On Fri, 26 Feb 2021 15:44:42 +0800 Huazhong Tan wrote: > From: Guangbin Huang <huangguangb...@huawei.com> > > If phy uses generic driver and autoneg is on, enter command > "ethtool -s eth0 speed 50" will not change phy speed actually, but > command "ethtool eth0" shows speed is 50Mb/s because phydev->speed > has been set to 50 and no update later. > > And duplex setting has same problem too. > > However, if autoneg is on, phy only changes speed and duplex according to > phydev->advertising, but not phydev->speed and phydev->duplex. So in this > case, phydev->speed and phydev->duplex don't need to be set in function > phy_ethtool_ksettings_set() if autoneg is on.
Can we get a Fixes tag for this one? How far back does this behavior date?
