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bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers

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[ Upstream commit 7a9214f3d8 ]

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 <jtoppins@redhat.com>
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Fixes: b0929915e0 ("bonding: Fix RTNL: assertion failed at net/core/rtnetlink.c for ab arp monitor")
Link: https://lore.kernel.org/netdev/b2fd4147-8f50-bebd-963a-1a3e8d1d9715@redhat.com/
Tested-by: Jonathan Toppins <jtoppins@redhat.com>
Reviewed-by: Jonathan Toppins <jtoppins@redhat.com>
Link: https://lore.kernel.org/r/9400.1655407960@famine
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jay Vosburgh
2022-06-16 12:32:40 -07:00
committed by Greg Kroah-Hartman
parent c12a2c9b1b
commit 2e3216b929
1 changed files with 3 additions and 1 deletions
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4
drivers/net/bonding/bond_main.c
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@@ -3368,9 +3368,11 @@ re_arm:
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);