net: dsa: only bring down user ports assigned to a given DSA master
This is an adaptation of commit c0a8a9c2 ("net: dsa: automatically bring user ports down when master goes down") for multiple DSA masters. When a DSA master goes down, only the user ports under its control should go down too, the others can still send/receive traffic. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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