15 files changed, 403 insertions, 56 deletions

diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index e7a8cf83ba48..a83b5827532f 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -102,7 +102,7 @@ endif
 OVERRIDE_TARGETS := 1
 override define CLEAN
 	$(call msg,CLEAN)
-	$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
+	$(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 endef
 
 include ../lib.mk
@@ -123,17 +123,21 @@ $(notdir $(TEST_GEN_PROGS)						\
 	 $(TEST_GEN_PROGS_EXTENDED)					\
 	 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
 
+$(OUTPUT)/%.o: %.c
+	$(call msg,CC,,$@)
+	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
+
 $(OUTPUT)/%:%.c
 	$(call msg,BINARY,,$@)
-	$(LINK.c) $^ $(LDLIBS) -o $@
+	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
 
 $(OUTPUT)/urandom_read: urandom_read.c
 	$(call msg,BINARY,,$@)
-	$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id
+	$(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id
 
 $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
 	$(call msg,CC,,$@)
-	$(CC) -c $(CFLAGS) -o $@ $<
+	$(Q)$(CC) -c $(CFLAGS) -o $@ $<
 
 VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\
 		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)	\
@@ -142,7 +146,9 @@ VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\
 		     /boot/vmlinux-$(shell uname -r)
 VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
 
-$(OUTPUT)/runqslower: $(BPFOBJ)
+DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
+
+$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
 	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower	\
 		    OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF)   \
 		    BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) &&	\
@@ -164,7 +170,6 @@ $(OUTPUT)/test_netcnt: cgroup_helpers.c
 $(OUTPUT)/test_sock_fields: cgroup_helpers.c
 $(OUTPUT)/test_sysctl: cgroup_helpers.c
 
-DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
 BPFTOOL ?= $(DEFAULT_BPFTOOL)
 $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
 		    $(BPFOBJ) | $(BUILD_DIR)/bpftool
@@ -180,15 +185,15 @@ $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
 
 $(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_DIR):
 	$(call msg,MKDIR,,$@)
-	mkdir -p $@
+	$(Q)mkdir -p $@
 
 $(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
 ifeq ($(VMLINUX_H),)
 	$(call msg,GEN,,$@)
-	$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
+	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
 else
 	$(call msg,CP,,$@)
-	cp "$(VMLINUX_H)" $@
+	$(Q)cp "$(VMLINUX_H)" $@
 endif
 
 $(RESOLVE_BTFIDS): $(BPFOBJ) | $(BUILD_DIR)/resolve_btfids	\
@@ -237,28 +242,28 @@ $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
 # $4 - LDFLAGS
 define CLANG_BPF_BUILD_RULE
 	$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
-	($(CLANG) $3 -O2 -target bpf -emit-llvm				\
+	$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm			\
 		-c $1 -o - || echo "BPF obj compilation failed") | 	\
 	$(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
 endef
 # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
 define CLANG_NOALU32_BPF_BUILD_RULE
 	$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
-	($(CLANG) $3 -O2 -target bpf -emit-llvm				\
+	$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm			\
 		-c $1 -o - || echo "BPF obj compilation failed") | 	\
 	$(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2
 endef
 # Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
 define CLANG_NATIVE_BPF_BUILD_RULE
 	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
-	($(CLANG) $3 -O2 -emit-llvm					\
+	$(Q)($(CLANG) $3 -O2 -emit-llvm					\
 		-c $1 -o - || echo "BPF obj compilation failed") | 	\
 	$(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
 endef
 # Build BPF object using GCC
 define GCC_BPF_BUILD_RULE
 	$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
-	$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
+	$(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
 endef
 
 SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
@@ -300,7 +305,7 @@ ifeq ($($(TRUNNER_OUTPUT)-dir),)
 $(TRUNNER_OUTPUT)-dir := y
 $(TRUNNER_OUTPUT):
 	$$(call msg,MKDIR,,$$@)
-	mkdir -p $$@
+	$(Q)mkdir -p $$@
 endif
 
