linux-kernel - Re: [PATCH v2] libbpf: workaround -Wmaybe-uninitialized false positive

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Message-ID: <87mslija6d.fsf@gentoo.org>
Date: Mon, 12 Aug 2024 11:40:58 +0100
From: Sam James <sam@...too.org>
To: Alan Maguire <alan.maguire@...cle.com>
Cc: Alexei Starovoitov <ast@...nel.org>,  Daniel Borkmann
 <daniel@...earbox.net>,  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>,
  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>,  Nathan Chancellor
 <nathan@...nel.org>,  Nick Desaulniers <ndesaulniers@...gle.com>,  Bill
 Wendling <morbo@...gle.com>,  Justin Stitt <justinstitt@...gle.com>,
  "Jose E . Marchesi" <jose.marchesi@...cle.com>,  Andrew Pinski
 <quic_apinski@...cinc.com>,  Kacper Słomiński
 <kacper.slominski72@...il.com>,  Arsen Arsenović
 <arsen@...too.org>,
  bpf@...r.kernel.org,  linux-kernel@...r.kernel.org,  llvm@...ts.linux.dev
Subject: Re: [PATCH v2] libbpf: workaround -Wmaybe-uninitialized false positive

Alan Maguire <alan.maguire@...cle.com> writes:

> On 09/08/2024 18:26, Sam James wrote:
>> In `elf_close`, we get this with GCC 15 -O3 (at least):
> [...]
>
> Would just initializing struct elf_fd be enough to silence the error
> perhaps, i.e.

Yeah, that WFM. Thanks, sent v3.