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db31e09d51
The newly introduced phy_link_topology tracks all ethernet PHYs that are attached to a netdevice. Document the base principle, internal and external APIs. As the phy_link_topology is expected to be extended, this documentation will hold any further improvements and additions made relative to topology handling. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> 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>