diff options
| author | DENG Qingfang <dqfext@gmail.com> | 2021-08-11 12:50:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-03 11:09:30 +0300 |
| commit | b6c657abb893ef456fad6b229089f37127202df0 (patch) | |
| tree | 122dde37466c326ef3a46eee6322e30ae7e96b99 /drivers/net | |
| parent | f8242f554c82ad7f91b73d3834e81335af9ad600 (diff) | |
| download | linux-b6c657abb893ef456fad6b229089f37127202df0.tar.xz | |
net: dsa: mt7530: fix VLAN traffic leaks again
commit 7428022b50d0fbb4846dd0f00639ea09d36dff02 upstream.
When a port leaves a VLAN-aware bridge, the current code does not clear
other ports' matrix field bit. If the bridge is later set to VLAN-unaware
mode, traffic in the bridge may leak to that port.
Remove the VLAN filtering check in mt7530_port_bridge_leave.
Fixes: 474a2ddaa192 ("net: dsa: mt7530: fix VLAN traffic leaks")
Fixes: 83163f7dca56 ("net: dsa: mediatek: add VLAN support for MT7530")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/dsa/mt7530.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 3fa2f81c8b47..73de09093c35 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1161,11 +1161,8 @@ mt7530_port_bridge_leave(struct dsa_switch *ds, int port, /* Remove this port from the port matrix of the other ports * in the same bridge. If the port is disabled, port matrix * is kept and not being setup until the port becomes enabled. - * And the other port's port matrix cannot be broken when the - * other port is still a VLAN-aware port. */ - if (dsa_is_user_port(ds, i) && i != port && - !dsa_port_is_vlan_filtering(dsa_to_port(ds, i))) { + if (dsa_is_user_port(ds, i) && i != port) { if (dsa_to_port(ds, i)->bridge_dev != bridge) continue; if (priv->ports[i].enable) |