Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - BPF:
      - add syscall program type and libbpf support for generating
        instructions and bindings for in-kernel BPF loaders (BPF loaders
        for BPF), this is a stepping stone for signed BPF programs
      - infrastructure to migrate TCP child sockets from one listener to
        another in the same reuseport group/map to improve flexibility
        of service hand-off/restart
      - add broadcast support to XDP redirect

   - allow bypass of the lockless qdisc to improving performance (for
     pktgen: +23% with one thread, +44% with 2 threads)

   - add a simpler version of "DO_ONCE()" which does not require jump
     labels, intended for slow-path usage

   - virtio/vsock: introduce SOCK_SEQPACKET support

   - add getsocketopt to retrieve netns cookie

   - ip: treat lowest address of a IPv4 subnet as ordinary unicast
     address allowing reclaiming of precious IPv4 addresses

   - ipv6: use prandom_u32() for ID generation

   - ip: add support for more flexible field selection for hashing
     across multi-path routes (w/ offload to mlxsw)

   - icmp: add support for extended RFC 8335 PROBE (ping)

   - seg6: add support for SRv6 End.DT46 behavior

   - mptcp:
      - DSS checksum support (RFC 8684) to detect middlebox meddling
      - support Connection-time 'C' flag
      - time stamping support

   - sctp: packetization Layer Path MTU Discovery (RFC 8899)

   - xfrm: speed up state addition with seq set

   - WiFi:
      - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
      - aggregation handling improvements for some drivers
      - minstrel improvements for no-ack frames
      - deferred rate control for TXQs to improve reaction times
      - switch from round robin to virtual time-based airtime scheduler

   - add trace points:
      - tcp checksum errors
      - openvswitch - action execution, upcalls
      - socket errors via sk_error_report

  Device APIs:

   - devlink: add rate API for hierarchical control of max egress rate
     of virtual devices (VFs, SFs etc.)

   - don't require RCU read lock to be held around BPF hooks in NAPI
     context

   - page_pool: generic buffer recycling

  New hardware/drivers:

   - mobile:
      - iosm: PCIe Driver for Intel M.2 Modem
      - support for Qualcomm MSM8998 (ipa)

   - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices

   - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches

   - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)

   - NXP SJA1110 Automotive Ethernet 10-port switch

   - Qualcomm QCA8327 switch support (qca8k)

   - Mikrotik 10/25G NIC (atl1c)

  Driver changes:

   - ACPI support for some MDIO, MAC and PHY devices from Marvell and
     NXP (our first foray into MAC/PHY description via ACPI)

   - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx

   - Mellanox/Nvidia NIC (mlx5)
      - NIC VF offload of L2 bridging
      - support IRQ distribution to Sub-functions

   - Marvell (prestera):
      - add flower and match all
      - devlink trap
      - link aggregation

   - Netronome (nfp): connection tracking offload

   - Intel 1GE (igc): add AF_XDP support

   - Marvell DPU (octeontx2): ingress ratelimit offload

   - Google vNIC (gve): new ring/descriptor format support

   - Qualcomm mobile (rmnet & ipa): inline checksum offload support

   - MediaTek WiFi (mt76)
      - mt7915 MSI support
      - mt7915 Tx status reporting
      - mt7915 thermal sensors support
      - mt7921 decapsulation offload
      - mt7921 enable runtime pm and deep sleep

   - Realtek WiFi (rtw88)
      - beacon filter support
      - Tx antenna path diversity support
      - firmware crash information via devcoredump

   - Qualcomm WiFi (wcn36xx)
      - Wake-on-WLAN support with magic packets and GTK rekeying

   - Micrel PHY (ksz886x/ksz8081): add cable test support"

* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
  tcp: change ICSK_CA_PRIV_SIZE definition
  tcp_yeah: check struct yeah size at compile time
  gve: DQO: Fix off by one in gve_rx_dqo()
  stmmac: intel: set PCI_D3hot in suspend
  stmmac: intel: Enable PHY WOL option in EHL
  net: stmmac: option to enable PHY WOL with PMT enabled
  net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
  net: use netdev_info in ndo_dflt_fdb_{add,del}
  ptp: Set lookup cookie when creating a PTP PPS source.
  net: sock: add trace for socket errors
  net: sock: introduce sk_error_report
  net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
  net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
  net: dsa: include fdb entries pointing to bridge in the host fdb list
  net: dsa: include bridge addresses which are local in the host fdb list
  net: dsa: sync static FDB entries on foreign interfaces to hardware
  net: dsa: install the host MDB and FDB entries in the master's RX filter
  net: dsa: reference count the FDB addresses at the cross-chip notifier level
  net: dsa: introduce a separate cross-chip notifier type for host FDBs
  net: dsa: reference count the MDB entries at the cross-chip notifier level
  ...

160 files changed, 5549 insertions, 720 deletions

diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index 4866f6a21901..addcfd8b615e 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -10,6 +10,7 @@ FEATURE-DUMP.libbpf
 fixdep
 test_dev_cgroup
 /test_progs*
+!test_progs.h
 test_verifier_log
 feature
 test_sock
@@ -30,10 +31,13 @@ test_sysctl
 xdping
 test_cpp
 *.skel.h
+*.lskel.h
 /no_alu32
 /bpf_gcc
 /tools
 /runqslower
 /bench
 *.ko
+*.tmp
 xdpxceiver
+xdp_redirect_multi
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 511259c2c6c5..f405b20c1e6c 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -54,6 +54,7 @@ TEST_FILES = xsk_prereqs.sh \
 # Order correspond to 'make run_tests' order
 TEST_PROGS := test_kmod.sh \
 	test_xdp_redirect.sh \
+	test_xdp_redirect_multi.sh \
 	test_xdp_meta.sh \
 	test_xdp_veth.sh \
 	test_offload.py \
@@ -84,7 +85,7 @@ TEST_PROGS_EXTENDED := with_addr.sh \
 TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
 	flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
 	test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
-	xdpxceiver
+	xdpxceiver xdp_redirect_multi
 
 TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
 
@@ -312,6 +313,10 @@ SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
 LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h		\
 		linked_vars.skel.h linked_maps.skel.h
 
+LSKELS := kfunc_call_test.c fentry_test.c fexit_test.c fexit_sleep.c \
+	test_ksyms_module.c test_ringbuf.c atomics.c trace_printk.c
+SKEL_BLACKLIST += $$(LSKELS)
+
 test_static_linked.skel.h-deps := test_static_linked1.o test_static_linked2.o
 linked_funcs.skel.h-deps := linked_funcs1.o linked_funcs2.o
 linked_vars.skel.h-deps := linked_vars1.o linked_vars2.o
@@ -339,6 +344,7 @@ TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS)
 TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h,	\
 				 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\
 					       $$(TRUNNER_BPF_SRCS)))
+TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS))
 TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))
 TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
 
@@ -380,6 +386,14 @@ $(TRUNNER_BPF_SKELS): %.skel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
 	$(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
 	$(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@
 
+$(TRUNNER_BPF_LSKELS): %.lskel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
+	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
+	$(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
+	$(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@
+
 $(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT)
 	$$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.o))
 	$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))
@@ -409,6 +423,7 @@ $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:			\
 		      $(TRUNNER_EXTRA_HDRS)				\
 		      $(TRUNNER_BPF_OBJS)				\
 		      $(TRUNNER_BPF_SKELS)				\
+		      $(TRUNNER_BPF_LSKELS)				\
 		      $(TRUNNER_BPF_SKELS_LINKED)			\
 		      $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 	$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
@@ -516,6 +531,6 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR)	\
 	prog_tests/tests.h map_tests/tests.h verifier/tests.h		\
 	feature								\
-	$(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc bpf_testmod.ko)
+	$(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h no_alu32 bpf_gcc bpf_testmod.ko)
 
 .PHONY: docs docs-clean
diff --git a/tools/testing/selftests/bpf/Makefile.docs b/tools/testing/selftests/bpf/Makefile.docs
index ccf260021e83..eb6a4fea8c79 100644
--- a/tools/testing/selftests/bpf/Makefile.docs
+++ b/tools/testing/selftests/bpf/Makefile.docs
@@ -52,7 +52,8 @@ $(OUTPUT)%.$2: $(OUTPUT)%.rst
 ifndef RST2MAN_DEP
 	$$(error "rst2man not found, but required to generate man pages")
 endif
-	$$(QUIET_GEN)rst2man $$< > $$@
+	$$(QUIET_GEN)rst2man --exit-status=1 $$< > $$@.tmp
+	$$(QUIET_GEN)mv $$@.tmp $$@
 
 docs-clean-$1:
 	$$(call QUIET_CLEAN, eBPF_$1-manpage)
diff --git a/tools/testing/selftests/bpf/README.rst b/tools/testing/selftests/bpf/README.rst
index 3353778c30f8..8deec1ca9150 100644
--- a/tools/testing/selftests/bpf/README.rst
+++ b/tools/testing/selftests/bpf/README.rst
@@ -202,3 +202,22 @@ generate valid BTF information for weak variables. Please make sure you use
 Clang that contains the fix.
 
 __ https://reviews.llvm.org/D100362
+
+Clang relocation changes
+========================
+
+Clang 13 patch `clang reloc patch`_  made some changes on relocations such
+that existing relocation types are broken into more types and
+each new type corresponds to only one way to resolve relocation.
+See `kernel llvm reloc`_ for more explanation and some examples.
+Using clang 13 to compile old libbpf which has static linker support,
+there will be a compilation failure::
+
+  libbpf: ELF relo #0 in section #6 has unexpected type 2 in .../bpf_tcp_nogpl.o
+
+Here, ``type 2`` refers to new relocation type ``R_BPF_64_ABS64``.
+To fix this issue, user newer libbpf.
+
+.. Links
+.. _clang reloc patch: https://reviews.llvm.org/D102712
+.. _kernel llvm reloc: /Documentation/bpf/llvm_reloc.rst
diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c
index 332ed2f7b402..6ea15b93a2f8 100644
--- a/tools/testing/selftests/bpf/bench.c
+++ b/tools/testing/selftests/bpf/bench.c
@@ -43,6 +43,7 @@ void setup_libbpf()
 {
 	int err;
 
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
 	libbpf_set_print(libbpf_print_fn);
 
 	err = bump_memlock_rlimit();
diff --git a/tools/testing/selftests/bpf/benchs/bench_rename.c b/tools/testing/selftests/bpf/benchs/bench_rename.c
index a967674098ad..c7ec114eca56 100644
--- a/tools/testing/selftests/bpf/benchs/bench_rename.c
+++ b/tools/testing/selftests/bpf/benchs/bench_rename.c
@@ -65,7 +65,7 @@ static void attach_bpf(struct bpf_program *prog)
 	struct bpf_link *link;
 
 	link = bpf_program__attach(prog);
-	if (IS_ERR(link)) {
+	if (!link) {
 		fprintf(stderr, "failed to attach program!\n");
 		exit(1);
 	}
diff --git a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c
index bde6c9d4cbd4..d167bffac679 100644
--- a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c
+++ b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c
@@ -181,7 +181,7 @@ static void ringbuf_libbpf_setup()
 	}
 
 	link = bpf_program__attach(ctx->skel->progs.bench_ringbuf);
-	if (IS_ERR(link)) {
+	if (!link) {
 		fprintf(stderr, "failed to attach program!\n");
 		exit(1);
 	}
@@ -271,7 +271,7 @@ static void ringbuf_custom_setup()
 	}
 
 	link = bpf_program__attach(ctx->skel->progs.bench_ringbuf);
-	if (IS_ERR(link)) {
+	if (!link) {
 		fprintf(stderr, "failed to attach program\n");
 		exit(1);
 	}
@@ -430,7 +430,7 @@ static void perfbuf_libbpf_setup()
 	}
 
 	link = bpf_program__attach(ctx->skel->progs.bench_perfbuf);
-	if (IS_ERR(link)) {
+	if (!link) {
 		fprintf(stderr, "failed to attach program\n");
 		exit(1);
 	}
diff --git a/tools/testing/selftests/bpf/benchs/bench_trigger.c b/tools/testing/selftests/bpf/benchs/bench_trigger.c
index 2a0b6c9885a4..f41a491a8cc0 100644
--- a/tools/testing/selftests/bpf/benchs/bench_trigger.c
+++ b/tools/testing/selftests/bpf/benchs/bench_trigger.c
@@ -60,7 +60,7 @@ static void attach_bpf(struct bpf_program *prog)
 	struct bpf_link *link;
 
 	link = bpf_program__attach(prog);
-	if (IS_ERR(link)) {
+	if (!link) {
 		fprintf(stderr, "failed to attach program!\n");
 		exit(1);
 	}
diff --git a/tools/testing/selftests/bpf/prog_tests/atomics.c b/tools/testing/selftests/bpf/prog_tests/atomics.c
index 21efe7bbf10d..ba0e1efe5a45 100644
--- a/tools/testing/selftests/bpf/prog_tests/atomics.c
+++ b/tools/testing/selftests/bpf/prog_tests/atomics.c
@@ -2,19 +2,19 @@
 
 #include <test_progs.h>
 
-#include "atomics.skel.h"
+#include "atomics.lskel.h"
 
 static void test_add(struct atomics *skel)
 {
 	int err, prog_fd;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 
-	link = bpf_program__attach(skel->progs.add);
-	if (CHECK(IS_ERR(link), "attach(add)", "err: %ld\n", PTR_ERR(link)))
+	link_fd = atomics__add__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(add)"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.add);
+	prog_fd = skel->progs.add.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	if (CHECK(err || retval, "test_run add",
@@ -33,20 +33,20 @@ static void test_add(struct atomics *skel)
 	ASSERT_EQ(skel->data->add_noreturn_value, 3, "add_noreturn_value");
 
 cleanup:
-	bpf_link__destroy(link);
+	close(link_fd);
 }
 
 static void test_sub(struct atomics *skel)
 {
 	int err, prog_fd;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 
-	link = bpf_program__attach(skel->progs.sub);
-	if (CHECK(IS_ERR(link), "attach(sub)", "err: %ld\n", PTR_ERR(link)))
+	link_fd = atomics__sub__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(sub)"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.sub);
+	prog_fd = skel->progs.sub.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	if (CHECK(err || retval, "test_run sub",
@@ -66,20 +66,20 @@ static void test_sub(struct atomics *skel)
 	ASSERT_EQ(skel->data->sub_noreturn_value, -1, "sub_noreturn_value");
 
 cleanup:
-	bpf_link__destroy(link);
+	close(link_fd);
 }
 
 static void test_and(struct atomics *skel)
 {
 	int err, prog_fd;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 
-	link = bpf_program__attach(skel->progs.and);
-	if (CHECK(IS_ERR(link), "attach(and)", "err: %ld\n", PTR_ERR(link)))
+	link_fd = atomics__and__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(and)"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.and);
+	prog_fd = skel->progs.and.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	if (CHECK(err || retval, "test_run and",
@@ -94,20 +94,20 @@ static void test_and(struct atomics *skel)
 
 	ASSERT_EQ(skel->data->and_noreturn_value, 0x010ull << 32, "and_noreturn_value");
 cleanup:
-	bpf_link__destroy(link);
+	close(link_fd);
 }
 
 static void test_or(struct atomics *skel)
 {
 	int err, prog_fd;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 
-	link = bpf_program__attach(skel->progs.or);
-	if (CHECK(IS_ERR(link), "attach(or)", "err: %ld\n", PTR_ERR(link)))
+	link_fd = atomics__or__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(or)"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.or);
+	prog_fd = skel->progs.or.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	if (CHECK(err || retval, "test_run or",
@@ -123,20 +123,20 @@ static void test_or(struct atomics *skel)
 
 	ASSERT_EQ(skel->data->or_noreturn_value, 0x111ull << 32, "or_noreturn_value");
 cleanup:
-	bpf_link__destroy(link);
+	close(link_fd);
 }
 
 static void test_xor(struct atomics *skel)
 {
 	int err, prog_fd;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 
-	link = bpf_program__attach(skel->progs.xor);
-	if (CHECK(IS_ERR(link), "attach(xor)", "err: %ld\n", PTR_ERR(link)))
+	link_fd = atomics__xor__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(xor)"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.xor);
+	prog_fd = skel->progs.xor.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	if (CHECK(err || retval, "test_run xor",
@@ -151,20 +151,20 @@ static void test_xor(struct atomics *skel)
 
 	ASSERT_EQ(skel->data->xor_noreturn_value, 0x101ull << 32, "xor_nxoreturn_value");
 cleanup:
-	bpf_link__destroy(link);
+	close(link_fd);
 }
 
 static void test_cmpxchg(struct atomics *skel)
 {
 	int err, prog_fd;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 
-	link = bpf_program__attach(skel->progs.cmpxchg);
-	if (CHECK(IS_ERR(link), "attach(cmpxchg)", "err: %ld\n", PTR_ERR(link)))
+	link_fd = atomics__cmpxchg__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(cmpxchg)"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.cmpxchg);
+	prog_fd = skel->progs.cmpxchg.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	if (CHECK(err || retval, "test_run add",
@@ -180,20 +180,20 @@ static void test_cmpxchg(struct atomics *skel)
 	ASSERT_EQ(skel->bss->cmpxchg32_result_succeed, 1, "cmpxchg_result_succeed");
 
 cleanup:
-	bpf_link__destroy(link);
+	close(link_fd);
 }
 
 static void test_xchg(struct atomics *skel)
 {
 	int err, prog_fd;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 
-	link = bpf_program__attach(skel->progs.xchg);
-	if (CHECK(IS_ERR(link), "attach(xchg)", "err: %ld\n", PTR_ERR(link)))
+	link_fd = atomics__xchg__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(xchg)"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.xchg);
+	prog_fd = skel->progs.xchg.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	if (CHECK(err || retval, "test_run add",
@@ -207,7 +207,7 @@ static void test_xchg(struct atomics *skel)
 	ASSERT_EQ(skel->bss->xchg32_result, 1, "xchg32_result");
 
 cleanup:
-	bpf_link__destroy(link);
+	close(link_fd);
 }
 
 void test_atomics(void)
diff --git a/tools/testing/selftests/bpf/prog_tests/attach_probe.c b/tools/testing/selftests/bpf/prog_tests/attach_probe.c
index 9dc4e3dfbcf3..ec11e20d2b92 100644
--- a/tools/testing/selftests/bpf/prog_tests/attach_probe.c
+++ b/tools/testing/selftests/bpf/prog_tests/attach_probe.c
@@ -85,16 +85,14 @@ void test_attach_probe(void)
 	kprobe_link = bpf_program__attach_kprobe(skel->progs.handle_kprobe,
 						 false /* retprobe */,
 						 SYS_NANOSLEEP_KPROBE_NAME);
-	if (CHECK(IS_ERR(kprobe_link), "attach_kprobe",
-		  "err %ld\n", PTR_ERR(kprobe_link)))
+	if (!ASSERT_OK_PTR(kprobe_link, "attach_kprobe"))
 		goto cleanup;
 	skel->links.handle_kprobe = kprobe_link;
 
 	kretprobe_link = bpf_program__attach_kprobe(skel->progs.handle_kretprobe,
 						    true /* retprobe */,
 						    SYS_NANOSLEEP_KPROBE_NAME);
-	if (CHECK(IS_ERR(kretprobe_link), "attach_kretprobe",
-		  "err %ld\n", PTR_ERR(kretprobe_link)))
+	if (!ASSERT_OK_PTR(kretprobe_link, "attach_kretprobe"))
 		goto cleanup;
 	skel->links.handle_kretprobe = kretprobe_link;
 
@@ -103,8 +101,7 @@ void test_attach_probe(void)
 						 0 /* self pid */,
 						 "/proc/self/exe",
 						 uprobe_offset);
-	if (CHECK(IS_ERR(uprobe_link), "attach_uprobe",
-		  "err %ld\n", PTR_ERR(uprobe_link)))
+	if (!ASSERT_OK_PTR(uprobe_link, "attach_uprobe"))
 		goto cleanup;
 	skel->links.handle_uprobe = uprobe_link;
 
@@ -113,8 +110,7 @@ void test_attach_probe(void)
 						    -1 /* any pid */,
 						    "/proc/self/exe",
 						    uprobe_offset);
-	if (CHECK(IS_ERR(uretprobe_link), "attach_uretprobe",
-		  "err %ld\n", PTR_ERR(uretprobe_link)))
+	if (!ASSERT_OK_PTR(uretprobe_link, "attach_uretprobe"))
 		goto cleanup;
 	skel->links.handle_uretprobe = uretprobe_link;
 
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
index 2d3590cfb5e1..1f1aade56504 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
@@ -47,7 +47,7 @@ static void do_dummy_read(struct bpf_program *prog)
 	int iter_fd, len;
 
 	link = bpf_program__attach_iter(prog, NULL);
-	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		return;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -201,7 +201,7 @@ static int do_btf_read(struct bpf_iter_task_btf *skel)
 	int ret = 0;
 
 	link = bpf_program__attach_iter(prog, NULL);
-	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		return ret;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -396,7 +396,7 @@ static void test_file_iter(void)
 		return;
 
 	link = bpf_program__attach_iter(skel1->progs.dump_task, NULL);
-	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	/* unlink this path if it exists. */
@@ -502,7 +502,7 @@ static void test_overflow(bool test_e2big_overflow, bool ret1)
 	skel->bss->map2_id = map_info.id;
 
 	link = bpf_program__attach_iter(skel->progs.dump_bpf_map, NULL);
-	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto free_map2;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -607,14 +607,12 @@ static void test_bpf_hash_map(void)
 	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"))
+	if (!ASSERT_ERR_PTR(link, "attach_iter"))
 		goto out;
 
 	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"))
+	if (!ASSERT_ERR_PTR(link, "attach_iter"))
 		goto out;
 
 	/* hashmap1 should be good, update map values here */
@@ -636,7 +634,7 @@ static void test_bpf_hash_map(void)
 
 	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"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -727,7 +725,7 @@ static void test_bpf_percpu_hash_map(void)
 	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"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -798,7 +796,7 @@ static void test_bpf_array_map(void)
 	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"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -894,7 +892,7 @@ static void test_bpf_percpu_array_map(void)
 	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"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -957,7 +955,7 @@ static void test_bpf_sk_storage_delete(void)
 	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.delete_bpf_sk_storage_map,
 					&opts);
-	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -1075,7 +1073,7 @@ static void test_bpf_sk_storage_map(void)
 	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"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -1128,7 +1126,7 @@ static void test_rdonly_buf_out_of_bound(void)
 	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"))
+	if (!ASSERT_ERR_PTR(link, "attach_iter"))
 		bpf_link__destroy(link);
 
 	bpf_iter_test_kern5__destroy(skel);
@@ -1186,8 +1184,7 @@ static void test_task_vma(void)
 	skel->links.proc_maps = bpf_program__attach_iter(
 		skel->progs.proc_maps, NULL);
 
-	if (CHECK(IS_ERR(skel->links.proc_maps), "bpf_program__attach_iter",
-		  "attach iterator failed\n")) {
+	if (!ASSERT_OK_PTR(skel->links.proc_maps, "bpf_program__attach_iter")) {
 		skel->links.proc_maps = NULL;
 		goto out;
 	}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
index e25917f04602..efe1e979affb 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -82,7 +82,7 @@ static void *server(void *arg)
 	      bytes, total_bytes, nr_sent, errno);
 
 done:
-	if (fd != -1)
+	if (fd >= 0)
 		close(fd);
 	if (err) {
 		WRITE_ONCE(stop, 1);
@@ -191,8 +191,7 @@ static void test_cubic(void)
 		return;
 
 	link = bpf_map__attach_struct_ops(cubic_skel->maps.cubic);
-	if (CHECK(IS_ERR(link), "bpf_map__attach_struct_ops", "err:%ld\n",
-		  PTR_ERR(link))) {
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
 		bpf_cubic__destroy(cubic_skel);
 		return;
 	}
@@ -213,8 +212,7 @@ static void test_dctcp(void)
 		return;
 
 	link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp);
-	if (CHECK(IS_ERR(link), "bpf_map__attach_struct_ops", "err:%ld\n",
-		  PTR_ERR(link))) {
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
 		bpf_dctcp__destroy(dctcp_skel);
 		return;
 	}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c
index 0457ae32b270..857e3f26086f 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf.c
@@ -3811,7 +3811,7 @@ static void do_test_raw(unsigned int test_num)
 			      always_log);
 	free(raw_btf);
 
-	err = ((btf_fd == -1) != test->btf_load_err);
+	err = ((btf_fd < 0) != test->btf_load_err);
 	if (CHECK(err, "btf_fd:%d test->btf_load_err:%u",
 		  btf_fd, test->btf_load_err) ||
 	    CHECK(test->err_str && !strstr(btf_log_buf, test->err_str),
@@ -3820,7 +3820,7 @@ static void do_test_raw(unsigned int test_num)
 		goto done;
 	}
 
-	if (err || btf_fd == -1)
+	if (err || btf_fd < 0)
 		goto done;
 
 	create_attr.name = test->map_name;
@@ -3834,16 +3834,16 @@ static void do_test_raw(unsigned int test_num)
 
 	map_fd = bpf_create_map_xattr(&create_attr);
 
-	err = ((map_fd == -1) != test->map_create_err);
+	err = ((map_fd < 0) != test->map_create_err);
 	CHECK(err, "map_fd:%d test->map_create_err:%u",
 	      map_fd, test->map_create_err);
 
 done:
 	if (*btf_log_buf && (err || always_log))
 		fprintf(stderr, "\n%s", btf_log_buf);
-	if (btf_fd != -1)
+	if (btf_fd >= 0)
 		close(btf_fd);
-	if (map_fd != -1)
+	if (map_fd >= 0)
 		close(map_fd);
 }
 
@@ -3941,7 +3941,7 @@ static int test_big_btf_info(unsigned int test_num)
 	btf_fd = bpf_load_btf(raw_btf, raw_btf_size,
 			      btf_log_buf, BTF_LOG_BUF_SIZE,
 			      always_log);
-	if (CHECK(btf_fd == -1, "errno:%d", errno)) {
+	if (CHECK(btf_fd < 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -3987,7 +3987,7 @@ done:
 	free(raw_btf);
 	free(user_btf);
 
-	if (btf_fd != -1)
+	if (btf_fd >= 0)
 		close(btf_fd);
 
 	return err;
@@ -4029,7 +4029,7 @@ static int test_btf_id(unsigned int test_num)
 	btf_fd[0] = bpf_load_btf(raw_btf, raw_btf_size,
 				 btf_log_buf, BTF_LOG_BUF_SIZE,
 				 always_log);
-	if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) {
+	if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -4043,7 +4043,7 @@ static int test_btf_id(unsigned int test_num)
 	}
 
 	btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id);
-	if (CHECK(btf_fd[1] == -1, "errno:%d", errno)) {
+	if (CHECK(btf_fd[1] < 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -4071,7 +4071,7 @@ static int test_btf_id(unsigned int test_num)
 	create_attr.btf_value_type_id = 2;
 
 	map_fd = bpf_create_map_xattr(&create_attr);
-	if (CHECK(map_fd == -1, "errno:%d", errno)) {
+	if (CHECK(map_fd < 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -4094,7 +4094,7 @@ static int test_btf_id(unsigned int test_num)
 
 	/* Test BTF ID is removed from the kernel */
 	btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id);
-	if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) {
+	if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -4105,7 +4105,7 @@ static int test_btf_id(unsigned int test_num)
 	close(map_fd);
 	map_fd = -1;
 	btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id);
-	if (CHECK(btf_fd[0] != -1, "BTF lingers")) {
+	if (CHECK(btf_fd[0] >= 0, "BTF lingers")) {
 		err = -1;
 		goto done;
 	}
@@ -4117,11 +4117,11 @@ done:
 		fprintf(stderr, "\n%s", btf_log_buf);
 
 	free(raw_btf);
-	if (map_fd != -1)
+	if (map_fd >= 0)
 		close(map_fd);
 	for (i = 0; i < 2; i++) {
 		free(user_btf[i]);
-		if (btf_fd[i] != -1)
+		if (btf_fd[i] >= 0)
 			close(btf_fd[i]);
 	}
 
@@ -4166,7 +4166,7 @@ static void do_test_get_info(unsigned int test_num)
 	btf_fd = bpf_load_btf(raw_btf, raw_btf_size,
 			      btf_log_buf, BTF_LOG_BUF_SIZE,
 			      always_log);
-	if (CHECK(btf_fd == -1, "errno:%d", errno)) {
+	if (CHECK(btf_fd <= 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -4212,7 +4212,7 @@ done:
 	free(raw_btf);
 	free(user_btf);
 
-	if (btf_fd != -1)
+	if (btf_fd >= 0)
 		close(btf_fd);
 }
 
@@ -4249,8 +4249,9 @@ static void do_test_file(unsigned int test_num)
 		return;
 
 	btf = btf__parse_elf(test->file, &btf_ext);
-	if (IS_ERR(btf)) {
-		if (PTR_ERR(btf) == -ENOENT) {
+	err = libbpf_get_error(btf);
+	if (err) {
+		if (err == -ENOENT) {
 			printf("%s:SKIP: No ELF %s found", __func__, BTF_ELF_SEC);
 			test__skip();
 			return;
@@ -4263,7 +4264,8 @@ static void do_test_file(unsigned int test_num)
 	btf_ext__free(btf_ext);
 
 	obj = bpf_object__open(test->file);
-	if (CHECK(IS_ERR(obj), "obj: %ld", PTR_ERR(obj)))
+	err = libbpf_get_error(obj);
+	if (CHECK(err, "obj: %d", err))
 		return;
 
 	prog = bpf_program__next(NULL, obj);
@@ -4298,7 +4300,7 @@ static void do_test_file(unsigned int test_num)
 	info_len = sizeof(struct bpf_prog_info);
 	err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
 
-	if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) {
+	if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) {
 		fprintf(stderr, "%s\n", btf_log_buf);
 		err = -1;
 		goto done;
@@ -4330,7 +4332,7 @@ static void do_test_file(unsigned int test_num)
 
 	err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
 
-	if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) {
+	if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) {
 		fprintf(stderr, "%s\n", btf_log_buf);
 		err = -1;
 		goto done;
@@ -4886,7 +4888,7 @@ static void do_test_pprint(int test_num)
 			      always_log);
 	free(raw_btf);
 
-	if (CHECK(btf_fd == -1, "errno:%d", errno)) {
+	if (CHECK(btf_fd < 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -4901,7 +4903,7 @@ static void do_test_pprint(int test_num)
 	create_attr.btf_value_type_id = test->value_type_id;
 
 	map_fd = bpf_create_map_xattr(&create_attr);
-	if (CHECK(map_fd == -1, "errno:%d", errno)) {
+	if (CHECK(map_fd < 0, "errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -4982,7 +4984,7 @@ static void do_test_pprint(int test_num)
 
 					err = check_line(expected_line, nexpected_line,
 							 sizeof(expected_line), line);
-					if (err == -1)
+					if (err < 0)
 						goto done;
 				}
 
@@ -4998,7 +5000,7 @@ static void do_test_pprint(int test_num)
 								  cpu, cmapv);
 			err = check_line(expected_line, nexpected_line,
 					 sizeof(expected_line), line);
-			if (err == -1)
+			if (err < 0)
 				goto done;
 
 			cmapv = cmapv + rounded_value_size;
@@ -5036,9 +5038,9 @@ done:
 		fprintf(stderr, "OK");
 	if (*btf_log_buf && (err || always_log))
 		fprintf(stderr, "\n%s", btf_log_buf);
-	if (btf_fd != -1)
+	if (btf_fd >= 0)
 		close(btf_fd);
-	if (map_fd != -1)
+	if (map_fd >= 0)
 		close(map_fd);
 	if (pin_file)
 		fclose(pin_file);
@@ -5950,7 +5952,7 @@ static int test_get_finfo(const struct prog_info_raw_test *test,
 	/* get necessary lens */
 	info_len = sizeof(struct bpf_prog_info);
 	err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
-	if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) {
+	if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) {
 		fprintf(stderr, "%s\n", btf_log_buf);
 		return -1;
 	}
@@ -5980,7 +5982,7 @@ static int test_get_finfo(const struct prog_info_raw_test *test,
 	info.func_info_rec_size = rec_size;
 	info.func_info = ptr_to_u64(func_info);
 	err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
-	if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) {
+	if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) {
 		fprintf(stderr, "%s\n", btf_log_buf);
 		err = -1;
 		goto done;
@@ -6044,7 +6046,7 @@ static int test_get_linfo(const struct prog_info_raw_test *test,
 
 	info_len = sizeof(struct bpf_prog_info);
 	err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
-	if (CHECK(err == -1, "err:%d errno:%d", err, errno)) {
+	if (CHECK(err < 0, "err:%d errno:%d", err, errno)) {
 		err = -1;
 		goto done;
 	}
@@ -6123,7 +6125,7 @@ static int test_get_linfo(const struct prog_info_raw_test *test,
 	 * Only recheck the info.*line_info* fields.
 	 * Other fields are not the concern of this test.
 	 */
-	if (CHECK(err == -1 ||
+	if (CHECK(err < 0 ||
 		  info.nr_line_info != cnt ||
 		  (jited_cnt && !info.jited_line_info) ||
 		  info.nr_jited_line_info != jited_cnt ||
@@ -6260,7 +6262,7 @@ static void do_test_info_raw(unsigned int test_num)
 			      always_log);
 	free(raw_btf);
 
-	if (CHECK(btf_fd == -1, "invalid btf_fd errno:%d", errno)) {
+	if (CHECK(btf_fd < 0, "invalid btf_fd errno:%d", errno)) {
 		err = -1;
 		goto done;
 	}
@@ -6273,7 +6275,8 @@ static void do_test_info_raw(unsigned int test_num)
 	patched_linfo = patch_name_tbd(test->line_info,
 				       test->str_sec, linfo_str_off,
 				       test->str_sec_size, &linfo_size);
-	if (IS_ERR(patched_linfo)) {
+	err = libbpf_get_error(patched_linfo);
+	if (err) {
 		fprintf(stderr, "error in creating raw bpf_line_info");
 		err = -1;
 		goto done;
@@ -6297,7 +6300,7 @@ static void do_test_info_raw(unsigned int test_num)
 	}
 
 	prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
-	err = ((prog_fd == -1) != test->expected_prog_load_failure);
+	err = ((prog_fd < 0) != test->expected_prog_load_failure);
 	if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d",
 		  prog_fd, test->expected_prog_load_failure, errno) ||
 	    CHECK(test->err_str && !strstr(btf_log_buf, test->err_str),
@@ -6306,7 +6309,7 @@ static void do_test_info_raw(unsigned int test_num)
 		goto done;
 	}
 
-	if (prog_fd == -1)
+	if (prog_fd < 0)
 		goto done;
 
 	err = test_get_finfo(test, prog_fd);
@@ -6323,12 +6326,12 @@ done:
 	if (*btf_log_buf && (err || always_log))
 		fprintf(stderr, "\n%s", btf_log_buf);
 
-	if (btf_fd != -1)
+	if (btf_fd >= 0)
 		close(btf_fd);
-	if (prog_fd != -1)
+	if (prog_fd >= 0)
 		close(prog_fd);
 
-	if (!IS_ERR(patched_linfo))
+	if (!libbpf_get_error(patched_linfo))
 		free(patched_linfo);
 }
 
@@ -6839,9 +6842,9 @@ static void do_test_dedup(unsigned int test_num)
 		return;
 
 	test_btf = btf__new((__u8 *)raw_btf, raw_btf_size);
+	err = libbpf_get_error(test_btf);
 	free(raw_btf);
-	if (CHECK(IS_ERR(test_btf), "invalid test_btf errno:%ld",
-		  PTR_ERR(test_btf))) {
+	if (CHECK(err, "invalid test_btf errno:%d", err)) {
 		err = -1;
 		goto done;
 	}
@@ -6853,9 +6856,9 @@ static void do_test_dedup(unsigned int test_num)
 	if (!raw_btf)
 		return;
 	expect_btf = btf__new((__u8 *)raw_btf, raw_btf_size);
+	err = libbpf_get_error(expect_btf);
 	free(raw_btf);
-	if (CHECK(IS_ERR(expect_btf), "invalid expect_btf errno:%ld",
-		  PTR_ERR(expect_btf))) {
+	if (CHECK(err, "invalid expect_btf errno:%d", err)) {
 		err = -1;
 		goto done;
 	}
@@ -6966,10 +6969,8 @@ static void do_test_dedup(unsigned int test_num)
 	}
 
 done:
-	if (!IS_ERR(test_btf))
-		btf__free(test_btf);
-	if (!IS_ERR(expect_btf))
-		btf__free(expect_btf);
+	btf__free(test_btf);
+	btf__free(expect_btf);
 }
 
 void test_btf(void)
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_dump.c b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
index 5e129dc2073c..1b90e684ff13 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_dump.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
@@ -32,8 +32,9 @@ static int btf_dump_all_types(const struct btf *btf,
 	int err = 0, id;
 
 	d = btf_dump__new(btf, NULL, opts, btf_dump_printf);
-	if (IS_ERR(d))
-		return PTR_ERR(d);
+	err = libbpf_get_error(d);
+	if (err)
+		return err;
 
 	for (id = 1; id <= type_cnt; id++) {
 		err = btf_dump__dump_type(d, id);
@@ -56,8 +57,7 @@ static int test_btf_dump_case(int n, struct btf_dump_test_case *t)
 	snprintf(test_file, sizeof(test_file), "%s.o", t->file);
 
 	btf = btf__parse_elf(test_file, NULL);
-	if (CHECK(IS_ERR(btf), "btf_parse_elf",
-	    "failed to load test BTF: %ld\n", PTR_ERR(btf))) {
+	if (!ASSERT_OK_PTR(btf, "btf_parse_elf")) {
 		err = -PTR_ERR(btf);
 		btf = NULL;
 		goto done;
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_write.c b/tools/testing/selftests/bpf/prog_tests/btf_write.c
index f36da15b134f..022c7d89d6f4 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_write.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_write.c
@@ -4,8 +4,6 @@
 #include <bpf/btf.h>
 #include "btf_helpers.h"
 
-static int duration = 0;
-
 void test_btf_write() {
 	const struct btf_var_secinfo *vi;
 	const struct btf_type *t;
@@ -16,7 +14,7 @@ void test_btf_write() {
 	int id, err, str_off;
 
 	btf = btf__new_empty();
-	if (CHECK(IS_ERR(btf), "new_empty", "failed: %ld\n", PTR_ERR(btf)))
+	if (!ASSERT_OK_PTR(btf, "new_empty"))
 		return;
 
 	str_off = btf__find_str(btf, "int");
diff --git a/tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c b/tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c
index 643dfa35419c..876be0ecb654 100644
--- a/tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c
+++ b/tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c
@@ -102,8 +102,7 @@ static void test_egress_only(int parent_cgroup_fd, int child_cgroup_fd)
 	 */
 	parent_link = bpf_program__attach_cgroup(obj->progs.egress,
 						 parent_cgroup_fd);
-	if (CHECK(IS_ERR(parent_link), "parent-cg-attach",
-		  "err %ld", PTR_ERR(parent_link)))
+	if (!ASSERT_OK_PTR(parent_link, "parent-cg-attach"))
 		goto close_bpf_object;
 	err = connect_send(CHILD_CGROUP);
 	if (CHECK(err, "first-connect-send", "errno %d", errno))
@@ -126,8 +125,7 @@ static void test_egress_only(int parent_cgroup_fd, int child_cgroup_fd)
 	 */
 	child_link = bpf_program__attach_cgroup(obj->progs.egress,
 						child_cgroup_fd);
-	if (CHECK(IS_ERR(child_link), "child-cg-attach",
-		  "err %ld", PTR_ERR(child_link)))
+	if (!ASSERT_OK_PTR(child_link, "child-cg-attach"))
 		goto close_bpf_object;
 	err = connect_send(CHILD_CGROUP);
 	if (CHECK(err, "second-connect-send", "errno %d", errno))
@@ -147,10 +145,8 @@ static void test_egress_only(int parent_cgroup_fd, int child_cgroup_fd)
 		goto close_bpf_object;
 
 close_bpf_object:
-	if (!IS_ERR(parent_link))
-		bpf_link__destroy(parent_link);
-	if (!IS_ERR(child_link))
-		bpf_link__destroy(child_link);
+	bpf_link__destroy(parent_link);
+	bpf_link__destroy(child_link);
 
 	cg_storage_multi_egress_only__destroy(obj);
 }
@@ -176,18 +172,15 @@ static void test_isolated(int parent_cgroup_fd, int child_cgroup_fd)
 	 */
 	parent_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
 							 parent_cgroup_fd);
-	if (CHECK(IS_ERR(parent_egress1_link), "parent-egress1-cg-attach",
-		  "err %ld", PTR_ERR(parent_egress1_link)))
+	if (!ASSERT_OK_PTR(parent_egress1_link, "parent-egress1-cg-attach"))
 		goto close_bpf_object;
 	parent_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
 							 parent_cgroup_fd);
-	if (CHECK(IS_ERR(parent_egress2_link), "parent-egress2-cg-attach",
-		  "err %ld", PTR_ERR(parent_egress2_link)))
+	if (!ASSERT_OK_PTR(parent_egress2_link, "parent-egress2-cg-attach"))
 		goto close_bpf_object;
 	parent_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
 							 parent_cgroup_fd);
-	if (CHECK(IS_ERR(parent_ingress_link), "parent-ingress-cg-attach",
-		  "err %ld", PTR_ERR(parent_ingress_link)))
+	if (!ASSERT_OK_PTR(parent_ingress_link, "parent-ingress-cg-attach"))
 		goto close_bpf_object;
 	err = connect_send(CHILD_CGROUP);
 	if (CHECK(err, "first-connect-send", "errno %d", errno))
@@ -221,18 +214,15 @@ static void test_isolated(int parent_cgroup_fd, int child_cgroup_fd)
 	 */
 	child_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
 							child_cgroup_fd);
-	if (CHECK(IS_ERR(child_egress1_link), "child-egress1-cg-attach",
-		  "err %ld", PTR_ERR(child_egress1_link)))
+	if (!ASSERT_OK_PTR(child_egress1_link, "child-egress1-cg-attach"))
 		goto close_bpf_object;
 	child_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
 							child_cgroup_fd);
-	if (CHECK(IS_ERR(child_egress2_link), "child-egress2-cg-attach",
-		  "err %ld", PTR_ERR(child_egress2_link)))
+	if (!ASSERT_OK_PTR(child_egress2_link, "child-egress2-cg-attach"))
 		goto close_bpf_object;
 	child_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
 							child_cgroup_fd);
-	if (CHECK(IS_ERR(child_ingress_link), "child-ingress-cg-attach",
-		  "err %ld", PTR_ERR(child_ingress_link)))
+	if (!ASSERT_OK_PTR(child_ingress_link, "child-ingress-cg-attach"))
 		goto close_bpf_object;
 	err = connect_send(CHILD_CGROUP);
 	if (CHECK(err, "second-connect-send", "errno %d", errno))
@@ -264,18 +254,12 @@ static void test_isolated(int parent_cgroup_fd, int child_cgroup_fd)
 		goto close_bpf_object;
 
 close_bpf_object:
-	if (!IS_ERR(parent_egress1_link))
-		bpf_link__destroy(parent_egress1_link);
-	if (!IS_ERR(parent_egress2_link))
-		bpf_link__destroy(parent_egress2_link);
-	if (!IS_ERR(parent_ingress_link))
-		bpf_link__destroy(parent_ingress_link);
-	if (!IS_ERR(child_egress1_link))
-		bpf_link__destroy(child_egress1_link);
-	if (!IS_ERR(child_egress2_link))
-		bpf_link__destroy(child_egress2_link);
-	if (!IS_ERR(child_ingress_link))
-		bpf_link__destroy(child_ingress_link);
+	bpf_link__destroy(parent_egress1_link);
+	bpf_link__destroy(parent_egress2_link);
+	bpf_link__destroy(parent_ingress_link);
+	bpf_link__destroy(child_egress1_link);
+	bpf_link__destroy(child_egress2_link);
+	bpf_link__destroy(child_ingress_link);
 
 	cg_storage_multi_isolated__destroy(obj);
 }
@@ -301,18 +285,15 @@ static void test_shared(int parent_cgroup_fd, int child_cgroup_fd)
 	 */
 	parent_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
 							 parent_cgroup_fd);
-	if (CHECK(IS_ERR(parent_egress1_link), "parent-egress1-cg-attach",
-		  "err %ld", PTR_ERR(parent_egress1_link)))
+	if (!ASSERT_OK_PTR(parent_egress1_link, "parent-egress1-cg-attach"))
 		goto close_bpf_object;
 	parent_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
 							 parent_cgroup_fd);
-	if (CHECK(IS_ERR(parent_egress2_link), "parent-egress2-cg-attach",
-		  "err %ld", PTR_ERR(parent_egress2_link)))
+	if (!ASSERT_OK_PTR(parent_egress2_link, "parent-egress2-cg-attach"))
 		goto close_bpf_object;
 	parent_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
 							 parent_cgroup_fd);
-	if (CHECK(IS_ERR(parent_ingress_link), "parent-ingress-cg-attach",
-		  "err %ld", PTR_ERR(parent_ingress_link)))
+	if (!ASSERT_OK_PTR(parent_ingress_link, "parent-ingress-cg-attach"))
 		goto close_bpf_object;
 	err = connect_send(CHILD_CGROUP);
 	if (CHECK(err, "first-connect-send", "errno %d", errno))
@@ -338,18 +319,15 @@ static void test_shared(int parent_cgroup_fd, int child_cgroup_fd)
 	 */
 	child_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
 							child_cgroup_fd);
-	if (CHECK(IS_ERR(child_egress1_link), "child-egress1-cg-attach",
-		  "err %ld", PTR_ERR(child_egress1_link)))
+	if (!ASSERT_OK_PTR(child_egress1_link, "child-egress1-cg-attach"))
 		goto close_bpf_object;
 	child_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
 							child_cgroup_fd);
-	if (CHECK(IS_ERR(child_egress2_link), "child-egress2-cg-attach",
-		  "err %ld", PTR_ERR(child_egress2_link)))
+	if (!ASSERT_OK_PTR(child_egress2_link, "child-egress2-cg-attach"))
 		goto close_bpf_object;
 	child_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
 							child_cgroup_fd);
-	if (CHECK(IS_ERR(child_ingress_link), "child-ingress-cg-attach",
-		  "err %ld", PTR_ERR(child_ingress_link)))
+	if (!ASSERT_OK_PTR(child_ingress_link, "child-ingress-cg-attach"))
 		goto close_bpf_object;
 	err = connect_send(CHILD_CGROUP);
 	if (CHECK(err, "second-connect-send", "errno %d", errno))
@@ -375,18 +353,12 @@ static void test_shared(int parent_cgroup_fd, int child_cgroup_fd)
 		goto close_bpf_object;
 
 close_bpf_object:
-	if (!IS_ERR(parent_egress1_link))
-		bpf_link__destroy(parent_egress1_link);
-	if (!IS_ERR(parent_egress2_link))
-		bpf_link__destroy(parent_egress2_link);
-	if (!IS_ERR(parent_ingress_link))
-		bpf_link__destroy(parent_ingress_link);
-	if (!IS_ERR(child_egress1_link))
-		bpf_link__destroy(child_egress1_link);
-	if (!IS_ERR(child_egress2_link))
-		bpf_link__destroy(child_egress2_link);
-	if (!IS_ERR(child_ingress_link))
-		bpf_link__destroy(child_ingress_link);
+	bpf_link__destroy(parent_egress1_link);
+	bpf_link__destroy(parent_egress2_link);
+	bpf_link__destroy(parent_ingress_link);
+	bpf_link__destroy(child_egress1_link);
+	bpf_link__destroy(child_egress2_link);
+	bpf_link__destroy(child_ingress_link);
 
 	cg_storage_multi_shared__destroy(obj);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c
index 0a1fc9816cef..20bb8831dda6 100644
--- a/tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c
@@ -167,7 +167,7 @@ void test_cgroup_attach_multi(void)
 	prog_cnt = 2;
 	CHECK_FAIL(bpf_prog_query(cg5, BPF_CGROUP_INET_EGRESS,
 				  BPF_F_QUERY_EFFECTIVE, &attach_flags,
-				  prog_ids, &prog_cnt) != -1);
+				  prog_ids, &prog_cnt) >= 0);
 	CHECK_FAIL(errno != ENOSPC);
 	CHECK_FAIL(prog_cnt != 4);
 	/* check that prog_ids are returned even when buffer is too small */
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_link.c b/tools/testing/selftests/bpf/prog_tests/cgroup_link.c
index 736796e56ed1..9091524131d6 100644
--- a/tools/testing/selftests/bpf/prog_tests/cgroup_link.c
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_link.c
@@ -65,8 +65,7 @@ void test_cgroup_link(void)
 	for (i = 0; i < cg_nr; i++) {
 		links[i] = bpf_program__attach_cgroup(skel->progs.egress,
 						      cgs[i].fd);
-		if (CHECK(IS_ERR(links[i]), "cg_attach", "i: %d, err: %ld\n",
-				 i, PTR_ERR(links[i])))
+		if (!ASSERT_OK_PTR(links[i], "cg_attach"))
 			goto cleanup;
 	}
 
