Subject: [PATCH net] bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers

From: Jay Vosburgh <[email-masked]>
Date: Thu, 16 Jun 2022 12:32:40 -0700

The bonding ARP monitor fails to decrement send_peer_notif, the
number of peer notifications (gratuitous ARP or ND) to be sent. This
results in a continuous series of notifications.

	Correct this by decrementing the counter for each notification.

Reported-by: Jonathan Toppins <[email-masked]>
Signed-off-by: Jay Vosburgh <[email-masked]>
Fixes: b0929915e035 ("bonding: Fix RTNL: assertion failed at net/core/rtnetlink.c for ab arp monitor")
Link: https://lore.kernel.org/netdev/[email-masked]/

---
 drivers/net/bonding/bond_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index f85372adf042..6ba4c83fe5fc 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3684,9 +3684,11 @@ static void bond_activebackup_arp_mon(struct bonding *bond)
 		if (!rtnl_trylock())
 			return;
 
-		if (should_notify_peers)
+		if (should_notify_peers) {
+			bond->send_peer_notif--;
 			call_netdevice_notifiers(NETDEV_NOTIFY_PEERS,
 						 bond->dev);
+		}
 		if (should_notify_rtnl) {
 			bond_slave_state_notify(bond);
 			bond_slave_link_notify(bond);
-- 
2.29.GIT