Subject: Re: [PATCH v3 net-next RFC] Generic XDP

From: Stephen Hemminger <[email-masked]>
Date: Wed, 12 Apr 2017 14:30:37 -0700

On Wed, 12 Apr 2017 14:54:15 -0400 (EDT)
David Miller <[email-masked]> wrote:

> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index b0aa089..071a58b 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -1891,9 +1891,17 @@ struct net_device {
>  	struct lock_class_key	*qdisc_tx_busylock;
>  	struct lock_class_key	*qdisc_running_key;
>  	bool			proto_down;
> +	struct bpf_prog __rcu	*xdp_prog;

It would be good if all devices could reuse this for the xdp_prog pointer.
It would allow for could be used for introspection utility functions in future.