@@ -121,8 +120,7 @@ void test_cgroup_link(void)
 
 	links[last_cg] = bpf_program__attach_cgroup(skel->progs.egress,
 						    cgs[last_cg].fd);
-	if (CHECK(IS_ERR(links[last_cg]), "cg_attach", "err: %ld\n",
-		  PTR_ERR(links[last_cg])))
+	if (!ASSERT_OK_PTR(links[last_cg], "cg_attach"))
 		goto cleanup;
 
 	ping_and_check(cg_nr + 1, 0);
@@ -147,7 +145,7 @@ void test_cgroup_link(void)
 	/* attempt to mix in with multi-attach bpf_link */
 	tmp_link = bpf_program__attach_cgroup(skel->progs.egress,
 					      cgs[last_cg].fd);
-	if (CHECK(!IS_ERR(tmp_link), "cg_attach_fail", "unexpected success!\n")) {
+	if (!ASSERT_ERR_PTR(tmp_link, "cg_attach_fail")) {
 		bpf_link__destroy(tmp_link);
 		goto cleanup;
 	}
@@ -165,8 +163,7 @@ void test_cgroup_link(void)
 	/* attach back link-based one */
 	links[last_cg] = bpf_program__attach_cgroup(skel->progs.egress,
 						    cgs[last_cg].fd);
-	if (CHECK(IS_ERR(links[last_cg]), "cg_attach", "err: %ld\n",
-		  PTR_ERR(links[last_cg])))
+	if (!ASSERT_OK_PTR(links[last_cg], "cg_attach"))
 		goto cleanup;
 
 	ping_and_check(cg_nr, 0);
@@ -249,8 +246,7 @@ cleanup:
 				 BPF_CGROUP_INET_EGRESS);
 
 	for (i = 0; i < cg_nr; i++) {
-		if (!IS_ERR(links[i]))
-			bpf_link__destroy(links[i]);
+		bpf_link__destroy(links[i]);
 	}
 	test_cgroup_link__destroy(skel);
 
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_skb_sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_sk_lookup.c
index 464edc1c1708..b9dc4ec655b5 100644
--- a/tools/testing/selftests/bpf/prog_tests/cgroup_skb_sk_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_sk_lookup.c
@@ -60,7 +60,7 @@ static void run_cgroup_bpf_test(const char *cg_path, int out_sk)
 		goto cleanup;
 
 	link = bpf_program__attach_cgroup(skel->progs.ingress_lookup, cgfd);
-	if (CHECK(IS_ERR(link), "cgroup_attach", "err: %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "cgroup_attach"))
 		goto cleanup;
 
 	run_lookup_test(&skel->bss->g_serv_port, out_sk);
diff --git a/tools/testing/selftests/bpf/prog_tests/check_mtu.c b/tools/testing/selftests/bpf/prog_tests/check_mtu.c
index b62a39315336..012068f33a0a 100644
--- a/tools/testing/selftests/bpf/prog_tests/check_mtu.c
+++ b/tools/testing/selftests/bpf/prog_tests/check_mtu.c
@@ -53,7 +53,7 @@ static void test_check_mtu_xdp_attach(void)
 	prog = skel->progs.xdp_use_helper_basic;
 
 	link = bpf_program__attach_xdp(prog, IFINDEX_LO);
-	if (CHECK(IS_ERR(link), "link_attach", "failed: %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "link_attach"))
 		goto out;
 	skel->links.xdp_use_helper_basic = link;
 
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
index 607710826dca..d02e064c535f 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -369,8 +369,7 @@ static int setup_type_id_case_local(struct core_reloc_test_case *test)
 	const char *name;
 	int i;
 
-	if (CHECK(IS_ERR(local_btf), "local_btf", "failed: %ld\n", PTR_ERR(local_btf)) ||
-	    CHECK(IS_ERR(targ_btf), "targ_btf", "failed: %ld\n", PTR_ERR(targ_btf))) {
+	if (!ASSERT_OK_PTR(local_btf, "local_btf") || !ASSERT_OK_PTR(targ_btf, "targ_btf")) {
 		btf__free(local_btf);
 		btf__free(targ_btf);
 		return -EINVAL;
@@ -848,8 +847,7 @@ void test_core_reloc(void)
 		}
 
 		obj = bpf_object__open_file(test_case->bpf_obj_file, NULL);
-		if (CHECK(IS_ERR(obj), "obj_open", "failed to open '%s': %ld\n",
-			  test_case->bpf_obj_file, PTR_ERR(obj)))
+		if (!ASSERT_OK_PTR(obj, "obj_open"))
 			continue;
 
 		probe_name = "raw_tracepoint/sys_enter";
@@ -899,8 +897,7 @@ void test_core_reloc(void)
 		data->my_pid_tgid = my_pid_tgid;
 
 		link = bpf_program__attach_raw_tracepoint(prog, tp_name);
-		if (CHECK(IS_ERR(link), "attach_raw_tp", "err %ld\n",
-			  PTR_ERR(link)))
+		if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
 			goto cleanup;
 
 		/* trigger test run */
@@ -941,10 +938,8 @@ cleanup:
 			CHECK_FAIL(munmap(mmap_data, mmap_sz));
 			mmap_data = NULL;
 		}
-		if (!IS_ERR_OR_NULL(link)) {
-			bpf_link__destroy(link);
-			link = NULL;
-		}
+		bpf_link__destroy(link);
+		link = NULL;
 		bpf_object__close(obj);
 	}
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c b/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
index 109d0345a2be..91154c2ba256 100644
--- a/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
+++ b/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
@@ -1,8 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2019 Facebook */
 #include <test_progs.h>
-#include "fentry_test.skel.h"
-#include "fexit_test.skel.h"
+#include "fentry_test.lskel.h"
+#include "fexit_test.lskel.h"
 
 void test_fentry_fexit(void)
 {
@@ -26,7 +26,7 @@ void test_fentry_fexit(void)
 	if (CHECK(err, "fexit_attach", "fexit attach failed: %d\n", err))
 		goto close_prog;
 
-	prog_fd = bpf_program__fd(fexit_skel->progs.test1);
+	prog_fd = fexit_skel->progs.test1.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	CHECK(err || retval, "ipv6",
diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_test.c b/tools/testing/selftests/bpf/prog_tests/fentry_test.c
index 7cb111b11995..174c89e7456e 100644
--- a/tools/testing/selftests/bpf/prog_tests/fentry_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/fentry_test.c
@@ -1,13 +1,13 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2019 Facebook */
 #include <test_progs.h>
-#include "fentry_test.skel.h"
+#include "fentry_test.lskel.h"
 
 static int fentry_test(struct fentry_test *fentry_skel)
 {
 	int err, prog_fd, i;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 	__u64 *result;
 
 	err = fentry_test__attach(fentry_skel);
@@ -15,11 +15,11 @@ static int fentry_test(struct fentry_test *fentry_skel)
 		return err;
 
 	/* Check that already linked program can't be attached again. */
-	link = bpf_program__attach(fentry_skel->progs.test1);
-	if (!ASSERT_ERR_PTR(link, "fentry_attach_link"))
+	link_fd = fentry_test__test1__attach(fentry_skel);
+	if (!ASSERT_LT(link_fd, 0, "fentry_attach_link"))
 		return -1;
 
-	prog_fd = bpf_program__fd(fentry_skel->progs.test1);
+	prog_fd = fentry_skel->progs.test1.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	ASSERT_OK(err, "test_run");
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
index 63990842d20f..73b4c76e6b86 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
@@ -146,10 +146,8 @@ static void test_fexit_bpf2bpf_common(const char *obj_file,
 
 close_prog:
 	for (i = 0; i < prog_cnt; i++)
-		if (!IS_ERR_OR_NULL(link[i]))
-			bpf_link__destroy(link[i]);
-	if (!IS_ERR_OR_NULL(obj))
-		bpf_object__close(obj);
+		bpf_link__destroy(link[i]);
+	bpf_object__close(obj);
 	bpf_object__close(tgt_obj);
 	free(link);
 	free(prog);
@@ -231,7 +229,7 @@ static int test_second_attach(struct bpf_object *obj)
 		return err;
 
 	link = bpf_program__attach_freplace(prog, tgt_fd, tgt_name);
-	if (CHECK(IS_ERR(link), "second_link", "failed to attach second link prog_fd %d tgt_fd %d\n", bpf_program__fd(prog), tgt_fd))
+	if (!ASSERT_OK_PTR(link, "second_link"))
 		goto out;
 
 	err = bpf_prog_test_run(tgt_fd, 1, &pkt_v6, sizeof(pkt_v6),
@@ -283,9 +281,7 @@ static void test_fmod_ret_freplace(void)
 	opts.attach_prog_fd = pkt_fd;
 
 	freplace_obj = bpf_object__open_file(freplace_name, &opts);
-	if (CHECK(IS_ERR_OR_NULL(freplace_obj), "freplace_obj_open",
-		  "failed to open %s: %ld\n", freplace_name,
-		  PTR_ERR(freplace_obj)))
+	if (!ASSERT_OK_PTR(freplace_obj, "freplace_obj_open"))
 		goto out;
 
 	err = bpf_object__load(freplace_obj);
@@ -294,14 +290,12 @@ static void test_fmod_ret_freplace(void)
 
 	prog = bpf_program__next(NULL, freplace_obj);
 	freplace_link = bpf_program__attach_trace(prog);
-	if (CHECK(IS_ERR(freplace_link), "freplace_attach_trace", "failed to link\n"))
+	if (!ASSERT_OK_PTR(freplace_link, "freplace_attach_trace"))
 		goto out;
 
 	opts.attach_prog_fd = bpf_program__fd(prog);
 	fmod_obj = bpf_object__open_file(fmod_ret_name, &opts);
-	if (CHECK(IS_ERR_OR_NULL(fmod_obj), "fmod_obj_open",
-		  "failed to open %s: %ld\n", fmod_ret_name,
-		  PTR_ERR(fmod_obj)))
+	if (!ASSERT_OK_PTR(fmod_obj, "fmod_obj_open"))
 		goto out;
 
 	err = bpf_object__load(fmod_obj);
@@ -350,9 +344,7 @@ static void test_obj_load_failure_common(const char *obj_file,
 			   );
 
 	obj = bpf_object__open_file(obj_file, &opts);
-	if (CHECK(IS_ERR_OR_NULL(obj), "obj_open",
-		  "failed to open %s: %ld\n", obj_file,
-		  PTR_ERR(obj)))
+	if (!ASSERT_OK_PTR(obj, "obj_open"))
 		goto close_prog;
 
 	/* It should fail to load the program */
@@ -361,8 +353,7 @@ static void test_obj_load_failure_common(const char *obj_file,
 		goto close_prog;
 
 close_prog:
-	if (!IS_ERR_OR_NULL(obj))
-		bpf_object__close(obj);
+	bpf_object__close(obj);
 	bpf_object__close(pkt_obj);
 }
 
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c b/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
index ccc7e8a34ab6..4e7f4b42ea29 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
@@ -6,7 +6,7 @@
 #include <time.h>
 #include <sys/mman.h>
 #include <sys/syscall.h>
-#include "fexit_sleep.skel.h"
+#include "fexit_sleep.lskel.h"
 
 static int do_sleep(void *skel)
 {
@@ -58,8 +58,8 @@ void test_fexit_sleep(void)
 	 * waiting for percpu_ref_kill to confirm). The other one
 	 * will be freed quickly.
 	 */
-	close(bpf_program__fd(fexit_skel->progs.nanosleep_fentry));
-	close(bpf_program__fd(fexit_skel->progs.nanosleep_fexit));
+	close(fexit_skel->progs.nanosleep_fentry.prog_fd);
+	close(fexit_skel->progs.nanosleep_fexit.prog_fd);
 	fexit_sleep__detach(fexit_skel);
 
 	/* kill the thread to unwind sys_nanosleep stack through the trampoline */
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_test.c b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
index 6792e41f7f69..af3dba726701 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
@@ -1,13 +1,13 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2019 Facebook */
 #include <test_progs.h>
-#include "fexit_test.skel.h"
+#include "fexit_test.lskel.h"
 
 static int fexit_test(struct fexit_test *fexit_skel)
 {
 	int err, prog_fd, i;
 	__u32 duration = 0, retval;
-	struct bpf_link *link;
+	int link_fd;
 	__u64 *result;
 
 	err = fexit_test__attach(fexit_skel);
@@ -15,11 +15,11 @@ static int fexit_test(struct fexit_test *fexit_skel)
 		return err;
 
 	/* Check that already linked program can't be attached again. */
-	link = bpf_program__attach(fexit_skel->progs.test1);
-	if (!ASSERT_ERR_PTR(link, "fexit_attach_link"))
+	link_fd = fexit_test__test1__attach(fexit_skel);
+	if (!ASSERT_LT(link_fd, 0, "fexit_attach_link"))
 		return -1;
 
-	prog_fd = bpf_program__fd(fexit_skel->progs.test1);
+	prog_fd = fexit_skel->progs.test1.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
 				NULL, NULL, &retval, &duration);
 	ASSERT_OK(err, "test_run");
diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
index cd6dc80edf18..225714f71ac6 100644
--- a/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
+++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
@@ -541,7 +541,7 @@ static void test_skb_less_link_create(struct bpf_flow *skel, int tap_fd)
 		return;
 
 	link = bpf_program__attach_netns(skel->progs._dissect, net_fd);
-	if (CHECK(IS_ERR(link), "attach_netns", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_netns"))
 		goto out_close;
 
 	run_tests_skb_less(tap_fd, skel->maps.last_dissection);
diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector_reattach.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector_reattach.c
index 172c586b6996..3931ede5c534 100644
--- a/tools/testing/selftests/bpf/prog_tests/flow_dissector_reattach.c
+++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector_reattach.c
@@ -134,9 +134,9 @@ static void test_link_create_link_create(int netns, int prog1, int prog2)
 	/* Expect failure creating link when another link exists */
 	errno = 0;
 	link2 = bpf_link_create(prog2, netns, BPF_FLOW_DISSECTOR, &opts);
-	if (CHECK_FAIL(link2 != -1 || errno != E2BIG))
+	if (CHECK_FAIL(link2 >= 0 || errno != E2BIG))
 		perror("bpf_prog_attach(prog2) expected E2BIG");
-	if (link2 != -1)
+	if (link2 >= 0)
 		close(link2);
 	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
 
@@ -159,9 +159,9 @@ static void test_prog_attach_link_create(int netns, int prog1, int prog2)
 	/* Expect failure creating link when prog attached */
 	errno = 0;
 	link = bpf_link_create(prog2, netns, BPF_FLOW_DISSECTOR, &opts);
-	if (CHECK_FAIL(link != -1 || errno != EEXIST))
+	if (CHECK_FAIL(link >= 0 || errno != EEXIST))
 		perror("bpf_link_create(prog2) expected EEXIST");
-	if (link != -1)
+	if (link >= 0)
 		close(link);
 	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
 
@@ -623,7 +623,7 @@ static void run_tests(int netns)
 	}
 out_close:
 	for (i = 0; i < ARRAY_SIZE(progs); i++) {
-		if (progs[i] != -1)
+		if (progs[i] >= 0)
 			CHECK_FAIL(close(progs[i]));
 	}
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
index 925722217edf..522237aa4470 100644
--- a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
+++ b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
@@ -121,12 +121,12 @@ void test_get_stack_raw_tp(void)
 		goto close_prog;
 
 	link = bpf_program__attach_raw_tracepoint(prog, "sys_enter");
-	if (CHECK(IS_ERR(link), "attach_raw_tp", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
 		goto close_prog;
 
 	pb_opts.sample_cb = get_stack_print_output;
 	pb = perf_buffer__new(bpf_map__fd(map), 8, &pb_opts);
-	if (CHECK(IS_ERR(pb), "perf_buf__new", "err %ld\n", PTR_ERR(pb)))
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
 		goto close_prog;
 
 	/* trigger some syscall action */
@@ -141,9 +141,7 @@ void test_get_stack_raw_tp(void)
 	}
 
 close_prog:
-	if (!IS_ERR_OR_NULL(link))
-		bpf_link__destroy(link);
-	if (!IS_ERR_OR_NULL(pb))
-		perf_buffer__free(pb);
+	bpf_link__destroy(link);
+	perf_buffer__free(pb);
 	bpf_object__close(obj);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/get_stackid_cannot_attach.c b/tools/testing/selftests/bpf/prog_tests/get_stackid_cannot_attach.c
index d884b2ed5bc5..8d5a6023a1bb 100644
--- a/tools/testing/selftests/bpf/prog_tests/get_stackid_cannot_attach.c
+++ b/tools/testing/selftests/bpf/prog_tests/get_stackid_cannot_attach.c
@@ -48,8 +48,7 @@ void test_get_stackid_cannot_attach(void)
 
 	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
 							   pmu_fd);
-	CHECK(!IS_ERR(skel->links.oncpu), "attach_perf_event_no_callchain",
-	      "should have failed\n");
+	ASSERT_ERR_PTR(skel->links.oncpu, "attach_perf_event_no_callchain");
 	close(pmu_fd);
 
 	/* add PERF_SAMPLE_CALLCHAIN, attach should succeed */
@@ -65,8 +64,7 @@ void test_get_stackid_cannot_attach(void)
 
 	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
 							   pmu_fd);
-	CHECK(IS_ERR(skel->links.oncpu), "attach_perf_event_callchain",
-	      "err: %ld\n", PTR_ERR(skel->links.oncpu));
+	ASSERT_OK_PTR(skel->links.oncpu, "attach_perf_event_callchain");
 	close(pmu_fd);
 
 	/* add exclude_callchain_kernel, attach should fail */
@@ -82,8 +80,7 @@ void test_get_stackid_cannot_attach(void)
 
 	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
 							   pmu_fd);
-	CHECK(!IS_ERR(skel->links.oncpu), "attach_perf_event_exclude_callchain_kernel",
-	      "should have failed\n");
+	ASSERT_ERR_PTR(skel->links.oncpu, "attach_perf_event_exclude_callchain_kernel");
 	close(pmu_fd);
 
 cleanup:
diff --git a/tools/testing/selftests/bpf/prog_tests/hashmap.c b/tools/testing/selftests/bpf/prog_tests/hashmap.c
index 428d488830c6..4747ab18f97f 100644
--- a/tools/testing/selftests/bpf/prog_tests/hashmap.c
+++ b/tools/testing/selftests/bpf/prog_tests/hashmap.c
@@ -48,8 +48,7 @@ static void test_hashmap_generic(void)
 	struct hashmap *map;
 
 	map = hashmap__new(hash_fn, equal_fn, NULL);
-	if (CHECK(IS_ERR(map), "hashmap__new",
-		  "failed to create map: %ld\n", PTR_ERR(map)))
+	if (!ASSERT_OK_PTR(map, "hashmap__new"))
 		return;
 
 	for (i = 0; i < ELEM_CNT; i++) {
@@ -267,8 +266,7 @@ static void test_hashmap_multimap(void)
 
 	/* force collisions */
 	map = hashmap__new(collision_hash_fn, equal_fn, NULL);
-	if (CHECK(IS_ERR(map), "hashmap__new",
-		  "failed to create map: %ld\n", PTR_ERR(map)))
+	if (!ASSERT_OK_PTR(map, "hashmap__new"))
 		return;
 
 	/* set up multimap:
@@ -339,8 +337,7 @@ static void test_hashmap_empty()
 
 	/* force collisions */
 	map = hashmap__new(hash_fn, equal_fn, NULL);
-	if (CHECK(IS_ERR(map), "hashmap__new",
-		  "failed to create map: %ld\n", PTR_ERR(map)))
+	if (!ASSERT_OK_PTR(map, "hashmap__new"))
 		goto cleanup;
 
 	if (CHECK(hashmap__size(map) != 0, "hashmap__size",
diff --git a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c
index d65107919998..ddfb6bf97152 100644
--- a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c
+++ b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c
@@ -97,15 +97,13 @@ void test_kfree_skb(void)
 		goto close_prog;
 
 	link = bpf_program__attach_raw_tracepoint(prog, NULL);
-	if (CHECK(IS_ERR(link), "attach_raw_tp", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
 		goto close_prog;
 	link_fentry = bpf_program__attach_trace(fentry);
-	if (CHECK(IS_ERR(link_fentry), "attach fentry", "err %ld\n",
-		  PTR_ERR(link_fentry)))
+	if (!ASSERT_OK_PTR(link_fentry, "attach fentry"))
 		goto close_prog;
 	link_fexit = bpf_program__attach_trace(fexit);
-	if (CHECK(IS_ERR(link_fexit), "attach fexit", "err %ld\n",
-		  PTR_ERR(link_fexit)))
+	if (!ASSERT_OK_PTR(link_fexit, "attach fexit"))
 		goto close_prog;
 
 	perf_buf_map = bpf_object__find_map_by_name(obj2, "perf_buf_map");
@@ -116,7 +114,7 @@ void test_kfree_skb(void)
 	pb_opts.sample_cb = on_sample;
 	pb_opts.ctx = &passed;
 	pb = perf_buffer__new(bpf_map__fd(perf_buf_map), 1, &pb_opts);
-	if (CHECK(IS_ERR(pb), "perf_buf__new", "err %ld\n", PTR_ERR(pb)))
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
 		goto close_prog;
 
 	memcpy(skb.cb, &cb, sizeof(cb));
@@ -144,12 +142,9 @@ void test_kfree_skb(void)
 	CHECK_FAIL(!test_ok[0] || !test_ok[1]);
 close_prog:
 	perf_buffer__free(pb);
-	if (!IS_ERR_OR_NULL(link))
-		bpf_link__destroy(link);
-	if (!IS_ERR_OR_NULL(link_fentry))
-		bpf_link__destroy(link_fentry);
-	if (!IS_ERR_OR_NULL(link_fexit))
-		bpf_link__destroy(link_fexit);
+	bpf_link__destroy(link);
+	bpf_link__destroy(link_fentry);
+	bpf_link__destroy(link_fexit);
 	bpf_object__close(obj);
 	bpf_object__close(obj2);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/kfunc_call.c b/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
index 7fc0951ee75f..30a7b9b837bf 100644
--- a/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
+++ b/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
@@ -2,7 +2,7 @@
 /* Copyright (c) 2021 Facebook */
 #include <test_progs.h>
 #include <network_helpers.h>
-#include "kfunc_call_test.skel.h"
+#include "kfunc_call_test.lskel.h"
 #include "kfunc_call_test_subprog.skel.h"
 
 static void test_main(void)
@@ -14,13 +14,13 @@ static void test_main(void)
 	if (!ASSERT_OK_PTR(skel, "skel"))
 		return;
 
-	prog_fd = bpf_program__fd(skel->progs.kfunc_call_test1);
+	prog_fd = skel->progs.kfunc_call_test1.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
 				NULL, NULL, (__u32 *)&retval, NULL);
 	ASSERT_OK(err, "bpf_prog_test_run(test1)");
 	ASSERT_EQ(retval, 12, "test1-retval");
 
-	prog_fd = bpf_program__fd(skel->progs.kfunc_call_test2);
+	prog_fd = skel->progs.kfunc_call_test2.prog_fd;
 	err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
 				NULL, NULL, (__u32 *)&retval, NULL);
 	ASSERT_OK(err, "bpf_prog_test_run(test2)");
diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c b/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c
index b58b775d19f3..67bebd324147 100644
--- a/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c
@@ -87,8 +87,7 @@ void test_ksyms_btf(void)
 	struct btf *btf;
 
 	btf = libbpf_find_kernel_btf();
-	if (CHECK(IS_ERR(btf), "btf_exists", "failed to load kernel BTF: %ld\n",
-		  PTR_ERR(btf)))
+	if (!ASSERT_OK_PTR(btf, "btf_exists"))
 		return;
 
 	percpu_datasec = btf__find_by_name_kind(btf, ".data..percpu",
diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
index 4c232b456479..2cd5cded543f 100644
--- a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
@@ -4,7 +4,7 @@
 #include <test_progs.h>
 #include <bpf/libbpf.h>
 #include <bpf/btf.h>
-#include "test_ksyms_module.skel.h"
+#include "test_ksyms_module.lskel.h"
 
 static int duration;
 
diff --git a/tools/testing/selftests/bpf/prog_tests/link_pinning.c b/tools/testing/selftests/bpf/prog_tests/link_pinning.c
index a743288cf384..6fc97c45f71e 100644
--- a/tools/testing/selftests/bpf/prog_tests/link_pinning.c
+++ b/tools/testing/selftests/bpf/prog_tests/link_pinning.c
@@ -17,7 +17,7 @@ void test_link_pinning_subtest(struct bpf_program *prog,
 	int err, i;
 
 	link = bpf_program__attach(prog);
-	if (CHECK(IS_ERR(link), "link_attach", "err: %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "link_attach"))
 		goto cleanup;
 
 	bss->in = 1;
@@ -51,7 +51,7 @@ void test_link_pinning_subtest(struct bpf_program *prog,
 
 	/* re-open link from BPFFS */
 	link = bpf_link__open(link_pin_path);
-	if (CHECK(IS_ERR(link), "link_open", "err: %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "link_open"))
 		goto cleanup;
 
 	CHECK(strcmp(link_pin_path, bpf_link__pin_path(link)), "pin_path2",
@@ -84,8 +84,7 @@ void test_link_pinning_subtest(struct bpf_program *prog,
 	CHECK(i == 10000, "link_attached", "got to iteration #%d\n", i);
 
 cleanup:
-	if (!IS_ERR(link))
-		bpf_link__destroy(link);
+	bpf_link__destroy(link);
 }
 
 void test_link_pinning(void)
diff --git a/tools/testing/selftests/bpf/prog_tests/lookup_and_delete.c b/tools/testing/selftests/bpf/prog_tests/lookup_and_delete.c
new file mode 100644
index 000000000000..beebfa9730e1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lookup_and_delete.c
@@ -0,0 +1,288 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <test_progs.h>
+#include "test_lookup_and_delete.skel.h"
+
+#define START_VALUE 1234
+#define NEW_VALUE 4321
+#define MAX_ENTRIES 2
+
+static int duration;
+static int nr_cpus;
+
+static int fill_values(int map_fd)
+{
+	__u64 key, value = START_VALUE;
+	int err;
+
+	for (key = 1; key < MAX_ENTRIES + 1; key++) {
+		err = bpf_map_update_elem(map_fd, &key, &value, BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int fill_values_percpu(int map_fd)
+{
+	__u64 key, value[nr_cpus];
+	int i, err;
+
+	for (i = 0; i < nr_cpus; i++)
+		value[i] = START_VALUE;
+
+	for (key = 1; key < MAX_ENTRIES + 1; key++) {
+		err = bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static struct test_lookup_and_delete *setup_prog(enum bpf_map_type map_type,
+						 int *map_fd)
+{
+	struct test_lookup_and_delete *skel;
+	int err;
+
+	skel = test_lookup_and_delete__open();
+	if (!ASSERT_OK_PTR(skel, "test_lookup_and_delete__open"))
+		return NULL;
+
+	err = bpf_map__set_type(skel->maps.hash_map, map_type);
+	if (!ASSERT_OK(err, "bpf_map__set_type"))
+		goto cleanup;
+
+	err = bpf_map__set_max_entries(skel->maps.hash_map, MAX_ENTRIES);
+	if (!ASSERT_OK(err, "bpf_map__set_max_entries"))
+		goto cleanup;
+
+	err = test_lookup_and_delete__load(skel);
+	if (!ASSERT_OK(err, "test_lookup_and_delete__load"))
+		goto cleanup;
+
+	*map_fd = bpf_map__fd(skel->maps.hash_map);
+	if (!ASSERT_GE(*map_fd, 0, "bpf_map__fd"))
+		goto cleanup;
+
+	return skel;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+	return NULL;
+}
+
+/* Triggers BPF program that updates map with given key and value */
+static int trigger_tp(struct test_lookup_and_delete *skel, __u64 key,
+		      __u64 value)
+{
+	int err;
+
+	skel->bss->set_pid = getpid();
+	skel->bss->set_key = key;
+	skel->bss->set_value = value;
+
+	err = test_lookup_and_delete__attach(skel);
+	if (!ASSERT_OK(err, "test_lookup_and_delete__attach"))
+		return -1;
+
+	syscall(__NR_getpgid);
+
+	test_lookup_and_delete__detach(skel);
+
+	return 0;
+}
+
+static void test_lookup_and_delete_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, value;
+	int map_fd, err;
+
+	/* Setup program and fill the map. */
+	skel = setup_prog(BPF_MAP_TYPE_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values(map_fd);
+	if (!ASSERT_OK(err, "fill_values"))
+		goto cleanup;
+
+	/* Lookup and delete element. */
+	key = 1;
+	err = bpf_map_lookup_and_delete_elem(map_fd, &key, &value);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem"))
+		goto cleanup;
+
+	/* Fetched value should match the initially set value. */
+	if (CHECK(value != START_VALUE, "bpf_map_lookup_and_delete_elem",
+		  "unexpected value=%lld\n", value))
+		goto cleanup;
+
+	/* Check that the entry is non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+static void test_lookup_and_delete_percpu_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, val, value[nr_cpus];
+	int map_fd, err, i;
+
+	/* Setup program and fill the map. */
+	skel = setup_prog(BPF_MAP_TYPE_PERCPU_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values_percpu(map_fd);
+	if (!ASSERT_OK(err, "fill_values_percpu"))
+		goto cleanup;
+
+	/* Lookup and delete element. */
+	key = 1;
+	err = bpf_map_lookup_and_delete_elem(map_fd, &key, value);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem"))
+		goto cleanup;
+
+	for (i = 0; i < nr_cpus; i++) {
+		val = value[i];
+
+		/* Fetched value should match the initially set value. */
+		if (CHECK(val != START_VALUE, "map value",
+			  "unexpected for cpu %d: %lld\n", i, val))
+			goto cleanup;
+	}
+
+	/* Check that the entry is non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+static void test_lookup_and_delete_lru_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, value;
+	int map_fd, err;
+
+	/* Setup program and fill the LRU map. */
+	skel = setup_prog(BPF_MAP_TYPE_LRU_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values(map_fd);
+	if (!ASSERT_OK(err, "fill_values"))
+		goto cleanup;
+
+	/* Insert new element at key=3, should reuse LRU element. */
+	key = 3;
+	err = trigger_tp(skel, key, NEW_VALUE);
+	if (!ASSERT_OK(err, "trigger_tp"))
+		goto cleanup;
+
+	/* Lookup and delete element 3. */
+	err = bpf_map_lookup_and_delete_elem(map_fd, &key, &value);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem"))
+		goto cleanup;
+
+	/* Value should match the new value. */
+	if (CHECK(value != NEW_VALUE, "bpf_map_lookup_and_delete_elem",
+		  "unexpected value=%lld\n", value))
+		goto cleanup;
+
+	/* Check that entries 3 and 1 are non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+	key = 1;
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+static void test_lookup_and_delete_lru_percpu_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, val, value[nr_cpus];
+	int map_fd, err, i, cpucnt = 0;
+
+	/* Setup program and fill the LRU map. */
+	skel = setup_prog(BPF_MAP_TYPE_LRU_PERCPU_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values_percpu(map_fd);
+	if (!ASSERT_OK(err, "fill_values_percpu"))
+		goto cleanup;
+
+	/* Insert new element at key=3, should reuse LRU element 1. */
+	key = 3;
+	err = trigger_tp(skel, key, NEW_VALUE);
+	if (!ASSERT_OK(err, "trigger_tp"))
+		goto cleanup;
+
+	/* Clean value. */
+	for (i = 0; i < nr_cpus; i++)
+		value[i] = 0;
+
+	/* Lookup and delete element 3. */
+	err = bpf_map_lookup_and_delete_elem(map_fd, &key, value);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem")) {
+		goto cleanup;
+	}
+
+	/* Check if only one CPU has set the value. */
+	for (i = 0; i < nr_cpus; i++) {
+		val = value[i];
+		if (val) {
+			if (CHECK(val != NEW_VALUE, "map value",
+				  "unexpected for cpu %d: %lld\n", i, val))
+				goto cleanup;
+			cpucnt++;
+		}
+	}
+	if (CHECK(cpucnt != 1, "map value", "set for %d CPUs instead of 1!\n",
+		  cpucnt))
+		goto cleanup;
+
+	/* Check that entries 3 and 1 are non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+	key = 1;
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+void test_lookup_and_delete(void)
+{
+	nr_cpus = bpf_num_possible_cpus();
+
+	if (test__start_subtest("lookup_and_delete"))
+		test_lookup_and_delete_hash();
+	if (test__start_subtest("lookup_and_delete_percpu"))
+		test_lookup_and_delete_percpu_hash();
+	if (test__start_subtest("lookup_and_delete_lru"))
+		test_lookup_and_delete_lru_hash();
+	if (test__start_subtest("lookup_and_delete_lru_percpu"))
+		test_lookup_and_delete_lru_percpu_hash();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
new file mode 100644
index 000000000000..59adb4715394
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
@@ -0,0 +1,559 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Check if we can migrate child sockets.
+ *
+ *   1. call listen() for 4 server sockets.
+ *   2. call connect() for 25 client sockets.
+ *   3. call listen() for 1 server socket. (migration target)
+ *   4. update a map to migrate all child sockets
+ *        to the last server socket (migrate_map[cookie] = 4)
+ *   5. call shutdown() for first 4 server sockets
+ *        and migrate the requests in the accept queue
+ *        to the last server socket.
+ *   6. call listen() for the second server socket.
+ *   7. call shutdown() for the last server
+ *        and migrate the requests in the accept queue
+ *        to the second server socket.
+ *   8. call listen() for the last server.
+ *   9. call shutdown() for the second server
+ *        and migrate the requests in the accept queue
+ *        to the last server socket.
+ *  10. call accept() for the last server socket.
+ *
+ * Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+ */
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "test_progs.h"
+#include "test_migrate_reuseport.skel.h"
+#include "network_helpers.h"
+
+#ifndef TCP_FASTOPEN_CONNECT
+#define TCP_FASTOPEN_CONNECT 30
+#endif
+
+#define IFINDEX_LO 1
+
+#define NR_SERVERS 5
+#define NR_CLIENTS (NR_SERVERS * 5)
+#define MIGRATED_TO (NR_SERVERS - 1)
+
+/* fastopenq->max_qlen and sk->sk_max_ack_backlog */
+#define QLEN (NR_CLIENTS * 5)
+
+#define MSG "Hello World\0"
+#define MSGLEN 12
+
+static struct migrate_reuseport_test_case {
+	const char *name;
+	__s64 servers[NR_SERVERS];
+	__s64 clients[NR_CLIENTS];
+	struct sockaddr_storage addr;
+	socklen_t addrlen;
+	int family;
+	int state;
+	bool drop_ack;
+	bool expire_synack_timer;
+	bool fastopen;
+	struct bpf_link *link;
+} test_cases[] = {
+	{
+		.name = "IPv4 TCP_ESTABLISHED  inet_csk_listen_stop",
+		.family = AF_INET,
+		.state = BPF_TCP_ESTABLISHED,
+		.drop_ack = false,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv4 TCP_SYN_RECV     inet_csk_listen_stop",
+		.family = AF_INET,
+		.state = BPF_TCP_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = true,
+	},
+	{
+		.name = "IPv4 TCP_NEW_SYN_RECV reqsk_timer_handler",
+		.family = AF_INET,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = true,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv4 TCP_NEW_SYN_RECV inet_csk_complete_hashdance",
+		.family = AF_INET,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv6 TCP_ESTABLISHED  inet_csk_listen_stop",
+		.family = AF_INET6,
+		.state = BPF_TCP_ESTABLISHED,
+		.drop_ack = false,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv6 TCP_SYN_RECV     inet_csk_listen_stop",
+		.family = AF_INET6,
+		.state = BPF_TCP_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = true,
+	},
+	{
+		.name = "IPv6 TCP_NEW_SYN_RECV reqsk_timer_handler",
+		.family = AF_INET6,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = true,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv6 TCP_NEW_SYN_RECV inet_csk_complete_hashdance",
+		.family = AF_INET6,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	}
+};
+
+static void init_fds(__s64 fds[], int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++)
+		fds[i] = -1;
+}
+
+static void close_fds(__s64 fds[], int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		if (fds[i] != -1) {
+			close(fds[i]);
+			fds[i] = -1;
+		}
+	}
+}
+
+static int setup_fastopen(char *buf, int size, int *saved_len, bool restore)
+{
+	int err = 0, fd, len;
+
+	fd = open("/proc/sys/net/ipv4/tcp_fastopen", O_RDWR);
+	if (!ASSERT_NEQ(fd, -1, "open"))
+		return -1;
+
+	if (restore) {
+		len = write(fd, buf, *saved_len);
+		if (!ASSERT_EQ(len, *saved_len, "write - restore"))
+			err = -1;
+	} else {
+		*saved_len = read(fd, buf, size);
+		if (!ASSERT_GE(*saved_len, 1, "read")) {
+			err = -1;
+			goto close;
+		}
+
+		err = lseek(fd, 0, SEEK_SET);
+		if (!ASSERT_OK(err, "lseek"))
+			goto close;
+
+		/* (TFO_CLIENT_ENABLE | TFO_SERVER_ENABLE |
+		 *  TFO_CLIENT_NO_COOKIE | TFO_SERVER_COOKIE_NOT_REQD)
+		 */
+		len = write(fd, "519", 3);
+		if (!ASSERT_EQ(len, 3, "write - setup"))
+			err = -1;
+	}
+
+close:
+	close(fd);
+
+	return err;
+}
+
+static int drop_ack(struct migrate_reuseport_test_case *test_case,
+		    struct test_migrate_reuseport *skel)
+{
+	if (test_case->family == AF_INET)
+		skel->bss->server_port = ((struct sockaddr_in *)
+					  &test_case->addr)->sin_port;
+	else
+		skel->bss->server_port = ((struct sockaddr_in6 *)
+					  &test_case->addr)->sin6_port;
+
+	test_case->link = bpf_program__attach_xdp(skel->progs.drop_ack,
+						  IFINDEX_LO);
+	if (!ASSERT_OK_PTR(test_case->link, "bpf_program__attach_xdp"))
+		return -1;
+
+	return 0;
+}
+
+static int pass_ack(struct migrate_reuseport_test_case *test_case)
+{
+	int err;
+
+	err = bpf_link__detach(test_case->link);
+	if (!ASSERT_OK(err, "bpf_link__detach"))
+		return -1;
+
+	test_case->link = NULL;
+
+	return 0;
+}
+
+static int start_servers(struct migrate_reuseport_test_case *test_case,
+			 struct test_migrate_reuseport *skel)
+{
+	int i, err, prog_fd, reuseport = 1, qlen = QLEN;
+
+	prog_fd = bpf_program__fd(skel->progs.migrate_reuseport);
+
+	make_sockaddr(test_case->family,
+		      test_case->family == AF_INET ? "127.0.0.1" : "::1", 0,
+		      &test_case->addr, &test_case->addrlen);
+
+	for (i = 0; i < NR_SERVERS; i++) {
+		test_case->servers[i] = socket(test_case->family, SOCK_STREAM,
+					       IPPROTO_TCP);
+		if (!ASSERT_NEQ(test_case->servers[i], -1, "socket"))
+			return -1;
+
+		err = setsockopt(test_case->servers[i], SOL_SOCKET,
+				 SO_REUSEPORT, &reuseport, sizeof(reuseport));
+		if (!ASSERT_OK(err, "setsockopt - SO_REUSEPORT"))
+			return -1;
+
+		err = bind(test_case->servers[i],
+			   (struct sockaddr *)&test_case->addr,
+			   test_case->addrlen);
+		if (!ASSERT_OK(err, "bind"))
+			return -1;
+
+		if (i == 0) {
+			err = setsockopt(test_case->servers[i], SOL_SOCKET,
+					 SO_ATTACH_REUSEPORT_EBPF,
+					 &prog_fd, sizeof(prog_fd));
+			if (!ASSERT_OK(err,
+				       "setsockopt - SO_ATTACH_REUSEPORT_EBPF"))
+				return -1;
+
+			err = getsockname(test_case->servers[i],
+					  (struct sockaddr *)&test_case->addr,
+					  &test_case->addrlen);
+			if (!ASSERT_OK(err, "getsockname"))
+				return -1;
+		}
+
+		if (test_case->fastopen) {
+			err = setsockopt(test_case->servers[i],
+					 SOL_TCP, TCP_FASTOPEN,
+					 &qlen, sizeof(qlen));
+			if (!ASSERT_OK(err, "setsockopt - TCP_FASTOPEN"))
+				return -1;
+		}
+
+		/* All requests will be tied to the first four listeners */
+		if (i != MIGRATED_TO) {
+			err = listen(test_case->servers[i], qlen);
+			if (!ASSERT_OK(err, "listen"))
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+static int start_clients(struct migrate_reuseport_test_case *test_case)
+{
+	char buf[MSGLEN] = MSG;
+	int i, err;
+
+	for (i = 0; i < NR_CLIENTS; i++) {
+		test_case->clients[i] = socket(test_case->family, SOCK_STREAM,
+					       IPPROTO_TCP);
+		if (!ASSERT_NEQ(test_case->clients[i], -1, "socket"))
+			return -1;
+
+		/* The attached XDP program drops only the final ACK, so
+		 * clients will transition to TCP_ESTABLISHED immediately.
+		 */
+		err = settimeo(test_case->clients[i], 100);
+		if (!ASSERT_OK(err, "settimeo"))
+			return -1;
+
+		if (test_case->fastopen) {
+			int fastopen = 1;
+
+			err = setsockopt(test_case->clients[i], IPPROTO_TCP,
+					 TCP_FASTOPEN_CONNECT, &fastopen,
+					 sizeof(fastopen));
+			if (!ASSERT_OK(err,
+				       "setsockopt - TCP_FASTOPEN_CONNECT"))
+				return -1;
+		}
+
+		err = connect(test_case->clients[i],
+			      (struct sockaddr *)&test_case->addr,
+			      test_case->addrlen);
+		if (!ASSERT_OK(err, "connect"))
+			return -1;
+
+		err = write(test_case->clients[i], buf, MSGLEN);
+		if (!ASSERT_EQ(err, MSGLEN, "write"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int update_maps(struct migrate_reuseport_test_case *test_case,
+		       struct test_migrate_reuseport *skel)
+{
+	int i, err, migrated_to = MIGRATED_TO;
+	int reuseport_map_fd, migrate_map_fd;
+	__u64 value;
+
+	reuseport_map_fd = bpf_map__fd(skel->maps.reuseport_map);
+	migrate_map_fd = bpf_map__fd(skel->maps.migrate_map);
+
+	for (i = 0; i < NR_SERVERS; i++) {
+		value = (__u64)test_case->servers[i];
+		err = bpf_map_update_elem(reuseport_map_fd, &i, &value,
+					  BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem - reuseport_map"))
+			return -1;
+
+		err = bpf_map_lookup_elem(reuseport_map_fd, &i, &value);
+		if (!ASSERT_OK(err, "bpf_map_lookup_elem - reuseport_map"))
+			return -1;
+
+		err = bpf_map_update_elem(migrate_map_fd, &value, &migrated_to,
+					  BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem - migrate_map"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int migrate_dance(struct migrate_reuseport_test_case *test_case)
+{
+	int i, err;
+
+	/* Migrate TCP_ESTABLISHED and TCP_SYN_RECV requests
+	 * to the last listener based on eBPF.
+	 */
+	for (i = 0; i < MIGRATED_TO; i++) {
+		err = shutdown(test_case->servers[i], SHUT_RDWR);
+		if (!ASSERT_OK(err, "shutdown"))
+			return -1;
+	}
+
+	/* No dance for TCP_NEW_SYN_RECV to migrate based on eBPF */
+	if (test_case->state == BPF_TCP_NEW_SYN_RECV)
+		return 0;
+
+	/* Note that we use the second listener instead of the
+	 * first one here.
+	 *
+	 * The fist listener is bind()ed with port 0 and,
+	 * SOCK_BINDPORT_LOCK is not set to sk_userlocks, so
+	 * calling listen() again will bind() the first listener
+	 * on a new ephemeral port and detach it from the existing
+	 * reuseport group.  (See: __inet_bind(), tcp_set_state())
+	 *
+	 * OTOH, the second one is bind()ed with a specific port,
+	 * and SOCK_BINDPORT_LOCK is set. Thus, re-listen() will
+	 * resurrect the listener on the existing reuseport group.
+	 */
+	err = listen(test_case->servers[1], QLEN);
+	if (!ASSERT_OK(err, "listen"))
+		return -1;
+
+	/* Migrate from the last listener to the second one.
+	 *
+	 * All listeners were detached out of the reuseport_map,
+	 * so migration will be done by kernel random pick from here.
+	 */
+	err = shutdown(test_case->servers[MIGRATED_TO], SHUT_RDWR);
+	if (!ASSERT_OK(err, "shutdown"))
+		return -1;
+
+	/* Back to the existing reuseport group */
+	err = listen(test_case->servers[MIGRATED_TO], QLEN);
+	if (!ASSERT_OK(err, "listen"))
+		return -1;
+
+	/* Migrate back to the last one from the second one */
+	err = shutdown(test_case->servers[1], SHUT_RDWR);
+	if (!ASSERT_OK(err, "shutdown"))
+		return -1;
+
+	return 0;
+}
+
+static void count_requests(struct migrate_reuseport_test_case *test_case,
+			   struct test_migrate_reuseport *skel)
+{
+	struct sockaddr_storage addr;
+	socklen_t len = sizeof(addr);
+	int err, cnt = 0, client;
+	char buf[MSGLEN];
+
+	err = settimeo(test_case->servers[MIGRATED_TO], 4000);
+	if (!ASSERT_OK(err, "settimeo"))
+		goto out;
+
+	for (; cnt < NR_CLIENTS; cnt++) {
+		client = accept(test_case->servers[MIGRATED_TO],
+				(struct sockaddr *)&addr, &len);
+		if (!ASSERT_NEQ(client, -1, "accept"))
+			goto out;
+
+		memset(buf, 0, MSGLEN);
+		read(client, &buf, MSGLEN);
+		close(client);
+
+		if (!ASSERT_STREQ(buf, MSG, "read"))
+			goto out;
+	}
+
+out:
+	ASSERT_EQ(cnt, NR_CLIENTS, "count in userspace");
+
+	switch (test_case->state) {
+	case BPF_TCP_ESTABLISHED:
+		cnt = skel->bss->migrated_at_close;
+		break;
+	case BPF_TCP_SYN_RECV:
+		cnt = skel->bss->migrated_at_close_fastopen;
+		break;
+	case BPF_TCP_NEW_SYN_RECV:
+		if (test_case->expire_synack_timer)
+			cnt = skel->bss->migrated_at_send_synack;
+		else
+			cnt = skel->bss->migrated_at_recv_ack;
+		break;
+	default:
+		cnt = 0;
+	}
+
+	ASSERT_EQ(cnt, NR_CLIENTS, "count in BPF prog");
+}
+
+static void run_test(struct migrate_reuseport_test_case *test_case,
+		     struct test_migrate_reuseport *skel)
+{
+	int err, saved_len;
+	char buf[16];
+
+	skel->bss->migrated_at_close = 0;
+	skel->bss->migrated_at_close_fastopen = 0;
+	skel->bss->migrated_at_send_synack = 0;
+	skel->bss->migrated_at_recv_ack = 0;
+
+	init_fds(test_case->servers, NR_SERVERS);
+	init_fds(test_case->clients, NR_CLIENTS);
+
+	if (test_case->fastopen) {
+		memset(buf, 0, sizeof(buf));
+
+		err = setup_fastopen(buf, sizeof(buf), &saved_len, false);
+		if (!ASSERT_OK(err, "setup_fastopen - setup"))
+			return;
+	}
+
+	err = start_servers(test_case, skel);
+	if (!ASSERT_OK(err, "start_servers"))
+		goto close_servers;
+
+	if (test_case->drop_ack) {
+		/* Drop the final ACK of the 3-way handshake and stick the
+		 * in-flight requests on TCP_SYN_RECV or TCP_NEW_SYN_RECV.
+		 */
+		err = drop_ack(test_case, skel);
+		if (!ASSERT_OK(err, "drop_ack"))
+			goto close_servers;
+	}
+
+	/* Tie requests to the first four listners */
+	err = start_clients(test_case);
+	if (!ASSERT_OK(err, "start_clients"))
+		goto close_clients;
+
+	err = listen(test_case->servers[MIGRATED_TO], QLEN);
+	if (!ASSERT_OK(err, "listen"))
+		goto close_clients;
+
+	err = update_maps(test_case, skel);
+	if (!ASSERT_OK(err, "fill_maps"))
+		goto close_clients;
+
+	/* Migrate the requests in the accept queue only.
+	 * TCP_NEW_SYN_RECV requests are not migrated at this point.
+	 */
+	err = migrate_dance(test_case);
+	if (!ASSERT_OK(err, "migrate_dance"))
+		goto close_clients;
+
+	if (test_case->expire_synack_timer) {
+		/* Wait for SYN+ACK timers to expire so that
+		 * reqsk_timer_handler() migrates TCP_NEW_SYN_RECV requests.
+		 */
+		sleep(1);
+	}
+
+	if (test_case->link) {
+		/* Resume 3WHS and migrate TCP_NEW_SYN_RECV requests */
+		err = pass_ack(test_case);
+		if (!ASSERT_OK(err, "pass_ack"))
+			goto close_clients;
+	}
+
+	count_requests(test_case, skel);
+
+close_clients:
+	close_fds(test_case->clients, NR_CLIENTS);
+
+	if (test_case->link) {
+		err = pass_ack(test_case);
+		ASSERT_OK(err, "pass_ack - clean up");
+	}
+
+close_servers:
+	close_fds(test_case->servers, NR_SERVERS);
+
+	if (test_case->fastopen) {
+		err = setup_fastopen(buf, sizeof(buf), &saved_len, true);
+		ASSERT_OK(err, "setup_fastopen - restore");
+	}
+}
+
+void test_migrate_reuseport(void)
+{
+	struct test_migrate_reuseport *skel;
+	int i;
+
+	skel = test_migrate_reuseport__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		test__start_subtest(test_cases[i].name);
+		run_test(&test_cases[i], skel);
+	}
+
+	test_migrate_reuseport__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/obj_name.c b/tools/testing/selftests/bpf/prog_tests/obj_name.c
index e178416bddad..6194b776a28b 100644
--- a/tools/testing/selftests/bpf/prog_tests/obj_name.c
+++ b/tools/testing/selftests/bpf/prog_tests/obj_name.c
@@ -38,13 +38,13 @@ void test_obj_name(void)
 
