netdev - Re: [PATCH net-next v2 10/14] net: bridge: mcast: track active state, bridge up/down

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Message-ID: <20260208161048.GJ154003@shredder>
Date: Sun, 8 Feb 2026 18:10:48 +0200
From: Ido Schimmel <idosch@...dia.com>
To: Linus Lüssing <linus.luessing@...3.blue>
Cc: bridge@...ts.linux.dev, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nikolay Aleksandrov <razor@...ckwall.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Simon Horman <horms@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	"David S . Miller" <davem@...emloft.net>,
	Kuniyuki Iwashima <kuniyu@...gle.com>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Xiao Liang <shaw.leon@...il.com>
Subject: Re: [PATCH net-next v2 10/14] net: bridge: mcast: track active
 state, bridge up/down

On Fri, Feb 06, 2026 at 03:52:16AM +0100, Linus Lüssing wrote:
> diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
> index 2a2f54009e0f..7a32c6bed111 100644
> --- a/net/bridge/br_multicast.c
> +++ b/net/bridge/br_multicast.c
> @@ -1124,6 +1124,7 @@ static void br_multicast_notify_active(struct net_bridge_mcast *brmctx,
>   *
>   * The multicast active state is set, per protocol family, if:
>   *
> + * - 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
> @@ -1140,6 +1141,9 @@ static void br_multicast_update_active(struct net_bridge_mcast *brmctx)
>  
>  	lockdep_assert_held_once(&brmctx->br->multicast_lock);
>  
> +	if (!netif_running(brmctx->br->dev))
> +		force_inactive = true;
> +

Same comment as before. Let's skip unnecessary checks

>  	if (!br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED))
>  		force_inactive = true;