linux-kernel - Re: [PATCH] selftests/ftrace: Fix test to handle both old and new kernels

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Message-ID: <f377d9c2-9bad-418e-b02a-9ef4f45d7b06@linuxfoundation.org>
Date: Wed, 21 Aug 2024 00:58:14 -0600
From: Shuah Khan <skhan@...uxfoundation.org>
To: Steven Rostedt <rostedt@...dmis.org>, LKML
 <linux-kernel@...r.kernel.org>,
 Linux trace kernel <linux-trace-kernel@...r.kernel.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Ingo Molnar <mingo@...nel.org>, Shuah Khan <shuahkhan@...il.com>,
 Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org,
 Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH] selftests/ftrace: Fix test to handle both old and new
 kernels

On 8/19/24 13:20, Steven Rostedt wrote:
> On Fri, 14 Jun 2024 12:43:22 -0400
> Steven Rostedt <rostedt@...dmis.org> wrote:
> 
>> Shuah,
>>
>> Can you take this through your tree?
> 
> Ping.
> 
> -- Steve
> 
>>
>> Thanks,
>>
>> -- Steve
>>
>>
>> On Wed, 15 May 2024 01:36:20 -0400
>> Steven Rostedt <rostedt@...dmis.org> wrote:
>>
>>> From: "Steven Rostedt (Google)" <rostedt@...dmis.org>
>>>
>>> The function "scheduler_tick" was renamed to "sched_tick" and a selftest
>>> that used that function for testing function trace filtering used that
>>> function as part of the test.
>>>
>>> But the change causes it to fail when run on older kernels. As tests
>>> should not fail on older kernels, add a check to see which name is
>>> available before testing.
>>>
>>> Fixes: 86dd6c04ef9f2 ("sched/balancing: Rename scheduler_tick() => sched_tick()")
>>> Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>


Sorry about the delay.

It is now applied to liniux-kselftest next for Linux 6.12-rc1.

thanks,
-- Shuah