inet: constify ip headers and in6_addr
Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers
where possible, to make code intention more obvious.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/route.h b/include/net/route.h
index 3782cdd..b3962e2 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -191,7 +191,8 @@
return ip_route_input_common(skb, dst, src, tos, devin, true);
}
-extern unsigned short ip_rt_frag_needed(struct net *net, struct iphdr *iph, unsigned short new_mtu, struct net_device *dev);
+extern unsigned short ip_rt_frag_needed(struct net *net, const struct iphdr *iph,
+ unsigned short new_mtu, struct net_device *dev);
extern void ip_rt_send_redirect(struct sk_buff *skb);
extern unsigned inet_addr_type(struct net *net, __be32 addr);