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Subject[BUGFIX PATCH 2/3] selftests/ftrace: Fix ftrace test cases to check unsupported
Date
Since function tracer can be disabled, set_ftrace_filter can be
disappeared. The test cases must check whether the set_ftrace_filter
exists or not before testing and if not, return it as unsupported.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
.../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 2 ++
.../selftests/ftrace/test.d/ftrace/func_cpumask.tc | 5 +++++
2 files changed, 7 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
index 36fb59f886ea..1a52f2883fe0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
@@ -3,6 +3,8 @@
# description: ftrace - stacktrace filter command
# flags: instance

+[ ! -f set_ftrace_filter ] && exit_unsupported
+
echo _do_fork:stacktrace >> set_ftrace_filter

grep -q "_do_fork:stacktrace:unlimited" set_ftrace_filter
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
index 86a1f07ef2ca..7757b549f0b6 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
@@ -15,6 +15,11 @@ if [ $NP -eq 1 ] ;then
exit_unresolved
fi

+if ! grep -q function available_tracers ; then
+ echo "Function trace is not enabled"
+ exit_unsupported
+fi
+
ORIG_CPUMASK=`cat tracing_cpumask`

do_reset() {
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