Re: [PATCH net v2] macvlan: require lower-netns admin for shared port settings

From: patchwork-bot+netdevbpf

Date: Thu Aug 06 2026 - 11:59:43 EST


Hello:

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

On Sun, 2 Aug 2026 15:01:37 +0200 you wrote:
> struct macvlan_port is per lower device and is shared by every macvlan
> upper on it, including uppers that live in other network namespaces.
> Two of its fields are settable over rtnetlink by any upper on the port:
> port->bc_cutoff, written by IFLA_MACVLAN_BC_CUTOFF, and
> port->bc_queue_len_used, recomputed from IFLA_MACVLAN_BC_QUEUE_LEN.
> (port->flags and port->perm_addr are also rtnetlink-settable, but only
> in passthru mode, which requires port->count == 0 and so cannot be
> reached from a second upper.)
>
> [...]

Here is the summary with links:
- [net,v2] macvlan: require lower-netns admin for shared port settings
https://git.kernel.org/netdev/net-next/c/5b782a811e73

You are awesome, thank you!
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