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Date:   Thu, 3 Jun 2021 16:34:40 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     Joakim Tjernlund <Joakim.Tjernlund@infinera.com>
Cc:     "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: /sys/class/net/eth0/name_assign_type -> EINVAL
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On Thu, Jun 03, 2021 at 02:29:38PM +0000, Joakim Tjernlund wrote:
> On Thu, 2021-06-03 at 16:16 +0200, Andrew Lunn wrote:
> > On Thu, Jun 03, 2021 at 01:12:16PM +0000, Joakim Tjernlund wrote:
> > > Seems like old eth interface names cannot read name_assign_type:
> > > cat /sys/class/net/eth0/name_assign_type
> > > cat: /sys/class/net/eth0/name_assign_type: Invalid argument
> > 
> > Have you done a git bisect to figure out which change broke it?
> > 
> > The 5.10 kernel on my Debian desktop has this issue. So it is older
> > than that.
> > 
> >      Andrew
> 
> No, I have not used systemd before, also on 5.10.latest, I am setting up a new FW @home and decided to try out systemd.

Debian systemd does not seem to mind not being able to read
/sys/class/net/eth0/name_assign_type. At least my Ethernet interface
is working O.K.

   Andrew