linux-kernel - Re: [PATCH v3 2/2] selftests: clone3: simplify return logic in clone3_set

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Message-ID: <CADYN=9+drOj6rVjBhB-jVQ+UXgw3ue0tz04ejHih7qRhL6Km1A@mail.gmail.com>
Date:   Thu, 18 Nov 2021 11:03:25 +0100
From:   Anders Roxell <anders.roxell@...aro.org>
To:     shuah@...nel.org
Cc:     fenghua.yu@...el.com, reinette.chatre@...el.com,
        john.stultz@...aro.org, tglx@...utronix.de,
        akpm@...ux-foundation.org, nathan@...nel.org,
        ndesaulniers@...gle.com, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-mm@...ck.org,
        llvm@...ts.linux.dev, christian@...uner.io
Subject: Re: [PATCH v3 2/2] selftests: clone3: simplify return logic in clone3_set_tid()

On Thu, 18 Nov 2021 at 10:58, Anders Roxell <anders.roxell@...aro.org> wrote:
>
> Use ksft_exit_* and exit instead of using goto.
>

I'm sorry, I should have added Nick to this patch, since he suggested it.

Suggested-by: Nick Desaulniers <ndesaulniers@...gle.com>

Cheers,
Anders

> Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
> ---
>  tools/testing/selftests/clone3/clone3_set_tid.c | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
>
> diff --git a/tools/testing/selftests/clone3/clone3_set_tid.c b/tools/testing/selftests/clone3/clone3_set_tid.c
> index a755fcd3af89..1b950c3c3b7c 100644
> --- a/tools/testing/selftests/clone3/clone3_set_tid.c
> +++ b/tools/testing/selftests/clone3/clone3_set_tid.c
> @@ -250,7 +250,8 @@ int main(int argc, char *argv[])
>                  * that all those tests are skipped as non-root.
>                  */
>                 ksft_cnt.ksft_xskip += ksft_plan - ksft_test_num();
> -               goto out;
> +               ksft_exit_skip(
> +                       "Please run the remaining tests as root - Exiting.\n");
>         }
>
>         /* Find the current active PID */
> @@ -371,9 +372,7 @@ int main(int argc, char *argv[])
>         close(pipe_2[1]);
>
>         if (waitpid(ns_pid, &status, 0) < 0) {
> -               ksft_print_msg("Child returned %s\n", strerror(errno));
> -               ret = -errno;
> -               goto out;
> +               ksft_exit_fail_msg("Child returned %s\n", strerror(errno));
>         }
>
>         if (!WIFEXITED(status))
> @@ -390,10 +389,6 @@ int main(int argc, char *argv[])
>                 ksft_test_result_fail(
>                         "PIDs in all namespaces not as expected (%d,%d,%d)\n",
>                         ns3, ns2, ns1);
> -out:
> -       ret = 0;
>
> -       if (ret)
> -               ksft_exit_fail();
>         ksft_exit_pass();
>  }
> --
> 2.33.0
>