tree 765e38a7aa3f81cdf02fd0750e810e729ecfa084
parent 9a0fee2b552b1235fb1706ae1fc664ae74573be8
author Florian Fainelli <f.fainelli@gmail.com> 1466810724 -0700
committer David S. Miller <davem@davemloft.net> 1467186700 -0400

net: phy: Manage fixed PHY address space using IDA

If we have a system which uses fixed PHY devices and calls
fixed_phy_register() then fixed_phy_unregister() we can exhaust the
number of fixed PHYs available after a while, since we keep incrementing
the variable phy_fixed_addr, but we never decrement it.

This patch fixes that by converting the fixed PHY allocation to using
IDA, which takes care of the allocation/dealloaction of the PHY
addresses for us.

Fixes: a75951217472 ("net: phy: extend fixed driver with fixed_phy_register()")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>