From: valdis.kletnieks@vt.edu
To: Song Liu <liu.song.a23@gmail.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Networking <netdev@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] bpf/core.c - silence warning messages
Date: Mon, 28 Jan 2019 18:35:16 -0500 [thread overview]
Message-ID: <9865.1548718516@turing-police.cc.vt.edu> (raw)
In-Reply-To: <CAPhsuW54z8ao4KOKG9ZjdXus6LTBH2qwAi8LgPFZ_qb_ObKsRg@mail.gmail.com>
On Mon, 28 Jan 2019 09:18:45 -0800, Song Liu said:
> On Sun, Jan 27, 2019 at 8:43 PM <valdis.kletnieks@vt.edu> wrote:
> > The attached patch silences the warnings, because we *know* we're overwriting
> > the default initializer. That leaves bpf/core.c with only 6 other warnings,
> > which become more visible in comparison.
>
> My concern is that this will also mute the warning for other parts of
> bpf/core.c.
I checked and there weren't any warnings for other parts of the file. Also, this message
doesn't even happen unless you build with W=1, which apparently happens so rarely
that nobody else has submitted a patch.
Is there a high likelihood that another overwrite of an initializer is going to
be included in the source?
> Maybe we should move bpf_opcode_in_insntable() to a separate file, and mute
> warning for that file?
Seems to be overkill - the intent of this patch was mostly to make the *other*
warnings issued with W=1 more noticable.
next prev parent reply other threads:[~2019-01-29 0:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-28 4:11 [PATCH] bpf/core.c - silence warning messages valdis.kletnieks
2019-01-28 17:18 ` Song Liu
2019-01-28 23:22 ` Daniel Borkmann
2019-01-28 23:48 ` valdis.kletnieks
2019-01-28 23:54 ` Daniel Borkmann
2019-01-28 23:35 ` valdis.kletnieks [this message]
2019-01-29 3:12 ` Song Liu
-- strict thread matches above, loose matches on Subject: below --
2019-06-07 2:39 Valdis Klētnieks
2019-06-11 5:46 ` Andrii Nakryiko
2019-06-12 14:56 ` Daniel Borkmann
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