On 10/16/25 15:51, Tonghao Zhang wrote:

This patch fixes ce7a381697cb ("net: bonding: add broadcast_neighbor option for 802.3ad"). Before this commit, on the broadcast mode, all devices were traversed using the bond_for_each_slave_rcu. This patch supports traversing devices by using all_slaves. Therefore, we need to update the slave array when enslave or release slave.

Fixes: ce7a381697cb ("net: bonding: add broadcast_neighbor option for 802.3ad") Cc: Jay Vosburgh jv@jvosburgh.net Cc: "David S. Miller" davem@davemloft.net Cc: Eric Dumazet edumazet@google.com Cc: Jakub Kicinski kuba@kernel.org Cc: Paolo Abeni pabeni@redhat.com Cc: Simon Horman horms@kernel.org Cc: Jonathan Corbet corbet@lwn.net Cc: Andrew Lunn andrew+netdev@lunn.ch Cc: Nikolay Aleksandrov razor@blackwall.org Cc: Hangbin Liu liuhangbin@gmail.com Cc: Jiri Slaby jirislaby@kernel.org Cc: stable@vger.kernel.org Reported-by: Jiri Slaby jirislaby@kernel.org Tested-by: Jiri Slaby jirislaby@kernel.org Link: https://lore.kernel.org/all/a97e6e1e-81bc-4a79-8352-9e4794b0d2ca@kernel.org/ Signed-off-by: Tonghao Zhang tonghao@bamaicloud.com Reviewed-by: Hangbin Liu liuhangbin@gmail.com

---

v2:

• fix the typo in the comments, salve -> slave
• add the target repo in the subject

---

drivers/net/bonding/bond_main.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 17c7542be6a5..2d6883296e32 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2384,7 +2384,9 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, unblock_netpoll_tx(); }

• if (bond_mode_can_use_xmit_hash(bond))

• /* broadcast mode uses the all_slaves to loop through slaves. */
• if (bond_mode_can_use_xmit_hash(bond) ||

•    BOND_MODE(bond) == BOND_MODE_BROADCAST)
  

  bond_update_slave_arr(bond, NULL);

if (!slave_dev->netdev_ops->ndo_bpf || @@ -2560,7 +2562,8 @@ static int __bond_release_one(struct net_device *bond_dev, bond_upper_dev_unlink(bond, slave);

• if (bond_mode_can_use_xmit_hash(bond))

• if (bond_mode_can_use_xmit_hash(bond) ||

•    BOND_MODE(bond) == BOND_MODE_BROADCAST)
  

  bond_update_slave_arr(bond, slave);

slave_info(bond_dev, slave_dev, "Releasing %s interface\n",

Reviewed-by: Nikolay Aleksandrov razor@blackwall.org