5 files changed, 12 insertions, 49 deletions

diff --git a/net/core/dst.c b/net/core/dst.c
index 03daead3592..f538061f4b9 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -153,11 +153,12 @@ loop:
 #endif
 }
 
-static int dst_discard(struct sk_buff *skb)
+int dst_discard(struct sk_buff *skb)
 {
 	kfree_skb(skb);
 	return 0;
 }
+EXPORT_SYMBOL(dst_discard);
 
 void * dst_alloc(struct dst_ops * ops)
 {
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 23aa3556e56..2a5bb0714c7 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -765,17 +765,6 @@ drop:
 }
 
 /*
- * Drop packet. This is used for endnodes and for
- * when we should not be forwarding packets from
- * this dest.
- */
-static int dn_blackhole(struct sk_buff *skb)
-{
-	kfree_skb(skb);
-	return NET_RX_DROP;
-}
-
-/*
  * Used to catch bugs. This should never normally get
  * called.
  */
@@ -1396,7 +1385,7 @@ make_route:
 		default:
 		case RTN_UNREACHABLE:
 		case RTN_BLACKHOLE:
-			rt->u.dst.input = dn_blackhole;
+			rt->u.dst.input = dst_discard;
 	}
 	rt->rt_flags = flags;
 	if (rt->u.dst.dev)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 49e008568dd..137b8eb666b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -92,6 +92,7 @@
 #include <linux/jhash.h>
 #include <linux/rcupdate.h>
 #include <linux/times.h>
+#include <net/dst.h>
 #include <net/net_namespace.h>
 #include <net/protocol.h>
 #include <net/ip.h>
@@ -2357,12 +2358,6 @@ static struct dst_ops ipv4_dst_blackhole_ops = {
 };
 
 
-static int ipv4_blackhole_output(struct sk_buff *skb)
-{
-	kfree_skb(skb);
-	return 0;
-}
-
 static int ipv4_dst_blackhole(struct rtable **rp, struct flowi *flp, struct sock *sk)
 {
 	struct rtable *ort = *rp;
@@ -2374,8 +2369,8 @@ static int ipv4_dst_blackhole(struct rtable **rp, struct flowi *flp, struct sock
 
 		atomic_set(&new->__refcnt, 1);
 		new->__use = 1;
-		new->input = ipv4_blackhole_output;
-		new->output = ipv4_blackhole_output;
+		new->input = dst_discard;
+		new->output = dst_discard;
 		memcpy(new->metrics, ort->u.dst.metrics, RTAX_MAX*sizeof(u32));
 
 		new->dev = ort->u.dst.dev;
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 1e89efd38a0..cee06b1655c 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -32,6 +32,7 @@
 #include <linux/in6.h>
 #include <linux/icmpv6.h>
 
+#include <net/dst.h>
 #include <net/sock.h>
 #include <net/snmp.h>
 
@@ -318,18 +319,8 @@ void __init ipv6_destopt_init(void)
 		printk(KERN_ERR "ipv6_destopt_init: Could not register protocol\n");
 }
 
-/********************************
-  NONE header. No data in packet.
- ********************************/
-
-static int ipv6_nodata_rcv(struct sk_buff *skb)
-{
-	kfree_skb(skb);
-	return 0;
-}
-
 static struct inet6_protocol nodata_protocol = {
-	.handler	=	ipv6_nodata_rcv,
+	.handler	=	dst_discard,
 	.flags		=	INET6_PROTO_NOPOLICY,
 };
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 20083e0d399..ac70e2d3b10 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -152,7 +152,6 @@ struct rt6_info ip6_null_entry = {
 
 static int ip6_pkt_prohibit(struct sk_buff *skb);
 static int ip6_pkt_prohibit_out(struct sk_buff *skb);
-static int ip6_pkt_blk_hole(struct sk_buff *skb);
 
 struct rt6_info ip6_prohibit_entry = {
 	.u = {
@@ -181,8 +180,8 @@ struct rt6_info ip6_blk_hole_entry = {
 			.obsolete	= -1,
 			.error		= -EINVAL,
 			.metrics	= { [RTAX_HOPLIMIT - 1] = 255, },
-			.input		= ip6_pkt_blk_hole,
-			.output		= ip6_pkt_blk_hole,
+			.input		= dst_discard,
+			.output		= dst_discard,
 			.ops		= &ip6_dst_ops,
 			.path		= (struct dst_entry*)&ip6_blk_hole_entry,
 		}
@@ -782,12 +781,6 @@ struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl)
 
 EXPORT_SYMBOL(ip6_route_output);
 
-static int ip6_blackhole_output(struct sk_buff *skb)
-{
-	kfree_skb(skb);
-	return 0;
-}
-
 int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl)
 {
 	struct rt6_info *ort = (struct rt6_info *) *dstp;
@@ -800,8 +793,8 @@ int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl
 
 		atomic_set(&new->__refcnt, 1);
 		new->__use = 1;
-		new->input = ip6_blackhole_output;
-		new->output = ip6_blackhole_output;
+		new->input = dst_discard;
+		new->output = dst_discard;
 
 		memcpy(new->metrics, ort->u.dst.metrics, RTAX_MAX*sizeof(u32));
 		new->dev = ort->u.dst.dev;
@@ -1811,12 +1804,6 @@ static int ip6_pkt_prohibit_out(struct sk_buff *skb)
 	return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES);
 }
 
-static int ip6_pkt_blk_hole(struct sk_buff *skb)
-{
-	kfree_skb(skb);
-	return 0;
-}
-
 #endif
 
 /*