linux-kernel - Re: [PATCH v2] bpftool, selftests/hid/bpf: fix 29 clang warnings

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Message-ID: <d9d6c08f-ad8a-4456-930e-9d2179a490e3@kernel.org>
Date: Mon, 6 May 2024 01:00:17 +0100
From: Quentin Monnet <qmo@...nel.org>
To: John Hubbard <jhubbard@...dia.com>, Shuah Khan <shuah@...nel.org>
Cc: Jiri Kosina <jikos@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>,
 Justin Stitt <justinstitt@...gle.com>,
 Peter Hutterer <peter.hutterer@...-t.net>,
 Jason Gerecke <jason.gerecke@...om.com>,
 Joshua Dickens <joshua@...hua-dickens.com>,
 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@...gle.com>, Hao Luo <haoluo@...gle.com>,
 Jiri Olsa <jolsa@...nel.org>, bpf@...r.kernel.org,
 linux-input@...r.kernel.org, Valentin Obst <kernel@...entinobst.de>,
 linux-kselftest@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
 llvm@...ts.linux.dev
Subject: Re: [PATCH v2] bpftool, selftests/hid/bpf: fix 29 clang warnings

On 06/05/2024 00:00, John Hubbard wrote:
> When building either tools/bpf/bpftool, or tools/testing/selftests/hid,
> (the same Makefile is used for these), clang generates many instances of
> the following:
> 
>     "clang: warning: -lLLVM-17: 'linker' input unused"
> 
> Quentin points out that the LLVM version is only required in $(LIBS),
> not in $(CFLAGS), so the fix is to remove it from CFLAGS.
> 
> Suggested-by: Quentin Monnet <qmo@...nel.org>
> Signed-off-by: John Hubbard <jhubbard@...dia.com>
Acked-by: Quentin Monnet <qmo@...nel.org>

Thank you!