Let me check if I understand correctly- is that what was sent with the
v3 [1] , with the initialization helper (ethtool_forced_speed_maps_init)
and the structure map in the ethtool code? Or do you have another helper
in mind?

Sorry for the late reply, been on vacation.

The main thing is you try to reuse the table:

static const struct phy_setting settings[] = {}

If you can build your helper on top of phy_lookup_setting() even
better. You don't need a phy_device to use those.

	Andrew