linux-kernel - Re: [PATCH bpf-next v9 2/9] libbpf: Add support for extended bpf syscall

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Message-ID: <CAEf4BzZ7Sa2dAUyw5kjaLiwtr7q4_H97uTpb2bsbqFuiy153fg@mail.gmail.com>
Date: Wed, 4 Feb 2026 11:48:39 -0800
From: Andrii Nakryiko <andrii.nakryiko@...il.com>
To: Leon Hwang <leon.hwang@...ux.dev>
Cc: bpf@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>, 
	Daniel Borkmann <daniel@...earbox.net>, John Fastabend <john.fastabend@...il.com>, 
	Andrii Nakryiko <andrii@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, 
	Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>, 
	Yonghong Song <yonghong.song@...ux.dev>, KP Singh <kpsingh@...nel.org>, 
	Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>, 
	Shuah Khan <shuah@...nel.org>, Christian Brauner <brauner@...nel.org>, 
	Seth Forshee <sforshee@...nel.org>, Yuichiro Tsuji <yuichtsu@...zon.com>, 
	Andrey Albershteyn <aalbersh@...hat.com>, Willem de Bruijn <willemb@...gle.com>, 
	Jason Xing <kerneljasonxing@...il.com>, Tao Chen <chen.dylane@...ux.dev>, 
	Mykyta Yatsenko <yatsenko@...a.com>, Kumar Kartikeya Dwivedi <memxor@...il.com>, 
	Anton Protopopov <a.s.protopopov@...il.com>, Amery Hung <ameryhung@...il.com>, 
	Rong Tao <rongtao@...tc.cn>, linux-kernel@...r.kernel.org, linux-api@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, kernel-patches-bot@...com
Subject: Re: [PATCH bpf-next v9 2/9] libbpf: Add support for extended bpf syscall

On Mon, Feb 2, 2026 at 6:41 AM Leon Hwang <leon.hwang@...ux.dev> wrote:
>
> To support the extended BPF syscall introduced in the previous commit,
> introduce the following internal APIs:
>
> * 'sys_bpf_ext()'
> * 'sys_bpf_ext_fd()'
>   They wrap the raw 'syscall()' interface to support passing extended
>   attributes.
> * 'probe_sys_bpf_ext()'
>   Check whether current kernel supports the BPF syscall common attributes.
>
> Signed-off-by: Leon Hwang <leon.hwang@...ux.dev>
> ---
>  tools/lib/bpf/bpf.c             | 36 +++++++++++++++++++++++++++++++++
>  tools/lib/bpf/features.c        |  8 ++++++++
>  tools/lib/bpf/libbpf_internal.h |  3 +++
>  3 files changed, 47 insertions(+)
>

LGTM

Acked-by: Andrii Nakryiko <andrii@...nel.org>

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