netdev - [RESEND PATCH net-next] ipv6/multipath: remove flag NLM_F

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Date:	Fri,  2 Nov 2012 09:58:22 +0100
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	davem@...emloft.net
Cc:	shemminger@...tta.com, netdev@...r.kernel.org, joe@...ches.com,
	bernat@...fy.cx, eric.dumazet@...il.com, yoshfuji@...ux-ipv6.org,
	Nicolas Dichtel <nicolas.dichtel@...nd.com>
Subject: [RESEND PATCH net-next] ipv6/multipath: remove flag NLM_F_EXCL after the first nexthop

fib6_add_rt2node() will reject the nexthop if this flag is set, so
we perform the check only for the first nexthop.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
---
 net/ipv6/route.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c42650c..9c7b5d8 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2449,6 +2449,12 @@ beginning:
 				goto beginning;
 			}
 		}
+		/* Because each route is added like a single route we remove
+		 * this flag after the first nexthop (if there is a collision,
+		 * we have already fail to add the first nexthop:
+		 * fib6_add_rt2node() has reject it).
+		 */
+		cfg->fc_nlinfo.nlh->nlmsg_flags &= ~NLM_F_EXCL;
 		rtnh = rtnh_next(rtnh, &remaining);
 	}
 
-- 
1.7.12

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