From: Jay Vosburgh <jv@jvosburgh•net>
To: Tonghao Zhang <tonghao@bamaicloud•com>
Cc: netdev@vger•kernel.org, "David S. Miller" <davem@davemloft•net>,
Eric Dumazet <edumazet@google•com>,
Jakub Kicinski <kuba@kernel•org>, Paolo Abeni <pabeni@redhat•com>,
Simon Horman <horms@kernel•org>, Jonathan Corbet <corbet@lwn•net>,
Andrew Lunn <andrew+netdev@lunn•ch>,
Nikolay Aleksandrov <razor@blackwall•org>,
Hangbin Liu <liuhangbin@gmail•com>,
Jiri Slaby <jirislaby@kernel•org>,
stable@vger•kernel.org
Subject: Re: [PATCH net v2] net: bonding: update the slave array for broadcast mode
Date: Fri, 17 Oct 2025 10:14:56 -0700 [thread overview]
Message-ID: <775230.1760721296@famine> (raw)
In-Reply-To: <20251016125136.16568-1-tonghao@bamaicloud.com>
Tonghao Zhang <tonghao@bamaicloud•com> 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>
Acked-by: Jay Vosburgh <jv@jvosburgh•net>
>---
>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",
>--
>2.34.1
>
next prev parent reply other threads:[~2025-10-17 17:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-16 12:51 [PATCH net v2] net: bonding: update the slave array for broadcast mode Tonghao Zhang
2025-10-16 12:54 ` Nikolay Aleksandrov
2025-10-17 17:14 ` Jay Vosburgh [this message]
2025-10-18 0:00 ` patchwork-bot+netdevbpf
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