linux-kernel - Re: [PATCH AUTOSEL 4.14 17/19] selftests: ftrace: Add synthetic event syntax testcase

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Message-ID: <20181030182112.GB194472@sasha-vm>
Date:   Tue, 30 Oct 2018 14:21:12 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     stable@...r.kernel.org, linux-kernel@...r.kernel.org,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: Re: [PATCH AUTOSEL 4.14 17/19] selftests: ftrace: Add synthetic
 event syntax testcase

On Tue, Oct 30, 2018 at 10:58:15AM -0400, Steven Rostedt wrote:
>On Tue, 30 Oct 2018 09:28:22 -0400
>Sasha Levin <sashal@...nel.org> wrote:
>
>> From: Masami Hiramatsu <mhiramat@...nel.org>
>>
>> [ Upstream commit ba0e41ca81b935b958006c7120466e2217357827 ]
>>
>> Add a testcase to check the syntax and field types for
>> synthetic_events interface.
>>
>> Link: http://lkml.kernel.org/r/153986838264.18251.16627517536956299922.stgit@devbox
>>
>> Acked-by: Shuah Khan <shuah@...nel.org>
>> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
>> Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>
>Why are you adding selftests for old kernels to test a feature that
>wasn't added until 4.17?

We backport all selftest patches to stable to keep selftest on stable
kernels as similar as possible to upstream.

--
Thanks,
Sasha