selftests/resctrl: Don't pass test name to fill_buf

Test name is passed to fill_buf functions so that they can loop around
buffer only once. This is required for CAT test case.

To loop around buffer only once, caller doesn't need to let fill_buf
know which test case it is. Instead, pass a boolean argument 'once'
which makes fill_buf more generic.

As run_benchmark() no longer needs to pass the test name to
run_fill_buf(), a few test running functions can be simplified to not
write the test name into the default benchmark_cmd. The has_ben
argument can also be removed now from those test running functions.

Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Shaopeng Tan (Fujitsu) <tan.shaopeng@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

1 files changed, 5 insertions, 9 deletions

diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index 125ed0ca11e3..d511daeb6851 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -70,7 +70,7 @@ void tests_cleanup(void)
 	cat_test_cleanup();
 }
 
-static void run_mbm_test(bool has_ben, char **benchmark_cmd, size_t span,
+static void run_mbm_test(char **benchmark_cmd, size_t span,
 			 int cpu_no, char *bw_report)
 {
 	int res;
@@ -88,8 +88,6 @@ static void run_mbm_test(bool has_ben, char **benchmark_cmd, size_t span,
 		goto umount;
 	}
 
-	if (!has_ben)
-		sprintf(benchmark_cmd[4], "%s", MBA_STR);
 	res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd);
 	ksft_test_result(!res, "MBM: bw change\n");
 	if ((get_vendor() == ARCH_INTEL) && res)
@@ -123,7 +121,7 @@ umount:
 	umount_resctrlfs();
 }
 
-static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no)
+static void run_cmt_test(char **benchmark_cmd, int cpu_no)
 {
 	int res;
 
@@ -140,8 +138,6 @@ static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no)
 		goto umount;
 	}
 
-	if (!has_ben)
-		sprintf(benchmark_cmd[4], "%s", CMT_STR);
 	res = cmt_resctrl_val(cpu_no, 5, benchmark_cmd);
 	ksft_test_result(!res, "CMT: test\n");
 	if ((get_vendor() == ARCH_INTEL) && res)
@@ -274,7 +270,7 @@ int main(int argc, char **argv)
 		sprintf(benchmark_cmd[1], "%zu", span);
 		strcpy(benchmark_cmd[2], "1");
 		strcpy(benchmark_cmd[3], "0");
-		strcpy(benchmark_cmd[4], "");
+		strcpy(benchmark_cmd[4], "false");
 		benchmark_cmd[5] = NULL;
 	}
 
@@ -292,13 +288,13 @@ int main(int argc, char **argv)
 	ksft_set_plan(tests ? : 4);
 
 	if (mbm_test)
-		run_mbm_test(has_ben, benchmark_cmd, span, cpu_no, bw_report);
+		run_mbm_test(benchmark_cmd, span, cpu_no, bw_report);
 
 	if (mba_test)
 		run_mba_test(benchmark_cmd, cpu_no, bw_report);
 
 	if (cmt_test)
-		run_cmt_test(has_ben, benchmark_cmd, cpu_no);
+		run_cmt_test(benchmark_cmd, cpu_no);
 
 	if (cat_test)
 		run_cat_test(cpu_no, no_of_bits);