linux-kernel - Re: [PATCH net-next] net: netlink: remove netlink_broadcast

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Message-ID: <CADxym3Ycq=H74N7MLak-kub_qWeFCJLhZFgnjKKPPARXktJO2w@mail.gmail.com>
Date:   Wed, 26 May 2021 20:22:02 +0800
From:   Menglong Dong <menglong8.dong@...il.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>, mkubecek@...e.cz,
        dsahern@...nel.org, zhudi21@...wei.com, johannes.berg@...el.com,
        marcelo.leitner@...il.com,
        Menglong Dong <dong.menglong@....com.cn>, ast@...nel.org,
        yhs@...com, rdunlap@...radead.org, yangyingliang@...wei.com,
        0x7f454c46@...il.com, LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next] net: netlink: remove netlink_broadcast_filtered

On Wed, May 26, 2021 at 5:28 PM Daniel Lezcano
<daniel.lezcano@...aro.org> wrote:
>
[...]
>
> I was trying to figure out if the function could be useful to filter out
> some netlink messages when sending them to userspace.
>
> Still looking for examples :/
>
> On the other side, this function was put there as part of the network
> namespace infrastructure. Even there is no user, it may be needed.
>

I noticed that the function has not been used since it was added over
ten years ago, and thought that it may not be used in the future.

If you think it may be needed, let's just keep it!

Thanks!
Menglong Dong