netlink based networking for inter-process communication in a significantly
easier way::
- int cn_add_callback(struct cb_id *id, char *name, void (*callback) (struct cn_msg *, struct netlink_skb_parms *));
+ int cn_add_callback(const struct cb_id *id, char *name, void (*callback) (struct cn_msg *, struct netlink_skb_parms *));
void cn_netlink_send_mult(struct cn_msg *msg, u16 len, u32 portid, u32 __group, int gfp_mask);
void cn_netlink_send(struct cn_msg *msg, u32 portid, u32 __group, int gfp_mask);