 		fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
 		CHECK((tests[i].success && fd < 0) ||
-		      (!tests[i].success && fd != -1) ||
+		      (!tests[i].success && fd >= 0) ||
 		      (!tests[i].success && errno != tests[i].expected_errno),
 		      "check-bpf-prog-name",
 		      "fd %d(%d) errno %d(%d)\n",
 		       fd, tests[i].success, errno, tests[i].expected_errno);
 
-		if (fd != -1)
+		if (fd >= 0)
 			close(fd);
 
 		/* test different attr.map_name during BPF_MAP_CREATE */
@@ -59,13 +59,13 @@ void test_obj_name(void)
 		memcpy(attr.map_name, tests[i].name, ncopy);
 		fd = syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));
 		CHECK((tests[i].success && fd < 0) ||
-		      (!tests[i].success && fd != -1) ||
+		      (!tests[i].success && fd >= 0) ||
 		      (!tests[i].success && errno != tests[i].expected_errno),
 		      "check-bpf-map-name",
 		      "fd %d(%d) errno %d(%d)\n",
 		      fd, tests[i].success, errno, tests[i].expected_errno);
 
-		if (fd != -1)
+		if (fd >= 0)
 			close(fd);
 	}
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_branches.c b/tools/testing/selftests/bpf/prog_tests/perf_branches.c
index e35c444902a7..12c4f45cee1a 100644
--- a/tools/testing/selftests/bpf/prog_tests/perf_branches.c
+++ b/tools/testing/selftests/bpf/prog_tests/perf_branches.c
@@ -74,7 +74,7 @@ static void test_perf_branches_common(int perf_fd,
 
 	/* attach perf_event */
 	link = bpf_program__attach_perf_event(skel->progs.perf_branches, perf_fd);
-	if (CHECK(IS_ERR(link), "attach_perf_event", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_perf_event"))
 		goto out_destroy_skel;
 
 	/* generate some branches on cpu 0 */
@@ -119,7 +119,7 @@ static void test_perf_branches_hw(void)
 	 * Some setups don't support branch records (virtual machines, !x86),
 	 * so skip test in this case.
 	 */
-	if (pfd == -1) {
+	if (pfd < 0) {
 		if (errno == ENOENT || errno == EOPNOTSUPP) {
 			printf("%s:SKIP:no PERF_SAMPLE_BRANCH_STACK\n",
 			       __func__);
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
index ca9f0895ec84..6490e9673002 100644
--- a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
+++ b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
@@ -80,7 +80,7 @@ void test_perf_buffer(void)
 	pb_opts.sample_cb = on_sample;
 	pb_opts.ctx = &cpu_seen;
 	pb = perf_buffer__new(bpf_map__fd(skel->maps.perf_buf_map), 1, &pb_opts);
-	if (CHECK(IS_ERR(pb), "perf_buf__new", "err %ld\n", PTR_ERR(pb)))
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
 		goto out_close;
 
 	CHECK(perf_buffer__epoll_fd(pb) < 0, "epoll_fd",
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c b/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c
index 72c3690844fb..33144c9432ae 100644
--- a/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c
+++ b/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c
@@ -97,8 +97,7 @@ void test_perf_event_stackmap(void)
 
 	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
 							   pmu_fd);
-	if (CHECK(IS_ERR(skel->links.oncpu), "attach_perf_event",
-		  "err %ld\n", PTR_ERR(skel->links.oncpu))) {
+	if (!ASSERT_OK_PTR(skel->links.oncpu, "attach_perf_event")) {
 		close(pmu_fd);
 		goto cleanup;
 	}
diff --git a/tools/testing/selftests/bpf/prog_tests/probe_user.c b/tools/testing/selftests/bpf/prog_tests/probe_user.c
index 7aecfd9e87d1..95bd12097358 100644
--- a/tools/testing/selftests/bpf/prog_tests/probe_user.c
+++ b/tools/testing/selftests/bpf/prog_tests/probe_user.c
@@ -15,7 +15,7 @@ void test_probe_user(void)
 	static const int zero = 0;
 
 	obj = bpf_object__open_file(obj_file, &opts);
-	if (CHECK(IS_ERR(obj), "obj_open_file", "err %ld\n", PTR_ERR(obj)))
+	if (!ASSERT_OK_PTR(obj, "obj_open_file"))
 		return;
 
 	kprobe_prog = bpf_object__find_program_by_title(obj, prog_name);
@@ -33,11 +33,8 @@ void test_probe_user(void)
 		goto cleanup;
 
 	kprobe_link = bpf_program__attach(kprobe_prog);
-	if (CHECK(IS_ERR(kprobe_link), "attach_kprobe",
-		  "err %ld\n", PTR_ERR(kprobe_link))) {
-		kprobe_link = NULL;
+	if (!ASSERT_OK_PTR(kprobe_link, "attach_kprobe"))
 		goto cleanup;
-	}
 
 	memset(&curr, 0, sizeof(curr));
 	in->sin_family = AF_INET;
diff --git a/tools/testing/selftests/bpf/prog_tests/prog_run_xattr.c b/tools/testing/selftests/bpf/prog_tests/prog_run_xattr.c
index 131d7f7eeb42..89fc98faf19e 100644
--- a/tools/testing/selftests/bpf/prog_tests/prog_run_xattr.c
+++ b/tools/testing/selftests/bpf/prog_tests/prog_run_xattr.c
@@ -46,7 +46,7 @@ void test_prog_run_xattr(void)
 	tattr.prog_fd = bpf_program__fd(skel->progs.test_pkt_access);
 
 	err = bpf_prog_test_run_xattr(&tattr);
-	CHECK_ATTR(err != -1 || errno != ENOSPC || tattr.retval, "run",
+	CHECK_ATTR(err >= 0 || errno != ENOSPC || tattr.retval, "run",
 	      "err %d errno %d retval %d\n", err, errno, tattr.retval);
 
 	CHECK_ATTR(tattr.data_size_out != sizeof(pkt_v4), "data_size_out",
@@ -78,6 +78,6 @@ void test_prog_run_xattr(void)
 cleanup:
 	if (skel)
 		test_pkt_access__destroy(skel);
-	if (stats_fd != -1)
+	if (stats_fd >= 0)
 		close(stats_fd);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c b/tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c
index c5fb191874ac..41720a62c4fa 100644
--- a/tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c
+++ b/tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c
@@ -77,7 +77,7 @@ void test_raw_tp_test_run(void)
 	/* invalid cpu ID should fail with ENXIO */
 	opts.cpu = 0xffffffff;
 	err = bpf_prog_test_run_opts(prog_fd, &opts);
-	CHECK(err != -1 || errno != ENXIO,
+	CHECK(err >= 0 || errno != ENXIO,
 	      "test_run_opts_fail",
 	      "should failed with ENXIO\n");
 
@@ -85,7 +85,7 @@ void test_raw_tp_test_run(void)
 	opts.cpu = 1;
 	opts.flags = 0;
 	err = bpf_prog_test_run_opts(prog_fd, &opts);
-	CHECK(err != -1 || errno != EINVAL,
+	CHECK(err >= 0 || errno != EINVAL,
 	      "test_run_opts_fail",
 	      "should failed with EINVAL\n");
 
diff --git a/tools/testing/selftests/bpf/prog_tests/rdonly_maps.c b/tools/testing/selftests/bpf/prog_tests/rdonly_maps.c
index 563e12120e77..5f9eaa3ab584 100644
--- a/tools/testing/selftests/bpf/prog_tests/rdonly_maps.c
+++ b/tools/testing/selftests/bpf/prog_tests/rdonly_maps.c
@@ -30,7 +30,7 @@ void test_rdonly_maps(void)
 	struct bss bss;
 
 	obj = bpf_object__open_file(file, NULL);
-	if (CHECK(IS_ERR(obj), "obj_open", "err %ld\n", PTR_ERR(obj)))
+	if (!ASSERT_OK_PTR(obj, "obj_open"))
 		return;
 
 	err = bpf_object__load(obj);
@@ -58,11 +58,8 @@ void test_rdonly_maps(void)
 			goto cleanup;
 
 		link = bpf_program__attach_raw_tracepoint(prog, "sys_enter");
-		if (CHECK(IS_ERR(link), "attach_prog", "prog '%s', err %ld\n",
-			  t->prog_name, PTR_ERR(link))) {
-			link = NULL;
+		if (!ASSERT_OK_PTR(link, "attach_prog"))
 			goto cleanup;
-		}
 
 		/* trigger probe */
 		usleep(1);
diff --git a/tools/testing/selftests/bpf/prog_tests/reference_tracking.c b/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
index ac1ee10cffd8..de2688166696 100644
--- a/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
+++ b/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
@@ -15,7 +15,7 @@ void test_reference_tracking(void)
 	int err = 0;
 
 	obj = bpf_object__open_file(file, &open_opts);
-	if (CHECK_FAIL(IS_ERR(obj)))
+	if (!ASSERT_OK_PTR(obj, "obj_open_file"))
 		return;
 
 	if (CHECK(strcmp(bpf_object__name(obj), obj_name), "obj_name",
diff --git a/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
index d3c2de2c24d1..f62361306f6d 100644
--- a/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
+++ b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
@@ -76,7 +76,7 @@ __resolve_symbol(struct btf *btf, int type_id)
 	}
 
 	for (i = 0; i < ARRAY_SIZE(test_symbols); i++) {
-		if (test_symbols[i].id != -1)
+		if (test_symbols[i].id >= 0)
 			continue;
 
 		if (BTF_INFO_KIND(type->info) != test_symbols[i].type)
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf.c b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
index f9a8ae331963..4706cee84360 100644
--- a/tools/testing/selftests/bpf/prog_tests/ringbuf.c
+++ b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
@@ -12,7 +12,7 @@
 #include <sys/sysinfo.h>
 #include <linux/perf_event.h>
 #include <linux/ring_buffer.h>
-#include "test_ringbuf.skel.h"
+#include "test_ringbuf.lskel.h"
 
 #define EDONE 7777
 
@@ -94,15 +94,13 @@ void test_ringbuf(void)
 	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
 		return;
 
-	err = bpf_map__set_max_entries(skel->maps.ringbuf, page_size);
-	if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n"))
-		goto cleanup;
+	skel->maps.ringbuf.max_entries = page_size;
 
 	err = test_ringbuf__load(skel);
 	if (CHECK(err != 0, "skel_load", "skeleton load failed\n"))
 		goto cleanup;
 
-	rb_fd = bpf_map__fd(skel->maps.ringbuf);
+	rb_fd = skel->maps.ringbuf.map_fd;
 	/* good read/write cons_pos */
 	mmap_ptr = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, rb_fd, 0);
 	ASSERT_OK_PTR(mmap_ptr, "rw_cons_pos");
@@ -151,7 +149,7 @@ void test_ringbuf(void)
 	/* only trigger BPF program for current process */
 	skel->bss->pid = getpid();
 
-	ringbuf = ring_buffer__new(bpf_map__fd(skel->maps.ringbuf),
+	ringbuf = ring_buffer__new(skel->maps.ringbuf.map_fd,
 				   process_sample, NULL, NULL);
 	if (CHECK(!ringbuf, "ringbuf_create", "failed to create ringbuf\n"))
 		goto cleanup;
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
index cef63e703924..167cd8a2edfd 100644
--- a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
+++ b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
@@ -63,7 +63,7 @@ void test_ringbuf_multi(void)
 		goto cleanup;
 
 	proto_fd = bpf_create_map(BPF_MAP_TYPE_RINGBUF, 0, 0, page_size, 0);
-	if (CHECK(proto_fd == -1, "bpf_create_map", "bpf_create_map failed\n"))
+	if (CHECK(proto_fd < 0, "bpf_create_map", "bpf_create_map failed\n"))
 		goto cleanup;
 
 	err = bpf_map__set_inner_map_fd(skel->maps.ringbuf_hash, proto_fd);
diff --git a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
index 821b4146b7b6..4efd337d6a3c 100644
--- a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
+++ b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
@@ -78,7 +78,7 @@ static int create_maps(enum bpf_map_type inner_type)
 	attr.max_entries = REUSEPORT_ARRAY_SIZE;
 
 	reuseport_array = bpf_create_map_xattr(&attr);
-	RET_ERR(reuseport_array == -1, "creating reuseport_array",
+	RET_ERR(reuseport_array < 0, "creating reuseport_array",
 		"reuseport_array:%d errno:%d\n", reuseport_array, errno);
 
 	/* Creating outer_map */
@@ -89,7 +89,7 @@ static int create_maps(enum bpf_map_type inner_type)
 	attr.max_entries = 1;
 	attr.inner_map_fd = reuseport_array;
 	outer_map = bpf_create_map_xattr(&attr);
-	RET_ERR(outer_map == -1, "creating outer_map",
+	RET_ERR(outer_map < 0, "creating outer_map",
 		"outer_map:%d errno:%d\n", outer_map, errno);
 
 	return 0;
@@ -102,8 +102,9 @@ static int prepare_bpf_obj(void)
 	int err;
 
 	obj = bpf_object__open("test_select_reuseport_kern.o");
-	RET_ERR(IS_ERR_OR_NULL(obj), "open test_select_reuseport_kern.o",
-		"obj:%p PTR_ERR(obj):%ld\n", obj, PTR_ERR(obj));
+	err = libbpf_get_error(obj);
+	RET_ERR(err, "open test_select_reuseport_kern.o",
+		"obj:%p PTR_ERR(obj):%d\n", obj, err);
 
 	map = bpf_object__find_map_by_name(obj, "outer_map");
 	RET_ERR(!map, "find outer_map", "!map\n");
@@ -116,31 +117,31 @@ static int prepare_bpf_obj(void)
 	prog = bpf_program__next(NULL, obj);
 	RET_ERR(!prog, "get first bpf_program", "!prog\n");
 	select_by_skb_data_prog = bpf_program__fd(prog);
-	RET_ERR(select_by_skb_data_prog == -1, "get prog fd",
+	RET_ERR(select_by_skb_data_prog < 0, "get prog fd",
 		"select_by_skb_data_prog:%d\n", select_by_skb_data_prog);
 
 	map = bpf_object__find_map_by_name(obj, "result_map");
 	RET_ERR(!map, "find result_map", "!map\n");
 	result_map = bpf_map__fd(map);
-	RET_ERR(result_map == -1, "get result_map fd",
+	RET_ERR(result_map < 0, "get result_map fd",
 		"result_map:%d\n", result_map);
 
 	map = bpf_object__find_map_by_name(obj, "tmp_index_ovr_map");
 	RET_ERR(!map, "find tmp_index_ovr_map\n", "!map");
 	tmp_index_ovr_map = bpf_map__fd(map);
-	RET_ERR(tmp_index_ovr_map == -1, "get tmp_index_ovr_map fd",
+	RET_ERR(tmp_index_ovr_map < 0, "get tmp_index_ovr_map fd",
 		"tmp_index_ovr_map:%d\n", tmp_index_ovr_map);
 
 	map = bpf_object__find_map_by_name(obj, "linum_map");
 	RET_ERR(!map, "find linum_map", "!map\n");
 	linum_map = bpf_map__fd(map);
-	RET_ERR(linum_map == -1, "get linum_map fd",
+	RET_ERR(linum_map < 0, "get linum_map fd",
 		"linum_map:%d\n", linum_map);
 
 	map = bpf_object__find_map_by_name(obj, "data_check_map");
 	RET_ERR(!map, "find data_check_map", "!map\n");
 	data_check_map = bpf_map__fd(map);
-	RET_ERR(data_check_map == -1, "get data_check_map fd",
+	RET_ERR(data_check_map < 0, "get data_check_map fd",
 		"data_check_map:%d\n", data_check_map);
 
 	return 0;
@@ -237,7 +238,7 @@ static long get_linum(void)
 	int err;
 
 	err = bpf_map_lookup_elem(linum_map, &index_zero, &linum);
-	RET_ERR(err == -1, "lookup_elem(linum_map)", "err:%d errno:%d\n",
+	RET_ERR(err < 0, "lookup_elem(linum_map)", "err:%d errno:%d\n",
 		err, errno);
 
 	return linum;
@@ -254,11 +255,11 @@ static void check_data(int type, sa_family_t family, const struct cmd *cmd,
 	addrlen = sizeof(cli_sa);
 	err = getsockname(cli_fd, (struct sockaddr *)&cli_sa,
 			  &addrlen);
-	RET_IF(err == -1, "getsockname(cli_fd)", "err:%d errno:%d\n",
+	RET_IF(err < 0, "getsockname(cli_fd)", "err:%d errno:%d\n",
 	       err, errno);
 
 	err = bpf_map_lookup_elem(data_check_map, &index_zero, &result);
-	RET_IF(err == -1, "lookup_elem(data_check_map)", "err:%d errno:%d\n",
+	RET_IF(err < 0, "lookup_elem(data_check_map)", "err:%d errno:%d\n",
 	       err, errno);
 
 	if (type == SOCK_STREAM) {
@@ -347,7 +348,7 @@ static void check_results(void)
 
 	for (i = 0; i < NR_RESULTS; i++) {
 		err = bpf_map_lookup_elem(result_map, &i, &results[i]);
-		RET_IF(err == -1, "lookup_elem(result_map)",
+		RET_IF(err < 0, "lookup_elem(result_map)",
 		       "i:%u err:%d errno:%d\n", i, err, errno);
 	}
 
@@ -524,12 +525,12 @@ static void test_syncookie(int type, sa_family_t family)
 	 */
 	err = bpf_map_update_elem(tmp_index_ovr_map, &index_zero,
 				  &tmp_index, BPF_ANY);
-	RET_IF(err == -1, "update_elem(tmp_index_ovr_map, 0, 1)",
+	RET_IF(err < 0, "update_elem(tmp_index_ovr_map, 0, 1)",
 	       "err:%d errno:%d\n", err, errno);
 	do_test(type, family, &cmd, PASS);
 	err = bpf_map_lookup_elem(tmp_index_ovr_map, &index_zero,
 				  &tmp_index);
-	RET_IF(err == -1 || tmp_index != -1,
+	RET_IF(err < 0 || tmp_index >= 0,
 	       "lookup_elem(tmp_index_ovr_map)",
 	       "err:%d errno:%d tmp_index:%d\n",
 	       err, errno, tmp_index);
@@ -569,7 +570,7 @@ static void test_detach_bpf(int type, sa_family_t family)
 
 	for (i = 0; i < NR_RESULTS; i++) {
 		err = bpf_map_lookup_elem(result_map, &i, &tmp);
-		RET_IF(err == -1, "lookup_elem(result_map)",
+		RET_IF(err < 0, "lookup_elem(result_map)",
 		       "i:%u err:%d errno:%d\n", i, err, errno);
 		nr_run_before += tmp;
 	}
@@ -584,7 +585,7 @@ static void test_detach_bpf(int type, sa_family_t family)
 
 	for (i = 0; i < NR_RESULTS; i++) {
 		err = bpf_map_lookup_elem(result_map, &i, &tmp);
-		RET_IF(err == -1, "lookup_elem(result_map)",
+		RET_IF(err < 0, "lookup_elem(result_map)",
 		       "i:%u err:%d errno:%d\n", i, err, errno);
 		nr_run_after += tmp;
 	}
@@ -632,24 +633,24 @@ static void prepare_sk_fds(int type, sa_family_t family, bool inany)
 					 SO_ATTACH_REUSEPORT_EBPF,
 					 &select_by_skb_data_prog,
 					 sizeof(select_by_skb_data_prog));
-			RET_IF(err == -1, "setsockopt(SO_ATTACH_REUEPORT_EBPF)",
+			RET_IF(err < 0, "setsockopt(SO_ATTACH_REUEPORT_EBPF)",
 			       "err:%d errno:%d\n", err, errno);
 		}
 
 		err = bind(sk_fds[i], (struct sockaddr *)&srv_sa, addrlen);
-		RET_IF(err == -1, "bind()", "sk_fds[%d] err:%d errno:%d\n",
+		RET_IF(err < 0, "bind()", "sk_fds[%d] err:%d errno:%d\n",
 		       i, err, errno);
 
 		if (type == SOCK_STREAM) {
 			err = listen(sk_fds[i], 10);
-			RET_IF(err == -1, "listen()",
+			RET_IF(err < 0, "listen()",
 			       "sk_fds[%d] err:%d errno:%d\n",
 			       i, err, errno);
 		}
 
 		err = bpf_map_update_elem(reuseport_array, &i, &sk_fds[i],
 					  BPF_NOEXIST);
-		RET_IF(err == -1, "update_elem(reuseport_array)",
+		RET_IF(err < 0, "update_elem(reuseport_array)",
 		       "sk_fds[%d] err:%d errno:%d\n", i, err, errno);
 
 		if (i == first) {
@@ -682,7 +683,7 @@ static void setup_per_test(int type, sa_family_t family, bool inany,
 	prepare_sk_fds(type, family, inany);
 	err = bpf_map_update_elem(tmp_index_ovr_map, &index_zero, &ovr,
 				  BPF_ANY);
-	RET_IF(err == -1, "update_elem(tmp_index_ovr_map, 0, -1)",
+	RET_IF(err < 0, "update_elem(tmp_index_ovr_map, 0, -1)",
 	       "err:%d errno:%d\n", err, errno);
 
 	/* Install reuseport_array to outer_map? */
@@ -691,7 +692,7 @@ static void setup_per_test(int type, sa_family_t family, bool inany,
 
 	err = bpf_map_update_elem(outer_map, &index_zero, &reuseport_array,
 				  BPF_ANY);
-	RET_IF(err == -1, "update_elem(outer_map, 0, reuseport_array)",
+	RET_IF(err < 0, "update_elem(outer_map, 0, reuseport_array)",
 	       "err:%d errno:%d\n", err, errno);
 }
 
@@ -720,18 +721,18 @@ static void cleanup_per_test(bool no_inner_map)
 		return;
 
 	err = bpf_map_delete_elem(outer_map, &index_zero);
-	RET_IF(err == -1, "delete_elem(outer_map)",
+	RET_IF(err < 0, "delete_elem(outer_map)",
 	       "err:%d errno:%d\n", err, errno);
 }
 
 static void cleanup(void)
 {
-	if (outer_map != -1) {
+	if (outer_map >= 0) {
 		close(outer_map);
 		outer_map = -1;
 	}
 
-	if (reuseport_array != -1) {
+	if (reuseport_array >= 0) {
 		close(reuseport_array);
 		reuseport_array = -1;
 	}
diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c
index 7043e6ded0e6..023cc532992d 100644
--- a/tools/testing/selftests/bpf/prog_tests/send_signal.c
+++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c
@@ -2,7 +2,7 @@
 #include <test_progs.h>
 #include "test_send_signal_kern.skel.h"
 
-static volatile int sigusr1_received = 0;
+int sigusr1_received = 0;
 
 static void sigusr1_handler(int signum)
 {
@@ -91,8 +91,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
 
 		skel->links.send_signal_perf =
 			bpf_program__attach_perf_event(skel->progs.send_signal_perf, pmu_fd);
-		if (CHECK(IS_ERR(skel->links.send_signal_perf), "attach_perf_event",
-			  "err %ld\n", PTR_ERR(skel->links.send_signal_perf)))
+		if (!ASSERT_OK_PTR(skel->links.send_signal_perf, "attach_perf_event"))
 			goto disable_pmu;
 	}
 
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
index 45c82db3c58c..aee41547e7f4 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
@@ -480,7 +480,7 @@ static struct bpf_link *attach_lookup_prog(struct bpf_program *prog)
 	}
 
 	link = bpf_program__attach_netns(prog, net_fd);
-	if (CHECK(IS_ERR(link), "bpf_program__attach_netns", "failed\n")) {
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_netns")) {
 		errno = -PTR_ERR(link);
 		log_err("failed to attach program '%s' to netns",
 			bpf_program__name(prog));
diff --git a/tools/testing/selftests/bpf/prog_tests/skeleton.c b/tools/testing/selftests/bpf/prog_tests/skeleton.c
index fe87b77af459..f6f130c99b8c 100644
--- a/tools/testing/selftests/bpf/prog_tests/skeleton.c
+++ b/tools/testing/selftests/bpf/prog_tests/skeleton.c
@@ -82,10 +82,8 @@ void test_skeleton(void)
 	CHECK(data->out2 != 2, "res2", "got %lld != exp %d\n", data->out2, 2);
 	CHECK(bss->out3 != 3, "res3", "got %d != exp %d\n", (int)bss->out3, 3);
 	CHECK(bss->out4 != 4, "res4", "got %lld != exp %d\n", bss->out4, 4);
-	CHECK(bss->handler_out5.a != 5, "res5", "got %d != exp %d\n",
-	      bss->handler_out5.a, 5);
-	CHECK(bss->handler_out5.b != 6, "res6", "got %lld != exp %d\n",
-	      bss->handler_out5.b, 6);
+	CHECK(bss->out5.a != 5, "res5", "got %d != exp %d\n", bss->out5.a, 5);
+	CHECK(bss->out5.b != 6, "res6", "got %lld != exp %d\n", bss->out5.b, 6);
 	CHECK(bss->out6 != 14, "res7", "got %d != exp %d\n", bss->out6, 14);
 
 	CHECK(bss->bpf_syscall != kcfg->CONFIG_BPF_SYSCALL, "ext1",
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_fields.c b/tools/testing/selftests/bpf/prog_tests/sock_fields.c
index af87118e748e..577d619fb07e 100644
--- a/tools/testing/selftests/bpf/prog_tests/sock_fields.c
+++ b/tools/testing/selftests/bpf/prog_tests/sock_fields.c
@@ -97,12 +97,12 @@ static void check_result(void)
 
 	err = bpf_map_lookup_elem(linum_map_fd, &egress_linum_idx,
 				  &egress_linum);
-	CHECK(err == -1, "bpf_map_lookup_elem(linum_map_fd)",
+	CHECK(err < 0, "bpf_map_lookup_elem(linum_map_fd)",
 	      "err:%d errno:%d\n", err, errno);
 
 	err = bpf_map_lookup_elem(linum_map_fd, &ingress_linum_idx,
 				  &ingress_linum);
-	CHECK(err == -1, "bpf_map_lookup_elem(linum_map_fd)",
+	CHECK(err < 0, "bpf_map_lookup_elem(linum_map_fd)",
 	      "err:%d errno:%d\n", err, errno);
 
 	memcpy(&srv_sk, &skel->bss->srv_sk, sizeof(srv_sk));
@@ -355,14 +355,12 @@ void test_sock_fields(void)
 
 	egress_link = bpf_program__attach_cgroup(skel->progs.egress_read_sock_fields,
 						 child_cg_fd);
-	if (CHECK(IS_ERR(egress_link), "attach_cgroup(egress)", "err:%ld\n",
-		  PTR_ERR(egress_link)))
+	if (!ASSERT_OK_PTR(egress_link, "attach_cgroup(egress)"))
 		goto done;
 
 	ingress_link = bpf_program__attach_cgroup(skel->progs.ingress_read_sock_fields,
 						  child_cg_fd);
-	if (CHECK(IS_ERR(ingress_link), "attach_cgroup(ingress)", "err:%ld\n",
-		  PTR_ERR(ingress_link)))
+	if (!ASSERT_OK_PTR(ingress_link, "attach_cgroup(ingress)"))
 		goto done;
 
 	linum_map_fd = bpf_map__fd(skel->maps.linum_map);
@@ -375,8 +373,8 @@ done:
 	bpf_link__destroy(egress_link);
 	bpf_link__destroy(ingress_link);
 	test_sock_fields__destroy(skel);
-	if (child_cg_fd != -1)
+	if (child_cg_fd >= 0)
 		close(child_cg_fd);
-	if (parent_cg_fd != -1)
+	if (parent_cg_fd >= 0)
 		close(parent_cg_fd);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
index ab77596b64e3..1352ec104149 100644
--- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
@@ -88,11 +88,11 @@ static void test_sockmap_create_update_free(enum bpf_map_type map_type)
 	int s, map, err;
 
 	s = connected_socket_v4();
-	if (CHECK_FAIL(s == -1))
+	if (CHECK_FAIL(s < 0))
 		return;
 
 	map = bpf_create_map(map_type, sizeof(int), sizeof(int), 1, 0);
-	if (CHECK_FAIL(map == -1)) {
+	if (CHECK_FAIL(map < 0)) {
 		perror("bpf_create_map");
 		goto out;
 	}
@@ -245,7 +245,7 @@ static void test_sockmap_copy(enum bpf_map_type map_type)
 	opts.link_info = &linfo;
 	opts.link_info_len = sizeof(linfo);
 	link = bpf_program__attach_iter(skel->progs.copy, &opts);
-	if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
 		goto out;
 
 	iter_fd = bpf_iter_create(bpf_link__fd(link));
@@ -304,7 +304,7 @@ static void test_sockmap_skb_verdict_attach(enum bpf_attach_type first,
 	}
 
 	err = bpf_prog_attach(verdict, map, second, 0);
-	assert(err == -1 && errno == EBUSY);
+	ASSERT_EQ(err, -EBUSY, "prog_attach_fail");
 
 	err = bpf_prog_detach2(verdict, map, first);
 	if (CHECK_FAIL(err)) {
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
index 06b86addc181..7a0d64fdc192 100644
--- a/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
@@ -98,7 +98,7 @@ static void run_tests(int family, enum bpf_map_type map_type)
 	int map;
 
 	map = bpf_create_map(map_type, sizeof(int), sizeof(int), 1, 0);
-	if (CHECK_FAIL(map == -1)) {
+	if (CHECK_FAIL(map < 0)) {
 		perror("bpf_map_create");
 		return;
 	}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
index 648d9ae898d2..515229f24a93 100644
--- a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
@@ -139,7 +139,7 @@
 #define xbpf_map_delete_elem(fd, key)                                          \
 	({                                                                     \
 		int __ret = bpf_map_delete_elem((fd), (key));                  \
-		if (__ret == -1)                                               \
+		if (__ret < 0)                                               \
 			FAIL_ERRNO("map_delete");                              \
 		__ret;                                                         \
 	})
@@ -147,7 +147,7 @@
 #define xbpf_map_lookup_elem(fd, key, val)                                     \
 	({                                                                     \
 		int __ret = bpf_map_lookup_elem((fd), (key), (val));           \
-		if (__ret == -1)                                               \
+		if (__ret < 0)                                               \
 			FAIL_ERRNO("map_lookup");                              \
 		__ret;                                                         \
 	})
@@ -155,7 +155,7 @@
 #define xbpf_map_update_elem(fd, key, val, flags)                              \
 	({                                                                     \
 		int __ret = bpf_map_update_elem((fd), (key), (val), (flags));  \
-		if (__ret == -1)                                               \
+		if (__ret < 0)                                               \
 			FAIL_ERRNO("map_update");                              \
 		__ret;                                                         \
 	})
@@ -164,7 +164,7 @@
 	({                                                                     \
 		int __ret =                                                    \
 			bpf_prog_attach((prog), (target), (type), (flags));    \
-		if (__ret == -1)                                               \
+		if (__ret < 0)                                               \
 			FAIL_ERRNO("prog_attach(" #type ")");                  \
 		__ret;                                                         \
 	})
@@ -172,7 +172,7 @@
 #define xbpf_prog_detach2(prog, target, type)                                  \
 	({                                                                     \
 		int __ret = bpf_prog_detach2((prog), (target), (type));        \
-		if (__ret == -1)                                               \
+		if (__ret < 0)                                               \
 			FAIL_ERRNO("prog_detach2(" #type ")");                 \
 		__ret;                                                         \
 	})
@@ -1610,6 +1610,7 @@ static void udp_redir_to_connected(int family, int sotype, int sock_mapfd,
 	struct sockaddr_storage addr;
 	int c0, c1, p0, p1;
 	unsigned int pass;
+	int retries = 100;
 	socklen_t len;
 	int err, n;
 	u64 value;
@@ -1686,9 +1687,13 @@ static void udp_redir_to_connected(int family, int sotype, int sock_mapfd,
 	if (pass != 1)
 		FAIL("%s: want pass count 1, have %d", log_prefix, pass);
 
+again:
 	n = read(mode == REDIR_INGRESS ? p0 : c0, &b, 1);
-	if (n < 0)
+	if (n < 0) {
+		if (errno == EAGAIN && retries--)
+			goto again;
 		FAIL_ERRNO("%s: read", log_prefix);
+	}
 	if (n == 0)
 		FAIL("%s: incomplete read", log_prefix);
 
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 11a769e18f5d..0a91d8d9954b 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
@@ -62,8 +62,7 @@ retry:
 
