From c34963e21685659eb513e1c4d847f81d8a8f13f3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Linus=20L=C3=BCssing?= Date: Mon, 7 Jul 2014 05:41:17 +0200 Subject: [PATCH] bridge: export knowledge about the presence of IGMP/MLD queriers MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit With this patch other modules are able to ask the bridge whether an IGMP or MLD querier exists on the according, bridged link layer. Multicast snooping can only be performed if a valid, selected querier exists on a link. Just like the bridge only enables its multicast snooping if a querier exists, e.g. batman-adv too can only activate its multicast snooping in bridged scenarios if a querier is present. For instance this export avoids having to reimplement IGMP/MLD querier message snooping and parsing in e.g. batman-adv, when multicast optimizations for bridged scenarios are added in the future. Signed-off-by: Linus Lüssing Signed-off-by: David S. Miller --- Reading git-format-patch failed