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authorDavid S. Miller <davem@davemloft.net>2012-06-10 11:04:12 +0400
committerDavid S. Miller <davem@davemloft.net>2012-06-11 13:08:59 +0400
commit46517008e1168dc926cf2c47d529efc07eca85c0 (patch)
tree98e9cf1917c9b8f1c6c2d8121746fd4f8e414f45 /include/net/route.h
parent97bab73f987e2781129cd6f4b6379bf44d808cc6 (diff)
downloadlinux-46517008e1168dc926cf2c47d529efc07eca85c0.tar.xz
ipv4: Kill ip_rt_frag_needed().
There is zero point to this function. It's only real substance is to perform an extremely outdated BSD4.2 ICMP check, which we can safely remove. If you really have a MTU limited link being routed by a BSD4.2 derived system, here's a nickel go buy yourself a real router. The other actions of ip_rt_frag_needed(), checking and conditionally updating the peer, are done by the per-protocol handlers of the ICMP event. TCP, UDP, et al. have a handler which will receive this event and transmit it back into the associated route via dst_ops->update_pmtu(). This simplification is important, because it eliminates the one place where we do not have a proper route context in which to make an inetpeer lookup. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/route.h')
-rw-r--r--include/net/route.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/include/net/route.h b/include/net/route.h
index 6340c37677fc..cc693a5bb20d 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -215,8 +215,6 @@ 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, const struct iphdr *iph,
- unsigned short new_mtu, struct net_device *dev);
extern void ip_rt_send_redirect(struct sk_buff *skb);
extern unsigned int inet_addr_type(struct net *net, __be32 addr);