linux-kernel - Re: [PATCH] selftests/kcmp: exit with non-zero code in a fail case (v2)

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Date:	Fri, 13 Mar 2015 10:07:57 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	Andrey Vagin <avagin@...nvz.org>, linux-kernel@...r.kernel.org
CC:	Michael Ellerman <mpe@...erman.id.au>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH] selftests/kcmp: exit with non-zero code in a fail case
 (v2)

On 03/13/2015 09:55 AM, Andrey Vagin wrote:
> Currently this test always returs zero code and a child process returns
> non-zero code only if the last testcase failed.
> 
> v2: don't forget to return smth from ksft_exit()

Please check patch subject. It is phrased:
[PATCH v2] selftests/kcmp: exit with non-zero code in a fail case

Could you please resend. I don't want v2 ending up in the commit.

-- Shuah

> 
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Shuah Khan <shuahkh@....samsung.com>
> Cc: Cyrill Gorcunov <gorcunov@...nvz.org>
> Signed-off-by: Andrey Vagin <avagin@...nvz.org>
> ---
>  tools/testing/selftests/kcmp/kcmp_test.c | 16 ++++++++++------
>  tools/testing/selftests/kselftest.h      | 18 ++++++++++++++++++
>  2 files changed, 28 insertions(+), 6 deletions(-)
> 
> diff --git a/tools/testing/selftests/kcmp/kcmp_test.c b/tools/testing/selftests/kcmp/kcmp_test.c
> index a5a4da8..42a40c6 100644
> --- a/tools/testing/selftests/kcmp/kcmp_test.c
> +++ b/tools/testing/selftests/kcmp/kcmp_test.c
> @@ -97,13 +97,17 @@ int main(int argc, char **argv)
>  
>  		ksft_print_cnts();
>  
> -		if (ret)
> -			ksft_exit_fail();
> -		else
> -			ksft_exit_pass();
> +		return ksft_exit();
> +	}
> +
> +	status = -1;
> +	if (waitpid(pid2, &status, 0) != pid2) {
> +		perror("Unable to wait the child\n");
> +		return ksft_exit_fail();
>  	}
>  
> -	waitpid(pid2, &status, P_ALL);
> +	if (WIFEXITED(status))
> +		return WEXITSTATUS(status);
>  
> -	return ksft_exit_pass();
> +	return ksft_exit_fail();
>  }
> diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
> index 572c888..f23e56c 100644
> --- a/tools/testing/selftests/kselftest.h
> +++ b/tools/testing/selftests/kselftest.h
> @@ -59,4 +59,22 @@ static inline int ksft_exit_skip(void)
>  	exit(4);
>  }
>  
> +static inline int ksft_exit(void)
> +{
> +	/* in order of disruptiveness from bad to good */
> +	if (ksft_cnt.ksft_fail)
> +		return ksft_exit_fail();
> +	if (ksft_cnt.ksft_xpass)
> +		return ksft_exit_xpass();
> +	if (ksft_cnt.ksft_xskip)
> +		return ksft_exit_skip();
> +	if (ksft_cnt.ksft_xfail)
> +		return ksft_exit_xfail();
> +	if (ksft_cnt.ksft_pass)
> +		return ksft_exit_pass();
> +
> +	/* A test must do something */
> +	return ksft_exit_fail();
> +}
> +
>  #endif /* __KSELFTEST_H */
> 


-- 
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@....samsung.com | (970) 217-8978
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