From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BAA0D4B2034; Fri, 18 Sep 2026 10:26:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789727175; cv=none; b=FTNktXZAPp5i8f9jEnAWIsYb8804G7bs4+DYTij/ujlx40VoGSG0QgIDupu9Costiliv7RE7tnujJP989xyGyQ+toFrtgA8jgtP7Twr3ddt2w03aBHgwPYzE5YefZD9wcCXcbN5D+SYJVFtjMbLVZ3RsdryZXDGqeHf9A5kLM5Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789727175; c=relaxed/simple; bh=loL0NiLAjp5iTAH9HPWhC5LPpDbWZJVSjszbtqpz5gE=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=uiu4N3m66HVT1xt3w8GdPz0hCOMRIoixHvlNRyHZ8pdk8iDOYeT3BNy1SfV3BAxN0fSJe6HR4CQk08OEUJ/YEsDBHp+jXtChB0/66QA9vMKU75UU+Vebhf0n+0jQed/KVp71t8OfAVAE/eGh28k43uNc+rY3AKBJKWc2UxXa/VA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=FYZ7Cejy; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=8r+vX8Dl; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="FYZ7Cejy"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="8r+vX8Dl" Date: Fri, 18 Sep 2026 12:26:10 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1789727171; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=+F6KanK2dKkgBQkaStorjsVXPxHRSnOFUadn46f10vk=; b=FYZ7Cejy/zsiX0SVh/rv8cE+fYoJbjKdiV5vKePcCgI7EjStAYSIHQaZoTOgBnAkzemK9Z KY2zfq6iiXEv4wDvDz7uCq/NQu6LpK55dk0jTX41AL74lU5jo6jka9PDeM6Ix1lHmKZGnF ZUz08BDe78Y+QRhjDp+2oy9+0PPNOjn7Wv7k58QgLboI4s9hrY5NnNep8JzoAP3BqcDZKN +HQkXmYwGAJD/m7UOFUqQRJvsCVwBFXCUczYHK0AGfdzVtiaLuwzCVN7ZATg8j/u8HLLYV qEZ6eLUfAdY8aNq5wqssMEmAo0GMXj5JXBN2Nrbb60wfp6hYGGugSNzFIBc8uA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1789727171; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=+F6KanK2dKkgBQkaStorjsVXPxHRSnOFUadn46f10vk=; b=8r+vX8Dlqn7qsQOQB75tW5s7tzoz1xhwS0H0nxSeKz26tPx6v1hvvHxZDM8vGivzjTVZb6 mNcHfI3D/ob++uDw== From: Sebastian Andrzej Siewior To: bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Andrii Nakryiko , Eduard Zingerman , Ihor Solodrai , Alexei Starovoitov , Daniel Borkmann , Kumar Kartikeya Dwivedi , Martin KaFai Lau , Song Liu , Yonghong Song , Jiri Olsa , Emil Tsalapatis , Shuah Khan Subject: [PATCH v2 bpf-next] selftests/bpf: Use %p for pointer formatting Message-ID: <20260918102610.gxA3km8_@linutronix.de> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Networking used to print the socket pointer with %p as output in the /proc interface. This was later changed to %pK in order not to reveal the actual pointer value. The output format has then been copied to bpf tests which produce the same format including the %pK format modifier. Networking recently replaced the socket output with a plain 0 because the socket pointer added no value to the output and the %pK should be removed from library handling. The format remained otherwise unchanged in order not to break any tools which parsing this information. This change removes the %pK modifier from bpf, following the change in networking. Signed-off-by: Sebastian Andrzej Siewior --- v1=E2=80=A6v2: https://lore.kernel.org/all/20260911145011.kErTVDkS@linutron= ix.de/ - sync dump_udp4(), dump_udp6() with net (0, spacing). The columns are (were) not aligned. - Update comment in snprintf.c tools/testing/selftests/bpf/README.rst | 2 +- tools/testing/selftests/bpf/prog_tests/snprintf.c | 4 ++-- tools/testing/selftests/bpf/progs/bpf_iter_netlink.c | 4 ++-- tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c | 11 +++++------ tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c | 11 +++++------ tools/testing/selftests/bpf/progs/bpf_iter_udp4.c | 4 ++-- tools/testing/selftests/bpf/progs/bpf_iter_udp6.c | 4 ++-- tools/testing/selftests/bpf/progs/bpf_iter_unix.c | 5 ++--- tools/testing/selftests/bpf/progs/test_snprintf.c | 4 ++-- 9 files changed, 23 insertions(+), 26 deletions(-) diff --git a/tools/testing/selftests/bpf/README.rst b/tools/testing/selftes= ts/bpf/README.rst index 07c834433b388..75ff1142c1857 100644 --- a/tools/testing/selftests/bpf/README.rst +++ b/tools/testing/selftests/bpf/README.rst @@ -187,7 +187,7 @@ The symptom for ``bpf_iter/netlink`` looks like ... 