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authorYonghong Song <yonghong.song@linux.dev>2025-02-12 21:04:27 -0800
committerAlexei Starovoitov <ast@kernel.org>2025-02-12 21:56:30 -0800
commitf18169c89ea7cdab328712d858bc363afba5014c (patch)
tree8690ab76ac3cc1ab9c707825abef46c133f2fb90
parent4107a1aeb20ed4cdad6a0d49de92ea0f933c71b7 (diff)
bpf: Sync uapi bpf.h header for the tooling infra
Commit 0abff462d802 ("bpf: Add comment about helper freeze") missed the tooling header sync. Fix it. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20250213050427.2788837-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
-rw-r--r--tools/include/uapi/linux/bpf.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 2acf9b3363717..fff6cdb8d11a2 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -6019,7 +6019,10 @@ union bpf_attr {
FN(user_ringbuf_drain, 209, ##ctx) \
FN(cgrp_storage_get, 210, ##ctx) \
FN(cgrp_storage_delete, 211, ##ctx) \
- /* */
+ /* This helper list is effectively frozen. If you are trying to \
+ * add a new helper, you should add a kfunc instead which has \
+ * less stability guarantees. See Documentation/bpf/kfuncs.rst \
+ */
/* backwards-compatibility macros for users of __BPF_FUNC_MAPPER that don't
* know or care about integer value that is now passed as second argument