netdev - Re: [PATCH iproute2-next] bridge: mcast: add mcast_active_v4 / mcast_active

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Message-ID: <20260208161345.GO154003@shredder>
Date: Sun, 8 Feb 2026 18:13:45 +0200
From: Ido Schimmel <idosch@...dia.com>
To: Linus Lüssing <linus.luessing@...3.blue>
Cc: netdev@...r.kernel.org, bridge@...ts.linux.dev,
	Nikolay Aleksandrov <razor@...ckwall.org>
Subject: Re: [PATCH iproute2-next] bridge: mcast: add mcast_active_v4 /
 mcast_active_v6 output

On Fri, Feb 06, 2026 at 03:37:04AM +0100, Linus Lüssing wrote:
> Add output for the mcast_active_v4 and mcast_active_v6 states. If their
> output is 1 then IGMP/MLD snooping is applied to multicast payload
> traffic of their according protocol family. This is the case when:
> 
> * the bridge interface is up
> * multicast snooping is enabled
> * an IGMP/MLD querier is present
> * for own IPv6 MLD querier: an IPv6 address is configured on the bridge
> 
> Signed-off-by: Linus Lüssing <linus.luessing@...3.blue>
> ---
>  bridge/vlan.c                  | 10 ++++++++++
>  include/uapi/linux/if_bridge.h |  2 ++
>  include/uapi/linux/if_link.h   |  2 ++

Code looks fine, but note that David asks to split the uAPI header
changes to a separate patch as a hint for him to sync the headers. See
commit a3ec2778576b ("Update kernel headers") for example.

>  ip/iplink_bridge.c             | 12 ++++++++++++
>  4 files changed, 26 insertions(+)