net: make neigh_ops constant

These tables are never modified at runtime. Move to read-only
section.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/arp.h b/include/net/arp.h
index c236270ec95e..716f43c5c98e 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -26,6 +26,6 @@ extern struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
                                   const unsigned char *target_hw);
 extern void arp_xmit(struct sk_buff *skb);
 
-extern struct neigh_ops arp_broken_ops;
+extern const struct neigh_ops arp_broken_ops;
 
 #endif  /* _ARP_H */