 # ensure we set up BPF objects generation rule just once for a given
@@ -320,7 +325,7 @@ $(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h:			\
 		      $(TRUNNER_OUTPUT)/%.o				\
 		      | $(BPFTOOL) $(TRUNNER_OUTPUT)
 	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
-	$$(BPFTOOL) gen skeleton $$< > $$@
+	$(Q)$$(BPFTOOL) gen skeleton $$< > $$@
 endif
 
 # ensure we set up tests.h header generation rule just once
@@ -344,7 +349,7 @@ $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:			\
 		      $(TRUNNER_BPF_SKELS)				\
 		      $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 	$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
-	cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
+	$(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
 
 $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
 		       %.c						\
@@ -352,13 +357,13 @@ $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
 		       $(TRUNNER_TESTS_HDR)				\
 		       $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 	$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
-	$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
+	$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
 
 # only copy extra resources if in flavored build
 $(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
 ifneq ($2,)
 	$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
-	cp -a $$^ $(TRUNNER_OUTPUT)/
+	$(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
 endif
 
 $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)			\
@@ -366,8 +371,8 @@ $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)			\
 			     $(RESOLVE_BTFIDS)				\
 			     | $(TRUNNER_BINARY)-extras
 	$$(call msg,BINARY,,$$@)
-	$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
-	$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@
+	$(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
+	$(Q)$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@
 
 endef
 
@@ -420,17 +425,17 @@ verifier/tests.h: verifier/*.c
 		) > verifier/tests.h)
 $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
 	$(call msg,BINARY,,$@)
-	$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
+	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 
 # Make sure we are able to include and link libbpf against c++.
 $(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
 	$(call msg,CXX,,$@)
-	$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
+	$(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
 
 # Benchmark runner
 $(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
 	$(call msg,CC,,$@)
-	$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
+	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 $(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
 $(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
 $(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
@@ -443,7 +448,7 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
 		 $(OUTPUT)/bench_trigger.o \
 		 $(OUTPUT)/bench_ringbufs.o
 	$(call msg,BINARY,,$@)
-	$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
+	$(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
 
 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR)			\
 	prog_tests/tests.h map_tests/tests.h verifier/tests.h		\
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
index 4ffefdc1130f..7375d9a6d242 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
@@ -468,6 +468,7 @@ static void test_bpf_hash_map(void)
 	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 	struct bpf_iter_bpf_hash_map *skel;
 	int err, i, len, map_fd, iter_fd;
+	union bpf_iter_link_info linfo;
 	__u64 val, expected_val = 0;
 	struct bpf_link *link;
 	struct key_t {
@@ -490,13 +491,16 @@ static void test_bpf_hash_map(void)
 		goto out;
 
 	/* iterator with hashmap2 and hashmap3 should fail */
-	opts.map_fd = bpf_map__fd(skel->maps.hashmap2);
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap2);
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
 	if (CHECK(!IS_ERR(link), "attach_iter",
 		  "attach_iter for hashmap2 unexpected succeeded\n"))
 		goto out;
 
-	opts.map_fd = bpf_map__fd(skel->maps.hashmap3);
+	linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap3);
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
 	if (CHECK(!IS_ERR(link), "attach_iter",
 		  "attach_iter for hashmap3 unexpected succeeded\n"))
@@ -519,7 +523,7 @@ static void test_bpf_hash_map(void)
 			goto out;
 	}
 
-	opts.map_fd = map_fd;
+	linfo.map.map_fd = map_fd;
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
 	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
 		goto out;
@@ -562,6 +566,7 @@ static void test_bpf_percpu_hash_map(void)
 	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 	struct bpf_iter_bpf_percpu_hash_map *skel;
 	int err, i, j, len, map_fd, iter_fd;
+	union bpf_iter_link_info linfo;
 	__u32 expected_val = 0;
 	struct bpf_link *link;
 	struct key_t {
@@ -606,7 +611,10 @@ static void test_bpf_percpu_hash_map(void)
 			goto out;
 	}
 
-	opts.map_fd = map_fd;
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_percpu_hash_map, &opts);
 	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
 		goto out;
@@ -649,6 +657,7 @@ static void test_bpf_array_map(void)
 	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 	__u32 expected_key = 0, res_first_key;
 	struct bpf_iter_bpf_array_map *skel;
+	union bpf_iter_link_info linfo;
 	int err, i, map_fd, iter_fd;
 	struct bpf_link *link;
 	char buf[64] = {};
@@ -673,7 +682,10 @@ static void test_bpf_array_map(void)
 			goto out;
 	}
 
