Re: [PATCH 5.4.y] net: dsa: mt7530: fix VLAN traffic leaks again

[Greg KH]

On Mon, Aug 23, 2021 at 03:09:27PM +0800, DENG Qingfang wrote:
> [ Upstream commit 7428022b50d0fbb4846dd0f00639ea09d36dff02 ]
> 
> 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: 4fe4e1f48ba1 ("net: dsa: mt7530: fix VLAN traffic leaks")
> Fixes: 83163f7dca56 ("net: dsa: mediatek: add VLAN support for MT7530")
> Signed-off-by: DENG Qingfang <dqfext@xxxxxxxxx>
> Reviewed-by: Vladimir Oltean <olteanv@xxxxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> ---
>  drivers/net/dsa/mt7530.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)

Now queued up, thanks.

greg k-h