ipv6: Log the explicit address that triggered DAD failure

If an interface has multiple addresses, the current message for DAD
failure isn't really helpful, so this patch adds the address itself to
the printk.

Signed-off-by: Jens Rosenboom <jens@mcbone.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 9eb68e92cc18..1ba42bd65577 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -955,8 +955,8 @@ static void ndisc_recv_na(struct sk_buff *skb)
                  */
                 if (skb->pkt_type != PACKET_LOOPBACK)
                         ND_PRINTK1(KERN_WARNING
-                           "ICMPv6 NA: someone advertises our address on %s!\n",
-                           ifp->idev->dev->name);
+                           "ICMPv6 NA: someone advertises our address %pI6 on %s!\n",
+                           &ifp->addr, ifp->idev->dev->name);
                 in6_ifa_put(ifp);
                 return;
         }