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List: linux-bridge
Subject: [Bridge] [PATCH net-next v2 08/14] bridge: mcast: Avoid arming group timer when (S, G) corresponds t
From: Ido Schimmel via Bridge <bridge () lists ! linux-foundation ! org>
Date: 2022-12-10 14:56:27
Message-ID: 20221210145633.1328511-9-idosch () nvidia ! com
[Download RAW message or body]
User space will soon be able to install a (*, G) with a source list,
prompting the creation of a (S, G) entry for each source.
In this case, the group timer of the (S, G) entry should never be set.
Solve this by adding a new field to the MDB configuration structure that
denotes whether the (S, G) corresponds to a source or not.
The field will be set in a subsequent patch where br_mdb_add_group_sg()
is called in order to create a (S, G) entry for each user provided
source.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
---
net/bridge/br_mdb.c | 2 +-
net/bridge/br_private.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 95780652cdbf..7cda9d1c5c93 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -814,7 +814,7 @@ static int br_mdb_add_group_sg(const struct br_mdb_config *cfg,
return -ENOMEM;
}
rcu_assign_pointer(*pp, p);
- if (!(flags & MDB_PG_FLAGS_PERMANENT))
+ if (!(flags & MDB_PG_FLAGS_PERMANENT) && !cfg->src_entry)
mod_timer(&p->timer,
now + brmctx->multicast_membership_interval);
br_mdb_notify(cfg->br->dev, mp, p, RTM_NEWMDB);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 74f17b56c9eb..e98bfe3c02e1 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -98,6 +98,7 @@ struct br_mdb_config {
struct net_bridge_port *p;
struct br_mdb_entry *entry;
struct br_ip group;
+ bool src_entry;
};
#endif
--
2.37.3
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