diff options
| author | Petr Machata <petrm@nvidia.com> | 2025-09-04 19:07:21 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-11 19:02:50 -0700 |
| commit | 40df3b8e90eec85b0830dfc04d805f7ddbcc929d (patch) | |
| tree | e68f49a1aa193f2cec31a5e64b6ad1ddda10b0c8 /net/bridge | |
| parent | 4cf5fd84978738acf3d3610c19c81bbe4a083b93 (diff) | |
net: bridge: BROPT_FDB_LOCAL_VLAN_0: On bridge changeaddr, skip per-VLAN FDBs
When BROPT_FDB_LOCAL_VLAN_0 is enabled, the local FDB entries for the
bridge itself should not be created per-VLAN, but instead only on VLAN 0.
When the bridge address changes, the local FDB entries need to be updated,
which is done in br_fdb_change_mac_address().
Bail out early when in VLAN-0 mode, so that the per-VLAN FDB entries are
not created. The per-VLAN walk is only done afterwards.
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/0bd432cf91921ef7c4ed0e129de1d1cd358c716b.1757004393.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_fdb.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 918c37554638..4a20578517a5 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -503,6 +503,9 @@ void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr) struct net_bridge_vlan_group *vg; struct net_bridge_fdb_entry *f; struct net_bridge_vlan *v; + bool local_vlan_0; + + local_vlan_0 = br_opt_get(br, BROPT_FDB_LOCAL_VLAN_0); spin_lock_bh(&br->hash_lock); @@ -514,7 +517,7 @@ void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr) fdb_add_local(br, NULL, newaddr, 0); vg = br_vlan_group(br); - if (!vg || !vg->num_vlans) + if (!vg || !vg->num_vlans || local_vlan_0) goto out; /* Now remove and add entries for every VLAN configured on the * bridge. This function runs under RTNL so the bitmap will not |