netdev - Re: [RFC PATCH 6/9] net: dsa: allow 8021q uppers while the bridge has vlan

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Message-ID: <f9dd7bac-6939-0161-b00f-493ec8ddacc9@gmail.com>
Date:   Sat, 19 Sep 2020 19:40:22 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vladimir Oltean <vladimir.oltean@....com>, netdev@...r.kernel.org,
        davem@...emloft.net
Cc:     andrew@...n.ch, vivien.didelot@...il.com, idosch@...sch.org,
        jiri@...nulli.us, kurt.kanzenbach@...utronix.de, kuba@...nel.org
Subject: Re: [RFC PATCH 6/9] net: dsa: allow 8021q uppers while the bridge has
 vlan_filtering=0



On 9/19/2020 6:47 PM, Vladimir Oltean wrote:
> When the bridge has VLAN awareness disabled there isn't any duplication
> of functionality, since the bridge does not process VLAN. Don't deny
> adding 8021q uppers to DSA switch ports in that case. The switch is
> supposed to simply pass traffic leaving the VLAN tag as-is, and the
> stack will happily strip the VLAN tag for all 8021q uppers that exist.
> 
> We need to ensure that there are no 8021q uppers when the user attempts
> to enable bridge vlan_filtering.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian