Re: [PATCH RFC net-next 0/3] Multi-CPU DSA support

On Sat, 24 Aug 2019 17:24:07 +0200
Andrew Lunn [off-list ref] 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