From 2d7202bfdd28687073f5efef8d2f51bbab0af867 Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Tue, 22 Aug 2006 00:01:27 -0700
Subject: [IPv6] route: Convert FIB6 dumping to use new netlink api

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/rtnetlink.c | 31 ++++++++++++++++++-------------
 1 file changed, 18 insertions(+), 13 deletions(-)

(limited to 'net/core/rtnetlink.c')

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index dfc58269240a..eeff0b23e944 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -188,22 +188,27 @@ void rtnl_set_sk_err(u32 group, int error)
 
 int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
 {
-	struct rtattr *mx = (struct rtattr*)skb->tail;
-	int i;
+	struct nlattr *mx;
+	int i, valid = 0;
+
+	mx = nla_nest_start(skb, RTA_METRICS);
+	if (mx == NULL)
+		return -ENOBUFS;
 
-	RTA_PUT(skb, RTA_METRICS, 0, NULL);
-	for (i=0; i<RTAX_MAX; i++) {
-		if (metrics[i])
-			RTA_PUT(skb, i+1, sizeof(u32), metrics+i);
+	for (i = 0; i < RTAX_MAX; i++) {
+		if (metrics[i]) {
+			valid++;
+			NLA_PUT_U32(skb, i+1, metrics[i]);
+		}
 	}
-	mx->rta_len = skb->tail - (u8*)mx;
-	if (mx->rta_len == RTA_LENGTH(0))
-		skb_trim(skb, (u8*)mx - skb->data);
-	return 0;
 
-rtattr_failure:
-	skb_trim(skb, (u8*)mx - skb->data);
-	return -1;
+	if (!valid)
+		goto nla_put_failure;
+
+	return nla_nest_end(skb, mx);
+
+nla_put_failure:
+	return nla_nest_cancel(skb, mx);
 }
 
 
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