linux-kernel - Re: [PATCH 1/3] selftests/ftrace: multiple

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Date:   Thu, 14 Sep 2017 08:58:20 -0600
From:   Shuah Khan <shuah@...nel.org>
To:     Thomas Meyer <thomas@...3r.de>, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Shuah Khan <shuah@...nel.org>,
        Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH 1/3] selftests/ftrace: multiple_kprobes: Also check for
 support

On 09/08/2017 06:01 AM, Thomas Meyer wrote:
> The multiple_kprobes test case fails to check for KPROBE_EVENT support.
> Add the check to prevent a false test result.
> 
> Signed-off-by: Thomas Meyer <thomas@...3r.de>
> ---
>  tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
> index 2a1cb9908746..a4fd4c851a5b 100644
> --- a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
> +++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
> @@ -1,6 +1,8 @@
>  #!/bin/sh
>  # description: Register/unregister many kprobe events
>  
> +[ -f kprobe_events ] || exit_unsupported # this is configurable
> +
>  # ftrace fentry skip size depends on the machine architecture.
>  # Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le
>  case `uname -m` in
> 

Hi Steve/Masami,

This patch looks good to me. Adds a check similar to the one one in
tools/testing/selftests/ftrace/test.d/kprobe/functions

If you don't have objections, I will get this into 4.14-rc2 or rc3

thanks,
-- Shuah