comment on [NET]: Delete support for old-style protocols, no longer necessary.

[Joe Perches <joe@xxxxxxxxxxx>]

How about

netdevice.h

struct sock;

struct packet_type {
        unsigned short          type;   /* This is really htons(ether_type).    
*/
        struct net_device               *dev;   /* NULL is wildcarded here      
        */
        int                     (*func) (struct sk_buff *, struct net_device *,
                                         struct packet_type *);
-       void                    *af_packet_priv;
+       struct sock             *sk;    /* appropriate comment: socket copy? */
        struct list_head        list;
 };

and s/af_packet_priv/sk/g in the rest of the files?