 	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
 							   pmu_fd);
-	if (CHECK(IS_ERR(skel->links.oncpu), "attach_perf_event",
-		  "err %ld\n", PTR_ERR(skel->links.oncpu))) {
+	if (!ASSERT_OK_PTR(skel->links.oncpu, "attach_perf_event")) {
 		close(pmu_fd);
 		goto cleanup;
 	}
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c
index 37269d23df93..04b476bd62b9 100644
--- a/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c
@@ -21,7 +21,7 @@ void test_stacktrace_map(void)
 		goto close_prog;
 
 	link = bpf_program__attach_tracepoint(prog, "sched", "sched_switch");
-	if (CHECK(IS_ERR(link), "attach_tp", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_tp"))
 		goto close_prog;
 
 	/* find map fds */
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c
index 404a5498e1a3..4fd30bb651ad 100644
--- a/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c
@@ -21,7 +21,7 @@ void test_stacktrace_map_raw_tp(void)
 		goto close_prog;
 
 	link = bpf_program__attach_raw_tracepoint(prog, "sched_switch");
-	if (CHECK(IS_ERR(link), "attach_raw_tp", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
 		goto close_prog;
 
 	/* find map fds */
@@ -59,7 +59,6 @@ void test_stacktrace_map_raw_tp(void)
 		goto close_prog;
 
 close_prog:
-	if (!IS_ERR_OR_NULL(link))
-		bpf_link__destroy(link);
+	bpf_link__destroy(link);
 	bpf_object__close(obj);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/static_linked.c b/tools/testing/selftests/bpf/prog_tests/static_linked.c
index 46556976dccc..5c4e3014e063 100644
--- a/tools/testing/selftests/bpf/prog_tests/static_linked.c
+++ b/tools/testing/selftests/bpf/prog_tests/static_linked.c
@@ -14,12 +14,7 @@ void test_static_linked(void)
 		return;
 
 	skel->rodata->rovar1 = 1;
-	skel->bss->static_var1 = 2;
-	skel->bss->static_var11 = 3;
-
 	skel->rodata->rovar2 = 4;
-	skel->bss->static_var2 = 5;
-	skel->bss->static_var22 = 6;
 
 	err = test_static_linked__load(skel);
 	if (!ASSERT_OK(err, "skel_load"))
@@ -32,8 +27,8 @@ void test_static_linked(void)
 	/* trigger */
 	usleep(1);
 
-	ASSERT_EQ(skel->bss->var1, 1 * 2 + 2 + 3, "var1");
-	ASSERT_EQ(skel->bss->var2, 4 * 3 + 5 + 6, "var2");
+	ASSERT_EQ(skel->data->var1, 1 * 2 + 2 + 3, "var1");
+	ASSERT_EQ(skel->data->var2, 4 * 3 + 5 + 6, "var2");
 
 cleanup:
 	test_static_linked__destroy(skel);
diff --git a/tools/testing/selftests/bpf/prog_tests/syscall.c b/tools/testing/selftests/bpf/prog_tests/syscall.c
new file mode 100644
index 000000000000..81e997a69f7a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/syscall.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "syscall.skel.h"
+
+struct args {
+	__u64 log_buf;
+	__u32 log_size;
+	int max_entries;
+	int map_fd;
+	int prog_fd;
+	int btf_fd;
+};
+
+void test_syscall(void)
+{
+	static char verifier_log[8192];
+	struct args ctx = {
+		.max_entries = 1024,
+		.log_buf = (uintptr_t) verifier_log,
+		.log_size = sizeof(verifier_log),
+	};
+	struct bpf_prog_test_run_attr tattr = {
+		.ctx_in = &ctx,
+		.ctx_size_in = sizeof(ctx),
+	};
+	struct syscall *skel = NULL;
+	__u64 key = 12, value = 0;
+	int err;
+
+	skel = syscall__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	tattr.prog_fd = bpf_program__fd(skel->progs.bpf_prog);
+	err = bpf_prog_test_run_xattr(&tattr);
+	ASSERT_EQ(err, 0, "err");
+	ASSERT_EQ(tattr.retval, 1, "retval");
+	ASSERT_GT(ctx.map_fd, 0, "ctx.map_fd");
+	ASSERT_GT(ctx.prog_fd, 0, "ctx.prog_fd");
+	ASSERT_OK(memcmp(verifier_log, "processed", sizeof("processed") - 1),
+		  "verifier_log");
+
+	err = bpf_map_lookup_elem(ctx.map_fd, &key, &value);
+	ASSERT_EQ(err, 0, "map_lookup");
+	ASSERT_EQ(value, 34, "map lookup value");
+cleanup:
+	syscall__destroy(skel);
+	if (ctx.prog_fd > 0)
+		close(ctx.prog_fd);
+	if (ctx.map_fd > 0)
+		close(ctx.map_fd);
+	if (ctx.btf_fd > 0)
+		close(ctx.btf_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_bpf.c b/tools/testing/selftests/bpf/prog_tests/tc_bpf.c
new file mode 100644
index 000000000000..4a505a5adf4d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_bpf.c
@@ -0,0 +1,395 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include <linux/pkt_cls.h>
+
+#include "test_tc_bpf.skel.h"
+
+#define LO_IFINDEX 1
+
+#define TEST_DECLARE_OPTS(__fd)                                                                   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_h, .handle = 1);                                     \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_p, .priority = 1);                                   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_f, .prog_fd = __fd);                                 \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hp, .handle = 1, .priority = 1);                     \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hf, .handle = 1, .prog_fd = __fd);                   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_pf, .priority = 1, .prog_fd = __fd);                 \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpf, .handle = 1, .priority = 1, .prog_fd = __fd);   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpi, .handle = 1, .priority = 1, .prog_id = 42);     \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpr, .handle = 1, .priority = 1,                     \
+			    .flags = BPF_TC_F_REPLACE);                                            \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpfi, .handle = 1, .priority = 1, .prog_fd = __fd,   \
+			    .prog_id = 42);                                                        \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_prio_max, .handle = 1, .priority = UINT16_MAX + 1);
+
+static int test_tc_bpf_basic(const struct bpf_tc_hook *hook, int fd)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts, .handle = 1, .priority = 1, .prog_fd = fd);
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	int ret;
+
+	ret = bpf_obj_get_info_by_fd(fd, &info, &info_len);
+	if (!ASSERT_OK(ret, "bpf_obj_get_info_by_fd"))
+		return ret;
+
+	ret = bpf_tc_attach(hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach"))
+		return ret;
+
+	if (!ASSERT_EQ(opts.handle, 1, "handle set") ||
+	    !ASSERT_EQ(opts.priority, 1, "priority set") ||
+	    !ASSERT_EQ(opts.prog_id, info.id, "prog_id set"))
+		goto end;
+
+	opts.prog_id = 0;
+	opts.flags = BPF_TC_F_REPLACE;
+	ret = bpf_tc_attach(hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach replace mode"))
+		goto end;
+
+	opts.flags = opts.prog_fd = opts.prog_id = 0;
+	ret = bpf_tc_query(hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_query"))
+		goto end;
+
+	if (!ASSERT_EQ(opts.handle, 1, "handle set") ||
+	    !ASSERT_EQ(opts.priority, 1, "priority set") ||
+	    !ASSERT_EQ(opts.prog_id, info.id, "prog_id set"))
+		goto end;
+
+end:
+	opts.flags = opts.prog_fd = opts.prog_id = 0;
+	ret = bpf_tc_detach(hook, &opts);
+	ASSERT_OK(ret, "bpf_tc_detach");
+	return ret;
+}
+
+static int test_tc_bpf_api(struct bpf_tc_hook *hook, int fd)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, attach_opts, .handle = 1, .priority = 1, .prog_fd = fd);
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, inv_hook, .attach_point = BPF_TC_INGRESS);
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts, .handle = 1, .priority = 1);
+	int ret;
+
+	ret = bpf_tc_hook_create(NULL);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook = NULL"))
+		return -EINVAL;
+
+	/* hook ifindex = 0 */
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook ifindex == 0"))
+		return -EINVAL;
+	attach_opts.prog_id = 0;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	/* hook ifindex < 0 */
+	inv_hook.ifindex = -1;
+
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook ifindex < 0"))
+		return -EINVAL;
+	attach_opts.prog_id = 0;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	inv_hook.ifindex = LO_IFINDEX;
+
+	/* hook.attach_point invalid */
+	inv_hook.attach_point = 0xabcd;
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook.attach_point"))
+		return -EINVAL;
+
+	inv_hook.attach_point = BPF_TC_INGRESS;
+
+	/* hook.attach_point valid, but parent invalid */
+	inv_hook.parent = TC_H_MAKE(1UL << 16, 10);
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook parent"))
+		return -EINVAL;
+
+	inv_hook.attach_point = BPF_TC_CUSTOM;
+	inv_hook.parent = 0;
+	/* These return EOPNOTSUPP instead of EINVAL as parent is checked after
+	 * attach_point of the hook.
+	 */
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_create invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_destroy invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook parent"))
+		return -EINVAL;
+
+	inv_hook.attach_point = BPF_TC_INGRESS;
+
+	/* detach */
+	{
+		TEST_DECLARE_OPTS(fd);
+
+		ret = bpf_tc_detach(NULL, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid opts = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_hpr);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid flags set"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_hpf);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid prog_fd set"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_hpi);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid prog_id set"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_p);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid handle unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_h);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid priority unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_prio_max);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid priority > UINT16_MAX"))
+			return -EINVAL;
+	}
+
+	/* query */
+	{
+		TEST_DECLARE_OPTS(fd);
+
+		ret = bpf_tc_query(NULL, &opts);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid opts = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_hpr);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid flags set"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_hpf);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid prog_fd set"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_hpi);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid prog_id set"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_p);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid handle unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_h);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid priority unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_prio_max);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid priority > UINT16_MAX"))
+			return -EINVAL;
+
+		/* when chain is not present, kernel returns -EINVAL */
+		ret = bpf_tc_query(hook, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query valid handle, priority set"))
+			return -EINVAL;
+	}
+
+	/* attach */
+	{
+		TEST_DECLARE_OPTS(fd);
+
+		ret = bpf_tc_attach(NULL, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid opts = NULL"))
+			return -EINVAL;
+
+		opts_hp.flags = 42;
+		ret = bpf_tc_attach(hook, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid flags"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid prog_fd unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, &opts_hpi);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid prog_id set"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, &opts_pf);
+		if (!ASSERT_OK(ret, "bpf_tc_attach valid handle unset"))
+			return -EINVAL;
+		opts_pf.prog_fd = opts_pf.prog_id = 0;
+		ASSERT_OK(bpf_tc_detach(hook, &opts_pf), "bpf_tc_detach");
+
+		ret = bpf_tc_attach(hook, &opts_hf);
+		if (!ASSERT_OK(ret, "bpf_tc_attach valid priority unset"))
+			return -EINVAL;
+		opts_hf.prog_fd = opts_hf.prog_id = 0;
+		ASSERT_OK(bpf_tc_detach(hook, &opts_hf), "bpf_tc_detach");
+
+		ret = bpf_tc_attach(hook, &opts_prio_max);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid priority > UINT16_MAX"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, &opts_f);
+		if (!ASSERT_OK(ret, "bpf_tc_attach valid both handle and priority unset"))
+			return -EINVAL;
+		opts_f.prog_fd = opts_f.prog_id = 0;
+		ASSERT_OK(bpf_tc_detach(hook, &opts_f), "bpf_tc_detach");
+	}
+
+	return 0;
+}
+
+void test_tc_bpf(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, .ifindex = LO_IFINDEX,
+			    .attach_point = BPF_TC_INGRESS);
+	struct test_tc_bpf *skel = NULL;
+	bool hook_created = false;
+	int cls_fd, ret;
+
+	skel = test_tc_bpf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tc_bpf__open_and_load"))
+		return;
+
+	cls_fd = bpf_program__fd(skel->progs.cls);
+
+	ret = bpf_tc_hook_create(&hook);
+	if (ret == 0)
+		hook_created = true;
+
+	ret = ret == -EEXIST ? 0 : ret;
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create(BPF_TC_INGRESS)"))
+		goto end;
+
+	hook.attach_point = BPF_TC_CUSTOM;
+	hook.parent = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
+	ret = bpf_tc_hook_create(&hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_create invalid hook.attach_point"))
+		goto end;
+
+	ret = test_tc_bpf_basic(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_internal ingress"))
+		goto end;
+
+	ret = bpf_tc_hook_destroy(&hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_destroy invalid hook.attach_point"))
+		goto end;
+
+	hook.attach_point = BPF_TC_INGRESS;
+	hook.parent = 0;
+	bpf_tc_hook_destroy(&hook);
+
+	ret = test_tc_bpf_basic(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_internal ingress"))
+		goto end;
+
+	bpf_tc_hook_destroy(&hook);
+
+	hook.attach_point = BPF_TC_EGRESS;
+	ret = test_tc_bpf_basic(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_internal egress"))
+		goto end;
+
+	bpf_tc_hook_destroy(&hook);
+
+	ret = test_tc_bpf_api(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_bpf_api"))
+		goto end;
+
+	bpf_tc_hook_destroy(&hook);
+
+end:
+	if (hook_created) {
+		hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+		bpf_tc_hook_destroy(&hook);
+	}
+	test_tc_bpf__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c b/tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c
index 08d19cafd5e8..1fa772079967 100644
--- a/tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c
+++ b/tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c
@@ -353,8 +353,7 @@ static void fastopen_estab(void)
 		return;
 
 	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
-	if (CHECK(IS_ERR(link), "attach_cgroup(estab)", "err: %ld\n",
-		  PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
 		return;
 
 	if (sk_fds_connect(&sk_fds, true)) {
@@ -398,8 +397,7 @@ static void syncookie_estab(void)
 		return;
 
 	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
-	if (CHECK(IS_ERR(link), "attach_cgroup(estab)", "err: %ld\n",
-		  PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
 		return;
 
 	if (sk_fds_connect(&sk_fds, false)) {
@@ -431,8 +429,7 @@ static void fin(void)
 		return;
 
 	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
-	if (CHECK(IS_ERR(link), "attach_cgroup(estab)", "err: %ld\n",
-		  PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
 		return;
 
 	if (sk_fds_connect(&sk_fds, false)) {
@@ -471,8 +468,7 @@ static void __simple_estab(bool exprm)
 		return;
 
 	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
-	if (CHECK(IS_ERR(link), "attach_cgroup(estab)", "err: %ld\n",
-		  PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
 		return;
 
 	if (sk_fds_connect(&sk_fds, false)) {
@@ -509,8 +505,7 @@ static void misc(void)
 		return;
 
 	link = bpf_program__attach_cgroup(misc_skel->progs.misc_estab, cg_fd);
-	if (CHECK(IS_ERR(link), "attach_cgroup(misc_estab)", "err: %ld\n",
-		  PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(misc_estab)"))
 		return;
 
 	if (sk_fds_connect(&sk_fds, false)) {
diff --git a/tools/testing/selftests/bpf/prog_tests/test_overhead.c b/tools/testing/selftests/bpf/prog_tests/test_overhead.c
index 9966685866fd..123c68c1917d 100644
--- a/tools/testing/selftests/bpf/prog_tests/test_overhead.c
+++ b/tools/testing/selftests/bpf/prog_tests/test_overhead.c
@@ -73,7 +73,7 @@ void test_test_overhead(void)
 		return;
 
 	obj = bpf_object__open_file("./test_overhead.o", NULL);
-	if (CHECK(IS_ERR(obj), "obj_open_file", "err %ld\n", PTR_ERR(obj)))
+	if (!ASSERT_OK_PTR(obj, "obj_open_file"))
 		return;
 
 	kprobe_prog = bpf_object__find_program_by_title(obj, kprobe_name);
@@ -108,7 +108,7 @@ void test_test_overhead(void)
 	/* attach kprobe */
 	link = bpf_program__attach_kprobe(kprobe_prog, false /* retprobe */,
 					  kprobe_func);
-	if (CHECK(IS_ERR(link), "attach_kprobe", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_kprobe"))
 		goto cleanup;
 	test_run("kprobe");
 	bpf_link__destroy(link);
@@ -116,28 +116,28 @@ void test_test_overhead(void)
 	/* attach kretprobe */
 	link = bpf_program__attach_kprobe(kretprobe_prog, true /* retprobe */,
 					  kprobe_func);
-	if (CHECK(IS_ERR(link), "attach kretprobe", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_kretprobe"))
 		goto cleanup;
 	test_run("kretprobe");
 	bpf_link__destroy(link);
 
 	/* attach raw_tp */
 	link = bpf_program__attach_raw_tracepoint(raw_tp_prog, "task_rename");
-	if (CHECK(IS_ERR(link), "attach fentry", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
 		goto cleanup;
 	test_run("raw_tp");
 	bpf_link__destroy(link);
 
 	/* attach fentry */
 	link = bpf_program__attach_trace(fentry_prog);
-	if (CHECK(IS_ERR(link), "attach fentry", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_fentry"))
 		goto cleanup;
 	test_run("fentry");
 	bpf_link__destroy(link);
 
 	/* attach fexit */
 	link = bpf_program__attach_trace(fexit_prog);
-	if (CHECK(IS_ERR(link), "attach fexit", "err %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "attach_fexit"))
 		goto cleanup;
 	test_run("fexit");
 	bpf_link__destroy(link);
diff --git a/tools/testing/selftests/bpf/prog_tests/trace_printk.c b/tools/testing/selftests/bpf/prog_tests/trace_printk.c
index 39b0decb1bb2..d39bc00feb45 100644
--- a/tools/testing/selftests/bpf/prog_tests/trace_printk.c
+++ b/tools/testing/selftests/bpf/prog_tests/trace_printk.c
@@ -3,7 +3,7 @@
 
 #include <test_progs.h>
 
-#include "trace_printk.skel.h"
+#include "trace_printk.lskel.h"
 
 #define TRACEBUF	"/sys/kernel/debug/tracing/trace_pipe"
 #define SEARCHMSG	"testing,testing"
@@ -21,6 +21,9 @@ void test_trace_printk(void)
 	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
 		return;
 
+	ASSERT_EQ(skel->rodata->fmt[0], 'T', "invalid printk fmt string");
+	skel->rodata->fmt[0] = 't';
+
 	err = trace_printk__load(skel);
 	if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
 		goto cleanup;
diff --git a/tools/testing/selftests/bpf/prog_tests/trampoline_count.c b/tools/testing/selftests/bpf/prog_tests/trampoline_count.c
index f3022d934e2d..d7f5a931d7f3 100644
--- a/tools/testing/selftests/bpf/prog_tests/trampoline_count.c
+++ b/tools/testing/selftests/bpf/prog_tests/trampoline_count.c
@@ -55,7 +55,7 @@ void test_trampoline_count(void)
 	/* attach 'allowed' trampoline programs */
 	for (i = 0; i < MAX_TRAMP_PROGS; i++) {
 		obj = bpf_object__open_file(object, NULL);
-		if (CHECK(IS_ERR(obj), "obj_open_file", "err %ld\n", PTR_ERR(obj))) {
+		if (!ASSERT_OK_PTR(obj, "obj_open_file")) {
 			obj = NULL;
 			goto cleanup;
 		}
@@ -68,14 +68,14 @@ void test_trampoline_count(void)
 
 		if (rand() % 2) {
 			link = load(inst[i].obj, fentry_name);
-			if (CHECK(IS_ERR(link), "attach prog", "err %ld\n", PTR_ERR(link))) {
+			if (!ASSERT_OK_PTR(link, "attach_prog")) {
 				link = NULL;
 				goto cleanup;
 			}
 			inst[i].link_fentry = link;
 		} else {
 			link = load(inst[i].obj, fexit_name);
-			if (CHECK(IS_ERR(link), "attach prog", "err %ld\n", PTR_ERR(link))) {
+			if (!ASSERT_OK_PTR(link, "attach_prog")) {
 				link = NULL;
 				goto cleanup;
 			}
@@ -85,7 +85,7 @@ void test_trampoline_count(void)
 
 	/* and try 1 extra.. */
 	obj = bpf_object__open_file(object, NULL);
-	if (CHECK(IS_ERR(obj), "obj_open_file", "err %ld\n", PTR_ERR(obj))) {
+	if (!ASSERT_OK_PTR(obj, "obj_open_file")) {
 		obj = NULL;
 		goto cleanup;
 	}
@@ -96,13 +96,15 @@ void test_trampoline_count(void)
 
 	/* ..that needs to fail */
 	link = load(obj, fentry_name);
-	if (CHECK(!IS_ERR(link), "cannot attach over the limit", "err %ld\n", PTR_ERR(link))) {
+	err = libbpf_get_error(link);
+	if (!ASSERT_ERR_PTR(link, "cannot attach over the limit")) {
 		bpf_link__destroy(link);
 		goto cleanup_extra;
 	}
 
 	/* with E2BIG error */
-	CHECK(PTR_ERR(link) != -E2BIG, "proper error check", "err %ld\n", PTR_ERR(link));
+	ASSERT_EQ(err, -E2BIG, "proper error check");
+	ASSERT_EQ(link, NULL, "ptr_is_null");
 
 	/* and finaly execute the probe */
 	if (CHECK_FAIL(prctl(PR_GET_NAME, comm, 0L, 0L, 0L)))
diff --git a/tools/testing/selftests/bpf/prog_tests/udp_limit.c b/tools/testing/selftests/bpf/prog_tests/udp_limit.c
index 2aba09d4d01b..56c9d6bd38a3 100644
--- a/tools/testing/selftests/bpf/prog_tests/udp_limit.c
+++ b/tools/testing/selftests/bpf/prog_tests/udp_limit.c
@@ -22,11 +22,10 @@ void test_udp_limit(void)
 		goto close_cgroup_fd;
 
 	skel->links.sock = bpf_program__attach_cgroup(skel->progs.sock, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.sock, "cg_attach_sock"))
+		goto close_skeleton;
 	skel->links.sock_release = bpf_program__attach_cgroup(skel->progs.sock_release, cgroup_fd);
-	if (CHECK(IS_ERR(skel->links.sock) || IS_ERR(skel->links.sock_release),
-		  "cg-attach", "sock %ld sock_release %ld",
-		  PTR_ERR(skel->links.sock),
-		  PTR_ERR(skel->links.sock_release)))
+	if (!ASSERT_OK_PTR(skel->links.sock_release, "cg_attach_sock_release"))
 		goto close_skeleton;
 
 	/* BPF program enforces a single UDP socket per cgroup,
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c
index 2c6c570b21f8..3bd5904b4db5 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c
@@ -90,7 +90,7 @@ void test_xdp_bpf2bpf(void)
 	pb_opts.ctx = &passed;
 	pb = perf_buffer__new(bpf_map__fd(ftrace_skel->maps.perf_buf_map),
 			      1, &pb_opts);
-	if (CHECK(IS_ERR(pb), "perf_buf__new", "err %ld\n", PTR_ERR(pb)))
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
 		goto out;
 
 	/* Run test program */
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_link.c b/tools/testing/selftests/bpf/prog_tests/xdp_link.c
index 6f814999b395..46eed0a33c23 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_link.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_link.c
@@ -51,7 +51,7 @@ void test_xdp_link(void)
 
 	/* BPF link is not allowed to replace prog attachment */
 	link = bpf_program__attach_xdp(skel1->progs.xdp_handler, IFINDEX_LO);
-	if (CHECK(!IS_ERR(link), "link_attach_fail", "unexpected success\n")) {
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
 		bpf_link__destroy(link);
 		/* best-effort detach prog */
 		opts.old_fd = prog_fd1;
@@ -67,7 +67,7 @@ void test_xdp_link(void)
 
 	/* now BPF link should attach successfully */
 	link = bpf_program__attach_xdp(skel1->progs.xdp_handler, IFINDEX_LO);
-	if (CHECK(IS_ERR(link), "link_attach", "failed: %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "link_attach"))
 		goto cleanup;
 	skel1->links.xdp_handler = link;
 
@@ -95,7 +95,7 @@ void test_xdp_link(void)
 
 	/* BPF link is not allowed to replace another BPF link */
 	link = bpf_program__attach_xdp(skel2->progs.xdp_handler, IFINDEX_LO);
-	if (CHECK(!IS_ERR(link), "link_attach_fail", "unexpected success\n")) {
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
 		bpf_link__destroy(link);
 		goto cleanup;
 	}
@@ -105,7 +105,7 @@ void test_xdp_link(void)
 
 	/* new link attach should succeed */
 	link = bpf_program__attach_xdp(skel2->progs.xdp_handler, IFINDEX_LO);
-	if (CHECK(IS_ERR(link), "link_attach", "failed: %ld\n", PTR_ERR(link)))
+	if (!ASSERT_OK_PTR(link, "link_attach"))
 		goto cleanup;
 	skel2->links.xdp_handler = link;
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c
index 6dfce3fd68bc..0aa3cd34cbe3 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2020 Facebook */
 #include "bpf_iter.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_map.c
index b83b5d2e17dc..6c39e86b666f 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_map.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_map.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2020 Facebook */
 #include "bpf_iter.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c
index d58d9f1642b5..784a610ce039 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c
@@ -3,7 +3,6 @@
 #include "bpf_iter.h"
 #include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c b/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c
index 95989f4c99b5..a28e51e2dcee 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c
@@ -3,7 +3,6 @@
 #include "bpf_iter.h"
 #include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task.c b/tools/testing/selftests/bpf/progs/bpf_iter_task.c
index b7f32c160f4e..c86b93f33b32 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_task.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2020 Facebook */
 #include "bpf_iter.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_btf.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_btf.c
index a1ddc36f13ec..bca8b889cb10 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_task_btf.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_btf.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2020, Oracle and/or its affiliates. */
 #include "bpf_iter.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 #include <bpf/bpf_core_read.h>
 
 #include <errno.h>
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
index b2f7c7c5f952..6e7b400888fe 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2020 Facebook */
 #include "bpf_iter.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c
index 43c36f5f7649..f2b8167b72a8 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2020 Facebook */
 #include "bpf_iter.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c
index 11d1aa37cf11..4ea6a37d1345 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2020 Facebook */
 #include "bpf_iter.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c b/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c
index 54380c5e1069..2e4775c35414 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c
@@ -3,7 +3,6 @@
 #include "bpf_iter.h"
 #include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 #include <bpf/bpf_endian.h>
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c b/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c
index b4fbddfa4e10..943f7bba180e 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c
@@ -3,7 +3,6 @@
 #include "bpf_iter.h"
 #include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 #include <bpf/bpf_endian.h>
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern4.c b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern4.c
index ee49493dc125..400fdf8d6233 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern4.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern4.c
@@ -9,8 +9,8 @@ __u32 map1_id = 0, map2_id = 0;
 __u32 map1_accessed = 0, map2_accessed = 0;
 __u64 map1_seqnum = 0, map2_seqnum1 = 0, map2_seqnum2 = 0;
 
-static volatile const __u32 print_len;
-static volatile const __u32 ret1;
+volatile const __u32 print_len;
+volatile const __u32 ret1;
 
 SEC("iter/bpf_map")
 int dump_bpf_map(struct bpf_iter__bpf_map *ctx)
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c b/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c
index f258583afbbd..cf0c485b1ed7 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c
@@ -3,7 +3,6 @@
 #include "bpf_iter.h"
 #include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 #include <bpf/bpf_endian.h>
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c b/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c
index 65f93bb03f0f..5031e21c433f 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c
@@ -3,7 +3,6 @@
 #include "bpf_iter.h"
 #include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 #include <bpf/bpf_endian.h>
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kfree_skb.c b/tools/testing/selftests/bpf/progs/kfree_skb.c
index a46a264ce24e..55e283050cab 100644
--- a/tools/testing/selftests/bpf/progs/kfree_skb.c
+++ b/tools/testing/selftests/bpf/progs/kfree_skb.c
@@ -109,10 +109,10 @@ int BPF_PROG(trace_kfree_skb, struct sk_buff *skb, void *location)
 	return 0;
 }
 
-static volatile struct {
+struct {
 	bool fentry_test_ok;
 	bool fexit_test_ok;
-} result;
+} result = {};
 
 SEC("fentry/eth_type_trans")
 int BPF_PROG(fentry_eth_type_trans, struct sk_buff *skb, struct net_device *dev,
diff --git a/tools/testing/selftests/bpf/progs/linked_maps1.c b/tools/testing/selftests/bpf/progs/linked_maps1.c
index 52291515cc72..00bf1ca95986 100644
--- a/tools/testing/selftests/bpf/progs/linked_maps1.c
+++ b/tools/testing/selftests/bpf/progs/linked_maps1.c
@@ -75,7 +75,7 @@ int BPF_PROG(handler_exit1)
 	val = bpf_map_lookup_elem(&map_weak, &key);
 	if (val)
 		output_weak1 = *val;
-	
+
 	return 0;
 }
 
diff --git a/tools/testing/selftests/bpf/progs/syscall.c b/tools/testing/selftests/bpf/progs/syscall.c
new file mode 100644
index 000000000000..e550f728962d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/syscall.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <../../../tools/include/linux/filter.h>
+#include <linux/btf.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct args {
+	__u64 log_buf;
+	__u32 log_size;
+	int max_entries;
+	int map_fd;
+	int prog_fd;
+	int btf_fd;
+};
+
+#define BTF_INFO_ENC(kind, kind_flag, vlen) \
+	((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
+#define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type)
+#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \
+	((encoding) << 24 | (bits_offset) << 16 | (nr_bits))
+#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \
+	BTF_INT_ENC(encoding, bits_offset, bits)
+
+static int btf_load(void)
+{
+	struct btf_blob {
+		struct btf_header btf_hdr;
+		__u32 types[8];
+		__u32 str;
+	} raw_btf = {
+		.btf_hdr = {
+			.magic = BTF_MAGIC,
+			.version = BTF_VERSION,
+			.hdr_len = sizeof(struct btf_header),
+			.type_len = sizeof(__u32) * 8,
+			.str_off = sizeof(__u32) * 8,
+			.str_len = sizeof(__u32),
+		},
+		.types = {
+			/* long */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8),  /* [1] */
+			/* unsigned long */
+			BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),  /* [2] */
+		},
+	};
+	static union bpf_attr btf_load_attr = {
+		.btf_size = sizeof(raw_btf),
+	};
+
+	btf_load_attr.btf = (long)&raw_btf;
+	return bpf_sys_bpf(BPF_BTF_LOAD, &btf_load_attr, sizeof(btf_load_attr));
+}
+
+SEC("syscall")
+int bpf_prog(struct args *ctx)
+{
+	static char license[] = "GPL";
+	static struct bpf_insn insns[] = {
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_LD_MAP_FD(BPF_REG_1, 0),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	static union bpf_attr map_create_attr = {
+		.map_type = BPF_MAP_TYPE_HASH,
+		.key_size = 8,
+		.value_size = 8,
+		.btf_key_type_id = 1,
+		.btf_value_type_id = 2,
+	};
+	static union bpf_attr map_update_attr = { .map_fd = 1, };
+	static __u64 key = 12;
+	static __u64 value = 34;
+	static union bpf_attr prog_load_attr = {
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.insn_cnt = sizeof(insns) / sizeof(insns[0]),
+	};
+	int ret;
+
+	ret = btf_load();
+	if (ret <= 0)
+		return ret;
+
+	ctx->btf_fd = ret;
+	map_create_attr.max_entries = ctx->max_entries;
+	map_create_attr.btf_fd = ret;
+
+	prog_load_attr.license = (long) license;
+	prog_load_attr.insns = (long) insns;
+	prog_load_attr.log_buf = ctx->log_buf;
+	prog_load_attr.log_size = ctx->log_size;
+	prog_load_attr.log_level = 1;
+
+	ret = bpf_sys_bpf(BPF_MAP_CREATE, &map_create_attr, sizeof(map_create_attr));
+	if (ret <= 0)
+		return ret;
+	ctx->map_fd = ret;
+	insns[3].imm = ret;
+
+	map_update_attr.map_fd = ret;
+	map_update_attr.key = (long) &key;
+	map_update_attr.value = (long) &value;
+	ret = bpf_sys_bpf(BPF_MAP_UPDATE_ELEM, &map_update_attr, sizeof(map_update_attr));
+	if (ret < 0)
+		return ret;
+
+	ret = bpf_sys_bpf(BPF_PROG_LOAD, &prog_load_attr, sizeof(prog_load_attr));
+	if (ret <= 0)
+		return ret;
+	ctx->prog_fd = ret;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/tailcall3.c b/tools/testing/selftests/bpf/progs/tailcall3.c
index 739dc2a51e74..910858fe078a 100644
--- a/tools/testing/selftests/bpf/progs/tailcall3.c
+++ b/tools/testing/selftests/bpf/progs/tailcall3.c
@@ -10,7 +10,7 @@ struct {
 	__uint(value_size, sizeof(__u32));
 } jmp_table SEC(".maps");
 
-static volatile int count;
+int count = 0;
 
 SEC("classifier/0")
 int bpf_func_0(struct __sk_buff *skb)
diff --git a/tools/testing/selftests/bpf/progs/tailcall4.c b/tools/testing/selftests/bpf/progs/tailcall4.c
index f82075b47d7d..bd4be135c39d 100644
--- a/tools/testing/selftests/bpf/progs/tailcall4.c
+++ b/tools/testing/selftests/bpf/progs/tailcall4.c
@@ -10,7 +10,7 @@ struct {
 	__uint(value_size, sizeof(__u32));
 } jmp_table SEC(".maps");
 
-static volatile int selector;
+int selector = 0;
 
 #define TAIL_FUNC(x)				\
 	SEC("classifier/" #x)			\
diff --git a/tools/testing/selftests/bpf/progs/tailcall5.c b/tools/testing/selftests/bpf/progs/tailcall5.c
index ce5450744fd4..adf30a33064e 100644
--- a/tools/testing/selftests/bpf/progs/tailcall5.c
+++ b/tools/testing/selftests/bpf/progs/tailcall5.c
@@ -10,7 +10,7 @@ struct {
 	__uint(value_size, sizeof(__u32));
 } jmp_table SEC(".maps");
 
-static volatile int selector;
+int selector = 0;
 
 #define TAIL_FUNC(x)				\
 	SEC("classifier/" #x)			\
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf2.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf2.c
index 7b1c04183824..3cc4c12817b5 100644
--- a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf2.c
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf2.c
@@ -20,7 +20,7 @@ int subprog_tail(struct __sk_buff *skb)
 	return 1;
 }
 
-static volatile int count;
+int count = 0;
 
 SEC("classifier/0")
 int bpf_func_0(struct __sk_buff *skb)
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
index 9a1b166b7fbe..77df6d4db895 100644
--- a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
@@ -9,7 +9,7 @@ struct {
 	__uint(value_size, sizeof(__u32));
 } jmp_table SEC(".maps");
 
-static volatile int count;
+int count = 0;
 
 __noinline
 int subprog_tail_2(struct __sk_buff *skb)
diff --git a/tools/testing/selftests/bpf/progs/test_check_mtu.c b/tools/testing/selftests/bpf/progs/test_check_mtu.c
index c4a9bae96e75..71184af57749 100644
--- a/tools/testing/selftests/bpf/progs/test_check_mtu.c
+++ b/tools/testing/selftests/bpf/progs/test_check_mtu.c
@@ -11,8 +11,8 @@
 char _license[] SEC("license") = "GPL";
 
 /* Userspace will update with MTU it can see on device */
-static volatile const int GLOBAL_USER_MTU;
-static volatile const __u32 GLOBAL_USER_IFINDEX;
+volatile const int GLOBAL_USER_MTU;
+volatile const __u32 GLOBAL_USER_IFINDEX;
 
 /* BPF-prog will update these with MTU values it can see */
 __u32 global_bpf_mtu_xdp = 0;
diff --git a/tools/testing/selftests/bpf/progs/test_cls_redirect.c b/tools/testing/selftests/bpf/progs/test_cls_redirect.c
index 3c1e042962e6..e2a5acc4785c 100644
--- a/tools/testing/selftests/bpf/progs/test_cls_redirect.c
+++ b/tools/testing/selftests/bpf/progs/test_cls_redirect.c
@@ -39,8 +39,8 @@ char _license[] SEC("license") = "Dual BSD/GPL";
 /**
  * Destination port and IP used for UDP encapsulation.
  */
-static volatile const __be16 ENCAPSULATION_PORT;
-static volatile const __be32 ENCAPSULATION_IP;
+volatile const __be16 ENCAPSULATION_PORT;
+volatile const __be32 ENCAPSULATION_IP;
 
 typedef struct {
 	uint64_t processed_packets_total;
diff --git a/tools/testing/selftests/bpf/progs/test_global_func_args.c b/tools/testing/selftests/bpf/progs/test_global_func_args.c
index cae309538a9e..e712bf77daae 100644
--- a/tools/testing/selftests/bpf/progs/test_global_func_args.c
+++ b/tools/testing/selftests/bpf/progs/test_global_func_args.c
@@ -8,7 +8,7 @@ struct S {
 	int v;
 };
 
-static volatile struct S global_variable;
+struct S global_variable = {};
 
 struct {
 	__uint(type, BPF_MAP_TYPE_ARRAY);
diff --git a/tools/testing/selftests/bpf/progs/test_lookup_and_delete.c b/tools/testing/selftests/bpf/progs/test_lookup_and_delete.c
new file mode 100644
index 000000000000..3a193f42c7e7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lookup_and_delete.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+__u32 set_pid = 0;
+__u64 set_key = 0;
+__u64 set_value = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 2);
+	__type(key, __u64);
+	__type(value, __u64);
+} hash_map SEC(".maps");
+
+SEC("tp/syscalls/sys_enter_getpgid")
+int bpf_lookup_and_delete_test(const void *ctx)
+{
+	if (set_pid == bpf_get_current_pid_tgid() >> 32)
+		bpf_map_update_elem(&hash_map, &set_key, &set_value, BPF_NOEXIST);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_migrate_reuseport.c b/tools/testing/selftests/bpf/progs/test_migrate_reuseport.c
new file mode 100644
index 000000000000..27df571abf5b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_migrate_reuseport.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Check if we can migrate child sockets.
+ *
+ *   1. If reuse_md->migrating_sk is NULL (SYN packet),
+ *        return SK_PASS without selecting a listener.
+ *   2. If reuse_md->migrating_sk is not NULL (socket migration),
+ *        select a listener (reuseport_map[migrate_map[cookie]])
+ *
+ * Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+ */
+
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/in.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+	__uint(max_entries, 256);
+	__type(key, int);
+	__type(value, __u64);
+} reuseport_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 256);
+	__type(key, __u64);
+	__type(value, int);
+} migrate_map SEC(".maps");
+
+int migrated_at_close = 0;
+int migrated_at_close_fastopen = 0;
+int migrated_at_send_synack = 0;
+int migrated_at_recv_ack = 0;
+__be16 server_port;
+
+SEC("xdp")
+int drop_ack(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eth = data;
+	struct tcphdr *tcp = NULL;
+
+	if (eth + 1 > data_end)
+		goto pass;
+
+	switch (bpf_ntohs(eth->h_proto)) {
+	case ETH_P_IP: {
+		struct iphdr *ip = (struct iphdr *)(eth + 1);
+
+		if (ip + 1 > data_end)
+			goto pass;
+
+		if (ip->protocol != IPPROTO_TCP)
+			goto pass;
+
+		tcp = (struct tcphdr *)((void *)ip + ip->ihl * 4);
+		break;
+	}
+	case ETH_P_IPV6: {
+		struct ipv6hdr *ipv6 = (struct ipv6hdr *)(eth + 1);
+
+		if (ipv6 + 1 > data_end)
+			goto pass;
+
+		if (ipv6->nexthdr != IPPROTO_TCP)
+			goto pass;
+
+		tcp = (struct tcphdr *)(ipv6 + 1);
+		break;
+	}
+	default:
+		goto pass;
+	}
+
+	if (tcp + 1 > data_end)
+		goto pass;
+
+	if (tcp->dest != server_port)
+		goto pass;
+
+	if (!tcp->syn && tcp->ack)
+		return XDP_DROP;
+
+pass:
+	return XDP_PASS;
+}
+
+SEC("sk_reuseport/migrate")
+int migrate_reuseport(struct sk_reuseport_md *reuse_md)
+{
+	int *key, flags = 0, state, err;
+	__u64 cookie;
+
+	if (!reuse_md->migrating_sk)
+		return SK_PASS;
+
+	state = reuse_md->migrating_sk->state;
+	cookie = bpf_get_socket_cookie(reuse_md->sk);
+
+	key = bpf_map_lookup_elem(&migrate_map, &cookie);
+	if (!key)
+		return SK_DROP;
+
+	err = bpf_sk_select_reuseport(reuse_md, &reuseport_map, key, flags);
+	if (err)
+		return SK_PASS;
+
+	switch (state) {
+	case BPF_TCP_ESTABLISHED:
+		__sync_fetch_and_add(&migrated_at_close, 1);
+		break;
+	case BPF_TCP_SYN_RECV:
+		__sync_fetch_and_add(&migrated_at_close_fastopen, 1);
+		break;
+	case BPF_TCP_NEW_SYN_RECV:
+		if (!reuse_md->len)
+			__sync_fetch_and_add(&migrated_at_send_synack, 1);
+		else
+			__sync_fetch_and_add(&migrated_at_recv_ack, 1);
+		break;
+	}
+
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
index ecbeea2df259..fc8e8a34a3db 100644
--- a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
+++ b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
@@ -5,7 +5,7 @@
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
 
-static volatile const struct {
+const struct {
 	unsigned a[4];
 	/*
 	 * if the struct's size is multiple of 16, compiler will put it into
@@ -15,11 +15,11 @@ static volatile const struct {
 	char _y;
 } rdonly_values = { .a = {2, 3, 4, 5} };
 
-static volatile struct {
+struct {
 	unsigned did_run;
 	unsigned iters;
 	unsigned sum;
-} res;
+} res = {};
 
 SEC("raw_tracepoint/sys_enter:skip_loop")
 int skip_loop(struct pt_regs *ctx)
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf.c b/tools/testing/selftests/bpf/progs/test_ringbuf.c
index 6b3f288b7c63..eaa7d9dba0be 100644
--- a/tools/testing/selftests/bpf/progs/test_ringbuf.c
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf.c
@@ -35,7 +35,7 @@ long prod_pos = 0;
 /* inner state */
 long seq = 0;
 
-SEC("tp/syscalls/sys_enter_getpgid")
+SEC("fentry/__x64_sys_getpgid")
 int test_ringbuf(void *ctx)
 {
 	int cur_pid = bpf_get_current_pid_tgid() >> 32;
@@ -48,7 +48,7 @@ int test_ringbuf(void *ctx)
 	sample = bpf_ringbuf_reserve(&ringbuf, sizeof(*sample), 0);
 	if (!sample) {
 		__sync_fetch_and_add(&dropped, 1);
-		return 1;
+		return 0;
 	}
 
 	sample->pid = pid;
diff --git a/tools/testing/selftests/bpf/progs/test_skeleton.c b/tools/testing/selftests/bpf/progs/test_skeleton.c
index 374ccef704e1..441fa1c552c8 100644
--- a/tools/testing/selftests/bpf/progs/test_skeleton.c
+++ b/tools/testing/selftests/bpf/progs/test_skeleton.c
@@ -38,11 +38,11 @@ extern int LINUX_KERNEL_VERSION __kconfig;
 bool bpf_syscall = 0;
 int kern_ver = 0;
 
+struct s out5 = {};
+
 SEC("raw_tp/sys_enter")
 int handler(const void *ctx)
 {
-	static volatile struct s out5;
-
 	out1 = in1;
 	out2 = in2;
 	out3 = in3;
diff --git a/tools/testing/selftests/bpf/progs/test_snprintf.c b/tools/testing/selftests/bpf/progs/test_snprintf.c
index e35129bea0a0..e2ad26150f9b 100644
--- a/tools/testing/selftests/bpf/progs/test_snprintf.c
+++ b/tools/testing/selftests/bpf/progs/test_snprintf.c
@@ -3,7 +3,6 @@
 
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
 
 __u32 pid = 0;
 
diff --git a/tools/testing/selftests/bpf/progs/test_snprintf_single.c b/tools/testing/selftests/bpf/progs/test_snprintf_single.c
index 402adaf344f9..3095837334d3 100644
--- a/tools/testing/selftests/bpf/progs/test_snprintf_single.c
+++ b/tools/testing/selftests/bpf/progs/test_snprintf_single.c
@@ -5,7 +5,7 @@
 #include <bpf/bpf_helpers.h>
 
