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From:   Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To:     Steven Rostedt <rostedt@goodmis.org>
Cc:     linux-kernel@vger.kernel.org,
        Beau Belgrave <beaub@linux.microsoft.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        linux-trace-devel <linux-trace-devel@vger.kernel.org>,
        bpf <bpf@vger.kernel.org>,
        Network Development <netdev@vger.kernel.org>,
        Alexei Starovoitov <alexei.starovoitov@gmail.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: [PATCH] tracing: do not export user_events uapi
Date:   Wed, 30 Mar 2022 16:17:55 -0400
Message-Id: <20220330201755.29319-1-mathieu.desnoyers@efficios.com>
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
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In addition to mark the USER_EVENTS feature BROKEN until all interested
parties figure out the user-space API, do not install the uapi header.

This prevents situations where a non-final uapi header would end up
being installed into a distribution image and used to build user-space
programs that would then run against newer kernels that will implement
user events with a different ABI.

Link: https://lore.kernel.org/all/20220330155835.5e1f6669@gandalf.local.h=
ome

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---
 include/uapi/Kbuild | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/Kbuild b/include/uapi/Kbuild
index 61ee6e59c930..425ea8769ddc 100644
--- a/include/uapi/Kbuild
+++ b/include/uapi/Kbuild
@@ -12,3 +12,6 @@ ifeq ($(wildcard $(objtree)/arch/$(SRCARCH)/include/gen=
erated/uapi/asm/kvm_para.
 no-export-headers +=3D linux/kvm_para.h
 endif
 endif
+
+# API is not finalized
+no-export-headers +=3D linux/user_events.h
--=20
2.20.1