diff options
| author | Hangbin Liu <liuhangbin@gmail.com> | 2025-02-25 03:39:14 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-29 11:02:36 +0200 |
| commit | e39fd41117bd94b2e992f857cd77cf07972566e6 (patch) | |
| tree | c07d7089aa2a3e6e025fb627c93cbbac4c490096 | |
| parent | f872f7aaa4cac5f4c1dcae4a0489374735ff1048 (diff) | |
bonding: report duplicate MAC address in all situations
[ Upstream commit 28d68d396a1cd21591e8c6d74afbde33a7ea107e ]
Normally, a bond uses the MAC address of the first added slave as the bond’s
MAC address. And the bond will set active slave’s MAC address to bond’s
address if fail_over_mac is set to none (0) or follow (2).
When the first slave is removed, the bond will still use the removed slave’s
MAC address, which can lead to a duplicate MAC address and potentially cause
issues with the switch. To avoid confusion, let's warn the user in all
situations, including when fail_over_mac is set to 2 or not in active-backup
mode.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20250225033914.18617-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 4d73abae503d..4d2e30f4ee25 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2542,7 +2542,7 @@ static int __bond_release_one(struct net_device *bond_dev, RCU_INIT_POINTER(bond->current_arp_slave, NULL); - if (!all && (!bond->params.fail_over_mac || + if (!all && (bond->params.fail_over_mac != BOND_FOM_ACTIVE || BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP)) { if (ether_addr_equal_64bits(bond_dev->dev_addr, slave->perm_hwaddr) && bond_has_slaves(bond)) |