On Thu, Jul 28, 2022 at 12:11:12AM +0300, Vladimir Oltean wrote: > The 'label' property of a port was optional, you've made it mandatory by accident. > It is used only by DSA drivers that register using platform data. I didn't mean to say exactly this, the second phrase was an addition through which I tried to make it clear that the "cpu" label *is* used, but only by the drivers using platform data. With OF it's not, neither that nor label = "dsa". We have other means of recognizing a CPU or DSA port, by the 'ethernet' and/or 'dsa' phandles. Additionally, the label is optional even for user port. One can have udev rules that assign names to Ethernet ports. I think that is even encouraged; some of the things in DSA predate the establishment of some best practices.
