From 3ef4641fbf870ee1ecd5f890a54881b7f0e20b90 Mon Sep 17 00:00:00 2001
From: Gary Lin <glin@suse.com>
Date: Wed, 8 May 2019 15:54:48 +0800
Subject: [PATCH] docs/btf: fix the missing section marks
The section titles of 3.4 and 3.5 are not marked correctly.
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---
Documentation/bpf/btf.rst | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/bpf/btf.rst b/Documentation/bpf/btf.rst
index 29396e6943b03..8820360d00daf 100644
--- a/Documentation/bpf/btf.rst
+++ b/Documentation/bpf/btf.rst
@@ -578,6 +578,7 @@ For line_info, the line number and column number are defined as below:
#define BPF_LINE_INFO_LINE_COL(line_col) ((line_col) & 0x3ff)
3.4 BPF_{PROG,MAP}_GET_NEXT_ID
+==============================
In kernel, every loaded program, map or btf has a unique id. The id won't
change during the lifetime of a program, map, or btf.
@@ -587,6 +588,7 @@ each command, to user space, for bpf program or maps, respectively, so an
inspection tool can inspect all programs and maps.
3.5 BPF_{PROG,MAP}_GET_FD_BY_ID
+===============================
An introspection tool cannot use id to get details about program or maps.
A file descriptor needs to be obtained first for reference-counting purpose.
--
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