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SubjectRe: [PATCH net-next] net: dsa: Support bridge 802.1Q while untagging
On Wed, Sep 30, 2020 at 01:31:03PM -0700, Florian Fainelli wrote:
> While we are it, call __vlan_find_dev_deep_rcu() which makes use the
> VLAN group array which is faster.

Not just "while at it", but I do wonder whether it isn't, in fact,
called "deep" for a reason:

* Lower devices of master uppers (bonding, team) do not have
* grp assigned to themselves. Grp is assigned to upper device
* instead.

I haven't tested this, but I wonder if you could actually call
__vlan_find_dev_deep_rcu() on the switch port interface and it would
cover both this and the bridge having an 8021q upper automatically?
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