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linux/drivers/net/bonding
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Hangbin Liu 4cf224c45f bonding: fix incorrect MAC address setting to receive NS messages 
[ Upstream commit 0c5e145a35 ]

When validation on the backup slave is enabled, we need to validate the
Neighbor Solicitation (NS) messages received on the backup slave. To
receive these messages, the correct destination MAC address must be added
to the slave. However, the target in bonding is a unicast address, which
we cannot use directly. Instead, we should first convert it to a
Solicited-Node Multicast Address and then derive the corresponding MAC
address.

Fix the incorrect MAC address setting on both slave_set_ns_maddr() and
slave_set_ns_maddrs(). Since the two function names are similar. Add
some description for the functions. Also only use one mac_addr variable
in slave_set_ns_maddr() to save some code and logic.

Fixes: 8eb36164d1 ("bonding: add ns target multicast address to slave device")
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250306023923.38777-2-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-03-22 12:54:13 -07:00
..
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: Fix feature propagation of NETIF_F_GSO_ENCAP_ALL 2024-12-19 18:13:19 +01:00
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