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17194be4c8
As we have the ability to track the PHYs connected to a net_device through the link_topology, we can expose this list to userspace. This allows userspace to use these identifiers for phy-specific commands and take the decision of which PHY to target by knowing the link topology. Add PHY_GET and PHY_DUMP, which can be a filtered DUMP operation to list devices on only one interface. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>