 /* The format string is filled from the userspace such that loading fails */
-static const char fmt[10];
+const char fmt[10];
 
 SEC("raw_tp/sys_enter")
 int handler(const void *ctx)
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_listen.c b/tools/testing/selftests/bpf/progs/test_sockmap_listen.c
index a39eba9f5201..a1cc58b10c7c 100644
--- a/tools/testing/selftests/bpf/progs/test_sockmap_listen.c
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_listen.c
@@ -28,8 +28,8 @@ struct {
 	__type(value, unsigned int);
 } verdict_map SEC(".maps");
 
-static volatile bool test_sockmap; /* toggled by user-space */
-static volatile bool test_ingress; /* toggled by user-space */
+bool test_sockmap = false; /* toggled by user-space */
+bool test_ingress = false; /* toggled by user-space */
 
 SEC("sk_skb/stream_parser")
 int prog_stream_parser(struct __sk_buff *skb)
diff --git a/tools/testing/selftests/bpf/progs/test_static_linked1.c b/tools/testing/selftests/bpf/progs/test_static_linked1.c
index ea1a6c4c7172..4f0b612e1661 100644
--- a/tools/testing/selftests/bpf/progs/test_static_linked1.c
+++ b/tools/testing/selftests/bpf/progs/test_static_linked1.c
@@ -4,10 +4,10 @@
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
 
-/* 8-byte aligned .bss */
-static volatile long static_var1;
-static volatile int static_var11;
-int var1 = 0;
+/* 8-byte aligned .data */
+static volatile long static_var1 = 2;
+static volatile int static_var2 = 3;
+int var1 = -1;
 /* 4-byte aligned .rodata */
 const volatile int rovar1;
 
@@ -21,7 +21,7 @@ static __noinline int subprog(int x)
 SEC("raw_tp/sys_enter")
 int handler1(const void *ctx)
 {
-	var1 = subprog(rovar1) + static_var1 + static_var11;
+	var1 = subprog(rovar1) + static_var1 + static_var2;
 
 	return 0;
 }
diff --git a/tools/testing/selftests/bpf/progs/test_static_linked2.c b/tools/testing/selftests/bpf/progs/test_static_linked2.c
index 54d8d1ab577c..766ebd502a60 100644
--- a/tools/testing/selftests/bpf/progs/test_static_linked2.c
+++ b/tools/testing/selftests/bpf/progs/test_static_linked2.c
@@ -4,10 +4,10 @@
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
 
-/* 4-byte aligned .bss */
-static volatile int static_var2;
-static volatile int static_var22;
-int var2 = 0;
+/* 4-byte aligned .data */
+static volatile int static_var1 = 5;
+static volatile int static_var2 = 6;
+int var2 = -1;
 /* 8-byte aligned .rodata */
 const volatile long rovar2;
 
@@ -21,7 +21,7 @@ static __noinline int subprog(int x)
 SEC("raw_tp/sys_enter")
 int handler2(const void *ctx)
 {
-	var2 = subprog(rovar2) + static_var2 + static_var22;
+	var2 = subprog(rovar2) + static_var1 + static_var2;
 
 	return 0;
 }
diff --git a/tools/testing/selftests/bpf/progs/test_subprogs.c b/tools/testing/selftests/bpf/progs/test_subprogs.c
index d3c5673c0218..b7c37ca09544 100644
--- a/tools/testing/selftests/bpf/progs/test_subprogs.c
+++ b/tools/testing/selftests/bpf/progs/test_subprogs.c
@@ -4,8 +4,18 @@
 
 const char LICENSE[] SEC("license") = "GPL";
 
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} array SEC(".maps");
+
 __noinline int sub1(int x)
 {
+	int key = 0;
+
+	bpf_map_lookup_elem(&array, &key);
 	return x + 1;
 }
 
@@ -23,6 +33,9 @@ static __noinline int sub3(int z)
 
 static __noinline int sub4(int w)
 {
+	int key = 0;
+
+	bpf_map_lookup_elem(&array, &key);
 	return w + sub3(5) + sub1(6);
 }
 
diff --git a/tools/testing/selftests/bpf/progs/test_tc_bpf.c b/tools/testing/selftests/bpf/progs/test_tc_bpf.c
new file mode 100644
index 000000000000..18a3a7ed924a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_bpf.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* Dummy prog to test TC-BPF API */
+
+SEC("classifier")
+int cls(struct __sk_buff *skb)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/trace_printk.c b/tools/testing/selftests/bpf/progs/trace_printk.c
index 8ca7f399b670..119582aa105a 100644
--- a/tools/testing/selftests/bpf/progs/trace_printk.c
+++ b/tools/testing/selftests/bpf/progs/trace_printk.c
@@ -10,11 +10,11 @@ char _license[] SEC("license") = "GPL";
 int trace_printk_ret = 0;
 int trace_printk_ran = 0;
 
-SEC("tp/raw_syscalls/sys_enter")
+const char fmt[] = "Testing,testing %d\n";
+
+SEC("fentry/__x64_sys_nanosleep")
 int sys_enter(void *ctx)
 {
-	static const char fmt[] = "testing,testing %d\n";
-
 	trace_printk_ret = bpf_trace_printk(fmt, sizeof(fmt),
 					    ++trace_printk_ran);
 	return 0;
diff --git a/tools/testing/selftests/bpf/progs/xdp_redirect_multi_kern.c b/tools/testing/selftests/bpf/progs/xdp_redirect_multi_kern.c
new file mode 100644
index 000000000000..880debcbcd65
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_redirect_multi_kern.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0
+#define KBUILD_MODNAME "foo"
+#include <string.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+/* One map use devmap, another one use devmap_hash for testing */
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+	__uint(max_entries, 1024);
+} map_all SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP_HASH);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(struct bpf_devmap_val));
+	__uint(max_entries, 128);
+} map_egress SEC(".maps");
+
+/* map to store egress interfaces mac addresses */
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, __be64);
+	__uint(max_entries, 128);
+} mac_map SEC(".maps");
+
+SEC("xdp_redirect_map_multi")
+int xdp_redirect_map_multi_prog(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	int if_index = ctx->ingress_ifindex;
+	struct ethhdr *eth = data;
+	__u16 h_proto;
+	__u64 nh_off;
+
+	nh_off = sizeof(*eth);
+	if (data + nh_off > data_end)
+		return XDP_DROP;
+
+	h_proto = eth->h_proto;
+
+	/* Using IPv4 for (BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS) testing */
+	if (h_proto == bpf_htons(ETH_P_IP))
+		return bpf_redirect_map(&map_all, 0,
+					BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS);
+	/* Using IPv6 for none flag testing */
+	else if (h_proto == bpf_htons(ETH_P_IPV6))
+		return bpf_redirect_map(&map_all, if_index, 0);
+	/* All others for BPF_F_BROADCAST testing */
+	else
+		return bpf_redirect_map(&map_all, 0, BPF_F_BROADCAST);
+}
+
+/* The following 2 progs are for 2nd devmap prog testing */
+SEC("xdp_redirect_map_ingress")
+int xdp_redirect_map_all_prog(struct xdp_md *ctx)
+{
+	return bpf_redirect_map(&map_egress, 0,
+				BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS);
+}
+
+SEC("xdp_devmap/map_prog")
+int xdp_devmap_prog(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	__u32 key = ctx->egress_ifindex;
+	struct ethhdr *eth = data;
+	__u64 nh_off;
+	__be64 *mac;
+
+	nh_off = sizeof(*eth);
+	if (data + nh_off > data_end)
+		return XDP_DROP;
+
+	mac = bpf_map_lookup_elem(&mac_map, &key);
+	if (mac)
+		__builtin_memcpy(eth->h_source, mac, ETH_ALEN);
+
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/test_doc_build.sh b/tools/testing/selftests/bpf/test_doc_build.sh
index 7eb940a7b2eb..ed12111cd2f0 100755
--- a/tools/testing/selftests/bpf/test_doc_build.sh
+++ b/tools/testing/selftests/bpf/test_doc_build.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+set -e
 
 # Assume script is located under tools/testing/selftests/bpf/. We want to start
 # build attempts from the top of kernel repository.
diff --git a/tools/testing/selftests/bpf/test_lru_map.c b/tools/testing/selftests/bpf/test_lru_map.c
index 6a5349f9eb14..7e9049fa3edf 100644
--- a/tools/testing/selftests/bpf/test_lru_map.c
+++ b/tools/testing/selftests/bpf/test_lru_map.c
@@ -231,6 +231,14 @@ static void test_lru_sanity0(int map_type, int map_flags)
 	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -1 &&
 	       errno == ENOENT);
 
+	/* lookup elem key=1 and delete it, then check it doesn't exist */
+	key = 1;
+	assert(!bpf_map_lookup_and_delete_elem(lru_map_fd, &key, &value));
+	assert(value[0] == 1234);
+
+	/* remove the same element from the expected map */
+	assert(!bpf_map_delete_elem(expected_map_fd, &key));
+
 	assert(map_equal(lru_map_fd, expected_map_fd));
 
 	close(expected_map_fd);
diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c
index 51adc42b2b40..30cbf5d98f7d 100644
--- a/tools/testing/selftests/bpf/test_maps.c
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -53,23 +53,30 @@ static void test_hashmap(unsigned int task, void *data)
 
 	value = 0;
 	/* BPF_NOEXIST means add new element if it doesn't exist. */
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
 	       /* key=1 already exists. */
 	       errno == EEXIST);
 
 	/* -1 is an invalid flag. */
-	assert(bpf_map_update_elem(fd, &key, &value, -1) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, -1) < 0 &&
 	       errno == EINVAL);
 
 	/* Check that key=1 can be found. */
 	assert(bpf_map_lookup_elem(fd, &key, &value) == 0 && value == 1234);
 
 	key = 2;
+	value = 1234;
+	/* Insert key=2 element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
+
+	/* Check that key=2 matches the value and delete it */
+	assert(bpf_map_lookup_and_delete_elem(fd, &key, &value) == 0 && value == 1234);
+
 	/* Check that key=2 is not found. */
-	assert(bpf_map_lookup_elem(fd, &key, &value) == -1 && errno == ENOENT);
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
 
 	/* BPF_EXIST means update existing element. */
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_EXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_EXIST) < 0 &&
 	       /* key=2 is not there. */
 	       errno == ENOENT);
 
@@ -80,7 +87,7 @@ static void test_hashmap(unsigned int task, void *data)
 	 * inserted due to max_entries limit.
 	 */
 	key = 0;
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
 	       errno == E2BIG);
 
 	/* Update existing element, though the map is full. */
@@ -89,12 +96,12 @@ static void test_hashmap(unsigned int task, void *data)
 	key = 2;
 	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
 	key = 3;
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
 	       errno == E2BIG);
 
 	/* Check that key = 0 doesn't exist. */
 	key = 0;
-	assert(bpf_map_delete_elem(fd, &key) == -1 && errno == ENOENT);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
 
 	/* Iterate over two elements. */
 	assert(bpf_map_get_next_key(fd, NULL, &first_key) == 0 &&
@@ -104,7 +111,7 @@ static void test_hashmap(unsigned int task, void *data)
 	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == 0 &&
 	       (next_key == 1 || next_key == 2) &&
 	       (next_key != first_key));
-	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == -1 &&
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) < 0 &&
 	       errno == ENOENT);
 
 	/* Delete both elements. */
@@ -112,13 +119,13 @@ static void test_hashmap(unsigned int task, void *data)
 	assert(bpf_map_delete_elem(fd, &key) == 0);
 	key = 2;
 	assert(bpf_map_delete_elem(fd, &key) == 0);
-	assert(bpf_map_delete_elem(fd, &key) == -1 && errno == ENOENT);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
 
 	key = 0;
 	/* Check that map is empty. */
-	assert(bpf_map_get_next_key(fd, NULL, &next_key) == -1 &&
+	assert(bpf_map_get_next_key(fd, NULL, &next_key) < 0 &&
 	       errno == ENOENT);
-	assert(bpf_map_get_next_key(fd, &key, &next_key) == -1 &&
+	assert(bpf_map_get_next_key(fd, &key, &next_key) < 0 &&
 	       errno == ENOENT);
 
 	close(fd);
@@ -166,15 +173,25 @@ static void test_hashmap_percpu(unsigned int task, void *data)
 	/* Insert key=1 element. */
 	assert(!(expected_key_mask & key));
 	assert(bpf_map_update_elem(fd, &key, value, BPF_ANY) == 0);
+
+	/* Lookup and delete elem key=1 and check value. */
+	assert(bpf_map_lookup_and_delete_elem(fd, &key, value) == 0 &&
+	       bpf_percpu(value,0) == 100);
+
+	for (i = 0; i < nr_cpus; i++)
+		bpf_percpu(value,i) = i + 100;
+
+	/* Insert key=1 element which should not exist. */
+	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) == 0);
 	expected_key_mask |= key;
 
 	/* BPF_NOEXIST means add new element if it doesn't exist. */
-	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) < 0 &&
 	       /* key=1 already exists. */
 	       errno == EEXIST);
 
 	/* -1 is an invalid flag. */
-	assert(bpf_map_update_elem(fd, &key, value, -1) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, value, -1) < 0 &&
 	       errno == EINVAL);
 
 	/* Check that key=1 can be found. Value could be 0 if the lookup
@@ -186,10 +203,10 @@ static void test_hashmap_percpu(unsigned int task, void *data)
 
 	key = 2;
 	/* Check that key=2 is not found. */
-	assert(bpf_map_lookup_elem(fd, &key, value) == -1 && errno == ENOENT);
+	assert(bpf_map_lookup_elem(fd, &key, value) < 0 && errno == ENOENT);
 
 	/* BPF_EXIST means update existing element. */
-	assert(bpf_map_update_elem(fd, &key, value, BPF_EXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, value, BPF_EXIST) < 0 &&
 	       /* key=2 is not there. */
 	       errno == ENOENT);
 
@@ -202,11 +219,11 @@ static void test_hashmap_percpu(unsigned int task, void *data)
 	 * inserted due to max_entries limit.
 	 */
 	key = 0;
-	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) < 0 &&
 	       errno == E2BIG);
 
 	/* Check that key = 0 doesn't exist. */
-	assert(bpf_map_delete_elem(fd, &key) == -1 && errno == ENOENT);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
 
 	/* Iterate over two elements. */
 	assert(bpf_map_get_next_key(fd, NULL, &first_key) == 0 &&
@@ -237,13 +254,13 @@ static void test_hashmap_percpu(unsigned int task, void *data)
 	assert(bpf_map_delete_elem(fd, &key) == 0);
 	key = 2;
 	assert(bpf_map_delete_elem(fd, &key) == 0);
-	assert(bpf_map_delete_elem(fd, &key) == -1 && errno == ENOENT);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
 
 	key = 0;
 	/* Check that map is empty. */
-	assert(bpf_map_get_next_key(fd, NULL, &next_key) == -1 &&
+	assert(bpf_map_get_next_key(fd, NULL, &next_key) < 0 &&
 	       errno == ENOENT);
-	assert(bpf_map_get_next_key(fd, &key, &next_key) == -1 &&
+	assert(bpf_map_get_next_key(fd, &key, &next_key) < 0 &&
 	       errno == ENOENT);
 
 	close(fd);
@@ -360,7 +377,7 @@ static void test_arraymap(unsigned int task, void *data)
 	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
 
 	value = 0;
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
 	       errno == EEXIST);
 
 	/* Check that key=1 can be found. */
@@ -374,11 +391,11 @@ static void test_arraymap(unsigned int task, void *data)
 	 * due to max_entries limit.
 	 */
 	key = 2;
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_EXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_EXIST) < 0 &&
 	       errno == E2BIG);
 
 	/* Check that key = 2 doesn't exist. */
-	assert(bpf_map_lookup_elem(fd, &key, &value) == -1 && errno == ENOENT);
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
 
 	/* Iterate over two elements. */
 	assert(bpf_map_get_next_key(fd, NULL, &next_key) == 0 &&
@@ -387,12 +404,12 @@ static void test_arraymap(unsigned int task, void *data)
 	       next_key == 0);
 	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == 0 &&
 	       next_key == 1);
-	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == -1 &&
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) < 0 &&
 	       errno == ENOENT);
 
 	/* Delete shouldn't succeed. */
 	key = 1;
-	assert(bpf_map_delete_elem(fd, &key) == -1 && errno == EINVAL);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == EINVAL);
 
 	close(fd);
 }
@@ -418,7 +435,7 @@ static void test_arraymap_percpu(unsigned int task, void *data)
 	assert(bpf_map_update_elem(fd, &key, values, BPF_ANY) == 0);
 
 	bpf_percpu(values, 0) = 0;
-	assert(bpf_map_update_elem(fd, &key, values, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, values, BPF_NOEXIST) < 0 &&
 	       errno == EEXIST);
 
 	/* Check that key=1 can be found. */
@@ -433,11 +450,11 @@ static void test_arraymap_percpu(unsigned int task, void *data)
 
 	/* Check that key=2 cannot be inserted due to max_entries limit. */
 	key = 2;
-	assert(bpf_map_update_elem(fd, &key, values, BPF_EXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, values, BPF_EXIST) < 0 &&
 	       errno == E2BIG);
 
 	/* Check that key = 2 doesn't exist. */
-	assert(bpf_map_lookup_elem(fd, &key, values) == -1 && errno == ENOENT);
+	assert(bpf_map_lookup_elem(fd, &key, values) < 0 && errno == ENOENT);
 
 	/* Iterate over two elements. */
 	assert(bpf_map_get_next_key(fd, NULL, &next_key) == 0 &&
@@ -446,12 +463,12 @@ static void test_arraymap_percpu(unsigned int task, void *data)
 	       next_key == 0);
 	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == 0 &&
 	       next_key == 1);
-	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == -1 &&
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) < 0 &&
 	       errno == ENOENT);
 
 	/* Delete shouldn't succeed. */
 	key = 1;
-	assert(bpf_map_delete_elem(fd, &key) == -1 && errno == EINVAL);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == EINVAL);
 
 	close(fd);
 }
@@ -555,7 +572,7 @@ static void test_queuemap(unsigned int task, void *data)
 		assert(bpf_map_update_elem(fd, NULL, &vals[i], 0) == 0);
 
 	/* Check that element cannot be pushed due to max_entries limit */
-	assert(bpf_map_update_elem(fd, NULL, &val, 0) == -1 &&
+	assert(bpf_map_update_elem(fd, NULL, &val, 0) < 0 &&
 	       errno == E2BIG);
 
 	/* Peek element */
@@ -571,12 +588,12 @@ static void test_queuemap(unsigned int task, void *data)
 		       val == vals[i]);
 
 	/* Check that there are not elements left */
-	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) == -1 &&
+	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) < 0 &&
 	       errno == ENOENT);
 
 	/* Check that non supported functions set errno to EINVAL */
-	assert(bpf_map_delete_elem(fd, NULL) == -1 && errno == EINVAL);
-	assert(bpf_map_get_next_key(fd, NULL, NULL) == -1 && errno == EINVAL);
+	assert(bpf_map_delete_elem(fd, NULL) < 0 && errno == EINVAL);
+	assert(bpf_map_get_next_key(fd, NULL, NULL) < 0 && errno == EINVAL);
 
 	close(fd);
 }
@@ -613,7 +630,7 @@ static void test_stackmap(unsigned int task, void *data)
 		assert(bpf_map_update_elem(fd, NULL, &vals[i], 0) == 0);
 
 	/* Check that element cannot be pushed due to max_entries limit */
-	assert(bpf_map_update_elem(fd, NULL, &val, 0) == -1 &&
+	assert(bpf_map_update_elem(fd, NULL, &val, 0) < 0 &&
 	       errno == E2BIG);
 
 	/* Peek element */
@@ -629,12 +646,12 @@ static void test_stackmap(unsigned int task, void *data)
 		       val == vals[i]);
 
 	/* Check that there are not elements left */
-	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) == -1 &&
+	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) < 0 &&
 	       errno == ENOENT);
 
 	/* Check that non supported functions set errno to EINVAL */
-	assert(bpf_map_delete_elem(fd, NULL) == -1 && errno == EINVAL);
-	assert(bpf_map_get_next_key(fd, NULL, NULL) == -1 && errno == EINVAL);
+	assert(bpf_map_delete_elem(fd, NULL) < 0 && errno == EINVAL);
+	assert(bpf_map_get_next_key(fd, NULL, NULL) < 0 && errno == EINVAL);
 
 	close(fd);
 }
@@ -835,7 +852,7 @@ static void test_sockmap(unsigned int tasks, void *data)
 	}
 
 	bpf_map_rx = bpf_object__find_map_by_name(obj, "sock_map_rx");
-	if (IS_ERR(bpf_map_rx)) {
+	if (!bpf_map_rx) {
 		printf("Failed to load map rx from verdict prog\n");
 		goto out_sockmap;
 	}
@@ -847,7 +864,7 @@ static void test_sockmap(unsigned int tasks, void *data)
 	}
 
 	bpf_map_tx = bpf_object__find_map_by_name(obj, "sock_map_tx");
-	if (IS_ERR(bpf_map_tx)) {
+	if (!bpf_map_tx) {
 		printf("Failed to load map tx from verdict prog\n");
 		goto out_sockmap;
 	}
@@ -859,7 +876,7 @@ static void test_sockmap(unsigned int tasks, void *data)
 	}
 
 	bpf_map_msg = bpf_object__find_map_by_name(obj, "sock_map_msg");
-	if (IS_ERR(bpf_map_msg)) {
+	if (!bpf_map_msg) {
 		printf("Failed to load map msg from msg_verdict prog\n");
 		goto out_sockmap;
 	}
@@ -871,7 +888,7 @@ static void test_sockmap(unsigned int tasks, void *data)
 	}
 
 	bpf_map_break = bpf_object__find_map_by_name(obj, "sock_map_break");
-	if (IS_ERR(bpf_map_break)) {
+	if (!bpf_map_break) {
 		printf("Failed to load map tx from verdict prog\n");
 		goto out_sockmap;
 	}
@@ -1153,7 +1170,7 @@ static void test_map_in_map(void)
 	}
 
 	map = bpf_object__find_map_by_name(obj, "mim_array");
-	if (IS_ERR(map)) {
+	if (!map) {
 		printf("Failed to load array of maps from test prog\n");
 		goto out_map_in_map;
 	}
@@ -1164,7 +1181,7 @@ static void test_map_in_map(void)
 	}
 
 	map = bpf_object__find_map_by_name(obj, "mim_hash");
-	if (IS_ERR(map)) {
+	if (!map) {
 		printf("Failed to load hash of maps from test prog\n");
 		goto out_map_in_map;
 	}
@@ -1177,7 +1194,7 @@ static void test_map_in_map(void)
 	bpf_object__load(obj);
 
 	map = bpf_object__find_map_by_name(obj, "mim_array");
-	if (IS_ERR(map)) {
+	if (!map) {
 		printf("Failed to load array of maps from test prog\n");
 		goto out_map_in_map;
 	}
@@ -1194,7 +1211,7 @@ static void test_map_in_map(void)
 	}
 
 	map = bpf_object__find_map_by_name(obj, "mim_hash");
-	if (IS_ERR(map)) {
+	if (!map) {
 		printf("Failed to load hash of maps from test prog\n");
 		goto out_map_in_map;
 	}
@@ -1246,7 +1263,7 @@ static void test_map_large(void)
 	}
 
 	key.c = -1;
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
 	       errno == E2BIG);
 
 	/* Iterate through all elements. */
@@ -1254,12 +1271,12 @@ static void test_map_large(void)
 	key.c = -1;
 	for (i = 0; i < MAP_SIZE; i++)
 		assert(bpf_map_get_next_key(fd, &key, &key) == 0);
-	assert(bpf_map_get_next_key(fd, &key, &key) == -1 && errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &key) < 0 && errno == ENOENT);
 
 	key.c = 0;
 	assert(bpf_map_lookup_elem(fd, &key, &value) == 0 && value == 0);
 	key.a = 1;
-	assert(bpf_map_lookup_elem(fd, &key, &value) == -1 && errno == ENOENT);
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
 
 	close(fd);
 }
@@ -1391,7 +1408,7 @@ static void test_map_parallel(void)
 	run_parallel(TASKS, test_update_delete, data);
 
 	/* Check that key=0 is already there. */
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
 	       errno == EEXIST);
 
 	/* Check that all elements were inserted. */
@@ -1399,7 +1416,7 @@ static void test_map_parallel(void)
 	key = -1;
 	for (i = 0; i < MAP_SIZE; i++)
 		assert(bpf_map_get_next_key(fd, &key, &key) == 0);
-	assert(bpf_map_get_next_key(fd, &key, &key) == -1 && errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &key) < 0 && errno == ENOENT);
 
 	/* Another check for all elements */
 	for (i = 0; i < MAP_SIZE; i++) {
@@ -1415,8 +1432,8 @@ static void test_map_parallel(void)
 
 	/* Nothing should be left. */
 	key = -1;
-	assert(bpf_map_get_next_key(fd, NULL, &key) == -1 && errno == ENOENT);
-	assert(bpf_map_get_next_key(fd, &key, &key) == -1 && errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, NULL, &key) < 0 && errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &key) < 0 && errno == ENOENT);
 }
 
 static void test_map_rdonly(void)
@@ -1434,12 +1451,12 @@ static void test_map_rdonly(void)
 	key = 1;
 	value = 1234;
 	/* Try to insert key=1 element. */
-	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == -1 &&
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) < 0 &&
 	       errno == EPERM);
 
 	/* Check that key=1 is not found. */
-	assert(bpf_map_lookup_elem(fd, &key, &value) == -1 && errno == ENOENT);
-	assert(bpf_map_get_next_key(fd, &key, &value) == -1 && errno == ENOENT);
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &value) < 0 && errno == ENOENT);
 
 	close(fd);
 }
@@ -1462,8 +1479,8 @@ static void test_map_wronly_hash(void)
 	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
 
 	/* Check that reading elements and keys from the map is not allowed. */
-	assert(bpf_map_lookup_elem(fd, &key, &value) == -1 && errno == EPERM);
-	assert(bpf_map_get_next_key(fd, &key, &value) == -1 && errno == EPERM);
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == EPERM);
+	assert(bpf_map_get_next_key(fd, &key, &value) < 0 && errno == EPERM);
 
 	close(fd);
 }
@@ -1490,10 +1507,10 @@ static void test_map_wronly_stack_or_queue(enum bpf_map_type map_type)
 	assert(bpf_map_update_elem(fd, NULL, &value, BPF_ANY) == 0);
 
 	/* Peek element should fail */
-	assert(bpf_map_lookup_elem(fd, NULL, &value) == -1 && errno == EPERM);
+	assert(bpf_map_lookup_elem(fd, NULL, &value) < 0 && errno == EPERM);
 
 	/* Pop element should fail */
-	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &value) == -1 &&
+	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &value) < 0 &&
 	       errno == EPERM);
 
 	close(fd);
@@ -1547,7 +1564,7 @@ static void prepare_reuseport_grp(int type, int map_fd, size_t map_elem_size,
 			value = &fd32;
 		}
 		err = bpf_map_update_elem(map_fd, &index0, value, BPF_ANY);
-		CHECK(err != -1 || errno != EINVAL,
+		CHECK(err >= 0 || errno != EINVAL,
 		      "reuseport array update unbound sk",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
@@ -1576,7 +1593,7 @@ static void prepare_reuseport_grp(int type, int map_fd, size_t map_elem_size,
 			 */
 			err = bpf_map_update_elem(map_fd, &index0, value,
 						  BPF_ANY);
-			CHECK(err != -1 || errno != EINVAL,
+			CHECK(err >= 0 || errno != EINVAL,
 			      "reuseport array update non-listening sk",
 			      "sock_type:%d err:%d errno:%d\n",
 			      type, err, errno);
@@ -1606,31 +1623,31 @@ static void test_reuseport_array(void)
 
 	map_fd = bpf_create_map(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY,
 				sizeof(__u32), sizeof(__u64), array_size, 0);
-	CHECK(map_fd == -1, "reuseport array create",
+	CHECK(map_fd < 0, "reuseport array create",
 	      "map_fd:%d, errno:%d\n", map_fd, errno);
 
 	/* Test lookup/update/delete with invalid index */
 	err = bpf_map_delete_elem(map_fd, &bad_index);
-	CHECK(err != -1 || errno != E2BIG, "reuseport array del >=max_entries",
+	CHECK(err >= 0 || errno != E2BIG, "reuseport array del >=max_entries",
 	      "err:%d errno:%d\n", err, errno);
 
 	err = bpf_map_update_elem(map_fd, &bad_index, &fd64, BPF_ANY);
-	CHECK(err != -1 || errno != E2BIG,
+	CHECK(err >= 0 || errno != E2BIG,
 	      "reuseport array update >=max_entries",
 	      "err:%d errno:%d\n", err, errno);
 
 	err = bpf_map_lookup_elem(map_fd, &bad_index, &map_cookie);
-	CHECK(err != -1 || errno != ENOENT,
+	CHECK(err >= 0 || errno != ENOENT,
 	      "reuseport array update >=max_entries",
 	      "err:%d errno:%d\n", err, errno);
 
 	/* Test lookup/delete non existence elem */
 	err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
-	CHECK(err != -1 || errno != ENOENT,
+	CHECK(err >= 0 || errno != ENOENT,
 	      "reuseport array lookup not-exist elem",
 	      "err:%d errno:%d\n", err, errno);
 	err = bpf_map_delete_elem(map_fd, &index3);
-	CHECK(err != -1 || errno != ENOENT,
+	CHECK(err >= 0 || errno != ENOENT,
 	      "reuseport array del not-exist elem",
 	      "err:%d errno:%d\n", err, errno);
 
@@ -1644,7 +1661,7 @@ static void test_reuseport_array(void)
 		/* BPF_EXIST failure case */
 		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
 					  BPF_EXIST);
-		CHECK(err != -1 || errno != ENOENT,
+		CHECK(err >= 0 || errno != ENOENT,
 		      "reuseport array update empty elem BPF_EXIST",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
@@ -1653,7 +1670,7 @@ static void test_reuseport_array(void)
 		/* BPF_NOEXIST success case */
 		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
 					  BPF_NOEXIST);
-		CHECK(err == -1,
+		CHECK(err < 0,
 		      "reuseport array update empty elem BPF_NOEXIST",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
@@ -1662,7 +1679,7 @@ static void test_reuseport_array(void)
 		/* BPF_EXIST success case. */
 		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
 					  BPF_EXIST);
-		CHECK(err == -1,
+		CHECK(err < 0,
 		      "reuseport array update same elem BPF_EXIST",
 		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
 		fds_idx = REUSEPORT_FD_IDX(err, fds_idx);
@@ -1670,7 +1687,7 @@ static void test_reuseport_array(void)
 		/* BPF_NOEXIST failure case */
 		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
 					  BPF_NOEXIST);
-		CHECK(err != -1 || errno != EEXIST,
+		CHECK(err >= 0 || errno != EEXIST,
 		      "reuseport array update non-empty elem BPF_NOEXIST",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
@@ -1679,7 +1696,7 @@ static void test_reuseport_array(void)
 		/* BPF_ANY case (always succeed) */
 		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
 					  BPF_ANY);
-		CHECK(err == -1,
+		CHECK(err < 0,
 		      "reuseport array update same sk with BPF_ANY",
 		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
 
@@ -1688,32 +1705,32 @@ static void test_reuseport_array(void)
 
 		/* The same sk cannot be added to reuseport_array twice */
 		err = bpf_map_update_elem(map_fd, &index3, &fd64, BPF_ANY);
-		CHECK(err != -1 || errno != EBUSY,
+		CHECK(err >= 0 || errno != EBUSY,
 		      "reuseport array update same sk with same index",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
 
 		err = bpf_map_update_elem(map_fd, &index0, &fd64, BPF_ANY);
-		CHECK(err != -1 || errno != EBUSY,
+		CHECK(err >= 0 || errno != EBUSY,
 		      "reuseport array update same sk with different index",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
 
 		/* Test delete elem */
 		err = bpf_map_delete_elem(map_fd, &index3);
-		CHECK(err == -1, "reuseport array delete sk",
+		CHECK(err < 0, "reuseport array delete sk",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
 
 		/* Add it back with BPF_NOEXIST */
 		err = bpf_map_update_elem(map_fd, &index3, &fd64, BPF_NOEXIST);
-		CHECK(err == -1,
+		CHECK(err < 0,
 		      "reuseport array re-add with BPF_NOEXIST after del",
 		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
 
 		/* Test cookie */
 		err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
-		CHECK(err == -1 || sk_cookie != map_cookie,
+		CHECK(err < 0 || sk_cookie != map_cookie,
 		      "reuseport array lookup re-added sk",
 		      "sock_type:%d err:%d errno:%d sk_cookie:0x%llx map_cookie:0x%llxn",
 		      type, err, errno, sk_cookie, map_cookie);
@@ -1722,7 +1739,7 @@ static void test_reuseport_array(void)
 		for (f = 0; f < ARRAY_SIZE(grpa_fds64); f++)
 			close(grpa_fds64[f]);
 		err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
-		CHECK(err != -1 || errno != ENOENT,
+		CHECK(err >= 0 || errno != ENOENT,
 		      "reuseport array lookup after close()",
 		      "sock_type:%d err:%d errno:%d\n",
 		      type, err, errno);
@@ -1733,7 +1750,7 @@ static void test_reuseport_array(void)
 	CHECK(fd64 == -1, "socket(SOCK_RAW)", "err:%d errno:%d\n",
 	      err, errno);
 	err = bpf_map_update_elem(map_fd, &index3, &fd64, BPF_NOEXIST);
-	CHECK(err != -1 || errno != ENOTSUPP, "reuseport array update SOCK_RAW",
+	CHECK(err >= 0 || errno != ENOTSUPP, "reuseport array update SOCK_RAW",
 	      "err:%d errno:%d\n", err, errno);
 	close(fd64);
 
@@ -1743,16 +1760,16 @@ static void test_reuseport_array(void)
 	/* Test 32 bit fd */
 	map_fd = bpf_create_map(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY,
 				sizeof(__u32), sizeof(__u32), array_size, 0);
-	CHECK(map_fd == -1, "reuseport array create",
+	CHECK(map_fd < 0, "reuseport array create",
 	      "map_fd:%d, errno:%d\n", map_fd, errno);
 	prepare_reuseport_grp(SOCK_STREAM, map_fd, sizeof(__u32), &fd64,
 			      &sk_cookie, 1);
 	fd = fd64;
 	err = bpf_map_update_elem(map_fd, &index3, &fd, BPF_NOEXIST);
-	CHECK(err == -1, "reuseport array update 32 bit fd",
+	CHECK(err < 0, "reuseport array update 32 bit fd",
 	      "err:%d errno:%d\n", err, errno);
 	err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
-	CHECK(err != -1 || errno != ENOSPC,
+	CHECK(err >= 0 || errno != ENOSPC,
 	      "reuseport array lookup 32 bit fd",
 	      "err:%d errno:%d\n", err, errno);
 	close(fd);
@@ -1798,6 +1815,8 @@ int main(void)
 {
 	srand(time(NULL));
 
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
 	map_flags = 0;
 	run_all_tests();
 
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 6396932b97e2..6f103106a39b 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -737,6 +737,9 @@ int main(int argc, char **argv)
 	if (err)
 		return err;
 
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
 	libbpf_set_print(libbpf_print_fn);
 
 	srand(time(NULL));
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h
index dda52cb649dc..8ef7f334e715 100644
--- a/tools/testing/selftests/bpf/test_progs.h
+++ b/tools/testing/selftests/bpf/test_progs.h
@@ -249,16 +249,17 @@ extern int test__join_cgroup(const char *path);
 #define ASSERT_OK_PTR(ptr, name) ({					\
 	static int duration = 0;					\
 	const void *___res = (ptr);					\
-	bool ___ok = !IS_ERR_OR_NULL(___res);				\
-	CHECK(!___ok, (name),						\
-	      "unexpected error: %ld\n", PTR_ERR(___res));		\
+	int ___err = libbpf_get_error(___res);				\
+	bool ___ok = ___err == 0;					\
+	CHECK(!___ok, (name), "unexpected error: %d\n", ___err);	\
 	___ok;								\
 })
 
 #define ASSERT_ERR_PTR(ptr, name) ({					\
 	static int duration = 0;					\
 	const void *___res = (ptr);					\
-	bool ___ok = IS_ERR(___res);					\
+	int ___err = libbpf_get_error(___res);				\
+	bool ___ok = ___err != 0;					\
 	CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res);	\
 	___ok;								\
 })
diff --git a/tools/testing/selftests/bpf/test_tcpnotify_user.c b/tools/testing/selftests/bpf/test_tcpnotify_user.c
index 73da7fe8c152..4a39304cc5a6 100644
--- a/tools/testing/selftests/bpf/test_tcpnotify_user.c
+++ b/tools/testing/selftests/bpf/test_tcpnotify_user.c
@@ -82,6 +82,8 @@ int main(int argc, char **argv)
 	cpu_set_t cpuset;
 	__u32 key = 0;
 
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
 	CPU_ZERO(&cpuset);
 	CPU_SET(0, &cpuset);
 	pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
@@ -116,7 +118,7 @@ int main(int argc, char **argv)
 
 	pb_opts.sample_cb = dummyfn;
 	pb = perf_buffer__new(bpf_map__fd(perf_map), 8, &pb_opts);
-	if (IS_ERR(pb))
+	if (!pb)
 		goto err;
 
