Subject: Re: [PATCH net-next] rtnetlink: Allow setting IFLA_PERM_ADDRESS at device creation time

From: Jakub Kicinski <[email-masked]>
Date: Thu, 13 Feb 2025 07:40:39 -0800

On Thu, 13 Feb 2025 14:45:22 +0100 Toke Høiland-Jørgensen wrote:
> Eric suggested[0] allowing user-settable values for dev->perm_addr at
> device creation time, instead of mucking about with netdevsim to get a
> virtual device with a permanent address set.

I vote no. Complicating the core so that its easier for someone 
to write a unit test is the wrong engineering trade off.
Use a VM or netdevsim, that's what they are for.