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-rw-r--r--include/linux/neighbour.h1
-rw-r--r--net/core/neighbour.c6
2 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/neighbour.h b/include/linux/neighbour.h
index 8730d5dae1bc..12c9de138451 100644
--- a/include/linux/neighbour.h
+++ b/include/linux/neighbour.h
@@ -31,6 +31,7 @@ enum
* Neighbor Cache Entry Flags
*/
+#define NTF_USE 0x01
#define NTF_PROXY 0x08 /* == ATF_PUBL */
#define NTF_ROUTER 0x80
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 417b6d739fb7..a1cbce7fdae5 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1654,7 +1654,11 @@ static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
flags &= ~NEIGH_UPDATE_F_OVERRIDE;
}
- err = neigh_update(neigh, lladdr, ndm->ndm_state, flags);
+ if (ndm->ndm_flags & NTF_USE) {
+ neigh_event_send(neigh, NULL);
+ err = 0;
+ } else
+ err = neigh_update(neigh, lladdr, ndm->ndm_state, flags);
neigh_release(neigh);
goto out_dev_put;
}