ipv6: move ip6_local_out into core kernel

It will be used the vxlan kernel module.
Signed-off-by: NCong Wang <amwang@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/ip6_output.c

@@ -56,31 +56,6 @@
 #include <net/checksum.h>
 #include <linux/mroute6.h>
 
-int __ip6_local_out(struct sk_buff *skb)
-{
-	int len;
-
-	len = skb->len - sizeof(struct ipv6hdr);
-	if (len > IPV6_MAXPLEN)
-		len = 0;
-	ipv6_hdr(skb)->payload_len = htons(len);
-
-	return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
-		       skb_dst(skb)->dev, dst_output);
-}
-
-int ip6_local_out(struct sk_buff *skb)
-{
-	int err;
-
-	err = __ip6_local_out(skb);
-	if (likely(err == 1))
-		err = dst_output(skb);
-
-	return err;
-}
-EXPORT_SYMBOL_GPL(ip6_local_out);
-
 static int ip6_finish_output2(struct sk_buff *skb)
 {
 	struct dst_entry *dst = skb_dst(skb);

net/ipv6/output_core.c

@@ -97,3 +97,29 @@ int ip6_dst_hoplimit(struct dst_entry *dst)
 }
 EXPORT_SYMBOL(ip6_dst_hoplimit);
 #endif
+
+int __ip6_local_out(struct sk_buff *skb)
+{
+	int len;
+
+	len = skb->len - sizeof(struct ipv6hdr);
+	if (len > IPV6_MAXPLEN)
+		len = 0;
+	ipv6_hdr(skb)->payload_len = htons(len);
+
+	return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
+		       skb_dst(skb)->dev, dst_output);
+}
+EXPORT_SYMBOL_GPL(__ip6_local_out);
+
+int ip6_local_out(struct sk_buff *skb)
+{
+	int err;
+
+	err = __ip6_local_out(skb);
+	if (likely(err == 1))
+		err = dst_output(skb);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(ip6_local_out);