selftests/resctrl: Remove ben_count variable

ben_count is only used to write the terminator for the list. It is
enough to use i from the loop so no need for another variable.

Remove ben_count variable as it is not needed.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: "Wieczor-Retman, Maciej" <maciej.wieczor-retman@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

tools/testing/selftests/resctrl/resctrl_tests.c

@@ -172,7 +172,7 @@ int main(int argc, char **argv)
 	bool has_ben = false, mbm_test = true, mba_test = true, cmt_test = true;
 	int c, cpu_no = 1, argc_new = argc, i, no_of_bits = 0;
 	const char *benchmark_cmd[BENCHMARK_ARGS];
-	int ben_ind, ben_count, tests = 0;
+	int ben_ind, tests = 0;
 	char *span_str = NULL;
 	bool cat_test = true;
 	int ret;
@@ -180,7 +180,6 @@ int main(int argc, char **argv)
 	for (i = 0; i < argc; i++) {
 		if (strcmp(argv[i], "-b") == 0) {
 			ben_ind = i + 1;
-			ben_count = argc - ben_ind;
 			argc_new = ben_ind - 1;
 			has_ben = true;
 			break;
@@ -265,7 +264,7 @@ int main(int argc, char **argv)
 		/* Extract benchmark command from command line. */
 		for (i = 0; i < argc - ben_ind; i++)
 			benchmark_cmd[i] = argv[i + ben_ind];
-		benchmark_cmd[ben_count] = NULL;
+		benchmark_cmd[i] = NULL;
 	} else {
 		/* If no benchmark is given by "-b" argument, use fill_buf. */
 		benchmark_cmd[0] = "fill_buf";