 	pthread_create(&tid, NULL, poller_thread, pb);
@@ -163,7 +165,6 @@ err:
 	bpf_prog_detach(cg_fd, BPF_CGROUP_SOCK_OPS);
 	close(cg_fd);
 	cleanup_cgroup_environment();
-	if (!IS_ERR_OR_NULL(pb))
-		perf_buffer__free(pb);
+	perf_buffer__free(pb);
 	return error;
 }
diff --git a/tools/testing/selftests/bpf/test_xdp_redirect_multi.sh b/tools/testing/selftests/bpf/test_xdp_redirect_multi.sh
new file mode 100755
index 000000000000..1538373157e3
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_xdp_redirect_multi.sh
@@ -0,0 +1,204 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test topology:
+#     - - - - - - - - - - - - - - - - - - - - - - - - -
+#    | veth1         veth2         veth3 |  ... init net
+#     - -| - - - - - - | - - - - - - | - -
+#    ---------     ---------     ---------
+#    | veth0 |     | veth0 |     | veth0 |  ...
+#    ---------     ---------     ---------
+#       ns1           ns2           ns3
+#
+# Test modules:
+# XDP modes: generic, native, native + egress_prog
+#
+# Test cases:
+#   ARP: Testing BPF_F_BROADCAST, the ingress interface also should receive
+#   the redirects.
+#      ns1 -> gw: ns1, ns2, ns3, should receive the arp request
+#   IPv4: Testing BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS, the ingress
+#   interface should not receive the redirects.
+#      ns1 -> gw: ns1 should not receive, ns2, ns3 should receive redirects.
+#   IPv6: Testing none flag, all the pkts should be redirected back
+#      ping test: ns1 -> ns2 (block), echo requests will be redirect back
+#   egress_prog:
+#      all src mac should be egress interface's mac
+
+# netns numbers
+NUM=3
+IFACES=""
+DRV_MODE="xdpgeneric xdpdrv xdpegress"
+PASS=0
+FAIL=0
+
+test_pass()
+{
+	echo "Pass: $@"
+	PASS=$((PASS + 1))
+}
+
+test_fail()
+{
+	echo "fail: $@"
+	FAIL=$((FAIL + 1))
+}
+
+clean_up()
+{
+	for i in $(seq $NUM); do
+		ip link del veth$i 2> /dev/null
+		ip netns del ns$i 2> /dev/null
+	done
+}
+
+# Kselftest framework requirement - SKIP code is 4.
+check_env()
+{
+	ip link set dev lo xdpgeneric off &>/dev/null
+	if [ $? -ne 0 ];then
+		echo "selftests: [SKIP] Could not run test without the ip xdpgeneric support"
+		exit 4
+	fi
+
+	which tcpdump &>/dev/null
+	if [ $? -ne 0 ];then
+		echo "selftests: [SKIP] Could not run test without tcpdump"
+		exit 4
+	fi
+}
+
+setup_ns()
+{
+	local mode=$1
+	IFACES=""
+
+	if [ "$mode" = "xdpegress" ]; then
+		mode="xdpdrv"
+	fi
+
+	for i in $(seq $NUM); do
+	        ip netns add ns$i
+	        ip link add veth$i type veth peer name veth0 netns ns$i
+		ip link set veth$i up
+		ip -n ns$i link set veth0 up
+
+		ip -n ns$i addr add 192.0.2.$i/24 dev veth0
+		ip -n ns$i addr add 2001:db8::$i/64 dev veth0
+		# Add a neigh entry for IPv4 ping test
+		ip -n ns$i neigh add 192.0.2.253 lladdr 00:00:00:00:00:01 dev veth0
+		ip -n ns$i link set veth0 $mode obj \
+			xdp_dummy.o sec xdp_dummy &> /dev/null || \
+			{ test_fail "Unable to load dummy xdp" && exit 1; }
+		IFACES="$IFACES veth$i"
+		veth_mac[$i]=$(ip link show veth$i | awk '/link\/ether/ {print $2}')
+	done
+}
+
+do_egress_tests()
+{
+	local mode=$1
+
+	# mac test
+	ip netns exec ns2 tcpdump -e -i veth0 -nn -l -e &> mac_ns1-2_${mode}.log &
+	ip netns exec ns3 tcpdump -e -i veth0 -nn -l -e &> mac_ns1-3_${mode}.log &
+	sleep 0.5
+	ip netns exec ns1 ping 192.0.2.254 -i 0.1 -c 4 &> /dev/null
+	sleep 0.5
+	pkill -9 tcpdump
+
+	# mac check
+	grep -q "${veth_mac[2]} > ff:ff:ff:ff:ff:ff" mac_ns1-2_${mode}.log && \
+	       test_pass "$mode mac ns1-2" || test_fail "$mode mac ns1-2"
+	grep -q "${veth_mac[3]} > ff:ff:ff:ff:ff:ff" mac_ns1-3_${mode}.log && \
+		test_pass "$mode mac ns1-3" || test_fail "$mode mac ns1-3"
+}
+
+do_ping_tests()
+{
+	local mode=$1
+
+	# ping6 test: echo request should be redirect back to itself, not others
+	ip netns exec ns1 ip neigh add 2001:db8::2 dev veth0 lladdr 00:00:00:00:00:02
+
+	ip netns exec ns1 tcpdump -i veth0 -nn -l -e &> ns1-1_${mode}.log &
+	ip netns exec ns2 tcpdump -i veth0 -nn -l -e &> ns1-2_${mode}.log &
+	ip netns exec ns3 tcpdump -i veth0 -nn -l -e &> ns1-3_${mode}.log &
+	sleep 0.5
+	# ARP test
+	ip netns exec ns1 ping 192.0.2.254 -i 0.1 -c 4 &> /dev/null
+	# IPv4 test
+	ip netns exec ns1 ping 192.0.2.253 -i 0.1 -c 4 &> /dev/null
+	# IPv6 test
+	ip netns exec ns1 ping6 2001:db8::2 -i 0.1 -c 2 &> /dev/null
+	sleep 0.5
+	pkill -9 tcpdump
+
+	# All netns should receive the redirect arp requests
+	[ $(grep -c "who-has 192.0.2.254" ns1-1_${mode}.log) -gt 4 ] && \
+		test_pass "$mode arp(F_BROADCAST) ns1-1" || \
+		test_fail "$mode arp(F_BROADCAST) ns1-1"
+	[ $(grep -c "who-has 192.0.2.254" ns1-2_${mode}.log) -le 4 ] && \
+		test_pass "$mode arp(F_BROADCAST) ns1-2" || \
+		test_fail "$mode arp(F_BROADCAST) ns1-2"
+	[ $(grep -c "who-has 192.0.2.254" ns1-3_${mode}.log) -le 4 ] && \
+		test_pass "$mode arp(F_BROADCAST) ns1-3" || \
+		test_fail "$mode arp(F_BROADCAST) ns1-3"
+
+	# ns1 should not receive the redirect echo request, others should
+	[ $(grep -c "ICMP echo request" ns1-1_${mode}.log) -eq 4 ] && \
+		test_pass "$mode IPv4 (F_BROADCAST|F_EXCLUDE_INGRESS) ns1-1" || \
+		test_fail "$mode IPv4 (F_BROADCAST|F_EXCLUDE_INGRESS) ns1-1"
+	[ $(grep -c "ICMP echo request" ns1-2_${mode}.log) -eq 4 ] && \
+		test_pass "$mode IPv4 (F_BROADCAST|F_EXCLUDE_INGRESS) ns1-2" || \
+		test_fail "$mode IPv4 (F_BROADCAST|F_EXCLUDE_INGRESS) ns1-2"
+	[ $(grep -c "ICMP echo request" ns1-3_${mode}.log) -eq 4 ] && \
+		test_pass "$mode IPv4 (F_BROADCAST|F_EXCLUDE_INGRESS) ns1-3" || \
+		test_fail "$mode IPv4 (F_BROADCAST|F_EXCLUDE_INGRESS) ns1-3"
+
+	# ns1 should receive the echo request, ns2 should not
+	[ $(grep -c "ICMP6, echo request" ns1-1_${mode}.log) -eq 4 ] && \
+		test_pass "$mode IPv6 (no flags) ns1-1" || \
+		test_fail "$mode IPv6 (no flags) ns1-1"
+	[ $(grep -c "ICMP6, echo request" ns1-2_${mode}.log) -eq 0 ] && \
+		test_pass "$mode IPv6 (no flags) ns1-2" || \
+		test_fail "$mode IPv6 (no flags) ns1-2"
+}
+
+do_tests()
+{
+	local mode=$1
+	local drv_p
+
+	case ${mode} in
+		xdpdrv)  drv_p="-N";;
+		xdpegress) drv_p="-X";;
+		xdpgeneric) drv_p="-S";;
+	esac
+
+	./xdp_redirect_multi $drv_p $IFACES &> xdp_redirect_${mode}.log &
+	xdp_pid=$!
+	sleep 1
+
+	if [ "$mode" = "xdpegress" ]; then
+		do_egress_tests $mode
+	else
+		do_ping_tests $mode
+	fi
+
+	kill $xdp_pid
+}
+
+trap clean_up 0 2 3 6 9
+
+check_env
+rm -f xdp_redirect_*.log ns*.log mac_ns*.log
+
+for mode in ${DRV_MODE}; do
+	setup_ns $mode
+	do_tests $mode
+	clean_up
+done
+
+echo "Summary: PASS $PASS, FAIL $FAIL"
+[ $FAIL -eq 0 ] && exit 0 || exit 1
diff --git a/tools/testing/selftests/bpf/xdp_redirect_multi.c b/tools/testing/selftests/bpf/xdp_redirect_multi.c
new file mode 100644
index 000000000000..3696a8f32c23
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdp_redirect_multi.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <linux/if_link.h>
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <net/if.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <sys/resource.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include "bpf_util.h"
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#define MAX_IFACE_NUM 32
+#define MAX_INDEX_NUM 1024
+
+static __u32 xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST;
+static int ifaces[MAX_IFACE_NUM] = {};
+
+static void int_exit(int sig)
+{
+	__u32 prog_id = 0;
+	int i;
+
+	for (i = 0; ifaces[i] > 0; i++) {
+		if (bpf_get_link_xdp_id(ifaces[i], &prog_id, xdp_flags)) {
+			printf("bpf_get_link_xdp_id failed\n");
+			exit(1);
+		}
+		if (prog_id)
+			bpf_set_link_xdp_fd(ifaces[i], -1, xdp_flags);
+	}
+
+	exit(0);
+}
+
+static int get_mac_addr(unsigned int ifindex, void *mac_addr)
+{
+	char ifname[IF_NAMESIZE];
+	struct ifreq ifr;
+	int fd, ret = -1;
+
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0)
+		return ret;
+
+	if (!if_indextoname(ifindex, ifname))
+		goto err_out;
+
+	strcpy(ifr.ifr_name, ifname);
+
+	if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0)
+		goto err_out;
+
+	memcpy(mac_addr, ifr.ifr_hwaddr.sa_data, 6 * sizeof(char));
+	ret = 0;
+
+err_out:
+	close(fd);
+	return ret;
+}
+
+static void usage(const char *prog)
+{
+	fprintf(stderr,
+		"usage: %s [OPTS] <IFNAME|IFINDEX> <IFNAME|IFINDEX> ...\n"
+		"OPTS:\n"
+		"    -S    use skb-mode\n"
+		"    -N    enforce native mode\n"
+		"    -F    force loading prog\n"
+		"    -X    load xdp program on egress\n",
+		prog);
+}
+
+int main(int argc, char **argv)
+{
+	int prog_fd, group_all, mac_map;
+	struct bpf_program *ingress_prog, *egress_prog;
+	struct bpf_prog_load_attr prog_load_attr = {
+		.prog_type = BPF_PROG_TYPE_UNSPEC,
+	};
+	int i, ret, opt, egress_prog_fd = 0;
+	struct bpf_devmap_val devmap_val;
+	bool attach_egress_prog = false;
+	unsigned char mac_addr[6];
+	char ifname[IF_NAMESIZE];
+	struct bpf_object *obj;
+	unsigned int ifindex;
+	char filename[256];
+
+	while ((opt = getopt(argc, argv, "SNFX")) != -1) {
+		switch (opt) {
+		case 'S':
+			xdp_flags |= XDP_FLAGS_SKB_MODE;
+			break;
+		case 'N':
+			/* default, set below */
+			break;
+		case 'F':
+			xdp_flags &= ~XDP_FLAGS_UPDATE_IF_NOEXIST;
+			break;
+		case 'X':
+			attach_egress_prog = true;
+			break;
+		default:
+			usage(basename(argv[0]));
+			return 1;
+		}
+	}
+
+	if (!(xdp_flags & XDP_FLAGS_SKB_MODE)) {
+		xdp_flags |= XDP_FLAGS_DRV_MODE;
+	} else if (attach_egress_prog) {
+		printf("Load xdp program on egress with SKB mode not supported yet\n");
+		goto err_out;
+	}
+
+	if (optind == argc) {
+		printf("usage: %s <IFNAME|IFINDEX> <IFNAME|IFINDEX> ...\n", argv[0]);
+		goto err_out;
+	}
+
+	printf("Get interfaces");
+	for (i = 0; i < MAX_IFACE_NUM && argv[optind + i]; i++) {
+		ifaces[i] = if_nametoindex(argv[optind + i]);
+		if (!ifaces[i])
+			ifaces[i] = strtoul(argv[optind + i], NULL, 0);
+		if (!if_indextoname(ifaces[i], ifname)) {
+			perror("Invalid interface name or i");
+			goto err_out;
+		}
+		if (ifaces[i] > MAX_INDEX_NUM) {
+			printf("Interface index to large\n");
+			goto err_out;
+		}
+		printf(" %d", ifaces[i]);
+	}
+	printf("\n");
+
+	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
+	prog_load_attr.file = filename;
+
+	if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd))
+		goto err_out;
+
+	if (attach_egress_prog)
+		group_all = bpf_object__find_map_fd_by_name(obj, "map_egress");
+	else
+		group_all = bpf_object__find_map_fd_by_name(obj, "map_all");
+	mac_map = bpf_object__find_map_fd_by_name(obj, "mac_map");
+
+	if (group_all < 0 || mac_map < 0) {
+		printf("bpf_object__find_map_fd_by_name failed\n");
+		goto err_out;
+	}
+
+	if (attach_egress_prog) {
+		/* Find ingress/egress prog for 2nd xdp prog */
+		ingress_prog = bpf_object__find_program_by_name(obj, "xdp_redirect_map_all_prog");
+		egress_prog = bpf_object__find_program_by_name(obj, "xdp_devmap_prog");
+		if (!ingress_prog || !egress_prog) {
+			printf("finding ingress/egress_prog in obj file failed\n");
+			goto err_out;
+		}
+		prog_fd = bpf_program__fd(ingress_prog);
+		egress_prog_fd = bpf_program__fd(egress_prog);
+		if (prog_fd < 0 || egress_prog_fd < 0) {
+			printf("find egress_prog fd failed\n");
+			goto err_out;
+		}
+	}
+
+	signal(SIGINT, int_exit);
+	signal(SIGTERM, int_exit);
+
+	/* Init forward multicast groups and exclude group */
+	for (i = 0; ifaces[i] > 0; i++) {
+		ifindex = ifaces[i];
+
+		if (attach_egress_prog) {
+			ret = get_mac_addr(ifindex, mac_addr);
+			if (ret < 0) {
+				printf("get interface %d mac failed\n", ifindex);
+				goto err_out;
+			}
+			ret = bpf_map_update_elem(mac_map, &ifindex, mac_addr, 0);
+			if (ret) {
+				perror("bpf_update_elem mac_map failed\n");
+				goto err_out;
+			}
+		}
+
+		/* Add all the interfaces to group all */
+		devmap_val.ifindex = ifindex;
+		devmap_val.bpf_prog.fd = egress_prog_fd;
+		ret = bpf_map_update_elem(group_all, &ifindex, &devmap_val, 0);
+		if (ret) {
+			perror("bpf_map_update_elem");
+			goto err_out;
+		}
+
+		/* bind prog_fd to each interface */
+		ret = bpf_set_link_xdp_fd(ifindex, prog_fd, xdp_flags);
+		if (ret) {
+			printf("Set xdp fd failed on %d\n", ifindex);
+			goto err_out;
+		}
+	}
+
+	/* sleep some time for testing */
+	sleep(999);
+
+	return 0;
+
+err_out:
+	return 1;
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh
index 4029833f7e27..160891dcb4bc 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh
@@ -109,6 +109,9 @@ router_destroy()
 	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
 
 	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
 }
 
 setup_prepare()
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh
index 42d44e27802c..190c1b6b5365 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh
@@ -111,6 +111,9 @@ router_destroy()
 	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
 
 	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
 }
 
 setup_prepare()
diff --git a/tools/testing/selftests/drivers/net/mlxsw/port_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/port_scale.sh
index 65f43a7ce9c9..1e9a4aff76a2 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/port_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/port_scale.sh
@@ -7,6 +7,8 @@
 
 PORT_NUM_NETIFS=0
 
+declare -a unsplit
+
 port_setup_prepare()
 {
 	:
@@ -20,12 +22,12 @@ port_cleanup()
 		devlink port unsplit $port
 		check_err $? "Did not unsplit $netdev"
 	done
+	unsplit=()
 }
 
 split_all_ports()
 {
 	local should_fail=$1; shift
-	local -a unsplit
 
 	# Loop over the splittable netdevs and create tuples of netdev along
 	# with its width. For example:
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
index 5cbff8038f84..28a570006d4d 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
@@ -93,7 +93,9 @@ switch_destroy()
 	lldptool -T -i $swp1 -V APP -d $(dscp_map 10) >/dev/null
 	lldpad_app_wait_del
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh
index 27de3d9ed08e..f4493ef9cca1 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh
@@ -29,37 +29,38 @@ cleanup()
 
 get_prio_pg()
 {
-	__mlnx_qos -i $swp | sed -n '/^PFC/,/^[^[:space:]]/p' |
-		grep buffer | sed 's/ \+/ /g' | cut -d' ' -f 2-
+	# Produces a string of numbers "<B0> <B1> ... <B7> ", where BX is number
+	# of buffer that priority X is mapped to.
+	dcb -j buffer show dev $swp |
+		jq -r '[.prio_buffer | .[] | tostring + " "] | add'
 }
 
 get_prio_pfc()
 {
-	__mlnx_qos -i $swp | sed -n '/^PFC/,/^[^[:space:]]/p' |
-		grep enabled | sed 's/ \+/ /g' | cut -d' ' -f 2-
+	# Produces a string of numbers "<P0> <P1> ... <P7> ", where PX denotes
+	# whether priority X has PFC enabled (the value is 1) or disabled (0).
+	dcb -j pfc show dev $swp |
+		jq -r '[.prio_pfc | .[] | if . then "1 " else "0 " end] | add'
 }
 
 get_prio_tc()
 {
-	__mlnx_qos -i $swp | sed -n '/^tc/,$p' |
-		awk '/^tc/ { TC = $2 }
-		     /priority:/ { PRIO[$2]=TC }
-		     END {
-			for (i in PRIO)
-			    printf("%d ", PRIO[i])
-		     }'
+	# Produces a string of numbers "<T0> <T1> ... <T7> ", where TC is number
+	# of TC that priority X is mapped to.
+	dcb -j ets show dev $swp |
+		jq -r '[.prio_tc | .[] | tostring + " "] | add'
 }
 
 get_buf_size()
 {
 	local idx=$1; shift
 
-	__mlnx_qos -i $swp | grep Receive | sed 's/.*: //' | cut -d, -f $((idx + 1))
+	dcb -j buffer show dev $swp | jq ".buffer_size[$idx]"
 }
 
 get_tot_size()
 {
-	__mlnx_qos -i $swp | grep Receive | sed 's/.*total_size=//'
+	dcb -j buffer show dev $swp | jq '.total_size'
 }
 
 check_prio_pg()
@@ -121,18 +122,18 @@ test_dcb_ets()
 {
 	RET=0
 
-	__mlnx_qos -i $swp --prio_tc=0,2,4,6,1,3,5,7 > /dev/null
+	dcb ets set dev $swp prio-tc 0:0 1:2 2:4 3:6 4:1 5:3 6:5 7:7
 
 	check_prio_pg "0 2 4 6 1 3 5 7 "
 	check_prio_tc "0 2 4 6 1 3 5 7 "
 	check_prio_pfc "0 0 0 0 0 0 0 0 "
 
-	__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,0,0,0 > /dev/null
+	dcb ets set dev $swp prio-tc all:0
 
 	check_prio_pg "0 0 0 0 0 0 0 0 "
 	check_prio_tc "0 0 0 0 0 0 0 0 "
 
-	__mlnx_qos -i $swp --prio2buffer=1,3,5,7,0,2,4,6 &> /dev/null
+	dcb buffer set dev $swp prio-buffer 0:1 1:3 2:5 3:7 4:0 5:2 6:4 7:6 2>/dev/null
 	check_fail $? "prio2buffer accepted in DCB mode"
 
 	log_test "Configuring headroom through ETS"
@@ -174,7 +175,7 @@ test_pfc()
 {
 	RET=0
 
-	__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,1,2,3 > /dev/null
+	dcb ets set dev $swp prio-tc all:0 5:1 6:2 7:3
 
 	local buf0size=$(get_buf_size 0)
 	local buf1size=$(get_buf_size 1)
@@ -193,7 +194,7 @@ test_pfc()
 
 	RET=0
 
-	__mlnx_qos -i $swp --pfc=0,0,0,0,0,1,1,1 --cable_len=0 > /dev/null
+	dcb pfc set dev $swp prio-pfc all:off 5:on 6:on 7:on delay 0
 
 	check_prio_pg "0 0 0 0 0 1 2 3 "
 	check_prio_pfc "0 0 0 0 0 1 1 1 "
@@ -210,7 +211,7 @@ test_pfc()
 
 	RET=0
 
-	__mlnx_qos -i $swp --pfc=0,0,0,0,0,1,1,1 --cable_len=1000 > /dev/null
+	dcb pfc set dev $swp delay 1000
 
 	check_buf_size 0 "== $buf0size"
 	check_buf_size 1 "> $buf1size"
@@ -221,8 +222,8 @@ test_pfc()
 
 	RET=0
 
-	__mlnx_qos -i $swp --pfc=0,0,0,0,0,0,0,0 --cable_len=0 > /dev/null
-	__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,0,0,0 > /dev/null
+	dcb pfc set dev $swp prio-pfc all:off delay 0
+	dcb ets set dev $swp prio-tc all:0
 
 	check_prio_pg "0 0 0 0 0 0 0 0 "
 	check_prio_tc "0 0 0 0 0 0 0 0 "
@@ -242,13 +243,13 @@ test_tc_priomap()
 {
 	RET=0
 
-	__mlnx_qos -i $swp --prio_tc=0,1,2,3,4,5,6,7 > /dev/null
+	dcb ets set dev $swp prio-tc 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
 	check_prio_pg "0 1 2 3 4 5 6 7 "
 
 	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
 	check_prio_pg "0 0 0 0 0 0 0 0 "
 
-	__mlnx_qos -i $swp --prio2buffer=1,3,5,7,0,2,4,6 > /dev/null
+	dcb buffer set dev $swp prio-buffer 0:1 1:3 2:5 3:7 4:0 5:2 6:4 7:6
 	check_prio_pg "1 3 5 7 0 2 4 6 "
 
 	tc qdisc delete dev $swp root
@@ -256,9 +257,9 @@ test_tc_priomap()
 
 	# Clean up.
 	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
-	__mlnx_qos -i $swp --prio2buffer=0,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp prio-buffer all:0
 	tc qdisc delete dev $swp root
-	__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,0,0,0 > /dev/null
+	dcb ets set dev $swp prio-tc all:0
 
 	log_test "TC: priomap"
 }
@@ -270,12 +271,12 @@ test_tc_sizes()
 
 	RET=0
 
-	__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 &> /dev/null
+	dcb buffer set dev $swp buffer-size all:0 0:$size 2>/dev/null
 	check_fail $? "buffer_size should fail before qdisc is added"
 
 	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
 
-	__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp buffer-size all:0 0:$size
 	check_err $? "buffer_size should pass after qdisc is added"
 	check_buf_size 0 "== $size" "set size: "
 
@@ -283,26 +284,26 @@ test_tc_sizes()
 	check_buf_size 0 "== $size" "set MTU: "
 	mtu_restore $swp
 
-	__mlnx_qos -i $swp --buffer_size=0,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp buffer-size all:0
 
 	# After replacing the qdisc for the same kind, buffer_size still has to
 	# work.
 	tc qdisc replace dev $swp root handle 1: bfifo limit 1M
 
-	__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp buffer-size all:0 0:$size
 	check_buf_size 0 "== $size" "post replace, set size: "
 
-	__mlnx_qos -i $swp --buffer_size=0,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp buffer-size all:0
 
 	# Likewise after replacing for a different kind.
 	tc qdisc replace dev $swp root handle 2: prio bands 8
 
-	__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp buffer-size all:0 0:$size
 	check_buf_size 0 "== $size" "post replace different kind, set size: "
 
 	tc qdisc delete dev $swp root
 
-	__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 &> /dev/null
+	dcb buffer set dev $swp buffer-size all:0 0:$size 2>/dev/null
 	check_fail $? "buffer_size should fail after qdisc is deleted"
 
 	log_test "TC: buffer size"
@@ -363,10 +364,10 @@ test_tc_int_buf()
 	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
 	test_int_buf "TC: "
 
-	__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp buffer-size all:0 0:$size
 	test_int_buf "TC+buffsize: "
 
-	__mlnx_qos -i $swp --buffer_size=0,0,0,0,0,0,0,0 > /dev/null
+	dcb buffer set dev $swp buffer-size all:0
 	tc qdisc delete dev $swp root
 }
 
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh
index 0bf76f13c030..faa51012cdac 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh
@@ -82,17 +82,3 @@ bail_on_lldpad()
 		fi
 	fi
 }
-
-__mlnx_qos()
-{
-	local err
-
-	mlnx_qos "$@" 2>/dev/null
-	err=$?
-
-	if ((err)); then
-		echo "Error ($err) in mlnx_qos $@" >/dev/stderr
-	fi
-
-	return $err
-}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh
index 5c7700212f75..5d5622fc2758 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh
@@ -171,7 +171,7 @@ switch_create()
 	# assignment.
 	tc qdisc replace dev $swp1 root handle 1: \
 	   ets bands 8 strict 8 priomap 7 6
-	__mlnx_qos -i $swp1 --prio2buffer=0,1,0,0,0,0,0,0 >/dev/null
+	dcb buffer set dev $swp1 prio-buffer all:0 1:1
 
 	# $swp2
 	# -----
@@ -209,8 +209,8 @@ switch_create()
 	# the lossless prio into a buffer of its own. Don't bother with buffer
 	# sizes though, there is not going to be any pressure in the "backward"
 	# direction.
-	__mlnx_qos -i $swp3 --prio2buffer=0,1,0,0,0,0,0,0 >/dev/null
-	__mlnx_qos -i $swp3 --pfc=0,1,0,0,0,0,0,0 >/dev/null
+	dcb buffer set dev $swp3 prio-buffer all:0 1:1
+	dcb pfc set dev $swp3 prio-pfc all:off 1:on
 
 	# $swp4
 	# -----
@@ -226,11 +226,11 @@ switch_create()
 	# Configure qdisc so that we can hand-tune headroom.
 	tc qdisc replace dev $swp4 root handle 1: \
 	   ets bands 8 strict 8 priomap 7 6
-	__mlnx_qos -i $swp4 --prio2buffer=0,1,0,0,0,0,0,0 >/dev/null
-	__mlnx_qos -i $swp4 --pfc=0,1,0,0,0,0,0,0 >/dev/null
+	dcb buffer set dev $swp4 prio-buffer all:0 1:1
+	dcb pfc set dev $swp4 prio-pfc all:off 1:on
 	# PG0 will get autoconfigured to Xoff, give PG1 arbitrarily 100K, which
 	# is (-2*MTU) about 80K of delay provision.
-	__mlnx_qos -i $swp4 --buffer_size=0,$_100KB,0,0,0,0,0,0 >/dev/null
+	dcb buffer set dev $swp4 buffer-size all:0 1:$_100KB
 
 	# bridges
 	# -------
@@ -273,9 +273,9 @@ switch_destroy()
 	# $swp4
 	# -----
 
-	__mlnx_qos -i $swp4 --buffer_size=0,0,0,0,0,0,0,0 >/dev/null
-	__mlnx_qos -i $swp4 --pfc=0,0,0,0,0,0,0,0 >/dev/null
-	__mlnx_qos -i $swp4 --prio2buffer=0,0,0,0,0,0,0,0 >/dev/null
+	dcb buffer set dev $swp4 buffer-size all:0
+	dcb pfc set dev $swp4 prio-pfc all:off
+	dcb buffer set dev $swp4 prio-buffer all:0
 	tc qdisc del dev $swp4 root
 
 	devlink_tc_bind_pool_th_restore $swp4 1 ingress
@@ -288,8 +288,8 @@ switch_destroy()
 	# $swp3
 	# -----
 
-	__mlnx_qos -i $swp3 --pfc=0,0,0,0,0,0,0,0 >/dev/null
-	__mlnx_qos -i $swp3 --prio2buffer=0,0,0,0,0,0,0,0 >/dev/null
+	dcb pfc set dev $swp3 prio-pfc all:off
+	dcb buffer set dev $swp3 prio-buffer all:0
 	tc qdisc del dev $swp3 root
 
 	devlink_tc_bind_pool_th_restore $swp3 1 egress
@@ -315,7 +315,7 @@ switch_destroy()
 	# $swp1
 	# -----
 
-	__mlnx_qos -i $swp1 --prio2buffer=0,0,0,0,0,0,0,0 >/dev/null
+	dcb buffer set dev $swp1 prio-buffer all:0
 	tc qdisc del dev $swp1 root
 
 	devlink_tc_bind_pool_th_restore $swp1 1 ingress
diff --git a/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
index e93878d42596..683759d29199 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
@@ -68,7 +68,7 @@ wait_for_routes()
 	local t0=$1; shift
 	local route_count=$1; shift
 
-	local t1=$(ip route | grep -o 'offload' | wc -l)
+	local t1=$(ip route | grep 'offload' | grep -v 'offload_failed' | wc -l)
 	local delta=$((t1 - t0))
 	echo $delta
 	[[ $delta -ge $route_count ]]
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh
index 093bed088ad0..373d5f2a846e 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh
@@ -234,15 +234,15 @@ __tc_sample_rate_test()
 
 	psample_capture_start
 
-	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+	ip vrf exec v$h1 $MZ $h1 -c 320000 -d 100usec -p 64 -A 192.0.2.1 \
 		-B $dip -t udp dp=52768,sp=42768 -q
 
 	psample_capture_stop
 
 	pkts=$(grep -e "group 1 " $CAPTURE_FILE | wc -l)
-	pct=$((100 * (pkts - 100) / 100))
+	pct=$((100 * (pkts - 10000) / 10000))
 	(( -25 <= pct && pct <= 25))
-	check_err $? "Expected 100 packets, got $pkts packets, which is $pct% off. Required accuracy is +-25%"
+	check_err $? "Expected 10000 packets, got $pkts packets, which is $pct% off. Required accuracy is +-25%"
 
 	log_test "tc sample rate ($desc)"
 
@@ -587,15 +587,15 @@ __tc_sample_acl_rate_test()
 
 	psample_capture_start
 
-	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+	ip vrf exec v$h1 $MZ $h1 -c 320000 -d 100usec -p 64 -A 192.0.2.1 \
 		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
 
 	psample_capture_stop
 
 	pkts=$(grep -e "group 1 " $CAPTURE_FILE | wc -l)
-	pct=$((100 * (pkts - 100) / 100))
+	pct=$((100 * (pkts - 10000) / 10000))
 	(( -25 <= pct && pct <= 25))
-	check_err $? "Expected 100 packets, got $pkts packets, which is $pct% off. Required accuracy is +-25%"
+	check_err $? "Expected 10000 packets, got $pkts packets, which is $pct% off. Required accuracy is +-25%"
 
 	# Setup a filter that should not match any packet and make sure packets
 	# are not sampled.
diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
index 40909c254365..9de1d123f4f5 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
@@ -5,12 +5,13 @@ lib_dir=$(dirname $0)/../../../net/forwarding
 
 ALL_TESTS="fw_flash_test params_test regions_test reload_test \
 	   netns_reload_test resource_test dev_info_test \
-	   empty_reporter_test dummy_reporter_test"
+	   empty_reporter_test dummy_reporter_test rate_test"
 NUM_NETIFS=0
 source $lib_dir/lib.sh
 
 BUS_ADDR=10
 PORT_COUNT=4
+VF_COUNT=4
 DEV_NAME=netdevsim$BUS_ADDR
 SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV_NAME/net/
 DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV_NAME/
@@ -507,6 +508,170 @@ dummy_reporter_test()
 	log_test "dummy reporter test"
 }
 
+rate_leafs_get()
+{
+	local handle=$1
+
+	cmd_jq "devlink port function rate show -j" \
+	       '.[] | to_entries | .[] | select(.value.type == "leaf") | .key | select(contains("'$handle'"))'
+}
+
+rate_nodes_get()
+{
+	local handle=$1
+
+	cmd_jq "devlink port function rate show -j" \
+		'.[] | to_entries | .[] | select(.value.type == "node") | .key | select(contains("'$handle'"))'
+}
+
+rate_attr_set()
+{
+	local handle=$1
+	local name=$2
+	local value=$3
+	local units=$4
+
+	devlink port function rate set $handle $name $value$units
+}
+
+rate_attr_get()
+{
+	local handle=$1
+	local name=$2
+
+	cmd_jq "devlink port function rate show $handle -j" '.[][].'$name
+}
+
+rate_attr_tx_rate_check()
+{
+	local handle=$1
+	local name=$2
+	local rate=$3
+	local debug_file=$4
+
+	rate_attr_set $handle $name $rate mbit
+	check_err $? "Failed to set $name value"
+
+	local debug_value=$(cat $debug_file)
+	check_err $? "Failed to read $name value from debugfs"
+	[ "$debug_value" == "$rate" ]
+	check_err $? "Unexpected $name debug value $debug_value != $rate"
+
+	local api_value=$(( $(rate_attr_get $handle $name) * 8 / 1000000 ))
+	check_err $? "Failed to get $name attr value"
+	[ "$api_value" == "$rate" ]
+	check_err $? "Unexpected $name attr value $api_value != $rate"
+}
+
+rate_attr_parent_check()
+{
+	local handle=$1
+	local parent=$2
+	local debug_file=$3
+
+	rate_attr_set $handle parent $parent
+	check_err $? "Failed to set parent"
+
+	debug_value=$(cat $debug_file)
+	check_err $? "Failed to get parent debugfs value"
+	[ "$debug_value" == "$parent" ]
+	check_err $? "Unexpected parent debug value $debug_value != $parent"
+
+	api_value=$(rate_attr_get $r_obj parent)
+	check_err $? "Failed to get parent attr value"
+	[ "$api_value" == "$parent" ]
+	check_err $? "Unexpected parent attr value $api_value != $parent"
+}
+
+rate_node_add()
+{
+	local handle=$1
+
+	devlink port function rate add $handle
+}
+
+rate_node_del()
+{
+	local handle=$1
+
+	devlink port function rate del $handle
+}
+
+rate_test()
+{
+	RET=0
+
+	echo $VF_COUNT > /sys/bus/netdevsim/devices/$DEV_NAME/sriov_numvfs
+	devlink dev eswitch set $DL_HANDLE mode switchdev
+	local leafs=`rate_leafs_get $DL_HANDLE`
+	local num_leafs=`echo $leafs | wc -w`
+	[ "$num_leafs" == "$VF_COUNT" ]
+	check_err $? "Expected $VF_COUNT rate leafs but got $num_leafs"
+
+	rate=10
+	for r_obj in $leafs
+	do
+		rate_attr_tx_rate_check $r_obj tx_share $rate \
+			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_share
+		rate=$(($rate+10))
+	done
+
+	rate=100
+	for r_obj in $leafs
+	do
+		rate_attr_tx_rate_check $r_obj tx_max $rate \
+			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_max
+		rate=$(($rate+100))
+	done
+
+	local node1_name='group1'
+	local node1="$DL_HANDLE/$node1_name"
+	rate_node_add "$node1"
+	check_err $? "Failed to add node $node1"
+
+	local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
+	[ $num_nodes == 1 ]
+	check_err $? "Expected 1 rate node in output but got $num_nodes"
+
+	local node_tx_share=10
+	rate_attr_tx_rate_check $node1 tx_share $node_tx_share \
+		$DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_share
+
+	local node_tx_max=100
+	rate_attr_tx_rate_check $node1 tx_max $node_tx_max \
+		$DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_max
+
+	rate_node_del "$node1"
+	check_err $? "Failed to delete node $node1"
+	local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
+	[ $num_nodes == 0 ]
+	check_err $? "Expected 0 rate node but got $num_nodes"
+
+	local node1_name='group1'
+	local node1="$DL_HANDLE/$node1_name"
+	rate_node_add "$node1"
+	check_err $? "Failed to add node $node1"
+
+	rate_attr_parent_check $r_obj $node1_name \
+		$DEBUGFS_DIR/ports/${r_obj##*/}/rate_parent
+
+	local node2_name='group2'
+	local node2="$DL_HANDLE/$node2_name"
+	rate_node_add "$node2"
+	check_err $? "Failed to add node $node2"
+
+	rate_attr_parent_check $node2 $node1_name \
+		$DEBUGFS_DIR/rate_nodes/$node2_name/rate_parent
+	rate_node_del "$node2"
+	check_err $? "Failed to delete node $node2"
+	rate_attr_set "$r_obj" noparent
+	check_err $? "Failed to unset $r_obj parent node"
+	rate_node_del "$node1"
+	check_err $? "Failed to delete node $node1"
+
+	log_test "rate test"
+}
+
 setup_prepare()
 {
 	modprobe netdevsim
diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
index da49ad2761b5..109900c817be 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
@@ -24,13 +24,15 @@ ALL_TESTS="
 NETDEVSIM_PATH=/sys/bus/netdevsim/
 DEV_ADDR=1337
 DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
 DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
 SLEEP_TIME=1
 NETDEV=""
 NUM_NETIFS=0
 source $lib_dir/lib.sh
+
+DEVLINK_DEV=
 source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
 
 require_command udevadm
 
@@ -163,6 +165,16 @@ trap_stats_test()
 			devlink_trap_action_set $trap_name "drop"
 			devlink_trap_stats_idle_test $trap_name
 			check_err $? "Stats of trap $trap_name not idle when action is drop"
+
+			echo "y"> $DEBUGFS_DIR/fail_trap_drop_counter_get
+			devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null
+			check_fail $? "Managed to read trap (hard dropped) statistics when should not"
+			echo "n"> $DEBUGFS_DIR/fail_trap_drop_counter_get
+			devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null
+			check_err $? "Did not manage to read trap (hard dropped) statistics when should"
+
+			devlink_trap_drop_stats_idle_test $trap_name
+			check_fail $? "Drop stats of trap $trap_name idle when should not"
 		else
 			devlink_trap_stats_idle_test $trap_name
 			check_fail $? "Stats of non-drop trap $trap_name idle when should not"
diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib.sh b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
index 251f228ce63e..fc794cd30389 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/fib.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
@@ -33,13 +33,15 @@ ALL_TESTS="
 NETDEVSIM_PATH=/sys/bus/netdevsim/
 DEV_ADDR=1337
 DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
 SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
 NUM_NETIFS=0
 source $lib_dir/lib.sh
-source $lib_dir/devlink_lib.sh
 source $lib_dir/fib_offload_lib.sh
 
+DEVLINK_DEV=
+source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
+
 ipv4_identical_routes()
 {
 	fib_ipv4_identical_routes_test "testns1"
diff --git a/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh b/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
index ba75c81cda91..e8e0dc088d6a 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
@@ -44,12 +44,14 @@ ALL_TESTS="
 NETDEVSIM_PATH=/sys/bus/netdevsim/
 DEV_ADDR=1337
 DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
 SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
 DEBUGFS_NET_DIR=/sys/kernel/debug/netdevsim/$DEV/
 NUM_NETIFS=0
 source $lib_dir/lib.sh
+
+DEVLINK_DEV=
 source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
 
 nexthop_check()
 {
diff --git a/tools/testing/selftests/drivers/net/netdevsim/psample.sh b/tools/testing/selftests/drivers/net/netdevsim/psample.sh
index ee10b1a8933c..e689ff7a0b12 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/psample.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/psample.sh
@@ -14,13 +14,15 @@ ALL_TESTS="
 NETDEVSIM_PATH=/sys/bus/netdevsim/
 DEV_ADDR=1337
 DEV=netdevsim${DEV_ADDR}
-DEVLINK_DEV=netdevsim/${DEV}
 SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
 PSAMPLE_DIR=/sys/kernel/debug/netdevsim/$DEV/psample/
 CAPTURE_FILE=$(mktemp)
 NUM_NETIFS=0
 source $lib_dir/lib.sh
+
+DEVLINK_DEV=
 source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
 
 # Available at https://github.com/Mellanox/libpsample
 require_command psample
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
index 61ae899cfc17..19deb9cdf72f 100644
--- a/tools/testing/selftests/net/.gitignore
+++ b/tools/testing/selftests/net/.gitignore
@@ -30,3 +30,4 @@ hwtstamp_config
 rxtimestamp
 timestamping
 txtimestamp
+so_netns_cookie
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 3915bb7bfc39..79c9eb0034d5 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -30,7 +30,7 @@ TEST_GEN_FILES =  socket nettest
 TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy reuseport_addr_any
 TEST_GEN_FILES += tcp_mmap tcp_inq psock_snd txring_overwrite
 TEST_GEN_FILES += udpgso udpgso_bench_tx udpgso_bench_rx ip_defrag
-TEST_GEN_FILES += so_txtime ipv6_flowlabel ipv6_flowlabel_mgr
+TEST_GEN_FILES += so_txtime ipv6_flowlabel ipv6_flowlabel_mgr so_netns_cookie
 TEST_GEN_FILES += tcp_fastopen_backup_key
 TEST_GEN_FILES += fin_ack_lat
 TEST_GEN_FILES += reuseaddr_ports_exhausted
diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
index 614d5477365a..6f905b53904f 100644
--- a/tools/testing/selftests/net/config
+++ b/tools/testing/selftests/net/config
@@ -1,4 +1,5 @@
 CONFIG_USER_NS=y
+CONFIG_NET_NS=y
 CONFIG_BPF_SYSCALL=y
 CONFIG_TEST_BPF=m
 CONFIG_NUMA=y
diff --git a/tools/testing/selftests/net/devlink_port_split.py b/tools/testing/selftests/net/devlink_port_split.py
index 834066d465fc..2b5d6ff87373 100755
--- a/tools/testing/selftests/net/devlink_port_split.py
+++ b/tools/testing/selftests/net/devlink_port_split.py
@@ -18,6 +18,8 @@ import sys
 #
 
 
+# Kselftest framework requirement - SKIP code is 4
+KSFT_SKIP=4
 Port = collections.namedtuple('Port', 'bus_info name')
 
 
@@ -239,7 +241,11 @@ def main(cmdline=None):
         assert stderr == ""
 
         devs = json.loads(stdout)['dev']
-        dev = list(devs.keys())[0]
+        if devs:
+            dev = list(devs.keys())[0]
+        else:
+            print("no devlink device was found, test skipped")
+            sys.exit(KSFT_SKIP)
 
     cmd = "devlink dev show %s" % dev
     stdout, stderr = run_command(cmd)
diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh
index 49774a8a7736..0d293391e9a4 100755
--- a/tools/testing/selftests/net/fib_nexthops.sh
+++ b/tools/testing/selftests/net/fib_nexthops.sh
@@ -925,6 +925,14 @@ ipv6_fcnal_runtime()
 	run_cmd "$IP nexthop add id 86 via 2001:db8:91::2 dev veth1"
 	run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
 
+	# route can not use prefsrc with nexthops
+	run_cmd "$IP ro add 2001:db8:101::2/128 nhid 86 from 2001:db8:91::1"
+	log_test $? 2 "IPv6 route can not use src routing with external nexthop"
+
+	# check cleanup path on invalid metric
+	run_cmd "$IP ro add 2001:db8:101::2/128 nhid 86 congctl lock foo"
+	log_test $? 2 "IPv6 route with invalid metric"
+
 	# rpfilter and default route
 	$IP nexthop flush >/dev/null 2>&1
 	run_cmd "ip netns exec me ip6tables -t mangle -I PREROUTING 1 -m rpfilter --invert -j DROP"
@@ -1366,6 +1374,10 @@ ipv4_fcnal_runtime()
 	run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
 	log_test $? 2 "Nexthop replace with invalid scope for existing route"
 
+	# check cleanup path on invalid metric
+	run_cmd "$IP ro add 172.16.101.2/32 nhid 22 congctl lock foo"
+	log_test $? 2 "IPv4 route with invalid metric"
+
 	#
 	# add route with nexthop and check traffic
 	#
diff --git a/tools/testing/selftests/net/forwarding/custom_multipath_hash.sh b/tools/testing/selftests/net/forwarding/custom_multipath_hash.sh
new file mode 100755
index 000000000000..a15d21dc035a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/custom_multipath_hash.sh
@@ -0,0 +1,364 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test traffic distribution between two paths when using custom hash policy.
+#
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |   198.51.100.{2-253}/24 |      |
+# |   2001:db8:1::{2-fd}/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|-------------------------+
+# | SW1                     |                         |
+# |                    $rp1 +                         |
+# |         198.51.100.1/24                           |
+# |        2001:db8:1::1/64                           |
+# |                                                   |
+# |                                                   |
+# |            $rp11 +             + $rp12            |
+# |     192.0.2.1/28 |             | 192.0.2.17/28    |
+# | 2001:db8:2::1/64 |             | 2001:db8:3::1/64 |
+# +------------------|-------------|------------------+
+#                    |             |
+# +------------------|-------------|------------------+
+# | SW2              |             |                  |
+# |                  |             |                  |
+# |            $rp21 +             + $rp22            |
+# |     192.0.2.2/28                 192.0.2.18/28    |
+# | 2001:db8:2::2/64                 2001:db8:3::2/64 |
+# |                                                   |
+# |                                                   |
+# |                    $rp2 +                         |
+# |          203.0.113.1/24 |                         |
+# |        2001:db8:4::1/64 |                         |
+# +-------------------------|-------------------------+
+#                           |
+# +-------------------------|------+
+# | H2                      |      |
+# |                     $h2 +      |
+# |    203.0.113.{2-253}/24        |
+# |   2001:db8:4::{2-fd}/64        |
+# +--------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	custom_hash
+"
+
+NUM_NETIFS=8
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.2/24 2001:db8:1::2/64
+	ip route add vrf v$h1 default via 198.51.100.1 dev $h1
+	ip -6 route add vrf v$h1 default via 2001:db8:1::1 dev $h1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 default
+	ip route del vrf v$h1 default
+	simple_if_fini $h1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $rp1 198.51.100.1/24 2001:db8:1::1/64
+	__simple_if_init $rp11 v$rp1 192.0.2.1/28 2001:db8:2::1/64
+	__simple_if_init $rp12 v$rp1 192.0.2.17/28 2001:db8:3::1/64
+
+	ip route add vrf v$rp1 203.0.113.0/24 \
+		nexthop via 192.0.2.2 dev $rp11 \
+		nexthop via 192.0.2.18 dev $rp12
+
+	ip -6 route add vrf v$rp1 2001:db8:4::/64 \
+		nexthop via 2001:db8:2::2 dev $rp11 \
+		nexthop via 2001:db8:3::2 dev $rp12
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$rp1 2001:db8:4::/64
+
+	ip route del vrf v$rp1 203.0.113.0/24
+
+	__simple_if_fini $rp12 192.0.2.17/28 2001:db8:3::1/64
+	__simple_if_fini $rp11 192.0.2.1/28 2001:db8:2::1/64
+	simple_if_fini $rp1 198.51.100.1/24 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $rp2 203.0.113.1/24 2001:db8:4::1/64
+	__simple_if_init $rp21 v$rp2 192.0.2.2/28 2001:db8:2::2/64
+	__simple_if_init $rp22 v$rp2 192.0.2.18/28 2001:db8:3::2/64
+
+	ip route add vrf v$rp2 198.51.100.0/24 \
+		nexthop via 192.0.2.1 dev $rp21 \
+		nexthop via 192.0.2.17 dev $rp22
+
+	ip -6 route add vrf v$rp2 2001:db8:1::/64 \
+		nexthop via 2001:db8:2::1 dev $rp21 \
+		nexthop via 2001:db8:3::1 dev $rp22
+}
+
+sw2_destroy()
+{
+	ip -6 route del vrf v$rp2 2001:db8:1::/64
+
+	ip route del vrf v$rp2 198.51.100.0/24
+
+	__simple_if_fini $rp22 192.0.2.18/28 2001:db8:3::2/64
+	__simple_if_fini $rp21 192.0.2.2/28 2001:db8:2::2/64
+	simple_if_fini $rp2 203.0.113.1/24 2001:db8:4::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 203.0.113.2/24 2001:db8:4::2/64
+	ip route add vrf v$h2 default via 203.0.113.1 dev $h2
+	ip -6 route add vrf v$h2 default via 2001:db8:4::1 dev $h2
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 default
+	ip route del vrf v$h2 default
+	simple_if_fini $h2 203.0.113.2/24 2001:db8:4::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	rp1=${NETIFS[p2]}
+
+	rp11=${NETIFS[p3]}
+	rp21=${NETIFS[p4]}
+
+	rp12=${NETIFS[p5]}
+	rp22=${NETIFS[p6]}
+
+	rp2=${NETIFS[p7]}
+
+	h2=${NETIFS[p8]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 203.0.113.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:4::2
+}
+
+send_src_ipv4()
+{
+	$MZ $h1 -q -p 64 -A "198.51.100.2-198.51.100.253" -B 203.0.113.2 \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B "203.0.113.2-203.0.113.253" \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_src_udp4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B 203.0.113.2 \
+		-d 1msec -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B 203.0.113.2 \
+		-d 1msec -t udp "sp=20000,dp=0-32768"
+}
+
+send_src_ipv6()
+{
+	$MZ -6 $h1 -q -p 64 -A "2001:db8:1::2-2001:db8:1::fd" -B 2001:db8:4::2 \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B "2001:db8:4::2-2001:db8:4::fd" \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_flowlabel()
+{
+	# Generate 16384 echo requests, each with a random flow label.
+	for _ in $(seq 1 16384); do
+		ip vrf exec v$h1 \
+			$PING6 2001:db8:4::2 -F 0 -c 1 -q >/dev/null 2>&1
+	done
+}
+
+send_src_udp6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:4::2 \
+		-d 1msec -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:4::2 \
+		-d 1msec -t udp "sp=20000,dp=0-32768"
+}
+
+custom_hash_test()
+{
+	local field="$1"; shift
+	local balanced="$1"; shift
+	local send_flows="$@"
+
+	RET=0
+
+	local t0_rp11=$(link_stats_tx_packets_get $rp11)
+	local t0_rp12=$(link_stats_tx_packets_get $rp12)
+
+	$send_flows
+
+	local t1_rp11=$(link_stats_tx_packets_get $rp11)
+	local t1_rp12=$(link_stats_tx_packets_get $rp12)
+
+	local d_rp11=$((t1_rp11 - t0_rp11))
+	local d_rp12=$((t1_rp12 - t0_rp12))
+
+	local diff=$((d_rp12 - d_rp11))
+	local sum=$((d_rp11 + d_rp12))
+
+	local pct=$(echo "$diff / $sum * 100" | bc -l)
+	local is_balanced=$(echo "-20 <= $pct && $pct <= 20" | bc)
+
+	[[ ( $is_balanced -eq 1 && $balanced == "balanced" ) ||
+	   ( $is_balanced -eq 0 && $balanced == "unbalanced" ) ]]
+	check_err $? "Expected traffic to be $balanced, but it is not"
+
+	log_test "Multipath hash field: $field ($balanced)"
+	log_info "Packets sent on path1 / path2: $d_rp11 / $d_rp12"
+}
+
+custom_hash_v4()
+{
+	log_info "Running IPv4 custom multipath hash tests"
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 3
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0001
+	custom_hash_test "Source IP" "balanced" send_src_ipv4
+	custom_hash_test "Source IP" "unbalanced" send_dst_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0002
+	custom_hash_test "Destination IP" "balanced" send_dst_ipv4
+	custom_hash_test "Destination IP" "unbalanced" send_src_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0010
+	custom_hash_test "Source port" "balanced" send_src_udp4
+	custom_hash_test "Source port" "unbalanced" send_dst_udp4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0020
+	custom_hash_test "Destination port" "balanced" send_dst_udp4
+	custom_hash_test "Destination port" "unbalanced" send_src_udp4
+
+	sysctl_restore net.ipv4.neigh.default.gc_thresh3
+	sysctl_restore net.ipv4.neigh.default.gc_thresh2
+	sysctl_restore net.ipv4.neigh.default.gc_thresh1
+
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+custom_hash_v6()
+{
+	log_info "Running IPv6 custom multipath hash tests"
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 3
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv6.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0001
+	custom_hash_test "Source IP" "balanced" send_src_ipv6
+	custom_hash_test "Source IP" "unbalanced" send_dst_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0002
+	custom_hash_test "Destination IP" "balanced" send_dst_ipv6
+	custom_hash_test "Destination IP" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0008
+	custom_hash_test "Flowlabel" "balanced" send_flowlabel
+	custom_hash_test "Flowlabel" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0010
+	custom_hash_test "Source port" "balanced" send_src_udp6
+	custom_hash_test "Source port" "unbalanced" send_dst_udp6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0020
+	custom_hash_test "Destination port" "balanced" send_dst_udp6
+	custom_hash_test "Destination port" "unbalanced" send_src_udp6
+
+	sysctl_restore net.ipv6.neigh.default.gc_thresh3
+	sysctl_restore net.ipv6.neigh.default.gc_thresh2
+	sysctl_restore net.ipv6.neigh.default.gc_thresh1
+
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+custom_hash()
+{
+	# Test that when the hash policy is set to custom, traffic is
+	# distributed only according to the fields set in the
+	# fib_multipath_hash_fields sysctl.
+	#
+	# Each time set a different field and make sure traffic is only
+	# distributed when the field is changed in the packet stream.
+	custom_hash_v4
+	custom_hash_v6
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh
index 9c12c4fd3afc..13d3d4428a32 100644
--- a/tools/testing/selftests/net/forwarding/devlink_lib.sh
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -18,6 +18,12 @@ if [[ ! -v DEVLINK_DEV ]]; then
 
