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SubjectRe: [PATCH net-next v6 01/15] rtnetlink: provide permanent hardware address in RTM_NEWLINK
Tue, Jul 02, 2019 at 01:49:44PM CEST, wrote:
>Permanent hardware address of a network device was traditionally provided
>via ethtool ioctl interface but as Jiri Pirko pointed out in a review of
>ethtool netlink interface, rtnetlink is much more suitable for it so let's
>add it to the RTM_NEWLINK message.
>Add IFLA_PERM_ADDRESS attribute to RTM_NEWLINK messages unless the
>permanent address is all zeros (i.e. device driver did not fill it). As
>permanent address is not modifiable, reject userspace requests containing
>Note: we already provide permanent hardware address for bond slaves;
>unfortunately we cannot drop that attribute for backward compatibility
>v5 -> v6: only add the attribute if permanent address is not zero
>Signed-off-by: Michal Kubecek <>

Acked-by: Jiri Pirko <>

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