On 05/26/2018 11:01 AM, Jeffrin Jose T wrote:
> The intel_pstate related testing script need root level privileges
> when trying to access certain file for the successful execution of
> the script.But this is not the case always like when using evaluation
> only mode, which only require user level privilege.
> 
> This patch is to notify the user about the privilege the script
> demands for the successful execution of the test.
> 
> Signed-off-by: Jeffrin Jose T (Rajagiri SET) <[email protected]>
> ---
>  tools/testing/selftests/intel_pstate/run.sh | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/tools/testing/selftests/intel_pstate/run.sh 
> b/tools/testing/selftests/intel_pstate/run.sh
> index 6ded61670f6d..4ddd389c2cb9 100755
> --- a/tools/testing/selftests/intel_pstate/run.sh
> +++ b/tools/testing/selftests/intel_pstate/run.sh
> @@ -33,6 +33,12 @@ EVALUATE_ONLY=0
>  # Kselftest framework requirement - SKIP code is 4.
>  ksft_skip=4
>  
> +msg="skip all tests:"
> +if [ $UID != 0 ] && [ $EVALUATE_ONLY == 0 ]; then
> +    echo $msg please run this as root >&2
> +    exit $ksft_skip
> +fi
> +
>  if ! uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ | grep -q x86; then
>       echo "$0 # Skipped: Test can only run on x86 architectures."
>       exit $ksft_skip
> 

Why not do the arch check first and then do the root check? The order of
arch followed by root on non-x86 arch definitely better than root first
check.

thanks,
-- Shuah

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