Merge tag 'sound-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...

[linux-2.6-microblaze.git] / Documentation / bpf / btf.rst

diff --git a/Documentation/bpf/btf.rst b/Documentation/bpf/btf.rst
index f49aeef..cf8722f 100644 (file)
--- a/Documentation/bpf/btf.rst
+++ b/Documentation/bpf/btf.rst
@@ -369,7 +369,8 @@ No additional type data follow ``btf_type``.
   * ``name_off``: offset to a valid C identifier
   * ``info.kind_flag``: 0
   * ``info.kind``: BTF_KIND_FUNC
-  * ``info.vlen``: 0
+  * ``info.vlen``: linkage information (BTF_FUNC_STATIC, BTF_FUNC_GLOBAL
+                   or BTF_FUNC_EXTERN)
   * ``type``: a BTF_KIND_FUNC_PROTO type
 
 No additional type data follow ``btf_type``.
@@ -380,6 +381,9 @@ type. The BTF_KIND_FUNC may in turn be referenced by a func_info in the
 :ref:`BTF_Ext_Section` (ELF) or in the arguments to :ref:`BPF_Prog_Load`
 (ABI).
 
+Currently, only linkage values of BTF_FUNC_STATIC and BTF_FUNC_GLOBAL are
+supported in the kernel.
+
 2.2.13 BTF_KIND_FUNC_PROTO
 ~~~~~~~~~~~~~~~~~~~~~~~~~~