 	DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
 			 -n | cut -d" " -f3)
+elif [[ ! -z "$DEVLINK_DEV" ]]; then
+	devlink dev show $DEVLINK_DEV &> /dev/null
+	if [ $? -ne 0 ]; then
+		echo "SKIP: devlink device \"$DEVLINK_DEV\" not found"
+		exit 1
+	fi
 fi
 
 ##############################################################################
@@ -318,6 +324,14 @@ devlink_trap_rx_bytes_get()
 		| jq '.[][][]["stats"]["rx"]["bytes"]'
 }
 
+devlink_trap_drop_packets_get()
+{
+	local trap_name=$1; shift
+
+	devlink -js trap show $DEVLINK_DEV trap $trap_name \
+		| jq '.[][][]["stats"]["rx"]["dropped"]'
+}
+
 devlink_trap_stats_idle_test()
 {
 	local trap_name=$1; shift
@@ -339,6 +353,24 @@ devlink_trap_stats_idle_test()
 	fi
 }
 
+devlink_trap_drop_stats_idle_test()
+{
+	local trap_name=$1; shift
+	local t0_packets t0_bytes
+
+	t0_packets=$(devlink_trap_drop_packets_get $trap_name)
+
+	sleep 1
+
+	t1_packets=$(devlink_trap_drop_packets_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets ]]; then
+		return 0
+	else
+		return 1
+	fi
+}
+
 devlink_traps_enable_all()
 {
 	local trap_name
diff --git a/tools/testing/selftests/net/forwarding/gre_custom_multipath_hash.sh b/tools/testing/selftests/net/forwarding/gre_custom_multipath_hash.sh
new file mode 100755
index 000000000000..a73f52efcb6c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_custom_multipath_hash.sh
@@ -0,0 +1,456 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test traffic distribution when there are multiple paths between an IPv4 GRE
+# tunnel. The tunnel carries IPv4 and IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |   198.51.100.{2-253}/24 |      |
+# |   2001:db8:1::{2-fd}/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|------------------+
+# | SW1                     |                  |
+# |                    $ol1 +                  |
+# |         198.51.100.1/24                    |
+# |        2001:db8:1::1/64                    |
+# |                                            |
+# |   + g1 (gre)                               |
+# |     loc=192.0.2.1                          |
+# |     rem=192.0.2.2 --.                      |
+# |     tos=inherit     |                      |
+# |                     v                      |
+# |                     + $ul1                 |
+# |                     | 192.0.2.17/28        |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# | SW2                 |                      |
+# |               $ul21 +                      |
+# |       192.0.2.18/28 |                      |
+# |                     |                      |
+# !   __________________+___                   |
+# |  /                      \                  |
+# |  |                      |                  |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan) |
+# |  | 192.0.2.33/28        | 192.0.2.49/28    |
+# |  |                      |                  |
+# +--|----------------------|------------------+
+#    |                      |
+# +--|----------------------|------------------+
+# |  |                      |                  |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan) |
+# |  | 192.0.2.34/28        | 192.0.2.50/28    |
+# |  |                      |                  |
+# |  \__________________+___/                  |
+# |                     |                      |
+# |                     |                      |
+# |               $ul31 +                      |
+# |       192.0.2.65/28 |                  SW3 |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# |                     + $ul4                 |
+# |                     ^ 192.0.2.66/28        |
+# |                     |                      |
+# |   + g2 (gre)        |                      |
+# |     loc=192.0.2.2   |                      |
+# |     rem=192.0.2.1 --'                      |
+# |     tos=inherit                            |
+# |                                            |
+# |                    $ol4 +                  |
+# |          203.0.113.1/24 |                  |
+# |        2001:db8:2::1/64 |              SW4 |
+# +-------------------------|------------------+
+#                           |
+# +-------------------------|------+
+# |                         |      |
+# |                     $h2 +      |
+# |    203.0.113.{2-253}/24        |
+# |   2001:db8:2::{2-fd}/64     H2 |
+# +--------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	custom_hash
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.2/24 2001:db8:1::2/64
+	ip route add vrf v$h1 default via 198.51.100.1 dev $h1
+	ip -6 route add vrf v$h1 default via 2001:db8:1::1 dev $h1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 default
+	ip route del vrf v$h1 default
+	simple_if_fini $h1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 198.51.100.1/24 2001:db8:1::1/64
+	__simple_if_init $ul1 v$ol1 192.0.2.17/28
+
+	tunnel_create g1 gre 192.0.2.1 192.0.2.2 tos inherit dev v$ol1
+	__simple_if_init g1 v$ol1 192.0.2.1/32
+	ip route add vrf v$ol1 192.0.2.2/32 via 192.0.2.18
+
+	ip route add vrf v$ol1 203.0.113.0/24 dev g1
+	ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$ol1 2001:db8:2::/64
+	ip route del vrf v$ol1 203.0.113.0/24
+
+	ip route del vrf v$ol1 192.0.2.2/32
+	__simple_if_fini g1 192.0.2.1/32
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 192.0.2.17/28
+	simple_if_fini $ol1 198.51.100.1/24 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 192.0.2.18/28
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 192.0.2.33/28
+	vlan_create $ul22 222 v$ul21 192.0.2.49/28
+
+	ip route add vrf v$ul21 192.0.2.1/32 via 192.0.2.17
+	ip route add vrf v$ul21 192.0.2.2/32 \
+	   nexthop via 192.0.2.34 \
+	   nexthop via 192.0.2.50
+}
+
+sw2_destroy()
+{
+	ip route del vrf v$ul21 192.0.2.2/32
+	ip route del vrf v$ul21 192.0.2.1/32
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 192.0.2.18/28
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 192.0.2.65/28
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 192.0.2.34/28
+	vlan_create $ul32 222 v$ul31 192.0.2.50/28
+
+	ip route add vrf v$ul31 192.0.2.2/32 via 192.0.2.66
+	ip route add vrf v$ul31 192.0.2.1/32 \
+	   nexthop via 192.0.2.33 \
+	   nexthop via 192.0.2.49
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip route del vrf v$ul31 192.0.2.1/32
+	ip route del vrf v$ul31 192.0.2.2/32
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 192.0.2.65/28
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 203.0.113.1/24 2001:db8:2::1/64
+	__simple_if_init $ul4 v$ol4 192.0.2.66/28
+
+	tunnel_create g2 gre 192.0.2.2 192.0.2.1 tos inherit dev v$ol4
+	__simple_if_init g2 v$ol4 192.0.2.2/32
+	ip route add vrf v$ol4 192.0.2.1/32 via 192.0.2.65
+
+	ip route add vrf v$ol4 198.51.100.0/24 dev g2
+	ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+	ip -6 route del vrf v$ol4 2001:db8:1::/64
+	ip route del vrf v$ol4 198.51.100.0/24
+
+	ip route del vrf v$ol4 192.0.2.1/32
+	__simple_if_fini g2 192.0.2.2/32
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 192.0.2.66/28
+	simple_if_fini $ol4 203.0.113.1/24 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 203.0.113.2/24 2001:db8:2::2/64
+	ip route add vrf v$h2 default via 203.0.113.1 dev $h2
+	ip -6 route add vrf v$h2 default via 2001:db8:2::1 dev $h2
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 default
+	ip route del vrf v$h2 default
+	simple_if_fini $h2 203.0.113.2/24 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 203.0.113.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+send_src_ipv4()
+{
+	$MZ $h1 -q -p 64 -A "198.51.100.2-198.51.100.253" -B 203.0.113.2 \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B "203.0.113.2-203.0.113.253" \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_src_udp4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B 203.0.113.2 \
+		-d 1msec -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B 203.0.113.2 \
+		-d 1msec -t udp "sp=20000,dp=0-32768"
+}
+
+send_src_ipv6()
+{
+	$MZ -6 $h1 -q -p 64 -A "2001:db8:1::2-2001:db8:1::fd" -B 2001:db8:2::2 \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B "2001:db8:2::2-2001:db8:2::fd" \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_flowlabel()
+{
+	# Generate 16384 echo requests, each with a random flow label.
+	for _ in $(seq 1 16384); do
+		ip vrf exec v$h1 \
+			$PING6 2001:db8:2::2 -F 0 -c 1 -q >/dev/null 2>&1
+	done
+}
+
+send_src_udp6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d 1msec -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d 1msec -t udp "sp=20000,dp=0-32768"
+}
+
+custom_hash_test()
+{
+	local field="$1"; shift
+	local balanced="$1"; shift
+	local send_flows="$@"
+
+	RET=0
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	$send_flows
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+
+	local diff=$((d222 - d111))
+	local sum=$((d111 + d222))
+
+	local pct=$(echo "$diff / $sum * 100" | bc -l)
+	local is_balanced=$(echo "-20 <= $pct && $pct <= 20" | bc)
+
+	[[ ( $is_balanced -eq 1 && $balanced == "balanced" ) ||
+	   ( $is_balanced -eq 0 && $balanced == "unbalanced" ) ]]
+	check_err $? "Expected traffic to be $balanced, but it is not"
+
+	log_test "Multipath hash field: $field ($balanced)"
+	log_info "Packets sent on path1 / path2: $d111 / $d222"
+}
+
+custom_hash_v4()
+{
+	log_info "Running IPv4 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv4
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv4
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp4
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp4
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp4
+
+	sysctl_restore net.ipv4.neigh.default.gc_thresh3
+	sysctl_restore net.ipv4.neigh.default.gc_thresh2
+	sysctl_restore net.ipv4.neigh.default.gc_thresh1
+}
+
+custom_hash_v6()
+{
+	log_info "Running IPv6 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv6.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv6
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv6
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0200
+	custom_hash_test "Inner flowlabel" "balanced" send_flowlabel
+	custom_hash_test "Inner flowlabel" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp6
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp6
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp6
+
+	sysctl_restore net.ipv6.neigh.default.gc_thresh3
+	sysctl_restore net.ipv6.neigh.default.gc_thresh2
+	sysctl_restore net.ipv6.neigh.default.gc_thresh1
+}
+
+custom_hash()
+{
+	# Test that when the hash policy is set to custom, traffic is
+	# distributed only according to the fields set in the
+	# fib_multipath_hash_fields sysctl.
+	#
+	# Each time set a different field and make sure traffic is only
+	# distributed when the field is changed in the packet stream.
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 3
+
+	custom_hash_v4
+	custom_hash_v6
+
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_custom_multipath_hash.sh b/tools/testing/selftests/net/forwarding/ip6gre_custom_multipath_hash.sh
new file mode 100755
index 000000000000..8fea2c2e0b25
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_custom_multipath_hash.sh
@@ -0,0 +1,458 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test traffic distribution when there are multiple paths between an IPv6 GRE
+# tunnel. The tunnel carries IPv4 and IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |   198.51.100.{2-253}/24 |      |
+# |   2001:db8:1::{2-fd}/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|-------------------+
+# | SW1                     |                   |
+# |                    $ol1 +                   |
+# |         198.51.100.1/24                     |
+# |        2001:db8:1::1/64                     |
+# |                                             |
+# |+ g1 (ip6gre)                                |
+# |  loc=2001:db8:3::1                          |
+# |  rem=2001:db8:3::2 -.                       |
+# |     tos=inherit     |                       |
+# |                     v                       |
+# |                     + $ul1                  |
+# |                     | 2001:db8:10::1/64     |
+# +---------------------|-----------------------+
+#                       |
+# +---------------------|-----------------------+
+# | SW2                 |                       |
+# |               $ul21 +                       |
+# |   2001:db8:10::2/64 |                       |
+# |                     |                       |
+# !   __________________+___                    |
+# |  /                      \                   |
+# |  |                      |                   |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan)  |
+# |  | 2001:db8:11::1/64    | 2001:db8:12::1/64 |
+# |  |                      |                   |
+# +--|----------------------|-------------------+
+#    |                      |
+# +--|----------------------|-------------------+
+# |  |                      |                   |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan)  |
+# |  | 2001:db8:11::2/64    | 2001:db8:12::2/64 |
+# |  |                      |                   |
+# |  \__________________+___/                   |
+# |                     |                       |
+# |                     |                       |
+# |               $ul31 +                       |
+# |   2001:db8:13::1/64 |                   SW3 |
+# +---------------------|-----------------------+
+#                       |
+# +---------------------|-----------------------+
+# |                     + $ul4                  |
+# |                     ^ 2001:db8:13::2/64     |
+# |                     |                       |
+# |+ g2 (ip6gre)        |                       |
+# |  loc=2001:db8:3::2  |                       |
+# |  rem=2001:db8:3::1 -'                       |
+# |  tos=inherit                                |
+# |                                             |
+# |                    $ol4 +                   |
+# |          203.0.113.1/24 |                   |
+# |        2001:db8:2::1/64 |               SW4 |
+# +-------------------------|-------------------+
+#                           |
+# +-------------------------|------+
+# |                         |      |
+# |                     $h2 +      |
+# |    203.0.113.{2-253}/24        |
+# |   2001:db8:2::{2-fd}/64     H2 |
+# +--------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	custom_hash
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.2/24 2001:db8:1::2/64
+	ip route add vrf v$h1 default via 198.51.100.1 dev $h1
+	ip -6 route add vrf v$h1 default via 2001:db8:1::1 dev $h1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 default
+	ip route del vrf v$h1 default
+	simple_if_fini $h1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 198.51.100.1/24 2001:db8:1::1/64
+	__simple_if_init $ul1 v$ol1 2001:db8:10::1/64
+
+	tunnel_create g1 ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \
+		dev v$ol1
+	__simple_if_init g1 v$ol1 2001:db8:3::1/128
+	ip route add vrf v$ol1 2001:db8:3::2/128 via 2001:db8:10::2
+
+	ip route add vrf v$ol1 203.0.113.0/24 dev g1
+	ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$ol1 2001:db8:2::/64
+	ip route del vrf v$ol1 203.0.113.0/24
+
+	ip route del vrf v$ol1 2001:db8:3::2/128
+	__simple_if_fini g1 2001:db8:3::1/128
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 2001:db8:10::1/64
+	simple_if_fini $ol1 198.51.100.1/24 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 2001:db8:10::2/64
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 2001:db8:11::1/64
+	vlan_create $ul22 222 v$ul21 2001:db8:12::1/64
+
+	ip -6 route add vrf v$ul21 2001:db8:3::1/128 via 2001:db8:10::1
+	ip -6 route add vrf v$ul21 2001:db8:3::2/128 \
+	   nexthop via 2001:db8:11::2 \
+	   nexthop via 2001:db8:12::2
+}
+
+sw2_destroy()
+{
+	ip -6 route del vrf v$ul21 2001:db8:3::2/128
+	ip -6 route del vrf v$ul21 2001:db8:3::1/128
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 2001:db8:10::2/64
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 2001:db8:13::1/64
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 2001:db8:11::2/64
+	vlan_create $ul32 222 v$ul31 2001:db8:12::2/64
+
+	ip -6 route add vrf v$ul31 2001:db8:3::2/128 via 2001:db8:13::2
+	ip -6 route add vrf v$ul31 2001:db8:3::1/128 \
+	   nexthop via 2001:db8:11::1 \
+	   nexthop via 2001:db8:12::1
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip -6 route del vrf v$ul31 2001:db8:3::1/128
+	ip -6 route del vrf v$ul31 2001:db8:3::2/128
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 2001:db8:13::1/64
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 203.0.113.1/24 2001:db8:2::1/64
+	__simple_if_init $ul4 v$ol4 2001:db8:13::2/64
+
+	tunnel_create g2 ip6gre 2001:db8:3::2 2001:db8:3::1 tos inherit \
+		dev v$ol4
+	__simple_if_init g2 v$ol4 2001:db8:3::2/128
+	ip -6 route add vrf v$ol4 2001:db8:3::1/128 via 2001:db8:13::1
+
+	ip route add vrf v$ol4 198.51.100.0/24 dev g2
+	ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+	ip -6 route del vrf v$ol4 2001:db8:1::/64
+	ip route del vrf v$ol4 198.51.100.0/24
+
+	ip -6 route del vrf v$ol4 2001:db8:3::1/128
+	__simple_if_fini g2 2001:db8:3::2/128
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 2001:db8:13::2/64
+	simple_if_fini $ol4 203.0.113.1/24 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 203.0.113.2/24 2001:db8:2::2/64
+	ip route add vrf v$h2 default via 203.0.113.1 dev $h2
+	ip -6 route add vrf v$h2 default via 2001:db8:2::1 dev $h2
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 default
+	ip route del vrf v$h2 default
+	simple_if_fini $h2 203.0.113.2/24 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 203.0.113.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+send_src_ipv4()
+{
+	$MZ $h1 -q -p 64 -A "198.51.100.2-198.51.100.253" -B 203.0.113.2 \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B "203.0.113.2-203.0.113.253" \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_src_udp4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B 203.0.113.2 \
+		-d 1msec -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp4()
+{
+	$MZ $h1 -q -p 64 -A 198.51.100.2 -B 203.0.113.2 \
+		-d 1msec -t udp "sp=20000,dp=0-32768"
+}
+
+send_src_ipv6()
+{
+	$MZ -6 $h1 -q -p 64 -A "2001:db8:1::2-2001:db8:1::fd" -B 2001:db8:2::2 \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B "2001:db8:2::2-2001:db8:2::fd" \
+		-d 1msec -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_flowlabel()
+{
+	# Generate 16384 echo requests, each with a random flow label.
+	for _ in $(seq 1 16384); do
+		ip vrf exec v$h1 \
+			$PING6 2001:db8:2::2 -F 0 -c 1 -q >/dev/null 2>&1
+	done
+}
+
+send_src_udp6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d 1msec -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp6()
+{
+	$MZ -6 $h1 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d 1msec -t udp "sp=20000,dp=0-32768"
+}
+
+custom_hash_test()
+{
+	local field="$1"; shift
+	local balanced="$1"; shift
+	local send_flows="$@"
+
+	RET=0
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	$send_flows
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+
+	local diff=$((d222 - d111))
+	local sum=$((d111 + d222))
+
+	local pct=$(echo "$diff / $sum * 100" | bc -l)
+	local is_balanced=$(echo "-20 <= $pct && $pct <= 20" | bc)
+
+	[[ ( $is_balanced -eq 1 && $balanced == "balanced" ) ||
+	   ( $is_balanced -eq 0 && $balanced == "unbalanced" ) ]]
+	check_err $? "Expected traffic to be $balanced, but it is not"
+
+	log_test "Multipath hash field: $field ($balanced)"
+	log_info "Packets sent on path1 / path2: $d111 / $d222"
+}
+
+custom_hash_v4()
+{
+	log_info "Running IPv4 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv4
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv4
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv4
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv4
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp4
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp4
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp4
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp4
+
+	sysctl_restore net.ipv4.neigh.default.gc_thresh3
+	sysctl_restore net.ipv4.neigh.default.gc_thresh2
+	sysctl_restore net.ipv4.neigh.default.gc_thresh1
+}
+
+custom_hash_v6()
+{
+	log_info "Running IPv6 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv6.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv6
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv6
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0200
+	custom_hash_test "Inner flowlabel" "balanced" send_flowlabel
+	custom_hash_test "Inner flowlabel" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp6
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp6
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp6
+
+	sysctl_restore net.ipv6.neigh.default.gc_thresh3
+	sysctl_restore net.ipv6.neigh.default.gc_thresh2
+	sysctl_restore net.ipv6.neigh.default.gc_thresh1
+}
+
+custom_hash()
+{
+	# Test that when the hash policy is set to custom, traffic is
+	# distributed only according to the fields set in the
+	# fib_multipath_hash_fields sysctl.
+	#
+	# Each time set a different field and make sure traffic is only
+	# distributed when the field is changed in the packet stream.
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 3
+
+	custom_hash_v4
+	custom_hash_v6
+
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh
index 55eeacf59241..64fbd211d907 100755
--- a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh
+++ b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh
@@ -75,7 +75,9 @@ switch_destroy()
 	tc qdisc del dev $swp2 clsact
 	tc qdisc del dev $swp1 clsact
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }
diff --git a/tools/testing/selftests/net/forwarding/pedit_l4port.sh b/tools/testing/selftests/net/forwarding/pedit_l4port.sh
index 5f20d289ee43..10e594c55117 100755
--- a/tools/testing/selftests/net/forwarding/pedit_l4port.sh
+++ b/tools/testing/selftests/net/forwarding/pedit_l4port.sh
@@ -71,7 +71,9 @@ switch_destroy()
 	tc qdisc del dev $swp2 clsact
 	tc qdisc del dev $swp1 clsact
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }
diff --git a/tools/testing/selftests/net/forwarding/skbedit_priority.sh b/tools/testing/selftests/net/forwarding/skbedit_priority.sh
index e3bd8a6bb8b4..bde11dc27873 100755
--- a/tools/testing/selftests/net/forwarding/skbedit_priority.sh
+++ b/tools/testing/selftests/net/forwarding/skbedit_priority.sh
@@ -72,7 +72,9 @@ switch_destroy()
 	tc qdisc del dev $swp2 clsact
 	tc qdisc del dev $swp1 clsact
 
+	ip link set dev $swp2 down
 	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
 	ip link set dev $swp1 nomaster
 	ip link del dev br1
 }
diff --git a/tools/testing/selftests/net/icmp_redirect.sh b/tools/testing/selftests/net/icmp_redirect.sh
index bf361f30d6ef..c19ecc6a8614 100755
--- a/tools/testing/selftests/net/icmp_redirect.sh
+++ b/tools/testing/selftests/net/icmp_redirect.sh
@@ -63,10 +63,14 @@ log_test()
 	local rc=$1
 	local expected=$2
 	local msg="$3"
+	local xfail=$4
 
 	if [ ${rc} -eq ${expected} ]; then
 		printf "TEST: %-60s  [ OK ]\n" "${msg}"
 		nsuccess=$((nsuccess+1))
+	elif [ ${rc} -eq ${xfail} ]; then
+		printf "TEST: %-60s  [XFAIL]\n" "${msg}"
+		nxfail=$((nxfail+1))
 	else
 		ret=1
 		nfail=$((nfail+1))
@@ -322,7 +326,7 @@ check_exception()
 		ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
 		grep -v "mtu" | grep -q "${R1_LLADDR}"
 	fi
-	log_test $? 0 "IPv6: ${desc}"
+	log_test $? 0 "IPv6: ${desc}" 1
 }
 
 run_ping()
@@ -488,6 +492,7 @@ which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
 ret=0
 nsuccess=0
 nfail=0
+nxfail=0
 
 while getopts :pv o
 do
@@ -532,5 +537,6 @@ fi
 
 printf "\nTests passed: %3d\n" ${nsuccess}
 printf "Tests failed: %3d\n"   ${nfail}
+printf "Tests xfailed: %3d\n"  ${nxfail}
 
 exit $ret
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
index d88e1fdfb147..89c4753c2760 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -6,6 +6,7 @@
 #include <limits.h>
 #include <fcntl.h>
 #include <string.h>
+#include <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -25,6 +26,7 @@
 #include <netinet/in.h>
 
 #include <linux/tcp.h>
+#include <linux/time_types.h>
 
 extern int optind;
 
@@ -66,6 +68,13 @@ static unsigned int cfg_do_w;
 static int cfg_wait;
 static uint32_t cfg_mark;
 
+struct cfg_cmsg_types {
+	unsigned int cmsg_enabled:1;
+	unsigned int timestampns:1;
+};
+
+static struct cfg_cmsg_types cfg_cmsg_types;
+
 static void die_usage(void)
 {
 	fprintf(stderr, "Usage: mptcp_connect [-6] [-u] [-s MPTCP|TCP] [-p port] [-m mode]"
@@ -80,11 +89,22 @@ static void die_usage(void)
 	fprintf(stderr, "\t-M mark -- set socket packet mark\n");
 	fprintf(stderr, "\t-u -- check mptcp ulp\n");
 	fprintf(stderr, "\t-w num -- wait num sec before closing the socket\n");
+	fprintf(stderr, "\t-c cmsg -- test cmsg type <cmsg>\n");
 	fprintf(stderr,
 		"\t-P [saveWithPeek|saveAfterPeek] -- save data with/after MSG_PEEK form tcp socket\n");
 	exit(1);
 }
 
+static void xerror(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	exit(1);
+}
+
 static void handle_signal(int nr)
 {
 	quit = true;
@@ -338,6 +358,58 @@ static size_t do_write(const int fd, char *buf, const size_t len)
 	return offset;
 }
 
+static void process_cmsg(struct msghdr *msgh)
+{
+	struct __kernel_timespec ts;
+	bool ts_found = false;
+	struct cmsghdr *cmsg;
+
+	for (cmsg = CMSG_FIRSTHDR(msgh); cmsg ; cmsg = CMSG_NXTHDR(msgh, cmsg)) {
+		if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SO_TIMESTAMPNS_NEW) {
+			memcpy(&ts, CMSG_DATA(cmsg), sizeof(ts));
+			ts_found = true;
+			continue;
+		}
+	}
+
+	if (cfg_cmsg_types.timestampns) {
+		if (!ts_found)
+			xerror("TIMESTAMPNS not present\n");
+	}
+}
+
+static ssize_t do_recvmsg_cmsg(const int fd, char *buf, const size_t len)
+{
+	char msg_buf[8192];
+	struct iovec iov = {
+		.iov_base = buf,
+		.iov_len = len,
+	};
+	struct msghdr msg = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+		.msg_control = msg_buf,
+		.msg_controllen = sizeof(msg_buf),
+	};
+	int flags = 0;
+	int ret = recvmsg(fd, &msg, flags);
+
+	if (ret <= 0)
+		return ret;
+
+	if (msg.msg_controllen && !cfg_cmsg_types.cmsg_enabled)
+		xerror("got %lu bytes of cmsg data, expected 0\n",
+		       (unsigned long)msg.msg_controllen);
+
+	if (msg.msg_controllen == 0 && cfg_cmsg_types.cmsg_enabled)
+		xerror("%s\n", "got no cmsg data");
+
+	if (msg.msg_controllen)
+		process_cmsg(&msg);
+
+	return ret;
+}
+
 static ssize_t do_rnd_read(const int fd, char *buf, const size_t len)
 {
 	int ret = 0;
@@ -357,6 +429,8 @@ static ssize_t do_rnd_read(const int fd, char *buf, const size_t len)
 	} else if (cfg_peek == CFG_AFTER_PEEK) {
 		ret = recv(fd, buf, cap, MSG_PEEK);
 		ret = (ret < 0) ? ret : read(fd, buf, cap);
+	} else if (cfg_cmsg_types.cmsg_enabled) {
+		ret = do_recvmsg_cmsg(fd, buf, cap);
 	} else {
 		ret = read(fd, buf, cap);
 	}
@@ -786,6 +860,48 @@ static void init_rng(void)
 	srand(foo);
 }
 
+static void xsetsockopt(int fd, int level, int optname, const void *optval, socklen_t optlen)
+{
+	int err;
+
+	err = setsockopt(fd, level, optname, optval, optlen);
+	if (err) {
+		perror("setsockopt");
+		exit(1);
+	}
+}
+
+static void apply_cmsg_types(int fd, const struct cfg_cmsg_types *cmsg)
+{
+	static const unsigned int on = 1;
+
+	if (cmsg->timestampns)
+		xsetsockopt(fd, SOL_SOCKET, SO_TIMESTAMPNS_NEW, &on, sizeof(on));
+}
+
+static void parse_cmsg_types(const char *type)
+{
+	char *next = strchr(type, ',');
+	unsigned int len = 0;
+
+	cfg_cmsg_types.cmsg_enabled = 1;
+
+	if (next) {
+		parse_cmsg_types(next + 1);
+		len = next - type;
+	} else {
+		len = strlen(type);
+	}
+
+	if (strncmp(type, "TIMESTAMPNS", len) == 0) {
+		cfg_cmsg_types.timestampns = 1;
+		return;
+	}
+
+	fprintf(stderr, "Unrecognized cmsg option %s\n", type);
+	exit(1);
+}
+
 int main_loop(void)
 {
 	int fd;
@@ -801,6 +917,8 @@ int main_loop(void)
 		set_rcvbuf(fd, cfg_rcvbuf);
 	if (cfg_sndbuf)
 		set_sndbuf(fd, cfg_sndbuf);
+	if (cfg_cmsg_types.cmsg_enabled)
+		apply_cmsg_types(fd, &cfg_cmsg_types);
 
 	return copyfd_io(0, fd, 1);
 }
@@ -887,7 +1005,7 @@ static void parse_opts(int argc, char **argv)
 {
 	int c;
 
-	while ((c = getopt(argc, argv, "6jr:lp:s:hut:m:S:R:w:M:P:")) != -1) {
+	while ((c = getopt(argc, argv, "6jr:lp:s:hut:m:S:R:w:M:P:c:")) != -1) {
 		switch (c) {
 		case 'j':
 			cfg_join = true;
@@ -943,6 +1061,9 @@ static void parse_opts(int argc, char **argv)
 		case 'P':
 			cfg_peek = parse_peek(optarg);
 			break;
+		case 'c':
+			parse_cmsg_types(optarg);
+			break;
 		}
 	}
 
@@ -976,6 +1097,8 @@ int main(int argc, char *argv[])
 			set_sndbuf(fd, cfg_sndbuf);
 		if (cfg_mark)
 			set_mark(fd, cfg_mark);
+		if (cfg_cmsg_types.cmsg_enabled)
+			apply_cmsg_types(fd, &cfg_cmsg_types);
 
 		return main_loop_s(fd);
 	}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
index 2b495dc8d78e..559173a8e387 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
@@ -3,7 +3,7 @@
 
 time_start=$(date +%s)
 
-optstring="S:R:d:e:l:r:h4cm:f:t"
+optstring="S:R:d:e:l:r:h4cm:f:tC"
 ret=0
 sin=""
 sout=""
@@ -22,6 +22,7 @@ sndbuf=0
 rcvbuf=0
 options_log=true
 do_tcp=0
+checksum=false
 filesize=0
 
 if [ $tc_loss -eq 100 ];then
@@ -47,6 +48,7 @@ usage() {
 	echo -e "\t-R: set rcvbuf value (default: use kernel default)"
 	echo -e "\t-m: test mode (poll, sendfile; default: poll)"
 	echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
+	echo -e "\t-C: enable the MPTCP data checksum"
 }
 
 while getopts "$optstring" option;do
@@ -104,6 +106,9 @@ while getopts "$optstring" option;do
 	"t")
 		do_tcp=$((do_tcp+1))
 		;;
+	"C")
+		checksum=true
+		;;
 	"?")
 		usage $0
 		exit 1
@@ -197,6 +202,12 @@ ip -net "$ns4" link set ns4eth3 up
 ip -net "$ns4" route add default via 10.0.3.2
 ip -net "$ns4" route add default via dead:beef:3::2
 
+if $checksum; then
+	for i in "$ns1" "$ns2" "$ns3" "$ns4";do
+		ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1
+	done
+fi
+
 set_ethtool_flags() {
 	local ns="$1"
 	local dev="$2"
@@ -669,6 +680,25 @@ run_tests_peekmode()
 	run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}"
 }
 
+display_time()
+{
+	time_end=$(date +%s)
+	time_run=$((time_end-time_start))
+
+	echo "Time: ${time_run} seconds"
+}
+
+stop_if_error()
+{
+	local msg="$1"
+
+	if [ ${ret} -ne 0 ]; then
+		echo "FAIL: ${msg}" 1>&2
+		display_time
+		exit ${ret}
+	fi
+}
+
 make_file "$cin" "client"
 make_file "$sin" "server"
 
@@ -676,6 +706,8 @@ check_mptcp_disabled
 
 check_mptcp_ulp_setsockopt
 
+stop_if_error "The kernel configuration is not valid for MPTCP"
+
 echo "INFO: validating network environment with pings"
 for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
 	do_ping "$ns1" $sender 10.0.1.1
@@ -695,6 +727,8 @@ for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
 	do_ping "$ns4" $sender dead:beef:3::1
 done
 
+stop_if_error "Could not even run ping tests"
+
 [ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
 echo -n "INFO: Using loss of $tc_loss "
 test "$tc_delay" -gt 0 && echo -n "delay $tc_delay ms "
@@ -722,18 +756,13 @@ echo "on ns3eth4"
 
 tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
 
-for sender in $ns1 $ns2 $ns3 $ns4;do
-	run_tests_lo "$ns1" "$sender" 10.0.1.1 1
-	if [ $ret -ne 0 ] ;then
-		echo "FAIL: Could not even run loopback test" 1>&2
-		exit $ret
-	fi
-	run_tests_lo "$ns1" $sender dead:beef:1::1 1
-	if [ $ret -ne 0 ] ;then
-		echo "FAIL: Could not even run loopback v6 test" 2>&1
-		exit $ret
-	fi
+run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
+stop_if_error "Could not even run loopback test"
 
+run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
+stop_if_error "Could not even run loopback v6 test"
+
+for sender in $ns1 $ns2 $ns3 $ns4;do
 	# ns1<->ns2 is not subject to reordering/tc delays. Use it to test
 	# mptcp syncookie support.
 	if [ $sender = $ns1 ]; then
@@ -742,6 +771,9 @@ for sender in $ns1 $ns2 $ns3 $ns4;do
 		ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
 	fi
 
+	run_tests "$ns1" $sender 10.0.1.1
+	run_tests "$ns1" $sender dead:beef:1::1
+
 	run_tests "$ns2" $sender 10.0.1.2
 	run_tests "$ns2" $sender dead:beef:1::2
 	run_tests "$ns2" $sender 10.0.2.1
@@ -754,14 +786,13 @@ for sender in $ns1 $ns2 $ns3 $ns4;do
 
 	run_tests "$ns4" $sender 10.0.3.1
 	run_tests "$ns4" $sender dead:beef:3::1
+
+	stop_if_error "Tests with $sender as a sender have failed"
 done
 
 run_tests_peekmode "saveWithPeek"
 run_tests_peekmode "saveAfterPeek"
+stop_if_error "Tests with peek mode have failed"
 
-time_end=$(date +%s)
-time_run=$((time_end-time_start))
-
-echo "Time: ${time_run} seconds"
-
+display_time
 exit $ret
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index fd99485cf2a4..9a191c1a5de8 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -12,6 +12,7 @@ timeout_poll=30
 timeout_test=$((timeout_poll * 2 + 1))
 mptcp_connect=""
 capture=0
+checksum=0
 do_all_tests=1
 
 TEST_COUNT=0
@@ -49,6 +50,9 @@ init()
 		ip netns exec $netns sysctl -q net.mptcp.enabled=1
 		ip netns exec $netns sysctl -q net.ipv4.conf.all.rp_filter=0
 		ip netns exec $netns sysctl -q net.ipv4.conf.default.rp_filter=0
+		if [ $checksum -eq 1 ]; then
+			ip netns exec $netns sysctl -q net.mptcp.checksum_enabled=1
+		fi
 	done
 
 	#  ns1              ns2
@@ -124,6 +128,28 @@ reset_with_add_addr_timeout()
 		-j DROP
 }
 
+reset_with_checksum()
+{
+	local ns1_enable=$1
+	local ns2_enable=$2
+
+	reset
+
+	ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=$ns1_enable
+	ip netns exec $ns2 sysctl -q net.mptcp.checksum_enabled=$ns2_enable
+}
+
+reset_with_allow_join_id0()
+{
+	local ns1_enable=$1
+	local ns2_enable=$2
+
+	reset
+
+	ip netns exec $ns1 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns1_enable
+	ip netns exec $ns2 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns2_enable
+}
+
 ip -Version > /dev/null 2>&1
 if [ $? -ne 0 ];then
 	echo "SKIP: Could not run test without ip tool"
@@ -476,6 +502,45 @@ run_tests()
 	fi
 }
 
+chk_csum_nr()
+{
+	local msg=${1:-""}
+	local count
+	local dump_stats
+
+	if [ ! -z "$msg" ]; then
+		printf "%02u" "$TEST_COUNT"
+	else
+		echo -n "  "
+	fi
+	printf " %-36s %s" "$msg" "sum"
+	count=`ip netns exec $ns1 nstat -as | grep MPTcpExtDataCsumErr | awk '{print $2}'`
+	[ -z "$count" ] && count=0
+	if [ "$count" != 0 ]; then
+		echo "[fail] got $count data checksum error[s] expected 0"
+		ret=1
+		dump_stats=1
+	else
+		echo -n "[ ok ]"
+	fi
+	echo -n " - csum  "
+	count=`ip netns exec $ns2 nstat -as | grep MPTcpExtDataCsumErr | awk '{print $2}'`
+	[ -z "$count" ] && count=0
+	if [ "$count" != 0 ]; then
+		echo "[fail] got $count data checksum error[s] expected 0"
+		ret=1
+		dump_stats=1
+	else
+		echo "[ ok ]"
+	fi
+	if [ "${dump_stats}" = 1 ]; then
+		echo Server ns stats
+		ip netns exec $ns1 nstat -as | grep MPTcp
+		echo Client ns stats
+		ip netns exec $ns2 nstat -as | grep MPTcp
+	fi
+}
+
 chk_join_nr()
 {
 	local msg="$1"
@@ -523,6 +588,9 @@ chk_join_nr()
 		echo Client ns stats
 		ip netns exec $ns2 nstat -as | grep MPTcp
 	fi
+	if [ $checksum -eq 1 ]; then
+		chk_csum_nr
+	fi
 }
 
 chk_add_nr()
@@ -1374,6 +1442,94 @@ syncookies_tests()
 	chk_add_nr 1 1
 }
 
+checksum_tests()
+{
+	# checksum test 0 0
+	reset_with_checksum 0 0
+	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_csum_nr "checksum test 0 0"
+
+	# checksum test 1 1
+	reset_with_checksum 1 1
+	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_csum_nr "checksum test 1 1"
+
+	# checksum test 0 1
+	reset_with_checksum 0 1
+	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_csum_nr "checksum test 0 1"
+
+	# checksum test 1 0
+	reset_with_checksum 1 0
+	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_csum_nr "checksum test 1 0"
+}
+
+deny_join_id0_tests()
+{
+	# subflow allow join id0 ns1
+	reset_with_allow_join_id0 1 0
+	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_join_nr "single subflow allow join id0 ns1" 1 1 1
+
+	# subflow allow join id0 ns2
+	reset_with_allow_join_id0 0 1
+	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_join_nr "single subflow allow join id0 ns2" 0 0 0
+
+	# signal address allow join id0 ns1
+	# ADD_ADDRs are not affected by allow_join_id0 value.
+	reset_with_allow_join_id0 1 0
+	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_join_nr "signal address allow join id0 ns1" 1 1 1
+	chk_add_nr 1 1
+
+	# signal address allow join id0 ns2
+	# ADD_ADDRs are not affected by allow_join_id0 value.
+	reset_with_allow_join_id0 0 1
+	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_join_nr "signal address allow join id0 ns2" 1 1 1
+	chk_add_nr 1 1
+
+	# subflow and address allow join id0 ns1
+	reset_with_allow_join_id0 1 0
+	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
+	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_join_nr "subflow and address allow join id0 1" 2 2 2
+
+	# subflow and address allow join id0 ns2
+	reset_with_allow_join_id0 0 1
+	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
+	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+	run_tests $ns1 $ns2 10.0.1.1
+	chk_join_nr "subflow and address allow join id0 2" 1 1 1
+}
+
 all_tests()
 {
 	subflows_tests
@@ -1387,6 +1543,8 @@ all_tests()
 	backup_tests
 	add_addr_ports_tests
 	syncookies_tests
+	checksum_tests
+	deny_join_id0_tests
 }
 
 usage()
@@ -1403,7 +1561,10 @@ usage()
 	echo "  -b backup_tests"
 	echo "  -p add_addr_ports_tests"
 	echo "  -k syncookies_tests"
+	echo "  -S checksum_tests"
+	echo "  -d deny_join_id0_tests"
 	echo "  -c capture pcap files"
+	echo "  -C enable data checksum"
 	echo "  -h help"
 }
 
@@ -1418,13 +1579,16 @@ make_file "$sin" "server" 1
 trap cleanup EXIT
 
 for arg in "$@"; do
-	# check for "capture" arg before launching tests
+	# check for "capture/checksum" args before launching tests
 	if [[ "${arg}" =~ ^"-"[0-9a-zA-Z]*"c"[0-9a-zA-Z]*$ ]]; then
 		capture=1
 	fi
+	if [[ "${arg}" =~ ^"-"[0-9a-zA-Z]*"C"[0-9a-zA-Z]*$ ]]; then
+		checksum=1
+	fi
 
-	# exception for the capture option, the rest means: a part of the tests
-	if [ "${arg}" != "-c" ]; then
+	# exception for the capture/checksum options, the rest means: a part of the tests
+	if [ "${arg}" != "-c" ] && [ "${arg}" != "-C" ]; then
 		do_all_tests=0
 	fi
 done
@@ -1434,7 +1598,7 @@ if [ $do_all_tests -eq 1 ]; then
 	exit $ret
 fi
 
-while getopts 'fsltra64bpkch' opt; do
+while getopts 'fsltra64bpkdchCS' opt; do
 	case $opt in
 		f)
 			subflows_tests
@@ -1469,8 +1633,16 @@ while getopts 'fsltra64bpkch' opt; do
 		k)
 			syncookies_tests
 			;;
+		S)
+			checksum_tests
+			;;
+		d)
+			deny_join_id0_tests
+			;;
 		c)
 			;;
+		C)
+			;;
 		h | *)
 			usage
 			;;
diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
index 2fa13946ac04..1579e471a5e7 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
@@ -178,7 +178,7 @@ do_transfer()
 
 	timeout ${timeout_test} \
 		ip netns exec ${listener_ns} \
-			$mptcp_connect -t ${timeout_poll} -l -M 1 -p $port -s ${srv_proto} \
+			$mptcp_connect -t ${timeout_poll} -l -M 1 -p $port -s ${srv_proto} -c TIMESTAMPNS \
 				${local_addr} < "$sin" > "$sout" &
 	spid=$!
 
