From: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Date: Mon, 17 Jul 2023 13:15:05 +0000 (+0300)
Subject: selftests/resctrl: Move CAT/CMT test global vars to function they are used in
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=85b73447a44cd215815464a0981604e177384192;p=linux.git

selftests/resctrl: Move CAT/CMT test global vars to function they are used in

CAT and CMT tests have count_of_bits, long_mask, cbm_mask, and
cache_size global variables that can be moved into the sole using
function.

Make the global variables local variables of the relevant function to
scope them better.

While at it, move cache_size initialization into the declaration line.

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>
---

diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index 42e35269d8b67..ed6c8e64ad116 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -17,11 +17,6 @@
 #define MAX_DIFF_PERCENT	4
 #define MAX_DIFF		1000000
 
-static int count_of_bits;
-static char cbm_mask[256];
-static unsigned long long_mask;
-static unsigned long cache_size;
-
 /*
  * Change schemata. Write schemata to specified
  * con_mon grp, mon_grp in resctrl FS.
@@ -96,10 +91,12 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type)
 {
 	unsigned long l_mask, l_mask_1;
 	int ret, pipefd[2], sibling_cpu_no;
+	unsigned long cache_size = 0;
+	unsigned long long_mask;
+	char cbm_mask[256];
+	int count_of_bits;
 	char pipe_message;
 
-	cache_size = 0;
-
 	/* Get default cbm mask for L3/L2 cache */
 	ret = get_cbm_mask(cache_type, cbm_mask);
 	if (ret)
diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c
index 7214aefb55ede..0ac9d6bbd13d6 100644
--- a/tools/testing/selftests/resctrl/cmt_test.c
+++ b/tools/testing/selftests/resctrl/cmt_test.c
@@ -16,11 +16,6 @@
 #define MAX_DIFF		2000000
 #define MAX_DIFF_PERCENT	15
 
-static int count_of_bits;
-static char cbm_mask[256];
-static unsigned long long_mask;
-static unsigned long cache_size;
-
 static int cmt_setup(struct resctrl_val_param *p)
 {
 	/* Run NUM_OF_RUNS times */
@@ -75,10 +70,12 @@ void cmt_test_cleanup(void)
 
 int cmt_resctrl_val(int cpu_no, int n, char **benchmark_cmd)
 {
+	unsigned long cache_size = 0;
+	unsigned long long_mask;
+	char cbm_mask[256];
+	int count_of_bits;
 	int ret;
 
-	cache_size = 0;
-
 	if (!validate_resctrl_feature_request(CMT_STR))
 		return -1;