linux-kernel - [PATCH] selftests/ftrace: avoid failure when trying to probe a notrace function

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Message-Id: <20190708181933.10286-1-cascardo@canonical.com>
Date:   Mon,  8 Jul 2019 15:19:33 -0300
From:   Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
To:     linux-kselftest@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
Subject: [PATCH] selftests/ftrace: avoid failure when trying to probe a notrace function

Check that the function is on available_filter_functions. If it's not,
mark the test as unresolved, instead of failing it.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
---
 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
index 3fb70e01b1fe..e4dff034da12 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
@@ -26,6 +26,7 @@ test -d events/kprobes2/event2 || exit_failure
 
 FUNC=`grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
 [ "x" != "x$FUNC" ] || exit_unresolved
+grep -n "$FUNC" available_filter_functions || exit_unresolved
 echo "p $FUNC" > kprobe_events
 EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:`
 [ "x" != "x$EVENT" ] || exit_failure
-- 
2.20.1