linux-kernel - [PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

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Message-Id: <147685282642.8760.554191165644931816.stgit@devbox>
Date:   Wed, 19 Oct 2016 13:53:46 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        linux-kselftest@...r.kernel.org
Subject: [PATCH 2/5] selftests: ftrace: Fix test cases to enable tracing

Fix some test cases to enable tracing before starting
trace test. This can avoid false-positive failure when
previous testcase fails while disabling tracing.

Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
---
 .../selftests/ftrace/test.d/event/event-enable.tc  |    1 +
 .../selftests/ftrace/test.d/event/event-pid.tc     |    1 +
 .../ftrace/test.d/event/subsystem-enable.tc        |    1 +
 .../ftrace/test.d/event/toplevel-enable.tc         |    1 +
 .../ftrace/test.d/ftrace/func_profiler.tc          |    1 +
 .../ftrace/test.d/kprobe/kprobe_ftrace.tc          |    1 +
 6 files changed, 6 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
index 87eb9d6..ee7ea0a 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 'sched:sched_switch' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
index d4ab27b..1477e5e 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
@@ -30,6 +30,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 1 > events/sched/sched_switch/enable
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
index ced27ef..f4a64f9 100644
--- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo 'sched:*' > set_event
 
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 0bb5df3..037a82e 100644
--- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -23,6 +23,7 @@ fi
 
 reset_tracer
 do_reset
+enable_tracing
 
 echo '*:*' > set_event
 
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index 7808336..d10d6e0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -36,6 +36,7 @@ fail() { # mesg
 
 echo "Testing function tracer with profiler:"
 echo "enable function tracer"
+enable_tracing
 echo function > current_tracer
 echo "enable profiler"
 echo 1 > function_profile_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
index d6f2f49..bdbd385 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
@@ -10,6 +10,7 @@ echo _do_fork > set_ftrace_filter
 echo 0 > events/enable
 echo > kprobe_events
 echo 'p:testprobe _do_fork' > kprobe_events
+enable_tracing
 
 # kprobe on / ftrace off
 echo 1 > events/kprobes/testprobe/enable