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When disabling a port, that is not for the driver to decide what to
do with the STP state. This is already handled by the DSA layer.
Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>