-	opts.map_fd = map_fd;
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_array_map, &opts);
 	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
 		goto out;
@@ -730,6 +742,7 @@ static void test_bpf_percpu_array_map(void)
 	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 	struct bpf_iter_bpf_percpu_array_map *skel;
 	__u32 expected_key = 0, expected_val = 0;
+	union bpf_iter_link_info linfo;
 	int err, i, j, map_fd, iter_fd;
 	struct bpf_link *link;
 	char buf[64];
@@ -765,7 +778,10 @@ static void test_bpf_percpu_array_map(void)
 			goto out;
 	}
 
-	opts.map_fd = map_fd;
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_percpu_array_map, &opts);
 	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
 		goto out;
@@ -803,6 +819,7 @@ static void test_bpf_sk_storage_map(void)
 	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 	int err, i, len, map_fd, iter_fd, num_sockets;
 	struct bpf_iter_bpf_sk_storage_map *skel;
+	union bpf_iter_link_info linfo;
 	int sock_fd[3] = {-1, -1, -1};
 	__u32 val, expected_val = 0;
 	struct bpf_link *link;
@@ -829,7 +846,10 @@ static void test_bpf_sk_storage_map(void)
 			goto out;
 	}
 
-	opts.map_fd = map_fd;
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_sk_storage_map, &opts);
 	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
 		goto out;
@@ -871,6 +891,7 @@ static void test_rdonly_buf_out_of_bound(void)
 {
 	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 	struct bpf_iter_test_kern5 *skel;
+	union bpf_iter_link_info linfo;
 	struct bpf_link *link;
 
 	skel = bpf_iter_test_kern5__open_and_load();
@@ -878,7 +899,10 @@ static void test_rdonly_buf_out_of_bound(void)
 		  "skeleton open_and_load failed\n"))
 		return;
 
-	opts.map_fd = bpf_map__fd(skel->maps.hashmap1);
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap1);
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
 	if (CHECK(!IS_ERR(link), "attach_iter", "unexpected success\n"))
 		bpf_link__destroy(link);
diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c
index 504abb7bfb95..7043e6ded0e6 100644
--- a/tools/testing/selftests/bpf/prog_tests/send_signal.c
+++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c
@@ -48,21 +48,19 @@ static void test_send_signal_common(struct perf_event_attr *attr,
 		close(pipe_p2c[1]); /* close write */
 
 		/* notify parent signal handler is installed */
-		write(pipe_c2p[1], buf, 1);
+		CHECK(write(pipe_c2p[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
 
 		/* make sure parent enabled bpf program to send_signal */
-		read(pipe_p2c[0], buf, 1);
+		CHECK(read(pipe_p2c[0], buf, 1) != 1, "pipe_read", "err %d\n", -errno);
 
 		/* wait a little for signal handler */
 		sleep(1);
 
-		if (sigusr1_received)
-			write(pipe_c2p[1], "2", 1);
-		else
-			write(pipe_c2p[1], "0", 1);
+		buf[0] = sigusr1_received ? '2' : '0';
+		CHECK(write(pipe_c2p[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
 
 		/* wait for parent notification and exit */
-		read(pipe_p2c[0], buf, 1);
+		CHECK(read(pipe_p2c[0], buf, 1) != 1, "pipe_read", "err %d\n", -errno);
 
 		close(pipe_c2p[1]);
 		close(pipe_p2c[0]);
@@ -99,7 +97,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
 	}
 
 	/* wait until child signal handler installed */
-	read(pipe_c2p[0], buf, 1);
+	CHECK(read(pipe_c2p[0], buf, 1) != 1, "pipe_read", "err %d\n", -errno);
 
 	/* trigger the bpf send_signal */
 	skel->bss->pid = pid;
@@ -107,7 +105,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
 	skel->bss->signal_thread = signal_thread;
 
 	/* notify child that bpf program can send_signal now */
-	write(pipe_p2c[1], buf, 1);
+	CHECK(write(pipe_p2c[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
 
