tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
1
fork

Configure Feed

Select the types of activity you want to include in your feed.

bpf: Add comment about helper freeze

Put a comment after the bpf helper list in uapi bpf.h to prevent people
from trying to add new helpers there and direct them to kfuncs.

Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Levi Zim <rsworktech@outlook.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Daniel Xu <dxu@dxuuu.xyz>
Link: https://lore.kernel.org/bpf/CAEf4BzZvQF+QQ=oip4vdz5A=9bd+OmN-CXk5YARYieaipK9s+A@mail.gmail.com/
Link: https://lore.kernel.org/bpf/20221231004213.h5fx3loccbs5hyzu@macbook-pro-6.dhcp.thefacebook.com/
Link: https://lore.kernel.org/bpf/20250204-bpf-helper-freeze-v1-1-46efd9ff20dc@outlook.com

authored by

Levi Zim and committed by
Andrii Nakryiko 0abff462 94f53edc

+4 -1
+4 -1
include/uapi/linux/bpf.h
··· 6019 6019 FN(user_ringbuf_drain, 209, ##ctx) \ 6020 6020 FN(cgrp_storage_get, 210, ##ctx) \ 6021 6021 FN(cgrp_storage_delete, 211, ##ctx) \ 6022 - /* */ 6022 + /* This helper list is effectively frozen. If you are trying to \ 6023 + * add a new helper, you should add a kfunc instead which has \ 6024 + * less stability guarantees. See Documentation/bpf/kfuncs.rst \ 6025 + */ 6023 6026 6024 6027 /* backwards-compatibility macros for users of __BPF_FUNC_MAPPER that don't 6025 6028 * know or care about integer value that is now passed as second argument