vxlan: make netlink notify in vxlan_fdb_destroy optional

Add a new option do_notify to vxlan_fdb_destroy to make
sending netlink notify optional. Used by a later patch.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 6 deletions

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index c8d5bfffadef..a7e9a4dc0636 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -774,13 +774,15 @@ static void vxlan_fdb_free(struct rcu_head *head)
         kfree(f);
 }
 
-static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f)
+static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f,
+                              bool do_notify)
 {
         netdev_dbg(vxlan->dev,
                     "delete %pM\n", f->eth_addr);
 
         --vxlan->addrcnt;
-        vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f), RTM_DELNEIGH);
+        if (do_notify)
+                vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f), RTM_DELNEIGH);
 
         hlist_del_rcu(&f->hlist);
         call_rcu(&f->rcu, vxlan_fdb_free);
@@ -930,7 +932,7 @@ static int __vxlan_fdb_delete(struct vxlan_dev *vxlan,
                 goto out;
         }
 
-        vxlan_fdb_destroy(vxlan, f);
+        vxlan_fdb_destroy(vxlan, f, true);
 
 out:
         return 0;
@@ -2397,7 +2399,7 @@ static void vxlan_cleanup(struct timer_list *t)
                                            "garbage collect %pM\n",
                                            f->eth_addr);
                                 f->state = NUD_STALE;
-                                vxlan_fdb_destroy(vxlan, f);
+                                vxlan_fdb_destroy(vxlan, f, true);
                         } else if (time_before(timeout, next_timer))
                                 next_timer = timeout;
                 }
@@ -2448,7 +2450,7 @@ static void vxlan_fdb_delete_default(struct vxlan_dev *vxlan, __be32 vni)
         spin_lock_bh(&vxlan->hash_lock);
         f = __vxlan_find_mac(vxlan, all_zeros_mac, vni);
         if (f)
-                vxlan_fdb_destroy(vxlan, f);
+                vxlan_fdb_destroy(vxlan, f, true);
         spin_unlock_bh(&vxlan->hash_lock);
 }
 
@@ -2502,7 +2504,7 @@ static void vxlan_flush(struct vxlan_dev *vxlan, bool do_all)
                                 continue;
                         /* the all_zeros_mac entry is deleted at vxlan_uninit */
                         if (!is_zero_ether_addr(f->eth_addr))
-                                vxlan_fdb_destroy(vxlan, f);
+                                vxlan_fdb_destroy(vxlan, f, true);
                 }
         }
         spin_unlock_bh(&vxlan->hash_lock);