 	/* wait for result */
 	err = read(pipe_c2p[0], buf, 1);
@@ -121,7 +119,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
 	CHECK(buf[0] != '2', test_name, "incorrect result\n");
 
 	/* notify child safe to exit */
-	write(pipe_p2c[1], buf, 1);
+	CHECK(write(pipe_p2c[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
 
 disable_pmu:
 	close(pmu_fd);
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
index f002e3090d92..11a769e18f5d 100644
--- a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
@@ -6,11 +6,13 @@ static __u64 read_perf_max_sample_freq(void)
 {
 	__u64 sample_freq = 5000; /* fallback to 5000 on error */
 	FILE *f;
+	__u32 duration = 0;
 
 	f = fopen("/proc/sys/kernel/perf_event_max_sample_rate", "r");
 	if (f == NULL)
 		return sample_freq;
-	fscanf(f, "%llu", &sample_freq);
+	CHECK(fscanf(f, "%llu", &sample_freq) != 1, "Get max sample rate",
+		  "return default value: 5000,err %d\n", -errno);
 	fclose(f);
 	return sample_freq;
 }
diff --git a/tools/testing/selftests/bpf/settings b/tools/testing/selftests/bpf/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/bpf/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/bpf/test_tcpnotify_user.c b/tools/testing/selftests/bpf/test_tcpnotify_user.c
index 8549b31716ab..73da7fe8c152 100644
--- a/tools/testing/selftests/bpf/test_tcpnotify_user.c
+++ b/tools/testing/selftests/bpf/test_tcpnotify_user.c
@@ -124,17 +124,24 @@ int main(int argc, char **argv)
 	sprintf(test_script,
 		"iptables -A INPUT -p tcp --dport %d -j DROP",
 		TESTPORT);
-	system(test_script);
+	if (system(test_script)) {
+		printf("FAILED: execute command: %s, err %d\n", test_script, -errno);
+		goto err;
+	}
 
 	sprintf(test_script,
 		"nc 127.0.0.1 %d < /etc/passwd > /dev/null 2>&1 ",
 		TESTPORT);
-	system(test_script);
+	if (system(test_script))
+		printf("execute command: %s, err %d\n", test_script, -errno);
 
 	sprintf(test_script,
 		"iptables -D INPUT -p tcp --dport %d -j DROP",
 		TESTPORT);
-	system(test_script);
+	if (system(test_script)) {
+		printf("FAILED: execute command: %s, err %d\n", test_script, -errno);
+		goto err;
+	}
 
 	rv = bpf_map_lookup_elem(bpf_map__fd(global_map), &key, &g);
 	if (rv != 0) {
diff --git a/tools/testing/selftests/cgroup/test_kmem.c b/tools/testing/selftests/cgroup/test_kmem.c
index 5224dae216e5..0941aa16157e 100644
--- a/tools/testing/selftests/cgroup/test_kmem.c
+++ b/tools/testing/selftests/cgroup/test_kmem.c
@@ -18,6 +18,15 @@
 #include "cgroup_util.h"
 
 
+/*
+ * Memory cgroup charging and vmstat data aggregation is performed using
+ * percpu batches 32 pages big (look at MEMCG_CHARGE_BATCH). So the maximum
+ * discrepancy between charge and vmstat entries is number of cpus multiplied
+ * by 32 pages multiplied by 2.
+ */
+#define MAX_VMSTAT_ERROR (4096 * 32 * 2 * get_nprocs())
+
+
 static int alloc_dcache(const char *cgroup, void *arg)
 {
 	unsigned long i;
@@ -180,7 +189,7 @@ static int test_kmem_memcg_deletion(const char *root)
 		goto cleanup;
 
 	sum = slab + anon + file + kernel_stack;
-	if (abs(sum - current) < 4096 * 32 * 2 * get_nprocs()) {
+	if (abs(sum - current) < MAX_VMSTAT_ERROR) {
 		ret = KSFT_PASS;
 	} else {
 		printf("memory.current = %ld\n", current);
@@ -331,6 +340,64 @@ cleanup:
 	return ret;
 }
 
