[PATCH 18/22] selftests/resctrl: Move CAT/CMT test global vars to func they are used

From: Ilpo Järvinen
Date: Wed Apr 12 2023 - 09:25:04 EST


CAT and CMT tests have count_of_bits, long_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.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
tools/testing/selftests/resctrl/cat_test.c | 7 +++----
tools/testing/selftests/resctrl/cmt_test.c | 7 +++----
2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index edcc340744d7..cfad7e488340 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -17,10 +17,6 @@
#define MAX_DIFF_PERCENT 4
#define MAX_DIFF 1000000

-static int count_of_bits;
-static unsigned long long_mask;
-static unsigned long cache_size;
-
/*
* Change schemata. Write schemata to specified
* con_mon grp, mon_grp in resctrl FS.
@@ -95,6 +91,9 @@ 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;
+ unsigned long long_mask;
+ int count_of_bits;
char pipe_message;
pid_t bm_pid;

diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c
index 70c656581686..8fda7fc4d159 100644
--- a/tools/testing/selftests/resctrl/cmt_test.c
+++ b/tools/testing/selftests/resctrl/cmt_test.c
@@ -16,10 +16,6 @@
#define MAX_DIFF 2000000
#define MAX_DIFF_PERCENT 15

-static int count_of_bits;
-static unsigned long long_mask;
-static unsigned long cache_size;
-
static int cmt_setup(struct resctrl_val_param *p)
{
/* Run NUM_OF_RUNS times */
@@ -74,6 +70,9 @@ void cmt_test_cleanup(void)

int cmt_resctrl_val(int cpu_no, int n, char **benchmark_cmd)
{
+ unsigned long cache_size;
+ unsigned long long_mask;
+ int count_of_bits;
int ret;

cache_size = 0;
--
2.30.2