From 426c87caa2b4578b43cd3f689f02c65b743b2559 Mon Sep 17 00:00:00 2001
From: David Ahern <dsa@cumulusnetworks.com>
Date: Thu, 13 Apr 2017 10:57:15 -0600
Subject: [PATCH] net: vrf: Fix setting NLM_F_EXCL flag when adding l3mdev rule

commit 426c87caa2b4578b43cd3f689f02c65b743b2559 upstream.

Only need 1 l3mdev FIB rule. Fix setting NLM_F_EXCL in the nlmsghdr.

Fixes: 1aa6c4f6b8cd8 ("net: vrf: Add l3mdev rules on first device create")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index d6988db1930d..7d909c8183e9 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -1128,7 +1128,7 @@ static int vrf_fib_rule(const struct net_device *dev, __u8 family, bool add_it)
 		goto nla_put_failure;
 
 	/* rule only needs to appear once */
-	nlh->nlmsg_flags &= NLM_F_EXCL;
+	nlh->nlmsg_flags |= NLM_F_EXCL;
 
 	frh = nlmsg_data(nlh);
 	memset(frh, 0, sizeof(*frh));
-- 
2.12.0