linux-kernel - [PATCH bpf-next v2 0/2] Add prog

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Message-Id: <20250123165548.272140-1-chen.dylane@gmail.com>
Date: Fri, 24 Jan 2025 00:55:46 +0800
From: Tao Chen <chen.dylane@...il.com>
To: ast@...nel.org,
	daniel@...earbox.net,
	andrii@...nel.org,
	eddyz87@...il.com,
	haoluo@...gle.com,
	jolsa@...nel.org,
	qmo@...nel.org
Cc: bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Tao Chen <chen.dylane@...il.com>
Subject: [PATCH bpf-next v2 0/2] Add prog_kfunc feature probe

More and more kfunc functions are being added to the kernel.
Different prog types have different restrictions when using kfunc.
Therefore, prog_kfunc probe is added to check whether it is supported,
and the use of this api will be added to bpftool later.

Change list:
- v1 -> v2:
  - check unsupported prog type like probe_bpf_helper
  - add off parameter for module btf
  - chenk verifier info when kfunc id invalid

Revisions:
- v1
  https://lore.kernel.org/bpf/20250122171359.232791-1-chen.dylane@gmail.com

Tao Chen (2):
  libbpf: Add libbpf_probe_bpf_kfunc API
  selftests/bpf: Add libbpf_probe_bpf_kfunc API selftests

 tools/lib/bpf/libbpf.h                        | 17 ++++++-
 tools/lib/bpf/libbpf.map                      |  1 +
 tools/lib/bpf/libbpf_probes.c                 | 47 +++++++++++++++++++
 .../selftests/bpf/prog_tests/libbpf_probes.c  | 35 ++++++++++++++
 4 files changed, 99 insertions(+), 1 deletion(-)

-- 
2.43.0