2 files changed, 9 insertions, 6 deletions

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index aa19d86937af..91592fceeaad 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1180,6 +1180,12 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
                 lladdr = neigh->ha;
         }
 
+        /* Update confirmed timestamp for neighbour entry after we
+         * received ARP packet even if it doesn't change IP to MAC binding.
+         */
+        if (new & NUD_CONNECTED)
+                neigh->confirmed = jiffies;
+
         /* If entry was valid and address is not changed,
            do not change entry state, if new one is STALE.
          */
@@ -1201,15 +1207,12 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
                 }
         }
 
-        /* Update timestamps only once we know we will make a change to the
+        /* Update timestamp only once we know we will make a change to the
          * neighbour entry. Otherwise we risk to move the locktime window with
          * noop updates and ignore relevant ARP updates.
          */
-        if (new != old || lladdr != neigh->ha) {
-                if (new & NUD_CONNECTED)
-                        neigh->confirmed = jiffies;
+        if (new != old || lladdr != neigh->ha)
                 neigh->updated = jiffies;
-        }
 
         if (new != old) {
                 neigh_del_timer(neigh);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 60c928894a78..63ce2283a456 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2810,7 +2810,7 @@ int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
         }
 
         if (dev->rtnl_link_state == RTNL_LINK_INITIALIZED) {
-                __dev_notify_flags(dev, old_flags, 0U);
+                __dev_notify_flags(dev, old_flags, (old_flags ^ dev->flags));
         } else {
                 dev->rtnl_link_state = RTNL_LINK_INITIALIZED;
                 __dev_notify_flags(dev, old_flags, ~0U);