[PATCH bpf-next 0/4] use network helpers, part 10

[PATCH bpf-next 0/4] use network helpers, part 10

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

This set is part 10 of series "use network helpers" all BPF selftests
wide.

Patches 1-3 drop local functions make_client(), make_socket() and
inetaddr_len() in sk_lookup.c. Patch 4 drops a useless function
__start_server() in network_helpers.c.

Geliang Tang (4):
  selftests/bpf: Drop make_client in sk_lookup
  selftests/bpf: Drop make_socket in sk_lookup
  selftests/bpf: Drop inetaddr_len in sk_lookup
  selftests/bpf: Drop __start_server in network_helpers

 tools/testing/selftests/bpf/network_helpers.c |  26 ++---
 .../selftests/bpf/prog_tests/sk_lookup.c      | 110 +++++-------------
 2 files changed, 40 insertions(+), 96 deletions(-)

-- 
2.43.0

[PATCH bpf-next 1/4] selftests/bpf: Drop make_client in sk_lookup

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

This patch uses the new helper connect_to_addr_str() in sk_lookup.c to
create the client socket and connect to the server, instead of using local
defined function make_client(). This local function can be dropped then.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 .../selftests/bpf/prog_tests/sk_lookup.c      | 34 ++++---------------
 1 file changed, 7 insertions(+), 27 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
index ae87c00867ba..9510a3f83787 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
@@ -229,27 +229,6 @@ static int make_server(int sotype, const char *ip, int port,
 	return -1;
 }
 
-static int make_client(int sotype, const char *ip, int port)
-{
-	struct sockaddr_storage addr = {0};
-	int err, fd;
-
-	fd = make_socket(sotype, ip, port, &addr);
-	if (fd < 0)
-		return -1;
-
-	err = connect(fd, (void *)&addr, inetaddr_len(&addr));
-	if (CHECK(err, "make_client", "connect")) {
-		log_err("failed to connect client socket");
-		goto fail;
-	}
-
-	return fd;
-fail:
-	close(fd);
-	return -1;
-}
-
 static __u64 socket_cookie(int fd)
 {
 	__u64 cookie;
@@ -646,8 +625,9 @@ static void run_lookup_prog(const struct test *t)
 			goto close;
 	}
 
-	client_fd = make_client(t->sotype, t->connect_to.ip, t->connect_to.port);
-	if (client_fd < 0)
+	client_fd = connect_to_addr_str(is_ipv6(t->connect_to.ip) ? AF_INET6 : AF_INET,
+					t->sotype, t->connect_to.ip, t->connect_to.port, NULL);
+	if (!ASSERT_OK_FD(client_fd, "connect_to_addr_str"))
 		goto close;
 
 	if (t->sotype == SOCK_STREAM)
@@ -1152,8 +1132,8 @@ static void run_sk_assign_connected(struct test_sk_lookup *skel,
 	if (server_fd < 0)
 		return;
 
-	connected_fd = make_client(sotype, EXT_IP4, EXT_PORT);
-	if (connected_fd < 0)
+	connected_fd = connect_to_addr_str(AF_INET, sotype, EXT_IP4, EXT_PORT, NULL);
+	if (!ASSERT_OK_FD(connected_fd, "connect_to_addr_str"))
 		goto out_close_server;
 
 	/* Put a connected socket in redirect map */
@@ -1166,8 +1146,8 @@ static void run_sk_assign_connected(struct test_sk_lookup *skel,
 		goto out_close_connected;
 
 	/* Try to redirect TCP SYN / UDP packet to a connected socket */
-	client_fd = make_client(sotype, EXT_IP4, EXT_PORT);
-	if (client_fd < 0)
+	client_fd = connect_to_addr_str(AF_INET, sotype, EXT_IP4, EXT_PORT, NULL);
+	if (!ASSERT_OK_FD(client_fd, "connect_to_addr_str"))
 		goto out_unlink_prog;
 	if (sotype == SOCK_DGRAM) {
 		send_byte(client_fd);
-- 
2.43.0