@@ -186,7 +186,7 @@ do_transfer()
 
 	timeout ${timeout_test} \
 		ip netns exec ${connector_ns} \
-			$mptcp_connect -t ${timeout_poll} -M 2 -p $port -s ${cl_proto} \
+			$mptcp_connect -t ${timeout_poll} -M 2 -p $port -s ${cl_proto} -c TIMESTAMPNS \
 				$connect_addr < "$cin" > "$cout" &
 
 	cpid=$!
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
index 3aeef3bcb101..fd63ebfe9a2b 100755
--- a/tools/testing/selftests/net/mptcp/simult_flows.sh
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -60,6 +60,8 @@ setup()
 	for i in "$ns1" "$ns2" "$ns3";do
 		ip netns add $i || exit $ksft_skip
 		ip -net $i link set lo up
+		ip netns exec $i sysctl -q net.ipv4.conf.all.rp_filter=0
+		ip netns exec $i sysctl -q net.ipv4.conf.default.rp_filter=0
 	done
 
 	ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
@@ -80,7 +82,6 @@ setup()
 
 	ip netns exec "$ns1" ./pm_nl_ctl limits 1 1
 	ip netns exec "$ns1" ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags subflow
-	ip netns exec "$ns1" sysctl -q net.ipv4.conf.all.rp_filter=0
 
 	ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
 	ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
diff --git a/tools/testing/selftests/net/so_netns_cookie.c b/tools/testing/selftests/net/so_netns_cookie.c
new file mode 100644
index 000000000000..b39e87e967cd
--- /dev/null
+++ b/tools/testing/selftests/net/so_netns_cookie.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#ifndef SO_NETNS_COOKIE
+#define SO_NETNS_COOKIE 71
+#endif
+
+#define pr_err(fmt, ...) \
+	({ \
+		fprintf(stderr, "%s:%d:" fmt ": %m\n", \
+			__func__, __LINE__, ##__VA_ARGS__); \
+		1; \
+	})
+
+int main(int argc, char *argvp[])
+{
+	uint64_t cookie1, cookie2;
+	socklen_t vallen;
+	int sock1, sock2;
+
+	sock1 = socket(AF_INET, SOCK_STREAM, 0);
+	if (sock1 < 0)
+		return pr_err("Unable to create TCP socket");
+
+	vallen = sizeof(cookie1);
+	if (getsockopt(sock1, SOL_SOCKET, SO_NETNS_COOKIE, &cookie1, &vallen) != 0)
+		return pr_err("getsockopt(SOL_SOCKET, SO_NETNS_COOKIE)");
+
+	if (!cookie1)
+		return pr_err("SO_NETNS_COOKIE returned zero cookie");
+
+	if (unshare(CLONE_NEWNET))
+		return pr_err("unshare");
+
+	sock2 = socket(AF_INET, SOCK_STREAM, 0);
+	if (sock2 < 0)
+		return pr_err("Unable to create TCP socket");
+
+	vallen = sizeof(cookie2);
+	if (getsockopt(sock2, SOL_SOCKET, SO_NETNS_COOKIE, &cookie2, &vallen) != 0)
+		return pr_err("getsockopt(SOL_SOCKET, SO_NETNS_COOKIE)");
+
+	if (!cookie2)
+		return pr_err("SO_NETNS_COOKIE returned zero cookie");
+
+	if (cookie1 == cookie2)
+		return pr_err("SO_NETNS_COOKIE returned identical cookies for distinct ns");
+
+	close(sock1);
+	close(sock2);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh
new file mode 100755
index 000000000000..75ada17ac061
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh
@@ -0,0 +1,573 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+# author: Paolo Lungaroni <paolo.lungaroni@uniroma2.it>
+
+# This test is designed for evaluating the new SRv6 End.DT46 Behavior used for
+# implementing IPv4/IPv6 L3 VPN use cases.
+#
+# The current SRv6 code in the Linux kernel only implements SRv6 End.DT4 and
+# End.DT6 Behaviors which can be used respectively to support IPv4-in-IPv6 and
+# IPv6-in-IPv6 VPNs. With End.DT4 and End.DT6 it is not possible to create a
+# single SRv6 VPN tunnel to carry both IPv4 and IPv6 traffic.
+# The SRv6 End.DT46 Behavior implementation is meant to support the
+# decapsulation of IPv4 and IPv6 traffic coming from a single SRv6 tunnel.
+# Therefore, the SRv6 End.DT46 Behavior in the Linux kernel greatly simplifies
+# the setup and operations of SRv6 VPNs.
+#
+# Hereafter a network diagram is shown, where two different tenants (named 100
+# and 200) offer IPv4/IPv6 L3 VPN services allowing hosts to communicate with
+# each other across an IPv6 network.
+#
+# Only hosts belonging to the same tenant (and to the same VPN) can communicate
+# with each other. Instead, the communication among hosts of different tenants
+# is forbidden.
+# In other words, hosts hs-t100-1 and hs-t100-2 are connected through the
+# IPv4/IPv6 L3 VPN of tenant 100 while hs-t200-3 and hs-t200-4 are connected
+# using the IPv4/IPv6 L3 VPN of tenant 200. Cross connection between tenant 100
+# and tenant 200 is forbidden and thus, for example, hs-t100-1 cannot reach
+# hs-t200-3 and vice versa.
+#
+# Routers rt-1 and rt-2 implement IPv4/IPv6 L3 VPN services leveraging the SRv6
+# architecture. The key components for such VPNs are: a) SRv6 Encap behavior,
+# b) SRv6 End.DT46 Behavior and c) VRF.
+#
+# To explain how an IPv4/IPv6 L3 VPN based on SRv6 works, let us briefly
+# consider an example where, within the same domain of tenant 100, the host
+# hs-t100-1 pings the host hs-t100-2.
+#
+# First of all, L2 reachability of the host hs-t100-2 is taken into account by
+# the router rt-1 which acts as a arp/ndp proxy.
+#
+# When the host hs-t100-1 sends an IPv6 or IPv4 packet destined to hs-t100-2,
+# the router rt-1 receives the packet on the internal veth-t100 interface. Such
+# interface is enslaved to the VRF vrf-100 whose associated table contains the
+# SRv6 Encap route for encapsulating any IPv6 or IPv4 packet in a IPv6 plus the
+# Segment Routing Header (SRH) packet. This packet is sent through the (IPv6)
+# core network up to the router rt-2 that receives it on veth0 interface.
+#
+# The rt-2 router uses the 'localsid' routing table to process incoming
+# IPv6+SRH packets which belong to the VPN of the tenant 100. For each of these
+# packets, the SRv6 End.DT46 Behavior removes the outer IPv6+SRH headers and
+# performs the lookup on the vrf-100 table using the destination address of
+# the decapsulated IPv6 or IPv4 packet. Afterwards, the packet is sent to the
+# host hs-t100-2 through the veth-t100 interface.
+#
+# The ping response follows the same processing but this time the roles of rt-1
+# and rt-2 are swapped.
+#
+# Of course, the IPv4/IPv6 L3 VPN for tenant 200 works exactly as the IPv4/IPv6
+# L3 VPN for tenant 100. In this case, only hosts hs-t200-3 and hs-t200-4 are
+# able to connect with each other.
+#
+#
+# +-------------------+                                   +-------------------+
+# |                   |                                   |                   |
+# |  hs-t100-1 netns  |                                   |  hs-t100-2 netns  |
+# |                   |                                   |                   |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  |  cafe::1/64 |  |                                   |  |  cafe::2/64 |  |
+# |  | 10.0.0.1/24 |  |                                   |  | 10.0.0.2/24 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |        .          |                                   |         .         |
+# +-------------------+                                   +-------------------+
+#          .                                                        .
+#          .                                                        .
+#          .                                                        .
+# +-----------------------------------+   +-----------------------------------+
+# |        .                          |   |                         .         |
+# | +---------------+                 |   |                 +---------------- |
+# | |   veth-t100   |                 |   |                 |   veth-t100   | |
+# | |  cafe::254/64 |                 |   |                 |  cafe::254/64 | |
+# | | 10.0.0.254/24 |    +----------+ |   | +----------+    | 10.0.0.254/24 | |
+# | +-------+-------+    | localsid | |   | | localsid |    +-------+-------- |
+# |         |            |   table  | |   | |   table  |            |         |
+# |    +----+----+       +----------+ |   | +----------+       +----+----+    |
+# |    | vrf-100 |                    |   |                    | vrf-100 |    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |                    |   veth0    | |   | |   veth0    |                    |
+# |                    | fd00::1/64 |.|...|.| fd00::2/64 |                    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |    | vrf-200 |                    |   |                    | vrf-200 |    |
+# |    +----+----+                    |   |                    +----+----+    |
+# |         |                         |   |                         |         |
+# | +-------+-------+                 |   |                 +-------+-------- |
+# | |   veth-t200   |                 |   |                 |   veth-t200   | |
+# | |  cafe::254/64 |                 |   |                 |  cafe::254/64 | |
+# | | 10.0.0.254/24 |                 |   |                 | 10.0.0.254/24 | |
+# | +---------------+      rt-1 netns |   | rt-2 netns      +---------------- |
+# |        .                          |   |                          .        |
+# +-----------------------------------+   +-----------------------------------+
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+# +-------------------+                                   +-------------------+
+# |        .          |                                   |          .        |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  |  cafe::3/64 |  |                                   |  |  cafe::4/64 |  |
+# |  | 10.0.0.3/24 |  |                                   |  | 10.0.0.4/24 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |                   |                                   |                   |
+# |  hs-t200-3 netns  |                                   |  hs-t200-4 netns  |
+# |                   |                                   |                   |
+# +-------------------+                                   +-------------------+
+#
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+# | Network configuration |
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+# rt-1: localsid table (table 90)
+# +--------------------------------------------------+
+# |SID              |Action                          |
+# +--------------------------------------------------+
+# |fc00:21:100::6046|apply SRv6 End.DT46 vrftable 100|
+# +--------------------------------------------------+
+# |fc00:21:200::6046|apply SRv6 End.DT46 vrftable 200|
+# +--------------------------------------------------+
+#
+# rt-1: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::2    |apply seg6 encap segs fc00:12:100::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t100               |
+# +---------------------------------------------------+
+# |10.0.0.2   |apply seg6 encap segs fc00:12:100::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t100               |
+# +---------------------------------------------------+
+#
+# rt-1: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::4    |apply seg6 encap segs fc00:12:200::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t200               |
+# +---------------------------------------------------+
+# |10.0.0.4   |apply seg6 encap segs fc00:12:200::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t200               |
+# +---------------------------------------------------+
+#
+#
+# rt-2: localsid table (table 90)
+# +--------------------------------------------------+
+# |SID              |Action                          |
+# +--------------------------------------------------+
+# |fc00:12:100::6046|apply SRv6 End.DT46 vrftable 100|
+# +--------------------------------------------------+
+# |fc00:12:200::6046|apply SRv6 End.DT46 vrftable 200|
+# +--------------------------------------------------+
+#
+# rt-2: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::1    |apply seg6 encap segs fc00:21:100::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t100               |
+# +---------------------------------------------------+
+# |10.0.0.1   |apply seg6 encap segs fc00:21:100::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t100               |
+# +---------------------------------------------------+
+#
+# rt-2: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::3    |apply seg6 encap segs fc00:21:200::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t200               |
+# +---------------------------------------------------+
+# |10.0.0.3   |apply seg6 encap segs fc00:21:200::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t200               |
+# +---------------------------------------------------+
+#
+
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fd00
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fc00
+PING_TIMEOUT_SEC=4
+
+ret=0
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+cleanup()
+{
+	ip link del veth-rt-1 2>/dev/null || true
+	ip link del veth-rt-2 2>/dev/null || true
+
+	# destroy routers rt-* and hosts hs-*
+	for ns in $(ip netns show | grep -E 'rt-*|hs-*'); do
+		ip netns del ${ns} || true
+	done
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt=$1
+	local nsname=rt-${rt}
+
+	ip netns add ${nsname}
+	ip link set veth-rt-${rt} netns ${nsname}
+	ip -netns ${nsname} link set veth-rt-${rt} name veth0
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns ${nsname} addr add ${IPv6_RT_NETWORK}::${rt}/64 dev veth0 nodad
+	ip -netns ${nsname} link set veth0 up
+	ip -netns ${nsname} link set lo up
+
+	ip netns exec ${nsname} sysctl -wq net.ipv4.ip_forward=1
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.forwarding=1
+}
+
+setup_hs()
+{
+	local hs=$1
+	local rt=$2
+	local tid=$3
+	local hsname=hs-t${tid}-${hs}
+	local rtname=rt-${rt}
+	local rtveth=veth-t${tid}
+
+	# set the networking for the host
+	ip netns add ${hsname}
+
+	ip netns exec ${hsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${hsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns ${hsname} link add veth0 type veth peer name ${rtveth}
+	ip -netns ${hsname} link set ${rtveth} netns ${rtname}
+	ip -netns ${hsname} addr add ${IPv6_HS_NETWORK}::${hs}/64 dev veth0 nodad
+	ip -netns ${hsname} addr add ${IPv4_HS_NETWORK}.${hs}/24 dev veth0
+	ip -netns ${hsname} link set veth0 up
+	ip -netns ${hsname} link set lo up
+
+	# configure the VRF for the tenant X on the router which is directly
+	# connected to the source host.
+	ip -netns ${rtname} link add vrf-${tid} type vrf table ${tid}
+	ip -netns ${rtname} link set vrf-${tid} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	# enslave the veth-tX interface to the vrf-X in the access router
+	ip -netns ${rtname} link set ${rtveth} master vrf-${tid}
+	ip -netns ${rtname} addr add ${IPv6_HS_NETWORK}::254/64 dev ${rtveth} nodad
+	ip -netns ${rtname} addr add ${IPv4_HS_NETWORK}.254/24 dev ${rtveth}
+	ip -netns ${rtname} link set ${rtveth} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.${rtveth}.proxy_ndp=1
+	ip netns exec ${rtname} sysctl -wq net.ipv4.conf.${rtveth}.proxy_arp=1
+
+	# disable the rp_filter otherwise the kernel gets confused about how
+	# to route decap ipv4 packets.
+	ip netns exec ${rtname} sysctl -wq net.ipv4.conf.all.rp_filter=0
+	ip netns exec ${rtname} sysctl -wq net.ipv4.conf.${rtveth}.rp_filter=0
+
+	ip netns exec ${rtname} sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup_vpn_config()
+{
+	local hssrc=$1
+	local rtsrc=$2
+	local hsdst=$3
+	local rtdst=$4
+	local tid=$5
+
+	local hssrc_name=hs-t${tid}-${hssrc}
+	local hsdst_name=hs-t${tid}-${hsdst}
+	local rtsrc_name=rt-${rtsrc}
+	local rtdst_name=rt-${rtdst}
+	local rtveth=veth-t${tid}
+	local vpn_sid=${VPN_LOCATOR_SERVICE}:${hssrc}${hsdst}:${tid}::6046
+
+	ip -netns ${rtsrc_name} -6 neigh add proxy ${IPv6_HS_NETWORK}::${hsdst} dev ${rtveth}
+
+	# set the encap route for encapsulating packets which arrive from the
+	# host hssrc and destined to the access router rtsrc.
+	ip -netns ${rtsrc_name} -6 route add ${IPv6_HS_NETWORK}::${hsdst}/128 vrf vrf-${tid} \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -4 route add ${IPv4_HS_NETWORK}.${hsdst}/32 vrf vrf-${tid} \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -6 route add ${vpn_sid}/128 vrf vrf-${tid} \
+		via fd00::${rtdst} dev veth0
+
+	# set the decap route for decapsulating packets which arrive from
+	# the rtdst router and destined to the hsdst host.
+	ip -netns ${rtdst_name} -6 route add ${vpn_sid}/128 table ${LOCALSID_TABLE_ID} \
+		encap seg6local action End.DT46 vrftable ${tid} dev vrf-${tid}
+
+	# all sids for VPNs start with a common locator which is fc00::/16.
+	# Routes for handling the SRv6 End.DT46 behavior instances are grouped
+	# together in the 'localsid' table.
+	#
+	# NOTE: added only once
+	if [ -z "$(ip -netns ${rtdst_name} -6 rule show | \
+	    grep "to ${VPN_LOCATOR_SERVICE}::/16 lookup ${LOCALSID_TABLE_ID}")" ]; then
+		ip -netns ${rtdst_name} -6 rule add \
+			to ${VPN_LOCATOR_SERVICE}::/16 \
+			lookup ${LOCALSID_TABLE_ID} prio 999
+	fi
+
+	# set default routes to unreachable for both ipv4 and ipv6
+	ip -netns ${rtsrc_name} -6 route add unreachable default metric 4278198272 \
+		vrf vrf-${tid}
+
+	ip -netns ${rtsrc_name} -4 route add unreachable default metric 4278198272 \
+		vrf vrf-${tid}
+}
+
+setup()
+{
+	ip link add veth-rt-1 type veth peer name veth-rt-2
+	# setup the networking for router rt-1 and router rt-2
+	setup_rt_networking 1
+	setup_rt_networking 2
+
+	# setup two hosts for the tenant 100.
+	#  - host hs-1 is directly connected to the router rt-1;
+	#  - host hs-2 is directly connected to the router rt-2.
+	setup_hs 1 1 100  #args: host router tenant
+	setup_hs 2 2 100
+
+	# setup two hosts for the tenant 200
+	#  - host hs-3 is directly connected to the router rt-1;
+	#  - host hs-4 is directly connected to the router rt-2.
+	setup_hs 3 1 200
+	setup_hs 4 2 200
+
+	# setup the IPv4/IPv6 L3 VPN which connects the host hs-t100-1 and host
+	# hs-t100-2 within the same tenant 100.
+	setup_vpn_config 1 1 2 2 100  #args: src_host src_router dst_host dst_router tenant
+	setup_vpn_config 2 2 1 1 100
+
+	# setup the IPv4/IPv6 L3 VPN which connects the host hs-t200-3 and host
+	# hs-t200-4 within the same tenant 200.
+	setup_vpn_config 3 1 4 2 200
+	setup_vpn_config 4 2 3 1 200
+}
+
+check_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+
+	ip netns exec rt-${rtsrc} ping -c 1 -W 1 ${IPv6_RT_NETWORK}::${rtdst} \
+		>/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+
+	check_rt_connectivity ${rtsrc} ${rtdst}
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	ip netns exec hs-t${tid}-${hssrc} ping -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv6_HS_NETWORK}::${hsdst} >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	ip netns exec hs-t${tid}-${hssrc} ping -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv4_HS_NETWORK}.${hsdst} >/dev/null 2>&1
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	check_hs_ipv6_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "IPv6 Hosts connectivity: hs-t${tid}-${hssrc} -> hs-t${tid}-${hsdst} (tenant ${tid})"
+
+	check_hs_ipv4_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "IPv4 Hosts connectivity: hs-t${tid}-${hssrc} -> hs-t${tid}-${hsdst} (tenant ${tid})"
+
+}
+
+check_and_log_hs_isolation()
+{
+	local hssrc=$1
+	local tidsrc=$2
+	local hsdst=$3
+	local tiddst=$4
+
+	check_hs_ipv6_connectivity ${hssrc} ${hsdst} ${tidsrc}
+	# NOTE: ping should fail
+	log_test $? 1 "IPv6 Hosts isolation: hs-t${tidsrc}-${hssrc} -X-> hs-t${tiddst}-${hsdst}"
+
+	check_hs_ipv4_connectivity ${hssrc} ${hsdst} ${tidsrc}
+	# NOTE: ping should fail
+	log_test $? 1 "IPv4 Hosts isolation: hs-t${tidsrc}-${hssrc} -X-> hs-t${tiddst}-${hsdst}"
+
+}
+
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc=$1
+	local tid=$2
+
+	check_hs_ipv6_connectivity ${hssrc} 254 ${tid}
+	log_test $? 0 "IPv6 Hosts connectivity: hs-t${tid}-${hssrc} -> gw (tenant ${tid})"
+
+	check_hs_ipv4_connectivity ${hssrc} 254 ${tid}
+	log_test $? 0 "IPv4 Hosts connectivity: hs-t${tid}-${hssrc} -> gw (tenant ${tid})"
+
+}
+
+router_tests()
+{
+	log_section "IPv6 routers connectivity test"
+
+	check_and_log_rt_connectivity 1 2
+	check_and_log_rt_connectivity 2 1
+}
+
+host2gateway_tests()
+{
+	log_section "IPv4/IPv6 connectivity test among hosts and gateway"
+
+	check_and_log_hs2gw_connectivity 1 100
+	check_and_log_hs2gw_connectivity 2 100
+
+	check_and_log_hs2gw_connectivity 3 200
+	check_and_log_hs2gw_connectivity 4 200
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test among hosts in the same tenant"
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+
+	check_and_log_hs_connectivity 3 4 200
+	check_and_log_hs_connectivity 4 3 200
+}
+
+host_vpn_isolation_tests()
+{
+	local i
+	local j
+	local k
+	local tmp
+	local l1="1 2"
+	local l2="3 4"
+	local t1=100
+	local t2=200
+
+	log_section "SRv6 VPN isolation test among hosts in different tentants"
+
+	for k in 0 1; do
+		for i in ${l1}; do
+			for j in ${l2}; do
+				check_and_log_hs_isolation ${i} ${t1} ${j} ${t2}
+			done
+		done
+
+		# let us test the reverse path
+		tmp="${l1}"; l1="${l2}"; l2="${tmp}"
+		tmp=${t1}; t1=${t2}; t2=${tmp}
+	done
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit 0
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit 0
+fi
+
+modprobe vrf &>/dev/null
+if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+        echo "SKIP: vrf sysctl does not exist"
+        exit 0
+fi
+
+cleanup &>/dev/null
+
+setup
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+host_vpn_isolation_tests
+
+print_log_test_results
+
+cleanup &>/dev/null
+
+exit ${ret}
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 426d07875a48..112d41d01b12 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -25,6 +25,47 @@
 #define TLS_PAYLOAD_MAX_LEN 16384
 #define SOL_TLS 282
 
+struct tls_crypto_info_keys {
+	union {
+		struct tls12_crypto_info_aes_gcm_128 aes128;
+		struct tls12_crypto_info_chacha20_poly1305 chacha20;
+	};
+	size_t len;
+};
+
+static void tls_crypto_info_init(uint16_t tls_version, uint16_t cipher_type,
+				 struct tls_crypto_info_keys *tls12)
+{
+	memset(tls12, 0, sizeof(*tls12));
+
+	switch (cipher_type) {
+	case TLS_CIPHER_CHACHA20_POLY1305:
+		tls12->len = sizeof(struct tls12_crypto_info_chacha20_poly1305);
+		tls12->chacha20.info.version = tls_version;
+		tls12->chacha20.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_AES_GCM_128:
+		tls12->len = sizeof(struct tls12_crypto_info_aes_gcm_128);
+		tls12->aes128.info.version = tls_version;
+		tls12->aes128.info.cipher_type = cipher_type;
+		break;
+	default:
+		break;
+	}
+}
+
+static void memrnd(void *s, size_t n)
+{
+	int *dword = s;
+	char *byte;
+
+	for (; n >= 4; n -= 4)
+		*dword++ = rand();
+	byte = (void *)dword;
+	while (n--)
+		*byte++ = rand();
+}
+
 FIXTURE(tls_basic)
 {
 	int fd, cfd;
@@ -133,33 +174,16 @@ FIXTURE_VARIANT_ADD(tls, 13_chacha)
 
 FIXTURE_SETUP(tls)
 {
-	union {
-		struct tls12_crypto_info_aes_gcm_128 aes128;
-		struct tls12_crypto_info_chacha20_poly1305 chacha20;
-	} tls12;
+	struct tls_crypto_info_keys tls12;
 	struct sockaddr_in addr;
 	socklen_t len;
 	int sfd, ret;
-	size_t tls12_sz;
 
 	self->notls = false;
 	len = sizeof(addr);
 
-	memset(&tls12, 0, sizeof(tls12));
-	switch (variant->cipher_type) {
-	case TLS_CIPHER_CHACHA20_POLY1305:
-		tls12_sz = sizeof(struct tls12_crypto_info_chacha20_poly1305);
-		tls12.chacha20.info.version = variant->tls_version;
-		tls12.chacha20.info.cipher_type = variant->cipher_type;
-		break;
-	case TLS_CIPHER_AES_GCM_128:
-		tls12_sz = sizeof(struct tls12_crypto_info_aes_gcm_128);
-		tls12.aes128.info.version = variant->tls_version;
-		tls12.aes128.info.cipher_type = variant->cipher_type;
-		break;
-	default:
-		tls12_sz = 0;
-	}
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type,
+			     &tls12);
 
 	addr.sin_family = AF_INET;
 	addr.sin_addr.s_addr = htonl(INADDR_ANY);
@@ -187,7 +211,7 @@ FIXTURE_SETUP(tls)
 
 	if (!self->notls) {
 		ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12,
-				 tls12_sz);
+				 tls12.len);
 		ASSERT_EQ(ret, 0);
 	}
 
@@ -200,7 +224,7 @@ FIXTURE_SETUP(tls)
 		ASSERT_EQ(ret, 0);
 
 		ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12,
-				 tls12_sz);
+				 tls12.len);
 		ASSERT_EQ(ret, 0);
 	}
 
@@ -308,6 +332,8 @@ TEST_F(tls, recv_max)
 	char recv_mem[TLS_PAYLOAD_MAX_LEN];
 	char buf[TLS_PAYLOAD_MAX_LEN];
 
+	memrnd(buf, sizeof(buf));
+
 	EXPECT_GE(send(self->fd, buf, send_len, 0), 0);
 	EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1);
 	EXPECT_EQ(memcmp(buf, recv_mem, send_len), 0);
@@ -588,6 +614,8 @@ TEST_F(tls, recvmsg_single_max)
 	struct iovec vec;
 	struct msghdr hdr;
 
+	memrnd(send_mem, sizeof(send_mem));
+
 	EXPECT_EQ(send(self->fd, send_mem, send_len, 0), send_len);
 	vec.iov_base = (char *)recv_mem;
 	vec.iov_len = TLS_PAYLOAD_MAX_LEN;
@@ -610,6 +638,8 @@ TEST_F(tls, recvmsg_multiple)
 	struct msghdr hdr;
 	int i;
 
+	memrnd(buf, sizeof(buf));
+
 	EXPECT_EQ(send(self->fd, buf, send_len, 0), send_len);
 	for (i = 0; i < msg_iovlen; i++) {
 		iov_base[i] = (char *)malloc(iov_len);
@@ -634,6 +664,8 @@ TEST_F(tls, single_send_multiple_recv)
 	char send_mem[TLS_PAYLOAD_MAX_LEN * 2];
 	char recv_mem[TLS_PAYLOAD_MAX_LEN * 2];
 
+	memrnd(send_mem, sizeof(send_mem));
+
 	EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
 	memset(recv_mem, 0, total_len);
 
@@ -834,18 +866,17 @@ TEST_F(tls, bidir)
 	int ret;
 
 	if (!self->notls) {
-		struct tls12_crypto_info_aes_gcm_128 tls12;
+		struct tls_crypto_info_keys tls12;
 
-		memset(&tls12, 0, sizeof(tls12));
-		tls12.info.version = variant->tls_version;
-		tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+		tls_crypto_info_init(variant->tls_version, variant->cipher_type,
+				     &tls12);
 
 		ret = setsockopt(self->fd, SOL_TLS, TLS_RX, &tls12,
-				 sizeof(tls12));
+				 tls12.len);
 		ASSERT_EQ(ret, 0);
 
 		ret = setsockopt(self->cfd, SOL_TLS, TLS_TX, &tls12,
-				 sizeof(tls12));
+				 tls12.len);
 		ASSERT_EQ(ret, 0);
 	}
 
diff --git a/tools/testing/selftests/net/unicast_extensions.sh b/tools/testing/selftests/net/unicast_extensions.sh
index dbf0421986df..66354cdd5ce4 100755
--- a/tools/testing/selftests/net/unicast_extensions.sh
+++ b/tools/testing/selftests/net/unicast_extensions.sh
@@ -189,6 +189,15 @@ segmenttest 255.255.255.1 255.255.255.254 24 "assign and ping inside 255.255.255
 route_test 240.5.6.7 240.5.6.1  255.1.2.1    255.1.2.3      24 "route between 240.5.6/24 and 255.1.2/24 (is allowed)"
 route_test 0.200.6.7 0.200.38.1 245.99.101.1 245.99.200.111 16 "route between 0.200/16 and 245.99/16 (is allowed)"
 #
+# Test support for lowest address ending in .0
+segmenttest 5.10.15.20 5.10.15.0 24 "assign and ping lowest address (/24)"
+#
+# Test support for lowest address not ending in .0
+segmenttest 192.168.101.192 192.168.101.193 26 "assign and ping lowest address (/26)"
+#
+# Routing using lowest address as a gateway/endpoint
+route_test 192.168.42.1 192.168.42.0 9.8.7.6 9.8.7.0 24 "routing using lowest address"
+#
 # ==============================================
 # ==== TESTS THAT CURRENTLY EXPECT FAILURE =====
 # ==============================================
@@ -202,14 +211,6 @@ segmenttest 255.255.255.1 255.255.255.255 16 "assigning 255.255.255.255 (is forb
 # Currently Linux does not allow this, so this should fail too
 segmenttest 127.99.4.5 127.99.4.6 16 "assign and ping inside 127/8 (is forbidden)"
 #
-# Test support for lowest address
-# Currently Linux does not allow this, so this should fail too
-segmenttest 5.10.15.20 5.10.15.0 24 "assign and ping lowest address (is forbidden)"
-#
-# Routing using lowest address as a gateway/endpoint
-# Currently Linux does not allow this, so this should fail too
-route_test 192.168.42.1 192.168.42.0 9.8.7.6 9.8.7.0 24 "routing using lowest address (is forbidden)"
-#
 # Test support for unicast use of class D
 # Currently Linux does not allow this, so this should fail too
 segmenttest 225.1.2.3 225.1.2.200 24 "assign and ping class D address (is forbidden)"
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
index 229ee185b27e..254136e3da5a 100644
--- a/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
+++ b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
@@ -29,22 +29,26 @@ class SubPlugin(TdcPlugin):
             return
 
         # Check for required fields
-        scapyinfo = self.args.caseinfo['scapy']
-        scapy_keys = ['iface', 'count', 'packet']
-        missing_keys = []
-        keyfail = False
-        for k in scapy_keys:
-            if k not in scapyinfo:
-                keyfail = True
-                missing_keys.add(k)
-        if keyfail:
-            print('{}: Scapy block present in the test, but is missing info:'
-                .format(self.sub_class))
-            print('{}'.format(missing_keys))
-
-        pkt = eval(scapyinfo['packet'])
-        if '$' in scapyinfo['iface']:
-            tpl = Template(scapyinfo['iface'])
-            scapyinfo['iface'] = tpl.safe_substitute(NAMES)
-        for count in range(scapyinfo['count']):
-            sendp(pkt, iface=scapyinfo['iface'])
+        lscapyinfo = self.args.caseinfo['scapy']
+        if type(lscapyinfo) != list:
+            lscapyinfo = [ lscapyinfo, ]
+
+        for scapyinfo in lscapyinfo:
+            scapy_keys = ['iface', 'count', 'packet']
+            missing_keys = []
+            keyfail = False
+            for k in scapy_keys:
+                if k not in scapyinfo:
+                    keyfail = True
+                    missing_keys.append(k)
+            if keyfail:
+                print('{}: Scapy block present in the test, but is missing info:'
+                    .format(self.sub_class))
+                print('{}'.format(missing_keys))
+
+            pkt = eval(scapyinfo['packet'])
+            if '$' in scapyinfo['iface']:
+                tpl = Template(scapyinfo['iface'])
+                scapyinfo['iface'] = tpl.safe_substitute(NAMES)
+            for count in range(scapyinfo['count']):
+                sendp(pkt, iface=scapyinfo['iface'])
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/ct.json b/tools/testing/selftests/tc-testing/tc-tests/actions/ct.json
index 4202e95e27b9..bd843ab00a58 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/actions/ct.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/ct.json
@@ -406,5 +406,50 @@
         "teardown": [
             "$TC actions flush action ct"
         ]
+    },
+    {
+        "id": "3992",
+        "name": "Add ct action triggering DNAT tuple conflict",
+        "category": [
+            "actions",
+            "ct",
+	    "scapy"
+        ],
+	"plugins": {
+		"requires": [
+			"nsPlugin",
+			"scapyPlugin"
+		]
+	},
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+		2,
+                255
+            ],
+	    "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 ingress protocol ip prio 1 flower ct_state -trk action ct commit nat dst addr 20.0.0.1 port 10 pipe action drop",
+	"scapy": [
+	    {
+		"iface": "$DEV0",
+		"count": 1,
+		"packet": "Ether(type=0x800)/IP(src='10.0.0.10',dst='10.0.0.10')/TCP(sport=5000,dport=10)"
+	    },
+	    {
+		"iface": "$DEV0",
+		"count": 1,
+		"packet": "Ether(type=0x800)/IP(src='10.0.0.10',dst='10.0.0.20')/TCP(sport=5000,dport=10)"
+	    }
+	],
+        "expExitCode": "0",
+        "verifyCmd": "cat /proc/net/nf_conntrack",
+        "matchPattern": "dst=10.0.0.20",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
     }
 ]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json b/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json
index 41d783254b08..2aad4caa8581 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json
@@ -446,6 +446,30 @@
         "teardown": []
     },
     {
+        "id": "ba5b",
+        "name": "Add vlan modify action for protocol 802.1Q setting priority 0",
+        "category": [
+            "actions",
+            "vlan"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action vlan",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action vlan modify protocol 802.1Q id 5 priority 0 index 100",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action vlan index 100",
+        "matchPattern": "action order [0-9]+: vlan.*modify id 100 priority 0 protocol 802.1Q pipe.*index 100 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action vlan"
+        ]
+    },
+    {
         "id": "6812",
         "name": "Add vlan modify action for protocol 802.1Q",
         "category": [
@@ -463,7 +487,7 @@
         "cmdUnderTest": "$TC actions add action vlan modify protocol 802.1Q id 5 index 100",
         "expExitCode": "0",
         "verifyCmd": "$TC actions get action vlan index 100",
-        "matchPattern": "action order [0-9]+: vlan.*modify id 100 protocol 802.1Q priority 0 pipe.*index 100 ref",
+        "matchPattern": "action order [0-9]+: vlan.*modify id 100 protocol 802.1Q pipe.*index 100 ref",
         "matchCount": "0",
         "teardown": [
             "$TC actions flush action vlan"
@@ -487,7 +511,7 @@
         "cmdUnderTest": "$TC actions add action vlan modify protocol 802.1ad id 500 reclassify index 12",
         "expExitCode": "0",
         "verifyCmd": "$TC actions get action vlan index 12",
-        "matchPattern": "action order [0-9]+: vlan.*modify id 500 protocol 802.1ad priority 0 reclassify.*index 12 ref",
+        "matchPattern": "action order [0-9]+: vlan.*modify id 500 protocol 802.1ad reclassify.*index 12 ref",
         "matchCount": "1",
         "teardown": [
             "$TC actions flush action vlan"
diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c
index 93cbd6f603f9..2acbb7703c6a 100644
--- a/tools/testing/vsock/util.c
+++ b/tools/testing/vsock/util.c
@@ -84,7 +84,7 @@ void vsock_wait_remote_close(int fd)
 }
 
 /* Connect to <cid, port> and return the file descriptor. */
-int vsock_stream_connect(unsigned int cid, unsigned int port)
+static int vsock_connect(unsigned int cid, unsigned int port, int type)
 {
 	union {
 		struct sockaddr sa;
@@ -101,7 +101,7 @@ int vsock_stream_connect(unsigned int cid, unsigned int port)
 
 	control_expectln("LISTENING");
 
-	fd = socket(AF_VSOCK, SOCK_STREAM, 0);
+	fd = socket(AF_VSOCK, type, 0);
 
 	timeout_begin(TIMEOUT);
 	do {
@@ -120,11 +120,21 @@ int vsock_stream_connect(unsigned int cid, unsigned int port)
 	return fd;
 }
 
+int vsock_stream_connect(unsigned int cid, unsigned int port)
+{
+	return vsock_connect(cid, port, SOCK_STREAM);
+}
+
+int vsock_seqpacket_connect(unsigned int cid, unsigned int port)
+{
+	return vsock_connect(cid, port, SOCK_SEQPACKET);
+}
+
 /* Listen on <cid, port> and return the first incoming connection.  The remote
  * address is stored to clientaddrp.  clientaddrp may be NULL.
  */
-int vsock_stream_accept(unsigned int cid, unsigned int port,
-			struct sockaddr_vm *clientaddrp)
+static int vsock_accept(unsigned int cid, unsigned int port,
+			struct sockaddr_vm *clientaddrp, int type)
 {
 	union {
 		struct sockaddr sa;
@@ -145,7 +155,7 @@ int vsock_stream_accept(unsigned int cid, unsigned int port,
 	int client_fd;
 	int old_errno;
 
-	fd = socket(AF_VSOCK, SOCK_STREAM, 0);
+	fd = socket(AF_VSOCK, type, 0);
 
 	if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
 		perror("bind");
@@ -189,6 +199,18 @@ int vsock_stream_accept(unsigned int cid, unsigned int port,
 	return client_fd;
 }
 
+int vsock_stream_accept(unsigned int cid, unsigned int port,
+			struct sockaddr_vm *clientaddrp)
+{
+	return vsock_accept(cid, port, clientaddrp, SOCK_STREAM);
+}
+
+int vsock_seqpacket_accept(unsigned int cid, unsigned int port,
+			   struct sockaddr_vm *clientaddrp)
+{
+	return vsock_accept(cid, port, clientaddrp, SOCK_SEQPACKET);
+}
+
 /* Transmit one byte and check the return value.
  *
  * expected_ret:
diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h
index e53dd09d26d9..a3375ad2fb7f 100644
--- a/tools/testing/vsock/util.h
+++ b/tools/testing/vsock/util.h
@@ -36,8 +36,11 @@ struct test_case {
 void init_signals(void);
 unsigned int parse_cid(const char *str);
 int vsock_stream_connect(unsigned int cid, unsigned int port);
+int vsock_seqpacket_connect(unsigned int cid, unsigned int port);
 int vsock_stream_accept(unsigned int cid, unsigned int port,
 			struct sockaddr_vm *clientaddrp);
+int vsock_seqpacket_accept(unsigned int cid, unsigned int port,
+			   struct sockaddr_vm *clientaddrp);
 void vsock_wait_remote_close(int fd);
 void send_byte(int fd, int expected_ret, int flags);
 void recv_byte(int fd, int expected_ret, int flags);
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index 5a4fb80fa832..67766bfe176f 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -14,6 +14,8 @@
 #include <errno.h>
 #include <unistd.h>
 #include <linux/kernel.h>
+#include <sys/types.h>
+#include <sys/socket.h>
 
 #include "timeout.h"
 #include "control.h"
@@ -279,6 +281,110 @@ static void test_stream_msg_peek_server(const struct test_opts *opts)
 	close(fd);
 }
 
+#define MESSAGES_CNT 7
+static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
+{
+	int fd;
+
+	fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
+	if (fd < 0) {
+		perror("connect");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Send several messages, one with MSG_EOR flag */
+	for (int i = 0; i < MESSAGES_CNT; i++)
+		send_byte(fd, 1, 0);
+
+	control_writeln("SENDDONE");
+	close(fd);
+}
+
+static void test_seqpacket_msg_bounds_server(const struct test_opts *opts)
+{
+	int fd;
+	char buf[16];
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+
+	fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
+	if (fd < 0) {
+		perror("accept");
+		exit(EXIT_FAILURE);
+	}
+
+	control_expectln("SENDDONE");
+	iov.iov_base = buf;
+	iov.iov_len = sizeof(buf);
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	for (int i = 0; i < MESSAGES_CNT; i++) {
+		if (recvmsg(fd, &msg, 0) != 1) {
+			perror("message bound violated");
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	close(fd);
+}
+
+#define MESSAGE_TRUNC_SZ 32
+static void test_seqpacket_msg_trunc_client(const struct test_opts *opts)
+{
+	int fd;
+	char buf[MESSAGE_TRUNC_SZ];
+
+	fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
+	if (fd < 0) {
+		perror("connect");
+		exit(EXIT_FAILURE);
+	}
+
+	if (send(fd, buf, sizeof(buf), 0) != sizeof(buf)) {
+		perror("send failed");
+		exit(EXIT_FAILURE);
+	}
+
+	control_writeln("SENDDONE");
+	close(fd);
+}
+
+static void test_seqpacket_msg_trunc_server(const struct test_opts *opts)
+{
+	int fd;
+	char buf[MESSAGE_TRUNC_SZ / 2];
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+
+	fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
+	if (fd < 0) {
+		perror("accept");
+		exit(EXIT_FAILURE);
+	}
+
+	control_expectln("SENDDONE");
+	iov.iov_base = buf;
+	iov.iov_len = sizeof(buf);
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	ssize_t ret = recvmsg(fd, &msg, MSG_TRUNC);
+
+	if (ret != MESSAGE_TRUNC_SZ) {
+		printf("%zi\n", ret);
+		perror("MSG_TRUNC doesn't work");
+		exit(EXIT_FAILURE);
+	}
+
+	if (!(msg.msg_flags & MSG_TRUNC)) {
+		fprintf(stderr, "MSG_TRUNC expected\n");
+		exit(EXIT_FAILURE);
+	}
+
+	close(fd);
+}
+
 static struct test_case test_cases[] = {
 	{
 		.name = "SOCK_STREAM connection reset",
@@ -309,6 +415,16 @@ static struct test_case test_cases[] = {
 		.run_client = test_stream_msg_peek_client,
 		.run_server = test_stream_msg_peek_server,
 	},
+	{
+		.name = "SOCK_SEQPACKET msg bounds",
+		.run_client = test_seqpacket_msg_bounds_client,
+		.run_server = test_seqpacket_msg_bounds_server,
+	},
+	{
+		.name = "SOCK_SEQPACKET MSG_TRUNC flag",
+		.run_client = test_seqpacket_msg_trunc_client,
+		.run_server = test_seqpacket_msg_trunc_server,
+	},
 	{},
 };