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linux/drivers/net/bonding
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Hangbin Liu e39fd41117 bonding: report duplicate MAC address in all situations 
[ Upstream commit 28d68d396a ]

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>
History 2025-05-29 11:02:36 +02:00
..
bond_3ad.c bonding: 802.3ad replace MAC_ADDRESS_EQUAL with __agg_has_partner 2024-02-27 18:18:31 -08:00
bond_alb.c bonding: return -ENOMEM instead of BUG in alb_upper_dev_walk 2023-11-21 12:06:50 +01:00
bond_debugfs.c bonding: remove redundant NULL check in debugfs function 2023-08-11 11:10:55 +01:00
bond_main.c bonding: report duplicate MAC address in all situations 2025-05-29 11:02:36 +02:00
bond_netlink.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bond_options.c bonding: fix incorrect MAC address setting to receive NS messages 2025-03-22 12:54:13 -07:00
bond_procfs.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bond_sysfs.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bond_sysfs_slave.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bonding_priv.h net: bonding: Add SPDX identifier to remaining files 2023-05-16 15:38:06 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00