[PATCH bpf-next 2/4] selftests/bpf: Drop make_socket in sk_lookup

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

This patch uses the public network helers client_socket() + make_sockaddr()
in sk_lookup.c to create the client socket, set the timeout sockopts, and
make the connecting address. The local defined function make_socket()
can be dropped then.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 .../selftests/bpf/prog_tests/sk_lookup.c      | 61 ++++++-------------
 1 file changed, 17 insertions(+), 44 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
index 9510a3f83787..88f2f9efeea5 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
@@ -47,8 +47,6 @@
 #define INT_IP6		"fd00::2"
 #define INT_PORT	8008
 
-#define IO_TIMEOUT_SEC	3
-
 enum server {
 	SERVER_A = 0,
 	SERVER_B = 1,
@@ -114,40 +112,6 @@ static socklen_t inetaddr_len(const struct sockaddr_storage *addr)
 		addr->ss_family == AF_INET6 ? sizeof(struct sockaddr_in6) : 0);
 }
 
-static int make_socket(int sotype, const char *ip, int port,
-		       struct sockaddr_storage *addr)
-{
-	struct timeval timeo = { .tv_sec = IO_TIMEOUT_SEC };
-	int err, family, fd;
-
-	family = is_ipv6(ip) ? AF_INET6 : AF_INET;
-	err = make_sockaddr(family, ip, port, addr, NULL);
-	if (CHECK(err, "make_address", "failed\n"))
-		return -1;
-
-	fd = socket(addr->ss_family, sotype, 0);
-	if (CHECK(fd < 0, "socket", "failed\n")) {
-		log_err("failed to make socket");
-		return -1;
-	}
-
-	err = setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &timeo, sizeof(timeo));
-	if (CHECK(err, "setsockopt(SO_SNDTIMEO)", "failed\n")) {
-		log_err("failed to set SNDTIMEO");
-		close(fd);
-		return -1;
-	}
-
-	err = setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeo, sizeof(timeo));
-	if (CHECK(err, "setsockopt(SO_RCVTIMEO)", "failed\n")) {
-		log_err("failed to set RCVTIMEO");
-		close(fd);
-		return -1;
-	}
-
-	return fd;
-}
-
 static int setsockopts(int fd, void *opts)
 {
 	struct cb_opts *co = (struct cb_opts *)opts;
@@ -842,6 +806,7 @@ static void test_redirect_lookup(struct test_sk_lookup *skel)
 
 static void drop_on_lookup(const struct test *t)
 {
+	int family = is_ipv6(t->connect_to.ip) ? AF_INET6 : AF_INET;
 	struct sockaddr_storage dst = {};
 	int client_fd, server_fd, err;
 	struct bpf_link *lookup_link;
@@ -856,11 +821,13 @@ static void drop_on_lookup(const struct test *t)
 	if (server_fd < 0)
 		goto detach;
 
-	client_fd = make_socket(t->sotype, t->connect_to.ip,
-				t->connect_to.port, &dst);
-	if (client_fd < 0)
+	client_fd = client_socket(family, t->sotype, NULL);
+	if (!ASSERT_OK_FD(client_fd, "client_socket"))
 		goto close_srv;
 
+	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, NULL);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto close_all;
 	err = connect(client_fd, (void *)&dst, inetaddr_len(&dst));
 	if (t->sotype == SOCK_DGRAM) {
 		err = send_byte(client_fd);
@@ -956,6 +923,7 @@ static void test_drop_on_lookup(struct test_sk_lookup *skel)
 
 static void drop_on_reuseport(const struct test *t)
 {
+	int family = is_ipv6(t->connect_to.ip) ? AF_INET6 : AF_INET;
 	struct sockaddr_storage dst = { 0 };
 	int client, server1, server2, err;
 	struct bpf_link *lookup_link;
@@ -980,11 +948,13 @@ static void drop_on_reuseport(const struct test *t)
 	if (server2 < 0)
 		goto close_srv1;
 