+/*
+ * This test creates a sub-tree with 1000 memory cgroups.
+ * Then it checks that the memory.current on the parent level
+ * is greater than 0 and approximates matches the percpu value
+ * from memory.stat.
+ */
+static int test_percpu_basic(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent, *child;
+	long current, percpu;
+	int i;
+
+	parent = cg_name(root, "percpu_basic_test");
+	if (!parent)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	for (i = 0; i < 1000; i++) {
+		child = cg_name_indexed(parent, "child", i);
+		if (!child)
+			return -1;
+
+		if (cg_create(child))
+			goto cleanup_children;
+
+		free(child);
+	}
+
+	current = cg_read_long(parent, "memory.current");
+	percpu = cg_read_key_long(parent, "memory.stat", "percpu ");
+
+	if (current > 0 && percpu > 0 && abs(current - percpu) <
+	    MAX_VMSTAT_ERROR)
+		ret = KSFT_PASS;
+	else
+		printf("memory.current %ld\npercpu %ld\n",
+		       current, percpu);
+
+cleanup_children:
+	for (i = 0; i < 1000; i++) {
+		child = cg_name_indexed(parent, "child", i);
+		cg_destroy(child);
+		free(child);
+	}
+
+cleanup:
+	cg_destroy(parent);
+	free(parent);
+
+	return ret;
+}
+
 #define T(x) { x, #x }
 struct kmem_test {
 	int (*fn)(const char *root);
@@ -341,6 +408,7 @@ struct kmem_test {
 	T(test_kmem_proc_kpagecgroup),
 	T(test_kmem_kernel_stacks),
 	T(test_kmem_dead_cgroups),
+	T(test_percpu_basic),
 };
 #undef T
 
diff --git a/tools/testing/selftests/exec/.gitignore b/tools/testing/selftests/exec/.gitignore
index 94b02a18f230..344a99c6da1b 100644
--- a/tools/testing/selftests/exec/.gitignore
+++ b/tools/testing/selftests/exec/.gitignore
@@ -10,3 +10,4 @@ execveat.denatured
 /recursion-depth
 xxxxxxxx*
 pipe
+S_I*.test
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index 4453b8f8def3..0a13b110c1e6 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -3,7 +3,7 @@ CFLAGS = -Wall
 CFLAGS += -Wno-nonnull
 CFLAGS += -D_GNU_SOURCE
 
-TEST_PROGS := binfmt_script
+TEST_PROGS := binfmt_script non-regular
 TEST_GEN_PROGS := execveat
 TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir pipe
 # Makefile is a run-time dependency, since it's accessed by the execveat test
@@ -11,7 +11,8 @@ TEST_FILES := Makefile
 
