linux-kselftest-next-5.17-rc1

This Kselftest update for Linux 5.17-rc1 consists of fixes to build
 errors, false negatives, and several code cleanups, including the
 ARRAY_SIZE cleanup that removes 25+ duplicates ARRAY_SIZE defines
 from individual tests.
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Merge tag 'linux-kselftest-next-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest update from Shuah Khan:
 "Fixes to build errors, false negatives, and several code cleanups,
  including the ARRAY_SIZE cleanup that removes 25+ duplicates
  ARRAY_SIZE defines from individual tests"

* tag 'linux-kselftest-next-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/vm: remove ARRAY_SIZE define from individual tests
  selftests/timens: remove ARRAY_SIZE define from individual tests
  selftests/sparc64: remove ARRAY_SIZE define from adi-test
  selftests/seccomp: remove ARRAY_SIZE define from seccomp_benchmark
  selftests/rseq: remove ARRAY_SIZE define from individual tests
  selftests/net: remove ARRAY_SIZE define from individual tests
  selftests/landlock: remove ARRAY_SIZE define from common.h
  selftests/ir: remove ARRAY_SIZE define from ir_loopback.c
  selftests/core: remove ARRAY_SIZE define from close_range_test.c
  selftests/cgroup: remove ARRAY_SIZE define from cgroup_util.h
  selftests/arm64: remove ARRAY_SIZE define from vec-syscfg.c
  tools: fix ARRAY_SIZE defines in tools and selftests hdrs
  selftests: cgroup: build error multiple outpt files
  selftests/move_mount_set_group remove unneeded conversion to bool
  selftests/mount: remove unneeded conversion to bool
  selftests: harness: avoid false negatives if test has no ASSERTs
  selftests/ftrace: make kprobe profile testcase description unique
  selftests: clone3: clone3: add case CLONE3_ARGS_NO_TEST
  selftests: timers: Remove unneeded semicolon
  kselftests: timers:Remove unneeded semicolon

tools/include/linux/kernel.h

@@ -92,7 +92,9 @@ int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
 int scnprintf(char * buf, size_t size, const char * fmt, ...);
 int scnprintf_pad(char * buf, size_t size, const char * fmt, ...);
 
+#ifndef ARRAY_SIZE
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+#endif
 
 #define current_gfp_context(k) 0
 #define synchronize_rcu()

tools/testing/selftests/arm64/fp/vec-syscfg.c

@@ -21,8 +21,6 @@
 #include "../../kselftest.h"
 #include "rdvl.h"
 
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
-
 #define ARCH_MIN_VL SVE_VL_MIN
 
 struct vec_data {

tools/testing/selftests/cgroup/Makefile

@@ -11,10 +11,12 @@ TEST_GEN_PROGS += test_core
 TEST_GEN_PROGS += test_freezer
 TEST_GEN_PROGS += test_kill
 
+LOCAL_HDRS += $(selfdir)/clone3/clone3_selftests.h $(selfdir)/pidfd/pidfd.h
+
 include ../lib.mk
 
-$(OUTPUT)/test_memcontrol: cgroup_util.c ../clone3/clone3_selftests.h
-$(OUTPUT)/test_kmem: cgroup_util.c ../clone3/clone3_selftests.h
-$(OUTPUT)/test_core: cgroup_util.c ../clone3/clone3_selftests.h
-$(OUTPUT)/test_freezer: cgroup_util.c ../clone3/clone3_selftests.h
-$(OUTPUT)/test_kill: cgroup_util.c ../clone3/clone3_selftests.h ../pidfd/pidfd.h
+$(OUTPUT)/test_memcontrol: cgroup_util.c
+$(OUTPUT)/test_kmem: cgroup_util.c
+$(OUTPUT)/test_core: cgroup_util.c
+$(OUTPUT)/test_freezer: cgroup_util.c
+$(OUTPUT)/test_kill: cgroup_util.c

tools/testing/selftests/cgroup/cgroup_util.h

@@ -2,9 +2,9 @@
 #include <stdbool.h>
 #include <stdlib.h>
 
-#define PAGE_SIZE 4096
+#include "../kselftest.h"
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#define PAGE_SIZE 4096
 
