Re: [PATCH v3 2/3] net: dsa: use NET_NAME_PREDICTABLE for user ports with name given in DT

[Florian Fainelli]

On 11/16/2022 2:52 AM, Rasmus Villemoes wrote:
> When a user port has a label in device tree, the corresponding
> netdevice is, to quote include/uapi/linux/netdevice.h, "predictably
> named by the kernel". This is also explicitly one of the intended use
> cases for NET_NAME_PREDICTABLE, quoting 685343fc3ba6 ("net: add
> name_assign_type netdev attribute"):
>
>    NET_NAME_PREDICTABLE:
>      The ifname has been assigned by the kernel in a predictable way
>      [...] Examples include [...] and names deduced from hardware
>      properties (including being given explicitly by the firmware).
>
> Expose that information properly for the benefit of userspace tools
> that make decisions based on the name_assign_type attribute,
> e.g. a systemd-udev rule with "kernel" in NamePolicy.
>
> Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Florian Fainelli <f.faineli@xxxxxxxxx>
--
Florian