linux-kernel - Re: [PATCH v2] libbpf: optimize the redundant code in the bpf_object__init_user_btf

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Message-ID: <01719c2d-ddd1-4f96-8bae-40144f0410c7@linux.dev>
Date: Tue, 28 Oct 2025 09:24:32 -0700
From: Yonghong Song <yonghong.song@...ux.dev>
To: Jianyun Gao <jianyungao89@...il.com>, linux-kernel@...r.kernel.org
Cc: Andrii Nakryiko <andrii@...nel.org>, Eduard Zingerman
 <eddyz87@...il.com>, Alexei Starovoitov <ast@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>,
 Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>,
 John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>,
 Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>,
 Jiri Olsa <jolsa@...nel.org>,
 "open list:BPF [LIBRARY] (libbpf)" <bpf@...r.kernel.org>
Subject: Re: [PATCH v2] libbpf: optimize the redundant code in the
 bpf_object__init_user_btf_maps() function.

On 10/24/25 1:08 AM, Jianyun Gao wrote:
> In the elf_sec_data() function, the input parameter 'scn' will be
> evaluated. If it is NULL, then it will directly return NULL. Therefore,
> the return value of the elf_sec_data() function already takes into
> account the case where the input parameter scn is NULL. Therefore,
> subsequently, the code only needs to check whether the return value of
> the elf_sec_data() function is NULL.
>
> Signed-off-by: Jianyun Gao <jianyungao89@...il.com>

Acked-by: Yonghong Song <yonghong.song@...ux.dev>