Hi Ilpo,

On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
...
> diff --git a/tools/testing/selftests/resctrl/resctrl.h 
> b/tools/testing/selftests/resctrl/resctrl.h
> index ec6efd36f60a..e017adf1390d 100644
> --- a/tools/testing/selftests/resctrl/resctrl.h
> +++ b/tools/testing/selftests/resctrl/resctrl.h
> @@ -37,6 +37,8 @@
>  
>  #define DEFAULT_SPAN         (250 * MB)
>  
> +#define ARRAY_SIZE(arr)              (sizeof(arr) / sizeof((arr)[0]))
> +

Shuah worked hard to remove all these copies within kselftest. Please
use the one in kselftest.h instead.

>  #define PARENT_EXIT(err_msg)                 \
>       do {                                    \
>               perror(err_msg);                \


...

> @@ -233,25 +183,26 @@ int main(int argc, char **argv)
>               case 't':
>                       token = strtok(optarg, ",");
>  
> -                     mbm_test = false;
> -                     mba_test = false;
> -                     cmt_test = false;
> -                     cat_test = false;
> +                     if (!test_param_seen) {
> +                             for (i = 0; i < ARRAY_SIZE(resctrl_tests); i++)
> +                                     resctrl_tests[i]->disabled = true;
> +                             tests = 0;
> +                             test_param_seen = true;
> +                     }
>                       while (token) {
> -                             if (!strncmp(token, MBM_STR, sizeof(MBM_STR))) {
> -                                     mbm_test = true;
> -                                     tests++;
> -                             } else if (!strncmp(token, MBA_STR, 
> sizeof(MBA_STR))) {
> -                                     mba_test = true;
> -                                     tests++;
> -                             } else if (!strncmp(token, CMT_STR, 
> sizeof(CMT_STR))) {
> -                                     cmt_test = true;
> -                                     tests++;
> -                             } else if (!strncmp(token, CAT_STR, 
> sizeof(CAT_STR))) {
> -                                     cat_test = true;
> -                                     tests++;
> -                             } else {
> -                                     printf("invalid argument\n");
> +                             bool found = false;
> +
> +                             for (i = 0; i < ARRAY_SIZE(resctrl_tests); i++) 
> {
> +                                     if (!strcasecmp(token, 
> resctrl_tests[i]->name)) {
> +                                             if (resctrl_tests[i]->disabled)
> +                                                     tests++;
> +                                             resctrl_tests[i]->disabled = 
> false;
> +                                             found = true;
> +                                     }
> +                             }

Could providing multiple "-t" result in the test count not
matching the number of tests run?

> +
> +                             if (!found) {
> +                                     printf("invalid test: %s\n", token);
>  
>                                       return -1;
>                               }

A great improvement, thanks.

Reinette

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