From f18169c89ea7cdab328712d858bc363afba5014c Mon Sep 17 00:00:00 2001 From: Yonghong Song Date: Wed, 12 Feb 2025 21:04:27 -0800 Subject: [PATCH] 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 Link: https://lore.kernel.org/r/20250213050427.2788837-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov --- tools/include/uapi/linux/bpf.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) 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 -- 2.39.5