-	client = make_socket(t->sotype, t->connect_to.ip,
-			     t->connect_to.port, &dst);
-	if (client < 0)
+	client = client_socket(family, t->sotype, NULL);
+	if (!ASSERT_OK_FD(client, "client_socket"))
 		goto close_srv2;
 
+	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, NULL);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto close_all;
 	err = connect(client, (void *)&dst, inetaddr_len(&dst));
 	if (t->sotype == SOCK_DGRAM) {
 		err = send_byte(client);
@@ -1228,10 +1198,13 @@ static void run_multi_prog_lookup(const struct test_multi_prog *t)
 	if (err)
 		goto out_close_server;
 
-	client_fd = make_socket(SOCK_STREAM, EXT_IP4, EXT_PORT, &dst);
-	if (client_fd < 0)
+	client_fd = client_socket(AF_INET, SOCK_STREAM, NULL);
+	if (!ASSERT_OK_FD(client_fd, "client_socket"))
 		goto out_close_server;
 
+	err = make_sockaddr(AF_INET, EXT_IP4, EXT_PORT, &dst, NULL);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto out_close_client;
 	err = connect(client_fd, (void *)&dst, inetaddr_len(&dst));
 	if (CHECK(err && !t->expect_errno, "connect",
 		  "unexpected error %d\n", errno))
-- 
2.43.0

[PATCH bpf-next 3/4] selftests/bpf: Drop inetaddr_len in sk_lookup

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

No need to use a dedicated helper inetaddr_len() to get the length of
the IPv4 or IPv6 address, it can be got by make_sockaddr(), this patch
drops it.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 .../selftests/bpf/prog_tests/sk_lookup.c      | 21 ++++++++-----------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
index 88f2f9efeea5..96f3863da8bc 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
@@ -106,12 +106,6 @@ static int attach_reuseport(int sock_fd, struct bpf_program *reuseport_prog)
 	return 0;
 }
 
-static socklen_t inetaddr_len(const struct sockaddr_storage *addr)
-{
-	return (addr->ss_family == AF_INET ? sizeof(struct sockaddr_in) :
-		addr->ss_family == AF_INET6 ? sizeof(struct sockaddr_in6) : 0);
-}
-
 static int setsockopts(int fd, void *opts)
 {
 	struct cb_opts *co = (struct cb_opts *)opts;
@@ -810,6 +804,7 @@ static void drop_on_lookup(const struct test *t)
 	struct sockaddr_storage dst = {};
 	int client_fd, server_fd, err;
 	struct bpf_link *lookup_link;
+	socklen_t len;
 	ssize_t n;
 
 	lookup_link = attach_lookup_prog(t->lookup_prog);
@@ -825,10 +820,10 @@ static void drop_on_lookup(const struct test *t)
 	if (!ASSERT_OK_FD(client_fd, "client_socket"))
 		goto close_srv;
 
-	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, NULL);
+	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, &len);
 	if (!ASSERT_OK(err, "make_sockaddr"))
 		goto close_all;
-	err = connect(client_fd, (void *)&dst, inetaddr_len(&dst));
+	err = connect(client_fd, (void *)&dst, len);
 	if (t->sotype == SOCK_DGRAM) {
 		err = send_byte(client_fd);
 		if (err)
@@ -927,6 +922,7 @@ static void drop_on_reuseport(const struct test *t)
 	struct sockaddr_storage dst = { 0 };
 	int client, server1, server2, err;
 	struct bpf_link *lookup_link;
+	socklen_t len;
 	ssize_t n;
 
 	lookup_link = attach_lookup_prog(t->lookup_prog);
@@ -952,10 +948,10 @@ static void drop_on_reuseport(const struct test *t)
 	if (!ASSERT_OK_FD(client, "client_socket"))
 		goto close_srv2;
 
