[PATCH net-next 0/2] Fix phy_link_topology initialization

[Maxime Chevallier]

Nathan and Heiner reported issues that occur when phylib and phy drivers
built as modules expect the phy_link_topology to be initialized, due to
wrong use of IS_REACHABLE.

This small fixup series addresses that by moving the initialization code
into net/core/dev.c, but at the same time implementing lazy
initialization to only allocate the topology upon the first PHY
insertion.

This needed some refactoring, namely pass the netdevice itself as a
parameter for phy_link_topology helpers.

Thanks Heiner for the help on untangling this, and Nathan for the
report.

Maxime Chevallier (2):
  net: phy: phy_link_topology: Pass netdevice to phy_link_topo helpers
  net: phy: phy_link_topology: Lazy-initialize the link topology

 drivers/net/phy/phy_device.c           | 25 +++++----------
 drivers/net/phy/phy_link_topology.c    | 44 +++++++++++---------------
 include/linux/netdevice.h              |  2 ++
 include/linux/phy_link_topology.h      | 40 +++++++++++++----------
 include/linux/phy_link_topology_core.h | 23 +++-----------
 net/core/dev.c                         | 38 ++++++++++++++++++----
 net/ethtool/netlink.c                  |  2 +-
 7 files changed, 88 insertions(+), 86 deletions(-)

-- 
2.44.0