netdev - Re: [PATCH net-next] team: prevent adding a device which is already a team device lower

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Message-Id: 
 <173590563675.2193961.1651665112855074849.git-patchwork-notify@kernel.org>
Date: Fri, 03 Jan 2025 12:00:36 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Octavian Purdila <tavip@...gle.com>
Cc: jiri@...nulli.us, andrew+netdev@...n.ch, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org,
 syzbot+3c47b5843403a45aef57@...kaller.appspotmail.com
Subject: Re: [PATCH net-next] team: prevent adding a device which is already a
 team device lower

Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@...emloft.net>:

On Mon, 30 Dec 2024 12:56:47 -0800 you wrote:
> Prevent adding a device which is already a team device lower,
> e.g. adding veth0 if vlan1 was already added and veth0 is a lower of
> vlan1.
> 
> This is not useful in practice and can lead to recursive locking:
> 
> $ ip link add veth0 type veth peer name veth1
> $ ip link set veth0 up
> $ ip link set veth1 up
> $ ip link add link veth0 name veth0.1 type vlan protocol 802.1Q id 1
> $ ip link add team0 type team
> $ ip link set veth0.1 down
> $ ip link set veth0.1 master team0
> team0: Port device veth0.1 added
> $ ip link set veth0 down
> $ ip link set veth0 master team0
> 
> [...]

Here is the summary with links:
  - [net-next] team: prevent adding a device which is already a team device lower
    https://git.kernel.org/netdev/net-next/c/3fff5da4ca21

You are awesome, thank you!
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