linux-kernel - [PATCH net-next v2 2/4] selftests/landlock: Move some UAPI header inclusions after libc ones

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Message-Id: <20260120-uapi-sockaddr-v2-2-63c319111cf6@linutronix.de>
Date: Tue, 20 Jan 2026 15:10:32 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Eric Dumazet <edumazet@...gle.com>, 
 Kuniyuki Iwashima <kuniyu@...gle.com>, Paolo Abeni <pabeni@...hat.com>, 
 Willem de Bruijn <willemb@...gle.com>, 
 "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
 Simon Horman <horms@...nel.org>, Shuah Khan <shuah@...nel.org>, 
 Matthieu Baerts <matttbe@...nel.org>, Mat Martineau <martineau@...nel.org>, 
 Geliang Tang <geliang@...nel.org>, 
 Mickaël Salaün <mic@...ikod.net>, 
 Günther Noack <gnoack@...gle.com>, 
 Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
 Jesper Dangaard Brouer <hawk@...nel.org>, 
 John Fastabend <john.fastabend@...il.com>, 
 Stanislav Fomichev <sdf@...ichev.me>, Andrii Nakryiko <andrii@...nel.org>, 
 Martin KaFai Lau <martin.lau@...ux.dev>, 
 Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>, 
 Yonghong Song <yonghong.song@...ux.dev>, KP Singh <kpsingh@...nel.org>, 
 Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-api@...r.kernel.org, Arnd Bergmann <arnd@...db.de>, 
 linux-kselftest@...r.kernel.org, mptcp@...ts.linux.dev, 
 linux-security-module@...r.kernel.org, bpf@...r.kernel.org, 
 libc-alpha@...rceware.org, Carlos O'Donell <carlos@...hat.com>, 
 Adhemerval Zanella <adhemerval.zanella@...aro.org>, 
 Rich Felker <dalias@...c.org>, klibc@...or.com, 
 Florian Weimer <fweimer@...hat.com>, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH net-next v2 2/4] selftests/landlock: Move some UAPI header
 inclusions after libc ones

Interleaving inclusions of UAPI headers and libc headers is problematic.
Both sets of headers define conflicting symbols. To enable their
coexistence a compatibility-mechanism is in place.

An upcoming change will define 'struct sockaddr' from linux/socket.h.
However sys/socket.h from libc does not yet handle this case and a
symbol conflict will arise.

Move the inclusion of all UAPI headers after the inclusion of the glibc
ones, so the compatibility mechanism from the UAPI headers is used.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 tools/testing/selftests/landlock/audit.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/landlock/audit.h b/tools/testing/selftests/landlock/audit.h
index 44eb433e9666..c12b16c690dc 100644
--- a/tools/testing/selftests/landlock/audit.h
+++ b/tools/testing/selftests/landlock/audit.h
@@ -7,9 +7,6 @@

 #define _GNU_SOURCE
 #include <errno.h>
-#include <linux/audit.h>
-#include <linux/limits.h>
-#include <linux/netlink.h>
 #include <regex.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -20,6 +17,10 @@
 #include <sys/time.h>
 #include <unistd.h>

+#include <linux/audit.h>
+#include <linux/limits.h>
+#include <linux/netlink.h>
+
 #include "kselftest.h"

 #ifndef ARRAY_SIZE

-- 
2.52.0