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b4ab21f903
Andrew Lunn says:
====================
ksettings_{get|set} lock fixes
Walter Stoll <Walter.Stoll@duagon.com> reported a race condition
between "ethtool -s eth0 speed 100 duplex full autoneg off" and phylib
reading the current status from the PHY. Both ksetting_get and
ksetting_set fail the take the phydev mutex, and as a result, there is
a small window of time where the phydev members are not self
consistent.
Patch 1 fixes phy_ethtool_ksettings_get by adding the needed lock.
Patches 2 and 3 move code around and perform to refactoring, to allow
patch 4 to fix phy_ethtool_ksettings_set by added the lock.
Thanks go to Walter for the detailed origional report, suggested fix,
and testing of the proposed patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
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