 #define MB(x) (x << 20)
 

tools/testing/selftests/clone3/clone3.c

@@ -52,6 +52,12 @@ static int call_clone3(uint64_t flags, size_t size, enum test_mode test_mode)
 		size = sizeof(struct __clone_args);
 
 	switch (test_mode) {
+	case CLONE3_ARGS_NO_TEST:
+		/*
+		 * Uses default 'flags' and 'SIGCHLD'
+		 * assignment.
+		 */
+		break;
 	case CLONE3_ARGS_ALL_0:
 		args.flags = 0;
 		args.exit_signal = 0;

tools/testing/selftests/core/close_range_test.c

@@ -50,10 +50,6 @@ static inline int sys_close_range(unsigned int fd, unsigned int max_fd,
 	return syscall(__NR_close_range, fd, max_fd, flags);
 }
 
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#endif
-
 TEST(core_close_range)
 {
 	int i, ret;

tools/testing/selftests/ftrace/test.d/kprobe/profile.tc

@@ -1,6 +1,6 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
-# description: Kprobe dynamic event - adding and removing
+# description: Kprobe profile
 # requires: kprobe_events
 
 ! grep -q 'myevent' kprobe_profile

tools/testing/selftests/ir/ir_loopback.c

@@ -26,7 +26,6 @@
 #include "../kselftest.h"
 
 #define TEST_SCANCODES	10
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #define SYSFS_PATH_MAX 256
 #define DNAME_PATH_MAX 256
 

tools/testing/selftests/kselftest.h

@@ -48,6 +48,10 @@
 #include <stdarg.h>
 #include <stdio.h>
 
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
 /* define kselftest exit codes */
 #define KSFT_PASS  0
 #define KSFT_FAIL  1

tools/testing/selftests/kselftest_harness.h

@@ -671,7 +671,9 @@
 #define EXPECT_STRNE(expected, seen) \
 	__EXPECT_STR(expected, seen, !=, 0)
 
+#ifndef ARRAY_SIZE
 #define ARRAY_SIZE(a)	(sizeof(a) / sizeof(a[0]))
+#endif
 
 /* Support an optional handler after and ASSERT_* or EXPECT_*.  The approach is
  * not thread-safe, but it should be fine in most sane test scenarios.
@@ -969,7 +971,7 @@ void __run_test(struct __fixture_metadata *f,
 	t->passed = 1;
 	t->skip = 0;
 	t->trigger = 0;
-	t->step = 0;
+	t->step = 1;
 	t->no_print = 0;
 	memset(t->results->reason, 0, sizeof(t->results->reason));
 

tools/testing/selftests/landlock/common.h

@@ -17,10 +17,6 @@
 
 #include "../kselftest_harness.h"
 
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#endif
-
 /*
  * TEST_F_FORK() is useful when a test drop privileges but the corresponding
  * FIXTURE_TEARDOWN() requires them (e.g. to remove files from a directory

tools/testing/selftests/lib.mk

@@ -141,7 +141,7 @@ endif
 # Selftest makefiles can override those targets by setting
 # OVERRIDE_TARGETS = 1.
 ifeq ($(OVERRIDE_TARGETS),)
-LOCAL_HDRS := $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
+LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
 	$(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
 

tools/testing/selftests/mount/unprivileged-remount-test.c

@@ -204,7 +204,7 @@ bool test_unpriv_remount(const char *fstype, const char *mount_options,
 		if (!WIFEXITED(status)) {
 			die("child did not terminate cleanly\n");
 		}
-		return WEXITSTATUS(status) == EXIT_SUCCESS ? true : false;
+		return WEXITSTATUS(status) == EXIT_SUCCESS;
 	}
 
 	create_and_enter_userns();
@@ -282,7 +282,7 @@ static bool test_priv_mount_unpriv_remount(void)
 		if (!WIFEXITED(status)) {
 			die("child did not terminate cleanly\n");
 		}
-		return WEXITSTATUS(status) == EXIT_SUCCESS ? true : false;
+		return WEXITSTATUS(status) == EXIT_SUCCESS;
 	}
 
 	orig_mnt_flags = read_mnt_flags(orig_path);

tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c

@@ -191,7 +191,7 @@ static bool is_shared_mount(const char *path)
 #define SET_GROUP_FROM	"/tmp/move_mount_set_group_supported_from"
 #define SET_GROUP_TO	"/tmp/move_mount_set_group_supported_to"
 
