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Date:   Fri, 18 Mar 2022 13:58:53 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Shaopeng Tan <tan.shaopeng@...fujitsu.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Shuah Khan <shuah@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
        "Shuah Khan" <skhan@...uxfoundation.org>
Subject: Re: [PATCH v6 3/6] selftests/resctrl: Fix resctrl_tests' return code
 to work with selftest framework

Hi Shaopeng Tan,

On 3/18/2022 12:58 AM, Shaopeng Tan wrote:
> In kselftest framework, if a sub test can not run by some reasons,
> the test result should be marked as SKIP rather than FAIL.
> Return KSFT_SKIP(4) instead of KSFT_FAIL(1) if resctrl_tests is not run
> as root or it is run on a test environment which does not support resctrl.
> 
>  - ksft_exit_fail_msg(): returns KSFT_FAIL(1)
>  - ksft_exit_skip(): returns KSFT_SKIP(4)
> 
> Reviewed-by: Shuah Khan <skhan@...uxfoundation.org>
> Signed-off-by: Shaopeng Tan <tan.shaopeng@...fujitsu.com>
> ---
>  tools/testing/selftests/resctrl/resctrl_tests.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
> index 973f09a66e1e..ed7e1a995b01 100644
> --- a/tools/testing/selftests/resctrl/resctrl_tests.c
> +++ b/tools/testing/selftests/resctrl/resctrl_tests.c
> @@ -205,7 +205,7 @@ int main(int argc, char **argv)
>  	 * 2. We execute perf commands
>  	 */
>  	if (geteuid() != 0)
> -		return ksft_exit_fail_msg("Not running as root, abort testing.\n");
> +		return ksft_exit_skip("Not running as root. Skipping...\n");
>  
>  	/* Detect AMD vendor */
>  	detect_amd();
> @@ -235,7 +235,7 @@ int main(int argc, char **argv)
>  	sprintf(bm_type, "fill_buf");
>  
>  	if (!check_resctrlfs_support())
> -		return ksft_exit_fail_msg("resctrl FS does not exist\n");
> +		return ksft_exit_skip("resctrl FS does not exist. Enable X86_CPU_RESCTRL config options.\n");
>  
>  	filter_dmesg();
>  

Almost.

"config options" -> "config option"

With that fixed you can add:
Reviewed-by: Reinette Chatre <reinette.chatre@...el.com>

Reinette

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