[IPV4]: Kill ip_send, use dst_output instead.

include/net/ip.h

@@ -162,14 +162,6 @@ extern int sysctl_local_port_range[2];
 extern int sysctl_ip_default_ttl;
 
 #ifdef CONFIG_INET
-static inline int ip_send(struct sk_buff *skb)
-{
-	if (skb->len > skb->dst->pmtu)
-		return ip_fragment(skb, ip_finish_output);
-	else
-		return ip_finish_output(skb);
-}
-
 /* The function in 2.2 was invalid, producing wrong result for
  * check=0xFEFF. It was noticed by Arthur Skawina _year_ ago. --ANK(000625) */
 static inline

include/net/ipip.h

@@ -34,7 +34,7 @@ struct ip_tunnel
 	ip_select_ident(iph, &rt->u.dst, NULL);				\
 	ip_send_check(iph);						\
 									\
-	err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev, do_ip_send); \
+	err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev, dst_output);\
 	if (err == NET_XMIT_SUCCESS || err == NET_XMIT_CN) {		\
 		stats->tx_bytes += pkt_len;				\
 		stats->tx_packets++;					\

net/ipv4/ip_forward.c

@@ -47,27 +47,10 @@ static inline int ip_forward_finish(struct sk_buff *skb)
 
 	IP_INC_STATS_BH(IpForwDatagrams);
 
-	if (opt->optlen == 0) {
-#ifdef CONFIG_NET_FASTROUTE
-		struct rtable *rt = (struct rtable*)skb->dst;
+	if (unlikely(opt->optlen))
+		ip_forward_options(skb);
 
-		if (rt->rt_flags&RTCF_FAST && !netdev_fastroute_obstacles) {
-			struct dst_entry *old_dst;
-			unsigned h = ((*(u8*)&rt->fl.fl4_dst)^(*(u8*)&rt->fl.fl4_src))&NETDEV_FASTROUTE_HMASK;
-
-			write_lock_irq(&skb->dev->fastpath_lock);
-			old_dst = skb->dev->fastpath[h];
-			skb->dev->fastpath[h] = dst_clone(&rt->u.dst);
-			write_unlock_irq(&skb->dev->fastpath_lock);
-
-			dst_release(old_dst);
-		}
-#endif
-		return (ip_send(skb));
-	}
-
-	ip_forward_options(skb);
-	return (ip_send(skb));
+	return dst_output(skb);
 }
 
 int ip_forward(struct sk_buff *skb)

net/ipv4/ip_gre.c

@@ -675,12 +675,6 @@ int ipgre_rcv(struct sk_buff *skb)
 	return(0);
 }
 
-/* Need this wrapper because NF_HOOK takes the function address */
-static inline int do_ip_send(struct sk_buff *skb)
-{
-	return ip_send(skb);
-}
-
 static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = (struct ip_tunnel*)dev->priv;

net/ipv4/ipip.c

@@ -521,12 +521,6 @@ int ipip_rcv(struct sk_buff *skb)
 	return 0;
 }
 
-/* Need this wrapper because NF_HOOK takes the function address */
-static inline int do_ip_send(struct sk_buff *skb)
-{
-	return ip_send(skb);
-}
-
 /*
  *	This function assumes it is being called from dev_queue_xmit()
  *	and that skb is filled properly by that function.

net/ipv6/sit.c

@@ -423,13 +423,6 @@ static int ipip6_rcv(struct sk_buff *skb)
 	return 0;
 }
 
-/* Need this wrapper because NF_HOOK takes the function address */
-static inline int do_ip_send(struct sk_buff *skb)
-{
-	return ip_send(skb);
-}
-
-
 /* Returns the embedded IPv4 address if the IPv6 address
    comes from 6to4 (draft-ietf-ngtrans-6to4-04) addr space */