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

[Steven Rostedt]

On Tue, 30 Oct 2018 09:28:22 -0400
Sasha Levin <sashal@xxxxxxxxxx> wrote:

> From: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> 
> [ 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@xxxxxxxxxx>
> Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

Why are you adding selftests for old kernels to test a feature that
wasn't added until 4.17?

-- Steve