-	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, NULL);
+	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, &len);
 	if (!ASSERT_OK(err, "make_sockaddr"))
 		goto close_all;
-	err = connect(client, (void *)&dst, inetaddr_len(&dst));
+	err = connect(client, (void *)&dst, len);
 	if (t->sotype == SOCK_DGRAM) {
 		err = send_byte(client);
 		if (err)
@@ -1169,6 +1165,7 @@ static void run_multi_prog_lookup(const struct test_multi_prog *t)
 	int map_fd, server_fd, client_fd;
 	struct bpf_link *link1, *link2;
 	int prog_idx, done, err;
+	socklen_t len;
 
 	map_fd = bpf_map__fd(t->run_map);
 
@@ -1202,10 +1199,10 @@ static void run_multi_prog_lookup(const struct test_multi_prog *t)
 	if (!ASSERT_OK_FD(client_fd, "client_socket"))
 		goto out_close_server;
 
-	err = make_sockaddr(AF_INET, EXT_IP4, EXT_PORT, &dst, NULL);
+	err = make_sockaddr(AF_INET, EXT_IP4, EXT_PORT, &dst, &len);
 	if (!ASSERT_OK(err, "make_sockaddr"))
 		goto out_close_client;
-	err = connect(client_fd, (void *)&dst, inetaddr_len(&dst));
+	err = connect(client_fd, (void *)&dst, len);
 	if (CHECK(err && !t->expect_errno, "connect",
 		  "unexpected error %d\n", errno))
 		goto out_close_client;
-- 
2.43.0

[PATCH bpf-next 4/4] selftests/bpf: Drop __start_server in network_helpers

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

The helper start_server_addr() is a wrapper of __start_server(), the
only difference between them is __start_server() accepts a sockaddr type
address parameter, but start_server_addr() accepts a sockaddr_storage one.

This patch drops __start_server(), and updates the callers to invoke
start_server_addr() instead.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/network_helpers.c | 26 +++++++------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index 9c98a60cf1e2..a3f0a49fb26f 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -80,12 +80,15 @@ int settimeo(int fd, int timeout_ms)
 
 #define save_errno_close(fd) ({ int __save = errno; close(fd); errno = __save; })
 
-static int __start_server(int type, const struct sockaddr *addr, socklen_t addrlen,
-			  const struct network_helper_opts *opts)
+int start_server_addr(int type, const struct sockaddr_storage *addr, socklen_t addrlen,
+		      const struct network_helper_opts *opts)
 {
 	int fd;
 
-	fd = socket(addr->sa_family, type, opts->proto);
+	if (!opts)
+		opts = &default_opts;
+
+	fd = socket(addr->ss_family, type, opts->proto);
 	if (fd < 0) {
 		log_err("Failed to create server socket");
 		return -1;
@@ -100,7 +103,7 @@ static int __start_server(int type, const struct sockaddr *addr, socklen_t addrl
 		goto error_close;
 	}
 
-	if (bind(fd, addr, addrlen) < 0) {
+	if (bind(fd, (struct sockaddr *)addr, addrlen) < 0) {
 		log_err("Failed to bind socket");
 		goto error_close;
 	}
@@ -131,7 +134,7 @@ int start_server_str(int family, int type, const char *addr_str, __u16 port,
 	if (make_sockaddr(family, addr_str, port, &addr, &addrlen))
 		return -1;
 
-	return __start_server(type, (struct sockaddr *)&addr, addrlen, opts);
+	return start_server_addr(type, &addr, addrlen, opts);
 }
 
 int start_server(int family, int type, const char *addr_str, __u16 port,
@@ -173,7 +176,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str,
 	if (!fds)
 		return NULL;
 
