netdev - [PATCH net-next 08/14] net: bridge: multicast: add EHT host delete function

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Date:   Wed, 20 Jan 2021 16:51:57 +0200
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     netdev@...r.kernel.org
Cc:     roopa@...dia.com, bridge@...ts.linux-foundation.org,
        kuba@...nel.org, davem@...emloft.net,
        Nikolay Aleksandrov <nikolay@...dia.com>
Subject: [PATCH net-next 08/14] net: bridge: multicast: add EHT host delete function

From: Nikolay Aleksandrov <nikolay@...dia.com>

Now that we can delete set entries, we can use that to remove EHT hosts.
Since the group's host set entries exist only when there are related
source set entries we just have to flush all source set entries
joined by the host set entry and it will be automatically removed.

Signed-off-by: Nikolay Aleksandrov <nikolay@...dia.com>
---
 net/bridge/br_multicast_eht.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/net/bridge/br_multicast_eht.c b/net/bridge/br_multicast_eht.c
index f4bbf2dc9fc8..409fced7eae2 100644
--- a/net/bridge/br_multicast_eht.c
+++ b/net/bridge/br_multicast_eht.c
@@ -434,3 +434,20 @@ static bool br_multicast_del_eht_set_entry(struct net_bridge_port_group *pg,
 out:
 	return set_deleted;
 }
+
+static void br_multicast_del_eht_host(struct net_bridge_port_group *pg,
+				      union net_bridge_eht_addr *h_addr)
+{
+	struct net_bridge_group_eht_set_entry *set_h;
+	struct net_bridge_group_eht_host *eht_host;
+	struct hlist_node *tmp;
+
+	eht_host = br_multicast_eht_host_lookup(pg, h_addr);
+	if (!eht_host)
+		return;
+
+	hlist_for_each_entry_safe(set_h, tmp, &eht_host->set_entries, host_list)
+		br_multicast_del_eht_set_entry(set_h->eht_set->pg,
+					       &set_h->eht_set->src_addr,
+					       &set_h->h_addr);
+}
-- 
2.29.2