 TEST_GEN_PROGS += recursion-depth
 
-EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx*
+EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx*	\
+	       $(OUTPUT)/S_I*.test
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/exec/non-regular.c b/tools/testing/selftests/exec/non-regular.c
new file mode 100644
index 000000000000..cd3a34aca93e
--- /dev/null
+++ b/tools/testing/selftests/exec/non-regular.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+
+#include "../kselftest_harness.h"
+
+/* Remove a file, ignoring the result if it didn't exist. */
+void rm(struct __test_metadata *_metadata, const char *pathname,
+	int is_dir)
+{
+	int rc;
+
+	if (is_dir)
+		rc = rmdir(pathname);
+	else
+		rc = unlink(pathname);
+
+	if (rc < 0) {
+		ASSERT_EQ(errno, ENOENT) {
+			TH_LOG("Not ENOENT: %s", pathname);
+		}
+	} else {
+		ASSERT_EQ(rc, 0) {
+			TH_LOG("Failed to remove: %s", pathname);
+		}
+	}
+}
+
+FIXTURE(file) {
+	char *pathname;
+	int is_dir;
+};
+
+FIXTURE_VARIANT(file)
+{
+	const char *name;
+	int expected;
+	int is_dir;
+	void (*setup)(struct __test_metadata *_metadata,
+		      FIXTURE_DATA(file) *self,
+		      const FIXTURE_VARIANT(file) *variant);
+	int major, minor, mode; /* for mknod() */
+};
+
+void setup_link(struct __test_metadata *_metadata,
+		FIXTURE_DATA(file) *self,
+		const FIXTURE_VARIANT(file) *variant)
+{
+	const char * const paths[] = {
+		"/bin/true",
+		"/usr/bin/true",
+	};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(paths); i++) {
+		if (access(paths[i], X_OK) == 0) {
+			ASSERT_EQ(symlink(paths[i], self->pathname), 0);
+			return;
+		}
+	}
+	ASSERT_EQ(1, 0) {
+		TH_LOG("Could not find viable 'true' binary");
+	}
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFLNK)
+{
+	.name = "S_IFLNK",
+	.expected = ELOOP,
+	.setup = setup_link,
+};
+
+void setup_dir(struct __test_metadata *_metadata,
+	       FIXTURE_DATA(file) *self,
+	       const FIXTURE_VARIANT(file) *variant)
+{
+	ASSERT_EQ(mkdir(self->pathname, 0755), 0);
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFDIR)
+{
+	.name = "S_IFDIR",
+	.is_dir = 1,
+	.expected = EACCES,
+	.setup = setup_dir,
+};
+
+void setup_node(struct __test_metadata *_metadata,
+		FIXTURE_DATA(file) *self,
+		const FIXTURE_VARIANT(file) *variant)
+{
+	dev_t dev;
+	int rc;
+
+	dev = makedev(variant->major, variant->minor);
+	rc = mknod(self->pathname, 0755 | variant->mode, dev);
+	ASSERT_EQ(rc, 0) {
+		if (errno == EPERM)
+			SKIP(return, "Please run as root; cannot mknod(%s)",
+				variant->name);
+	}
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFBLK)
+{
+	.name = "S_IFBLK",
+	.expected = EACCES,
+	.setup = setup_node,
+	/* /dev/loop0 */
+	.major = 7,
+	.minor = 0,
+	.mode = S_IFBLK,
+};
+
+FIXTURE_VARIANT_ADD(file, S_IFCHR)
+{
+	.name = "S_IFCHR",
+	.expected = EACCES,
+	.setup = setup_node,
+	/* /dev/zero */
+	.major = 1,
+	.minor = 5,
+	.mode = S_IFCHR,
+};
+
+void setup_fifo(struct __test_metadata *_metadata,
+		FIXTURE_DATA(file) *self,
+		const FIXTURE_VARIANT(file) *variant)
+{
+	ASSERT_EQ(mkfifo(self->pathname, 0755), 0);
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFIFO)
+{
+	.name = "S_IFIFO",
+	.expected = EACCES,
+	.setup = setup_fifo,
+};
+
+FIXTURE_SETUP(file)
+{
+	ASSERT_GT(asprintf(&self->pathname, "%s.test", variant->name), 6);
+	self->is_dir = variant->is_dir;
+
+	rm(_metadata, self->pathname, variant->is_dir);
+	variant->setup(_metadata, self, variant);
+}
+
+FIXTURE_TEARDOWN(file)
+{
+	rm(_metadata, self->pathname, self->is_dir);
+}
+
+TEST_F(file, exec_errno)
+{
+	char * const argv[2] = { (char * const)self->pathname, NULL };
+
+	EXPECT_LT(execv(argv[0], argv), 0);
+	EXPECT_EQ(errno, variant->expected);
+}
+
+/* S_IFSOCK */
+FIXTURE(sock)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(sock)
+{
+	self->fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GE(self->fd, 0);
+}
+
+FIXTURE_TEARDOWN(sock)
+{
+	if (self->fd >= 0)
+		ASSERT_EQ(close(self->fd), 0);
+}
+
+TEST_F(sock, exec_errno)
+{
+	char * const argv[2] = { " magic socket ", NULL };
+	char * const envp[1] = { NULL };
+
+	EXPECT_LT(fexecve(self->fd, argv, envp), 0);
+	EXPECT_EQ(errno, EACCES);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/kmod/kmod.sh b/tools/testing/selftests/kmod/kmod.sh
index ea2147248ebe..afd42387e8b2 100755
--- a/tools/testing/selftests/kmod/kmod.sh
+++ b/tools/testing/selftests/kmod/kmod.sh
@@ -343,7 +343,7 @@ kmod_test_0001_driver()
 
