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mlxsw: spectrum_span: Ignore VLAN entries not used by the bridge in mirroring

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Only VLAN entries installed on the bridge device itself should be
considered when checking whether a packet with a specific VLAN can be
mirrored via a bridge device. VLAN entries only used to keep context
(i.e., entries with 'BRIDGE_VLAN_INFO_BRENTRY' unset) should be ignored.

Fix this by preventing mirroring when the VLAN entry does not have the
'BRIDGE_VLAN_INFO_BRENTRY' flag set.

Fixes: ddaff5047003 ("mlxsw: spectrum: remove guards against !BRIDGE_VLAN_INFO_BRENTRY")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2022-02-22 19:16:53 +02:00 committed by David S. Miller
parent c035ea76c4
commit 42c9135fef
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c
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@ -269,7 +269,8 @@ mlxsw_sp_span_entry_bridge_8021q(const struct net_device *br_dev,
if (!vid && WARN_ON(br_vlan_get_pvid(br_dev, &vid)))
return NULL;
if (!vid || br_vlan_get_info(br_dev, vid, &vinfo))
if (!vid || br_vlan_get_info(br_dev, vid, &vinfo) ||
!(vinfo.flags & BRIDGE_VLAN_INFO_BRENTRY))
return NULL;
edev = br_fdb_find_port(br_dev, dmac, vid);