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-rw-r--r--include/net/route.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/route.h b/include/net/route.h
index 3782cddd1383..b3962e249e14 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -191,7 +191,8 @@ static inline int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 s
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);
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