-static int move_mount_set_group_supported(void)
+static bool move_mount_set_group_supported(void)
 {
 	int ret;
 
@@ -222,7 +222,7 @@ static int move_mount_set_group_supported(void)
 		      AT_FDCWD, SET_GROUP_TO, MOVE_MOUNT_SET_GROUP);
 	umount2("/tmp", MNT_DETACH);
 
-	return ret < 0 ? false : true;
+	return ret >= 0;
 }
 
 FIXTURE(move_mount_set_group) {
@@ -232,7 +232,7 @@ FIXTURE(move_mount_set_group) {
 
 FIXTURE_SETUP(move_mount_set_group)
 {
-	int ret;
+	bool ret;
 
 	ASSERT_EQ(prepare_unpriv_mountns(), 0);
 
@@ -254,7 +254,7 @@ FIXTURE_SETUP(move_mount_set_group)
 
 FIXTURE_TEARDOWN(move_mount_set_group)
 {
-	int ret;
+	bool ret;
 
 	ret = move_mount_set_group_supported();
 	ASSERT_GE(ret, 0);
@@ -348,7 +348,7 @@ TEST_F(move_mount_set_group, complex_sharing_copying)
 		.shared = false,
 	};
 	pid_t pid;
-	int ret;
+	bool ret;
 
 	ret = move_mount_set_group_supported();
 	ASSERT_GE(ret, 0);

tools/testing/selftests/net/gro.c

@@ -57,10 +57,11 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "../kselftest.h"
+
 #define DPORT 8000
 #define SPORT 1500
 #define PAYLOAD_LEN 100
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #define NUM_PACKETS 4
 #define START_SEQ 100
 #define START_ACK 100

tools/testing/selftests/net/ipsec.c

@@ -41,7 +41,6 @@
 
 #define pr_err(fmt, ...)	printk(fmt ": %m", ##__VA_ARGS__)
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 
 #define IPV4_STR_SZ	16	/* xxx.xxx.xxx.xxx is longest + \0 */

tools/testing/selftests/net/reuseport_bpf.c

@@ -24,9 +24,7 @@
 #include <sys/resource.h>
 #include <unistd.h>
 
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-#endif
+#include "../kselftest.h"
 
 struct test_params {
 	int recv_family;

tools/testing/selftests/net/rxtimestamp.c

@@ -18,7 +18,7 @@
 #include <linux/net_tstamp.h>
 #include <linux/errqueue.h>
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#include "../kselftest.h"
 
 struct options {
 	int so_timestamp;

tools/testing/selftests/net/socket.c

@@ -7,6 +7,8 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
+#include "../kselftest.h"
+
 struct socket_testcase {
 	int	domain;
 	int	type;
@@ -31,7 +33,6 @@ static struct socket_testcase tests[] = {
 	{ AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1  },
 };
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #define ERR_STRING_SZ	64
 
 static int run_tests(void)

tools/testing/selftests/net/tcp_fastopen_backup_key.c

@@ -26,6 +26,8 @@
 #include <fcntl.h>
 #include <time.h>
 
+#include "../kselftest.h"
+
 #ifndef TCP_FASTOPEN_KEY
 #define TCP_FASTOPEN_KEY 33
 #endif
@@ -34,10 +36,6 @@
 #define PROC_FASTOPEN_KEY "/proc/sys/net/ipv4/tcp_fastopen_key"
 #define KEY_LENGTH 16
 
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-#endif
-
 static bool do_ipv6;
 static bool do_sockopt;
 static bool do_rotate;

tools/testing/selftests/rseq/basic_percpu_ops_test.c

@@ -9,10 +9,9 @@
 #include <string.h>
 #include <stddef.h>
 
+#include "../kselftest.h"
 #include "rseq.h"
 
