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Date:   Sun, 25 Aug 2019 06:19:53 +0200
From:   Marek Behun <marek.behun@nic.cz>
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     netdev@vger.kernel.org, Vivien Didelot <vivien.didelot@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        David Ahern <dsahern@gmail.com>,
        Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH RFC net-next 0/3] Multi-CPU DSA support
Message-ID: <20190825061953.6c5c43b7@nic.cz>
In-Reply-To: <20190824152407.GA8251@lunn.ch>
References: <20190824024251.4542-1-marek.behun@nic.cz>
        <20190824152407.GA8251@lunn.ch>
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On Sat, 24 Aug 2019 17:24:07 +0200
Andrew Lunn <andrew@lunn.ch> wrote:

> That is a new idea. Interesting.
> 
> I would like to look around and see what else uses this "lan1@eth0"
> concept. We need to ensure it is not counter intuitive in general,
> when you consider all possible users.

There are not many users of ndo_get_iflink besides DSA slave:
  ip6_gre, ip6_vti, sit, ip6_tunnel
  ip_gte, ip_vti, ipmr, ipip,
  macsec, macvlan, veth
  ipvlan
  ipoib
and a few other. What these have in common is that all these interfaces
are linked somehow to another interfacem, ie. a macvlan interface eth0.1
is linked to it's master interface eth0. All of these are virtual
interfaces.

Marek