From: Masami Hiramatsu mhiramat@kernel.org
commit 619ee76f5c9f6a1d601d1a056a454d62bf676ae4 upstream.
Check whether error_log file exists in tracing/error_log testcase and return UNSUPPORTED if no error_log file.
This can happen if we run the ftracetest on the older stable kernel.
Fixes: 4eab1cc461a6 ("selftests/ftrace: Add tracing/error_log testcase") Cc: stable@vger.kernel.org Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc | 2 ++ 1 file changed, 2 insertions(+)
--- a/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc @@ -14,6 +14,8 @@ if [ ! -f set_event ]; then exit_unsupported fi
+[ -f error_log ] || exit_unsupported + ftrace_errlog_check 'event filter parse error' '((sig >= 10 && sig < 15) || dsig ^== 17) && comm != bash' 'events/signal/signal_generate/filter'
exit 0