-#define ARRAY_SIZE(arr)	(sizeof(arr) / sizeof((arr)[0]))
-
 struct percpu_lock_entry {
 	intptr_t v;
 } __attribute__((aligned(128)));

tools/testing/selftests/rseq/rseq.c

@@ -27,10 +27,9 @@
 #include <signal.h>
 #include <limits.h>
 
+#include "../kselftest.h"
 #include "rseq.h"
 
-#define ARRAY_SIZE(arr)	(sizeof(arr) / sizeof((arr)[0]))
-
 __thread volatile struct rseq __rseq_abi = {
 	.cpu_id = RSEQ_CPU_ID_UNINITIALIZED,
 };

tools/testing/selftests/seccomp/seccomp_benchmark.c

@@ -18,7 +18,7 @@
 #include <sys/syscall.h>
 #include <sys/types.h>
 
-#define ARRAY_SIZE(a)    (sizeof(a) / sizeof(a[0]))
+#include "../kselftest.h"
 
 unsigned long long timing(clockid_t clk_id, unsigned long long samples)
 {

tools/testing/selftests/sparc64/drivers/adi-test.c

@@ -24,10 +24,6 @@
 #define DEBUG_LEVEL_4_BIT	(0x0008)
 #define DEBUG_TIMING_BIT	(0x1000)
 
-#ifndef ARRAY_SIZE
-# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#endif
-
 /* bit mask of enabled bits to print */
 #define DEBUG 0x0001
 

tools/testing/selftests/timens/procfs.c

@@ -24,8 +24,6 @@
 #define DAY_IN_SEC			(60*60*24)
 #define TEN_DAYS_IN_SEC			(10*DAY_IN_SEC)
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
 static int child_ns, parent_ns;
 
 static int switch_ns(int fd)

tools/testing/selftests/timens/timens.c

@@ -22,8 +22,6 @@
 #define DAY_IN_SEC			(60*60*24)
 #define TEN_DAYS_IN_SEC			(10*DAY_IN_SEC)
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
 struct test_clock {
 	clockid_t id;
 	char *name;

tools/testing/selftests/timers/alarmtimer-suspend.c

@@ -79,7 +79,7 @@ char *clockstring(int clockid)
 		return "CLOCK_BOOTTIME_ALARM";
 	case CLOCK_TAI:
 		return "CLOCK_TAI";
-	};
+	}
 	return "UNKNOWN_CLOCKID";
 }
 

tools/testing/selftests/timers/inconsistency-check.c

@@ -72,7 +72,7 @@ char *clockstring(int clockid)
 		return "CLOCK_BOOTTIME_ALARM";
 	case CLOCK_TAI:
 		return "CLOCK_TAI";
-	};
+	}
 	return "UNKNOWN_CLOCKID";
 }
 

tools/testing/selftests/vm/mremap_test.c

@@ -20,7 +20,6 @@
 #define VALIDATION_DEFAULT_THRESHOLD 4	/* 4MB */
 #define VALIDATION_NO_THRESHOLD 0	/* Verify the entire region */
 
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 #define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
 
 struct config {

tools/testing/selftests/vm/pkey-helpers.h

@@ -13,6 +13,8 @@
 #include <ucontext.h>
 #include <sys/mman.h>
 
+#include "../kselftest.h"
+
 /* Define some kernel-like types */
 #define  u8 __u8
 #define u16 __u16
@@ -175,7 +177,6 @@ static inline void __pkey_write_allow(int pkey, int do_allow_write)
 	dprintf4("pkey_reg now: %016llx\n", read_pkey_reg());
 }
 
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
 #define ALIGN_UP(x, align_to)	(((x) + ((align_to)-1)) & ~((align_to)-1))
 #define ALIGN_DOWN(x, align_to) ((x) & ~((align_to)-1))
 #define ALIGN_PTR_UP(p, ptr_align_to)	\

tools/testing/selftests/vm/va_128TBswitch.c

@@ -9,7 +9,7 @@
 #include <sys/mman.h>
 #include <string.h>
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#include "../kselftest.h"
 
 #ifdef __powerpc64__
 #define PAGE_SIZE	(64 << 10)