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vxlan: Notify for each remote of a removed FDB entry

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When notifications are sent about FDB activity, and an FDB entry with
several remotes is removed, the notification is sent only for the first
destination. That makes it impossible to distinguish between the case
where only this first remote is removed, and the one where the FDB entry
is removed as a whole.

Therefore send one notification for each remote of a removed FDB entry.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2018-10-17 08:53:27 +00:00 committed by David S. Miller
parent 0efe117333
commit 045a5a9914
1 changed files with 4 additions and 1 deletions
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5
drivers/net/vxlan.c
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@ -843,12 +843,15 @@ static void vxlan_fdb_free(struct rcu_head *head)
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) bool do_notify)
{ {
struct vxlan_rdst *rd;
netdev_dbg(vxlan->dev, netdev_dbg(vxlan->dev,
"delete %pM\n", f->eth_addr); "delete %pM\n", f->eth_addr);
--vxlan->addrcnt; --vxlan->addrcnt;
if (do_notify) if (do_notify)
vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f), RTM_DELNEIGH); list_for_each_entry(rd, &f->remotes, list)
vxlan_fdb_notify(vxlan, f, rd, RTM_DELNEIGH);
hlist_del_rcu(&f->hlist); hlist_del_rcu(&f->hlist);
call_rcu(&f->rcu, vxlan_fdb_free); call_rcu(&f->rcu, vxlan_fdb_free);