-	fds[0] = __start_server(type, (struct sockaddr *)&addr, addrlen, &opts);
+	fds[0] = start_server_addr(type, &addr, addrlen, &opts);
 	if (fds[0] == -1)
 		goto close_fds;
 	nr_fds = 1;
@@ -182,7 +185,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str,
 		goto close_fds;
 
 	for (; nr_fds < nr_listens; nr_fds++) {
-		fds[nr_fds] = __start_server(type, (struct sockaddr *)&addr, addrlen, &opts);
+		fds[nr_fds] = start_server_addr(type, &addr, addrlen, &opts);
 		if (fds[nr_fds] == -1)
 			goto close_fds;
 	}
@@ -194,15 +197,6 @@ int *start_reuseport_server(int family, int type, const char *addr_str,
 	return NULL;
 }
 
-int start_server_addr(int type, const struct sockaddr_storage *addr, socklen_t len,
-		      const struct network_helper_opts *opts)
-{
-	if (!opts)
-		opts = &default_opts;
-
-	return __start_server(type, (struct sockaddr *)addr, len, opts);
-}
-
 void free_fds(int *fds, unsigned int nr_close_fds)
 {
 	if (fds) {
-- 
2.43.0

Re: [PATCH bpf-next 0/4] use network helpers, part 10

[bot+bpf-ci]

[-- Attachment #1: Type: text/plain, Size: 514 bytes --]

Dear patch submitter,

CI has tested the following submission:
Status:     SUCCESS
Name:       [bpf-next,0/4] use network helpers, part 10
Patchwork:  https://patchwork.kernel.org/project/netdevbpf/list/?series=872683&state=*
Matrix:     https://github.com/kernel-patches/bpf/actions/runs/10019935133

No further action is necessary on your part.


Please note: this email is coming from an unmonitored mailbox. If you have
questions or feedback, please reach out to the Meta Kernel CI team at
kernel-ci@meta.com.

Re: [PATCH bpf-next 0/4] use network helpers, part 10

[bot+bpf-ci]

[-- Attachment #1: Type: text/plain, Size: 3126 bytes --]

Dear patch submitter,

CI has tested the following submission:
Status:     FAILURE
Name:       [bpf-next,0/4] use network helpers, part 10
Patchwork:  https://patchwork.kernel.org/project/netdevbpf/list/?series=872683&state=*
Matrix:     https://github.com/kernel-patches/bpf/actions/runs/10050705880

Failed jobs:
test_progs_no_alu32-aarch64-gcc: https://github.com/kernel-patches/bpf/actions/runs/10050705880/job/27779265107
test_progs_no_alu32-s390x-gcc: https://github.com/kernel-patches/bpf/actions/runs/10050705880/job/27779401509
test_progs_no_alu32-x86_64-gcc: https://github.com/kernel-patches/bpf/actions/runs/10050705880/job/27779392788
test_progs_no_alu32-x86_64-llvm-17: https://github.com/kernel-patches/bpf/actions/runs/10050705880/job/27779412425
test_progs_no_alu32-x86_64-llvm-18: https://github.com/kernel-patches/bpf/actions/runs/10050705880/job/27779413675

First test_progs failure (test_progs_no_alu32-aarch64-gcc):
#134 libbpf_get_fd_by_id_opts
libbpf: prog 'check_access': BPF program load failed: Invalid argument
libbpf: prog 'check_access': -- BEGIN PROG LOAD LOG --
0: R1=ctx() R10=fp0
; int BPF_PROG(check_access, struct bpf_map *map, fmode_t fmode) @ test_libbpf_get_fd_by_id_opts.c:27
0: (b7) r0 = 0                        ; R0_w=0
1: (79) r2 = *(u64 *)(r1 +0)
func 'bpf_lsm_bpf_map' arg0 has btf_id 2072 type STRUCT 'bpf_map'
2: R1=ctx() R2_w=trusted_ptr_bpf_map()
; if (map != (struct bpf_map *)&data_input) @ test_libbpf_get_fd_by_id_opts.c:29
2: (18) r3 = 0xffff0000c28d1a00       ; R3_w=map_ptr(map=data_input,ks=4,vs=4)
4: (5d) if r2 != r3 goto pc+4         ; R2_w=trusted_ptr_bpf_map() R3_w=map_ptr(map=data_input,ks=4,vs=4)
; int BPF_PROG(check_access, struct bpf_map *map, fmode_t fmode) @ test_libbpf_get_fd_by_id_opts.c:27
5: (79) r0 = *(u64 *)(r1 +8)          ; R0_w=scalar() R1=ctx()
; if (fmode & FMODE_WRITE) @ test_libbpf_get_fd_by_id_opts.c:32
6: (67) r0 <<= 62                     ; R0_w=scalar(smax=0x4000000000000000,umax=0xc000000000000000,smin32=0,smax32=umax32=0,var_off=(0x0; 0xc000000000000000))
7: (c7) r0 s>>= 63                    ; R0_w=scalar(smin=smin32=-1,smax=smax32=0)
;  @ test_libbpf_get_fd_by_id_opts.c:0
8: (57) r0 &= -13                     ; R0_w=scalar(smax=0x7ffffffffffffff3,umax=0xfffffffffffffff3,smax32=0x7ffffff3,umax32=0xfffffff3,var_off=(0x0; 0xfffffffffffffff3))
; int BPF_PROG(check_access, struct bpf_map *map, fmode_t fmode) @ test_libbpf_get_fd_by_id_opts.c:27
9: (95) exit
At program exit the register R0 has smax=9223372036854775795 should have been in [-4095, 0]
processed 9 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
-- END PROG LOAD LOG --
libbpf: prog 'check_access': failed to load: -22
libbpf: failed to load object 'test_libbpf_get_fd_by_id_opts'
libbpf: failed to load BPF skeleton 'test_libbpf_get_fd_by_id_opts': -22
test_libbpf_get_fd_by_id_opts:FAIL:test_libbpf_get_fd_by_id_opts__open_and_load unexpected error: -22


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Re: [PATCH bpf-next 0/4] use network helpers, part 10

[bot+bpf-ci]

[-- Attachment #1: Type: text/plain, Size: 514 bytes --]

Dear patch submitter,

CI has tested the following submission:
Status:     SUCCESS
Name:       [bpf-next,0/4] use network helpers, part 10
Patchwork:  https://patchwork.kernel.org/project/netdevbpf/list/?series=872683&state=*
Matrix:     https://github.com/kernel-patches/bpf/actions/runs/10051538319

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Re: [PATCH bpf-next 0/4] use network helpers, part 10

[patchwork-bot+netdevbpf]

Hello:

This series was applied to bpf/bpf-next.git (master)
by Martin KaFai Lau <martin.lau@kernel.org>:

On Sat, 20 Jul 2024 19:40:02 +0800 you wrote:
> From: Geliang Tang <tanggeliang@kylinos.cn>
> 
> This set is part 10 of series "use network helpers" all BPF selftests
> wide.
> 
> Patches 1-3 drop local functions make_client(), make_socket() and
> inetaddr_len() in sk_lookup.c. Patch 4 drops a useless function
> __start_server() in network_helpers.c.
> 
> [...]

Here is the summary with links:
  - [bpf-next,1/4] selftests/bpf: Drop make_client in sk_lookup
    https://git.kernel.org/bpf/bpf-next/c/a81b34bb2dc7
  - [bpf-next,2/4] selftests/bpf: Drop make_socket in sk_lookup
    https://git.kernel.org/bpf/bpf-next/c/c6b30248c21a
  - [bpf-next,3/4] selftests/bpf: Drop inetaddr_len in sk_lookup
    https://git.kernel.org/bpf/bpf-next/c/5849dff3414b
  - [bpf-next,4/4] selftests/bpf: Drop __start_server in network_helpers
    https://git.kernel.org/bpf/bpf-next/c/b27a9abd2dc1

You are awesome, thank you!
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