 	kmod_defaults_driver
 	config_num_threads 1
-	printf '\000' >"$DIR"/config_test_driver
+	printf $NAME >"$DIR"/config_test_driver
 	config_trigger ${FUNCNAME[0]}
 	config_expect_result ${FUNCNAME[0]} MODULE_NOT_FOUND
 }
@@ -354,7 +354,7 @@ kmod_test_0001_fs()
 
 	kmod_defaults_fs
 	config_num_threads 1
-	printf '\000' >"$DIR"/config_test_fs
+	printf $NAME >"$DIR"/config_test_fs
 	config_trigger ${FUNCNAME[0]}
 	config_expect_result ${FUNCNAME[0]} -EINVAL
 }
diff --git a/tools/testing/selftests/net/mptcp/config b/tools/testing/selftests/net/mptcp/config
index 2499824d9e1c..8df5cb8f71ff 100644
--- a/tools/testing/selftests/net/mptcp/config
+++ b/tools/testing/selftests/net/mptcp/config
@@ -1,4 +1,6 @@
 CONFIG_MPTCP=y
 CONFIG_MPTCP_IPV6=y
+CONFIG_INET_DIAG=m
+CONFIG_INET_MPTCP_DIAG=m
 CONFIG_VETH=y
 CONFIG_NET_SCH_NETEM=m
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
index cad6f73a5fd0..090620c3e10c 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -406,10 +406,11 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd)
 
 				/* ... but we still receive.
 				 * Close our write side, ev. give some time
-				 * for address notification
+				 * for address notification and/or checking
+				 * the current status
 				 */
-				if (cfg_join)
-					usleep(400000);
+				if (cfg_wait)
+					usleep(cfg_wait);
 				shutdown(peerfd, SHUT_WR);
 			} else {
 				if (errno == EINTR)
@@ -427,7 +428,7 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd)
 	}
 
 	/* leave some time for late join/announce */
-	if (cfg_wait)
+	if (cfg_join)
 		usleep(cfg_wait);
 
 	close(peerfd);
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 535720b2592a..7a6d40286a42 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -133,6 +133,8 @@ struct seccomp_data {
 #  define __NR_seccomp 348
 # elif defined(__xtensa__)
 #  define __NR_seccomp 337
+# elif defined(__sh__)
+#  define __NR_seccomp 372
 # else
 #  warning "seccomp syscall number unknown for this architecture"
 #  define __NR_seccomp 0xffff
@@ -1719,6 +1721,10 @@ TEST_F(TRACE_poke, getpid_runs_normally)
  * a2 of the current window which is not fixed.
  */
 #define SYSCALL_RET(reg) a[(reg).windowbase * 4 + 2]
+#elif defined(__sh__)
+# define ARCH_REGS	struct pt_regs
+# define SYSCALL_NUM	gpr[3]
+# define SYSCALL_RET	gpr[0]
 #else
 # error "Do not know how to find your architecture's registers and syscalls"
 #endif
@@ -1791,7 +1797,7 @@ void change_syscall(struct __test_metadata *_metadata,
 
 #if defined(__x86_64__) || defined(__i386__) || defined(__powerpc__) || \
 	defined(__s390__) || defined(__hppa__) || defined(__riscv) || \
-	defined(__xtensa__) || defined(__csky__)
+	defined(__xtensa__) || defined(__csky__) || defined(__sh__)
 	{
 		regs.SYSCALL_NUM = syscall;
 	}
diff --git a/tools/testing/selftests/vm/hmm-tests.c b/tools/testing/selftests/vm/hmm-tests.c
index 91d38a29956b..93fc5cadce61 100644
--- a/tools/testing/selftests/vm/hmm-tests.c
+++ b/tools/testing/selftests/vm/hmm-tests.c
@@ -942,6 +942,41 @@ TEST_F(hmm, migrate_fault)
 }
 
 /*
+ * Migrate anonymous shared memory to device private memory.
+ */
+TEST_F(hmm, migrate_shared)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_SHARED | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Migrate memory to device. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_MIGRATE, buffer, npages);
+	ASSERT_EQ(ret, -ENOENT);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
  * Try to migrate various memory types to device private memory.
  */
 TEST_F(hmm2, migrate_mixed)