From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Haiyue Wang <haiyue.wang@intel.com>, bpf <bpf@vger.kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH bpf-next v1] bpf,arena: Rename the kfunc set variable
Date: Tue, 7 May 2024 14:20:32 -0700 [thread overview]
Message-ID: <CAEf4BzZaGcLTOBL=5nPWx22PKFOD7yg2a-qzV3dJ85S9hpCGjQ@mail.gmail.com> (raw)
In-Reply-To: <CAADnVQJuL18Zkyyztkmzm54yvq3CuB4bSjoL331cmcnX_kppeA@mail.gmail.com>
On Tue, May 7, 2024 at 1:42 PM Alexei Starovoitov
<alexei.starovoitov@gmail.com> wrote:
>
> On Tue, May 7, 2024 at 9:43 AM Andrii Nakryiko
> <andrii.nakryiko@gmail.com> wrote:
> >
> > On Tue, May 7, 2024 at 7:36 AM Alexei Starovoitov
> > <alexei.starovoitov@gmail.com> wrote:
> > >
> > > On Mon, May 6, 2024 at 7:46 PM Haiyue Wang <haiyue.wang@intel.com> wrote:
> > > >
> > > > Rename the kfunc set variable to specify the 'arena' function scope,
> > > > although the 'UNSPEC' type BPF program is mapped to 'COMMON' hook.
> > > >
> > > > And there is 'common_kfunc_set' defined for real 'common' function in
> > > > file 'kernel/bpf/helpers.c'.
> > >
> > > I think common_kfunc_set is a better name to describe that these
> > > two kfuncs are in a common category.
> > > BPF_PROG_TYPE_UNSPEC is a lot less obvious.
> > >
> > > There are two static common_kfunc_set in helpers.c and arena.c
> > > and that's fine.
> >
> > it is actually confusing when reading/grepping code, though, so why
>
> What's the confusion? Same name static var in different files?
Not in general, but in this case it's arena-specific kfuncs for all
program types, and it's initialized with &arena_kfuncs, so it would be
matching to have some "arena" mention in the name. But it's minor,
let's keep it.
> There are tons of such cases in the kernel src tree.
>
> > not have arena_common_kfunc_set and whatever the meaningful
> > "qualifier" name for the other one?
>
> arena_common_kfunc_set is certainly better than arena_kfunc_set,
> but I don't like to make the precedent to start renaming static vars
> because they have the same name.
>
> > >
> > > pw-bot: cr
next prev parent reply other threads:[~2024-05-07 21:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 2:49 [PATCH bpf-next v1] bpf,arena: Rename the kfunc set variable Haiyue Wang
2024-05-07 14:36 ` Alexei Starovoitov
2024-05-07 16:43 ` Andrii Nakryiko
2024-05-07 20:41 ` Alexei Starovoitov
2024-05-07 21:20 ` Andrii Nakryiko [this message]
2024-05-08 0:49 ` Wang, Haiyue
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAEf4BzZaGcLTOBL=5nPWx22PKFOD7yg2a-qzV3dJ85S9hpCGjQ@mail.gmail.com' \
--to=andrii.nakryiko@gmail.com \
--cc=alexei.starovoitov@gmail.com \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=eddyz87@gmail.com \
--cc=haiyue.wang@intel.com \
--cc=haoluo@google.com \
--cc=john.fastabend@gmail.com \
--cc=jolsa@kernel.org \
--cc=kpsingh@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=martin.lau@linux.dev \
--cc=sdf@google.com \
--cc=song@kernel.org \
--cc=yonghong.song@linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).