linux-kernel - [PATCH v2 04/13] selftests/resctrl: Use correct type for pids

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Date: Mon, 11 Mar 2024 15:52:21 +0200
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: linux-kselftest@...r.kernel.org,
	Reinette Chatre <reinette.chatre@...el.com>,
	Shuah Khan <shuah@...nel.org>,
	Babu Moger <babu.moger@....com>,
	Maciej Wieczór-Retman <maciej.wieczor-retman@...el.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>,
	linux-kernel@...r.kernel.org,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH v2 04/13] selftests/resctrl: Use correct type for pids

A few functions receive PIDs through int arguments. PIDs variables
should be of type pid_t, not int.

Convert pid arguments from int to pid_t.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 tools/testing/selftests/resctrl/cache.c       | 6 +++---
 tools/testing/selftests/resctrl/resctrl.h     | 4 ++--
 tools/testing/selftests/resctrl/resctrl_val.c | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/resctrl/cache.c b/tools/testing/selftests/resctrl/cache.c
index 1b339d6bbff1..9b74fce80037 100644
--- a/tools/testing/selftests/resctrl/cache.c
+++ b/tools/testing/selftests/resctrl/cache.c
@@ -101,7 +101,7 @@ static int get_llc_occu_resctrl(unsigned long *llc_occupancy)
  *
  * Return:		0 on success, < 0 on error.
  */
-static int print_results_cache(const char *filename, int bm_pid, __u64 llc_value)
+static int print_results_cache(const char *filename, pid_t bm_pid, __u64 llc_value)
 {
 	FILE *fp;
 
@@ -133,7 +133,7 @@ static int print_results_cache(const char *filename, int bm_pid, __u64 llc_value
  * Return: =0 on success. <0 on failure.
  */
 int perf_event_measure(int pe_fd, struct perf_event_read *pe_read,
-		       const char *filename, int bm_pid)
+		       const char *filename, pid_t bm_pid)
 {
 	int ret;
 
@@ -161,7 +161,7 @@ int perf_event_measure(int pe_fd, struct perf_event_read *pe_read,
  *
  * Return: =0 on success. <0 on failure.
  */
-int measure_llc_resctrl(const char *filename, int bm_pid)
+int measure_llc_resctrl(const char *filename, pid_t bm_pid)
 {
 	unsigned long llc_occu_resc = 0;
 	int ret;
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
index 2051bd135e0d..f810a3c5692c 100644
--- a/tools/testing/selftests/resctrl/resctrl.h
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -177,8 +177,8 @@ void perf_event_initialize_read_format(struct perf_event_read *pe_read);
 int perf_open(struct perf_event_attr *pea, pid_t pid, int cpu_no);
 int perf_event_reset_enable(int pe_fd);
 int perf_event_measure(int pe_fd, struct perf_event_read *pe_read,
-		       const char *filename, int bm_pid);
-int measure_llc_resctrl(const char *filename, int bm_pid);
+		       const char *filename, pid_t bm_pid);
+int measure_llc_resctrl(const char *filename, pid_t bm_pid);
 void show_cache_info(int no_of_bits, __u64 avg_llc_val, size_t cache_span, bool lines);
 
 /*
diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c
index 7981589f4db0..07fd57d8d125 100644
--- a/tools/testing/selftests/resctrl/resctrl_val.c
+++ b/tools/testing/selftests/resctrl/resctrl_val.c
@@ -545,7 +545,7 @@ void signal_handler_unregister(void)
  *
  * Return:		0 on success, < 0 on error.
  */
-static int print_results_bw(char *filename,  int bm_pid, float bw_imc,
+static int print_results_bw(char *filename, pid_t bm_pid, float bw_imc,
 			    unsigned long bw_resc)
 {
 	unsigned long diff = fabs(bw_imc - bw_resc);
-- 
2.39.2