l`
if [ $count -eq 0 ]; then
fail "none of events are recorded"
fi
@@ -36,10 +39,12 @@ fi
do_reset
echo 1 > events/enable
+echo 1 > tracing_on
yield
-count=`cat trace | grep -v ^# | wc -l`
+echo 0 > tracing_on
+count=`head -n 128 trace | grep -v ^# | wc -l`
if [ $count -eq 0 ]; then
fail "none of events are recorded"
fi