linux-kernel - Re: [PATCH 2/2] selftests/tracing: Fix to check the required syscall event

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Date: Sat, 1 Jun 2024 00:00:47 +0900
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
To: Shuah Khan <skhan@...uxfoundation.org>
Cc: Steven Rostedt <rostedt@...dmis.org>, Shuah Khan <shuah@...nel.org>,
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
 linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 2/2] selftests/tracing: Fix to check the required
 syscall event

On Fri, 31 May 2024 08:41:00 -0600
Shuah Khan <skhan@...uxfoundation.org> wrote:

> On 5/31/24 03:43, Masami Hiramatsu (Google) wrote:
> > From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
> > 
> > Since test_duplicates.tc depends on syscalls/sys_enter_openat event,
> > it must add the event file to `requires`.
> > Without this fix, the test fails if CONFIG_FTRACE_SYSCALLS=n.
> > 
> > Fixes: 297e1dcdca3d ("selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes")
> > Signed-off-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>
> > ---
> >   .../ftrace/test.d/dynevent/test_duplicates.tc      |    2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
> > index d3a79da215c8..5f72abe6fa79 100644
> > --- a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
> > +++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
> > @@ -1,7 +1,7 @@
> >   #!/bin/sh
> >   # SPDX-License-Identifier: GPL-2.0
> >   # description: Generic dynamic event - check if duplicate events are caught
> > -# requires: dynamic_events "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README
> > +# requires: dynamic_events "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README events/syscalls/sys_enter_openat
> >   
> >   echo 0 > events/enable
> >   
> > 
> > 
> 
> This change is already in mainline. I sent the fix up in my 6.10-rc1 pr?

Oops, sorry, I forgot to pick it to my working branch...

Thanks!

> The short log is a slightly different:
> 
> commit f6c3c83db1d939ebdb8c8922748ae647d8126d91
> Author: Masami Hiramatsu (Google) <mhiramat@...nel.org>
> Date:   Tue May 21 09:00:22 2024 +0900
> 
>      selftests/ftrace: Fix to check required event file
>      
>      The dynevent/test_duplicates.tc test case uses `syscalls/sys_enter_openat`
>      event for defining eprobe on it. Since this `syscalls` events depend on
>      CONFIG_FTRACE_SYSCALLS=y, if it is not set, the test will fail.
>      
>      Add the event file to `required` line so that the test will return
>      `unsupported` result.
>      
>      Fixes: 297e1dcdca3d ("selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes")
>      Signed-off-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>
>      Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
> 
> thanks,
> -- Shuah


-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>