[NET]: Move hardware header operations out of netdevice.
Since hardware header operations are part of the protocol class
not the device instance, make them into a separate object and
save memory.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 99a4e36..4e3cd93 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -363,8 +363,11 @@
extern int ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
/* ax25_ip.c */
-extern int ax25_hard_header(struct sk_buff *, struct net_device *, unsigned short, void *, void *, unsigned int);
+extern int ax25_hard_header(struct sk_buff *, struct net_device *,
+ unsigned short, const void *,
+ const void *, unsigned int);
extern int ax25_rebuild_header(struct sk_buff *);
+extern const struct header_ops ax25_header_ops;
/* ax25_out.c */
extern ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *, ax25_digi *, struct net_device *);