Merge branch 'net-phylib-eee-cleanups'

Russell King says:

====================
net: phylib EEE cleanups

Clean up phylib's EEE support. Patches previously posted as RFC as part
of the phylink EEE series.

Patch 1 changes the Marvell driver to use the state we store in
struct phy_device, rather than manually calling
phydev->eee_cfg.eee_enabled.

Patch 2 avoids genphy_c45_ethtool_get_eee() setting ->eee_enabled, as
we copy that from phydev->eee_cfg.eee_enabled later, and after patch 3
mo one uses this after calling genphy_c45_ethtool_get_eee(). In fact,
the only caller of this function now is phy_ethtool_get_eee().

As all callers to genphy_c45_eee_is_active() now pass NULL as its
is_enabled flag, this is no longer useful. Remove the argument in
patch 3.

Patch 4 updates the phylib documentation to make it absolutely clear
that phy_ethtool_get_eee() now fills in all members of struct
ethtool_keee, which is why we now have so many buggy network drivers.
====================

Link: https://patch.msgid.link/Z1GDZlFyF2fsFa3S@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>