Re: [PATCH v2 net-next 2/8] net: dsa: mv88e6xxx: Avoid useless attempts to fast-age LAGs

On Thu, Mar 18, 2021 at 03:15:44PM +0100, Tobias Waldekranz wrote:

When a port is a part of a LAG, the ATU will create dynamic entries
belonging to the LAG ID when learning is enabled. So trying to
fast-age those out using the constituent port will have no
effect. Unfortunately the hardware does not support move operations on
LAGs so there is no obvious way to transform the request to target the
LAG instead.

Instead we document this known limitation and at least avoid wasting
any time on it.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
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Reviewed-by: Vladimir Oltean <olteanv@gmail.com>