15: (bf) r2 =3D r7 16: (0f) r2 +=3D r1 - ; BPF_SEQ_PRINTF(seq, "%pK %-3d ", s, s->sk_protocol); + ; BPF_SEQ_PRINTF(seq, "%p %-3d ", s, s->sk_protocol); 17: (7b) *(u64 *)(r7 +0) =3D r2 only read is supported =20 diff --git a/tools/testing/selftests/bpf/prog_tests/snprintf.c b/tools/test= ing/selftests/bpf/prog_tests/snprintf.c index 4e4a82d54f799..ccfb02bd4e7cd 100644 --- a/tools/testing/selftests/bpf/prog_tests/snprintf.c +++ b/tools/testing/selftests/bpf/prog_tests/snprintf.c @@ -15,8 +15,8 @@ #define EXP_SYM_OUT "schedule schedule+0x0/" #define MIN_SYM_RET sizeof(EXP_SYM_OUT) =20 -/* The third specifier, %p, is a hashed pointer which changes on every reb= oot */ -#define EXP_ADDR_OUT "0000000000000000 ffff00000add4e55 " +/* The second specifier, %p, is a hashed pointer which changes on every re= boot */ +#define EXP_ADDR_OUT "ffff00000add4e55 " #define EXP_ADDR_RET sizeof(EXP_ADDR_OUT "unknownhashedptr") =20 #define EXP_STR_OUT "str1 a b c d e longstr" diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c b/tools/t= esting/selftests/bpf/progs/bpf_iter_netlink.c index 00b2ceae81fb0..b9107d3ab6039 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c @@ -25,12 +25,12 @@ int dump_netlink(struct bpf_iter__netlink *ctx) return 0; =20 if (ctx->meta->seq_num =3D=3D 0) - BPF_SEQ_PRINTF(seq, "sk Eth Pid Groups " + BPF_SEQ_PRINTF(seq, "sk Eth Pid Groups " "Rmem Wmem Dump Locks Drops " "Inode\n"); =20 s =3D &nlk->sk; - BPF_SEQ_PRINTF(seq, "%pK %-3d ", s, s->sk_protocol); + BPF_SEQ_PRINTF(seq, "0 %-3d ", s->sk_protocol); =20 if (!nlk->groups) { group =3D 0; diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c b/tools/test= ing/selftests/bpf/progs/bpf_iter_tcp4.c index b1e509b231cd9..d149cf0d07be6 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c @@ -131,8 +131,7 @@ static int dump_tcp_sock(struct seq_file *seq, struct t= cp_sock *tp, icsk->icsk_probes_out, sock_i_ino(sp), sp->sk_refcnt.refs.counter); - BPF_SEQ_PRINTF(seq, "%pK %lu %lu %u %u %d\n", - tp, + BPF_SEQ_PRINTF(seq, "0 %lu %lu %u %u %d\n", jiffies_to_clock_t(icsk->icsk_rto), jiffies_to_clock_t(icsk->icsk_ack.ato), (icsk->icsk_ack.quick << 1) | inet_csk_in_pingpong_mode(icsk), @@ -161,10 +160,10 @@ static int dump_tw_sock(struct seq_file *seq, struct = tcp_timewait_sock *ttw, BPF_SEQ_PRINTF(seq, "%4d: %08X:%04X %08X:%04X ", seq_num, src, srcp, dest, destp); =20 - BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n", + BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d 0\n", tw->tw_substate, 0, 0, 3, jiffies_delta_to_clock_t(delta), 0, 0, 0, 0, - tw->tw_refcnt.refs.counter, tw); + tw->tw_refcnt.refs.counter); =20 return 0; } @@ -185,9 +184,9 @@ static int dump_req_sock(struct seq_file *seq, struct t= cp_request_sock *treq, seq_num, irsk->ir_loc_addr, irsk->ir_num, irsk->ir_rmt_addr, bpf_ntohs(irsk->ir_rmt_port)); - BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n", + BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d 0\n", TCP_SYN_RECV, 0, 0, 1, jiffies_to_clock_t(ttd), - req->num_timeout, uid, 0, 0, 0, req); + req->num_timeout, uid, 0, 0, 0); =20 return 0; } diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c b/tools/test= ing/selftests/bpf/progs/bpf_iter_tcp6.c index dbc7166aee91f..cd65fa81f1219 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c @@ -135,8 +135,7 @@ static int dump_tcp6_sock(struct seq_file *seq, struct = tcp6_sock *tp, icsk->icsk_probes_out, sock_i_ino(sp), sp->sk_refcnt.refs.counter); - BPF_SEQ_PRINTF(seq, "%pK %lu %lu %u %u %d\n", - tp, + BPF_SEQ_PRINTF(seq, "0 %lu %lu %u %u %d\n", jiffies_to_clock_t(icsk->icsk_rto), jiffies_to_clock_t(icsk->icsk_ack.ato), (icsk->icsk_ack.quick << 1) | inet_csk_in_pingpong_mode(icsk), @@ -170,10 +169,10 @@ static int dump_tw_sock(struct seq_file *seq, struct = tcp_timewait_sock *ttw, dest->s6_addr32[0], dest->s6_addr32[1], dest->s6_addr32[2], dest->s6_addr32[3], destp); =20 - BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n", + BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d 0\n", tw->tw_substate, 0, 0, 3, jiffies_delta_to_clock_t(delta), 0, 0, 0, 0, - tw->tw_refcnt.refs.counter, tw); + tw->tw_refcnt.refs.counter); =20 return 0; } @@ -201,9 +200,9 @@ static int dump_req_sock(struct seq_file *seq, struct t= cp_request_sock *treq, dest->s6_addr32[0], dest->s6_addr32[1], dest->s6_addr32[2], dest->s6_addr32[3], bpf_ntohs(irsk->ir_rmt_port)); - BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n", + BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d 0\n", TCP_SYN_RECV, 0, 0, 1, jiffies_to_clock_t(ttd), - req->num_timeout, uid, 0, 0, 0, req); + req->num_timeout, uid, 0, 0, 0); =20 return 0; } diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c b/tools/test= ing/selftests/bpf/progs/bpf_iter_udp4.c index 23b2aa2604de2..d4079a619da66 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c @@ -57,13 +57,13 @@ int dump_udp4(struct bpf_iter__udp *ctx) BPF_SEQ_PRINTF(seq, "%5d: %08X:%04X %08X:%04X ", ctx->bucket, src, srcp, dest, destp); =20 - BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u= \n", + BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d 0 %u\n= ", inet->sk.sk_state, inet->sk.sk_wmem_alloc.refs.counter - 1, rqueue, 0, 0L, 0, ctx->uid, 0, sock_i_ino(&inet->sk), - inet->sk.sk_refcnt.refs.counter, udp_sk, + inet->sk.sk_refcnt.refs.counter, udp_sk->drop_counters.drops0.counter + udp_sk->drop_counters.drops1.counter); =20 diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c b/tools/test= ing/selftests/bpf/progs/bpf_iter_udp6.c index c48b05aa2a4b2..dadc5f73ff098 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c @@ -65,13 +65,13 @@ int dump_udp6(struct bpf_iter__udp *ctx) dest->s6_addr32[0], dest->s6_addr32[1], dest->s6_addr32[2], dest->s6_addr32[3], destp); =20 - BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u= \n", + BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d 0 %u\n= ", inet->sk.sk_state, inet->sk.sk_wmem_alloc.refs.counter - 1, rqueue, 0, 0L, 0, ctx->uid, 0, sock_i_ino(&inet->sk), - inet->sk.sk_refcnt.refs.counter, udp_sk, + inet->sk.sk_refcnt.refs.counter, udp_sk->drop_counters.drops0.counter + udp_sk->drop_counters.drops1.counter); return 0; diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_unix.c b/tools/test= ing/selftests/bpf/progs/bpf_iter_unix.c index a2652c8c3616f..df3d971b21e8a 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_unix.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_unix.c @@ -42,10 +42,9 @@ int dump_unix(struct bpf_iter__unix *ctx) seq =3D ctx->meta->seq; seq_num =3D ctx->meta->seq_num; if (seq_num =3D=3D 0) - BPF_SEQ_PRINTF(seq, "Num RefCount Protocol Flags Type S= t Inode Path\n"); + BPF_SEQ_PRINTF(seq, "Num RefCount Protocol Flags Type St Ino= de Path\n"); =20 - BPF_SEQ_PRINTF(seq, "%pK: %08X %08X %08X %04X %02X %8lu", - unix_sk, + BPF_SEQ_PRINTF(seq, "%08u: %08X %08X %08X %04X %02X %8lu", 0, sk->sk_refcnt.refs.counter, 0, sk->sk_state =3D=3D TCP_LISTEN ? __SO_ACCEPTCON : 0, diff --git a/tools/testing/selftests/bpf/progs/test_snprintf.c b/tools/test= ing/selftests/bpf/progs/test_snprintf.c index 8fda075440235..48a0025cf2ca8 100644 --- a/tools/testing/selftests/bpf/progs/test_snprintf.c +++ b/tools/testing/selftests/bpf/progs/test_snprintf.c @@ -57,8 +57,8 @@ int handler(const void *ctx) sym_ret =3D BPF_SNPRINTF(sym_out, sizeof(sym_out), "%ps %pS %pB", &schedule, &schedule, &schedule); /* Kernel pointers */ - addr_ret =3D BPF_SNPRINTF(addr_out, sizeof(addr_out), "%pK %px %p", - 0, 0xFFFF00000ADD4E55, 0xFFFF00000ADD4E55); + addr_ret =3D BPF_SNPRINTF(addr_out, sizeof(addr_out), "%px %p", + 0xFFFF00000ADD4E55, 0xFFFF00000ADD4E55); /* Strings and single-byte character embedding */ str_ret =3D BPF_SNPRINTF(str_out, sizeof(str_out), "%s % 9c %+2c %-3c %0= 4c %0c %+05s", str1, 'a', 'b', 'c', 'd', 'e', longstr); --=20 2.55.0