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Message-ID: <20230717082411.147abfa6@gandalf.local.home>
Date:   Mon, 17 Jul 2023 08:24:10 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Ajay Kaher <akaher@...are.com>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        "shuah@...nel.org" <shuah@...nel.org>,
        Ching-lin Yu <chinglinyu@...gle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "linux-trace-kernel@...r.kernel.org" 
        <linux-trace-kernel@...r.kernel.org>,
        kernel test robot <lkp@...el.com>,
        Nadav Amit <namit@...are.com>,
        "oe-lkp@...ts.linux.dev" <oe-lkp@...ts.linux.dev>,
        Alexey Makhalov <amakhalov@...are.com>,
        "er.ajay.kaher@...il.com" <er.ajay.kaher@...il.com>,
        "srivatsa@...il.mit.edu" <srivatsa@...il.mit.edu>,
        Tapas Kundu <tkundu@...are.com>,
        Vasavi Sirnapalli <vsirnapalli@...are.com>
Subject: Re: [PATCH v4 10/10] test: ftrace: Fix kprobe test for eventfs

On Mon, 17 Jul 2023 05:24:43 +0000
Ajay Kaher <akaher@...are.com> wrote:

> >> As this patch as is will break when running on older kernels, I was
> >> wondering if we should do this instead?  
> > 
> > +1 since the latest kselftest is used also for checking the older
> > stable kernels, the test case has to check the environment and
> > change the parameter (or make it unsupported for new feature)
> > So below looks good to me.  
> 
> +1, many ftrace tests are unsupported in my setup and may few require
> changes, not sure. Does any auto job takes care of this?

You mean like some kernel CI? Not that I know of.

Shuah, do you run these selftests on older kernels to make sure they don't
fail just because the test is unsupported?

-- Steve

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