linux-kernel - Re: [PATCH] selftests/ftrace: Return unsupported if no error

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Message-ID: <bfaf034d-4bbb-1ca2-1cd7-309d4df79403@linuxfoundation.org>
Date:   Thu, 28 May 2020 10:45:55 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Shuah Khan <shuah@...nel.org>,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH] selftests/ftrace: Return unsupported if no error_log file

On 5/25/20 4:20 AM, Masami Hiramatsu wrote:
> 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@...r.kernel.org
> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
> ---
>   .../ftrace/test.d/ftrace/tracing-error-log.tc      |    2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc b/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc
> index 021c03fd885d..23465823532b 100644
> --- 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
> 

Applied to

git.kernel.org/pub/scm/linux/kernel/git/shuah/linux kselftest.git/ next
branch for Linux 5.8-rc1

thanks,
-- Shuah