linux-kernel - [PATCH v3 12/15] selftests/futex: Refactor futex_priv_hash with kselftest

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Message-Id: <20250917-tonyk-robust_test_cleanup-v3-12-306b373c244d@igalia.com>
Date: Wed, 17 Sep 2025 18:21:51 -0300
From: André Almeida <andrealmeid@...lia.com>
To: Shuah Khan <shuah@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, 
 Darren Hart <dvhart@...radead.org>, Davidlohr Bueso <dave@...olabs.net>, 
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, 
 kernel-dev@...lia.com, 
 André Almeida <andrealmeid@...lia.com>
Subject: [PATCH v3 12/15] selftests/futex: Refactor futex_priv_hash with
 kselftest_harness.h

To reduce the boilerplate code, refactor futex_priv_hash test to use
kselftest_harness header instead of futex's logging header.

Signed-off-by: André Almeida <andrealmeid@...lia.com>
---
 .../selftests/futex/functional/futex_priv_hash.c   | 48 ++++------------------
 tools/testing/selftests/futex/functional/run.sh    |  2 +-
 2 files changed, 8 insertions(+), 42 deletions(-)

diff --git a/tools/testing/selftests/futex/functional/futex_priv_hash.c b/tools/testing/selftests/futex/functional/futex_priv_hash.c
index 95f01603a6813cdfd6ec9ee1f22c4c4f5061004c..3b7b5851f290fcabd693276fc6746cfe30ca9520 100644
--- a/tools/testing/selftests/futex/functional/futex_priv_hash.c
+++ b/tools/testing/selftests/futex/functional/futex_priv_hash.c
@@ -14,7 +14,7 @@
 #include <linux/prctl.h>
 #include <sys/prctl.h>
 
-#include "logging.h"
+#include "../../kselftest_harness.h"
 
 #define MAX_THREADS	64
 
@@ -128,45 +128,14 @@ static void futex_dummy_op(void)
 		ksft_exit_fail_msg("pthread_mutex_timedlock() did not timeout: %d.\n", ret);
 }
 
-static void usage(char *prog)
-{
-	printf("Usage: %s\n", prog);
-	printf("  -c    Use color\n");
-	printf("  -h    Display this help message\n");
-	printf("  -v L  Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
-}
-
 static const char *test_msg_auto_create = "Automatic hash bucket init on thread creation.\n";
 static const char *test_msg_auto_inc = "Automatic increase with more than 16 CPUs\n";
 
-int main(int argc, char *argv[])
+TEST(priv_hash)
 {
 	int futex_slots1, futex_slotsn, online_cpus;
 	pthread_mutexattr_t mutex_attr_pi;
 	int ret, retry = 20;
-	int c;
-
-	while ((c = getopt(argc, argv, "chv:")) != -1) {
-		switch (c) {
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-			break;
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
-	}
-
-	ksft_print_header();
-	ksft_set_plan(21);
 
 	ret = pthread_mutexattr_init(&mutex_attr_pi);
 	ret |= pthread_mutexattr_setprotocol(&mutex_attr_pi, PTHREAD_PRIO_INHERIT);
@@ -279,7 +248,7 @@ int main(int argc, char *argv[])
 	ret = futex_hash_slots_set(0);
 	ksft_test_result(ret == 0, "Global hash request\n");
 	if (ret != 0)
-		goto out;
+		return;
 
 	futex_hash_slots_set_must_fail(4);
 	futex_hash_slots_set_must_fail(8);
@@ -288,17 +257,14 @@ int main(int argc, char *argv[])
 	futex_hash_slots_set_must_fail(6);
 
 	ret = pthread_barrier_init(&barrier_main, NULL, MAX_THREADS);
-	if (ret != 0) {
+	if (ret != 0)
 		ksft_exit_fail_msg("pthread_barrier_init failed: %m\n");
-		return 1;
-	}
+
 	create_max_threads(thread_lock_fn);
 	join_max_threads();
 
 	ret = futex_hash_slots_get();
 	ksft_test_result(ret == 0, "Continue to use global hash\n");
-
-out:
-	ksft_finished();
-	return 0;
 }
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/run.sh b/tools/testing/selftests/futex/functional/run.sh
index 4a7b0efbcce2962a2cc40e3911711079a4e70243..f725531f06c4a88e6d3ebbabb628a5d5009eaa3b 100755
--- a/tools/testing/selftests/futex/functional/run.sh
+++ b/tools/testing/selftests/futex/functional/run.sh
@@ -60,7 +60,7 @@ echo
 ./futex_waitv
 
 echo
-./futex_priv_hash $COLOR
+./futex_priv_hash
 
 echo
 ./futex_numa_mpol $COLOR

-- 
2.51.0