Re: [PATCH net] netlink: Do not call the unbind callback with the table locked

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Mon,  2 Nov 2026 12:09:29 +0000 you wrote:
> When netlink_bind() fails to insert the socket, it calls
> netlink_undo_bind() with the table locked. genl_unbind() then takes
> cb_lock, while genl_unregister_family() and genl_register_family() take
> cb_lock for writing and then wait in netlink_table_grab() for the table
> users to go away:
> 
>   netlink_bind()                 genl_unregister_family()
>     netlink_lock_table()           down_write(&cb_lock)
>     netlink_insert() fails
>     netlink_undo_bind()            netlink_table_grab()
>       genl_unbind()                  waits for nl_table_users == 0
>         down_read(&cb_lock)
> 
> [...]

Here is the summary with links:
  - [net] netlink: Do not call the unbind callback with the table locked
    https://git.kernel.org/netdev/net/c/a36b9e205cb3

You are awesome, thank you!
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