From 482ff9fdc84dd71099d54edb322a2b32d2f331e4 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 6 Feb 2017 15:55:21 -0800 Subject: [PATCH] net: pxa168_eth: Do not clobber PHY link outside of state machine Calling phy_read_status() means that we may call into genphy_read_status() which in turn will use genphy_update_link() which can make changes to phydev->link outside of the state machine's state transitions. This is an invalid behavior that is now caught as of 811a919135b9 ("phy state machine: failsafe leave invalid RUNNING state") Since we don't have anything special, switch to the generic phy_ethtool_get_link_ksettings() function now. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/pxa168_eth.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c index 3376a19f1e19..28cb36d9e50a 100644 --- a/drivers/net/ethernet/marvell/pxa168_eth.c +++ b/drivers/net/ethernet/marvell/pxa168_eth.c @@ -274,8 +274,6 @@ enum hash_table_entry { HASH_ENTRY_RECEIVE_DISCARD_BIT = 2 }; -static int pxa168_get_link_ksettings(struct net_device *dev, - struct ethtool_link_ksettings *cmd); static int pxa168_init_hw(struct pxa168_eth_private *pep); static int pxa168_init_phy(struct net_device *dev); static void eth_port_reset(struct net_device *dev); @@ -987,10 +985,6 @@ static int pxa168_init_phy(struct net_device *dev) if (err) return err; - err = pxa168_get_link_ksettings(dev, &cmd); - if (err) - return err; - cmd.base.phy_address = pep->phy_addr; cmd.base.speed = pep->phy_speed; cmd.base.duplex = pep->phy_duplex; @@ -1370,18 +1364,6 @@ static int pxa168_eth_do_ioctl(struct net_device *dev, struct ifreq *ifr, return -EOPNOTSUPP; } -static int pxa168_get_link_ksettings(struct net_device *dev, - struct ethtool_link_ksettings *cmd) -{ - int err; - - err = phy_read_status(dev->phydev); - if (err == 0) - err = phy_ethtool_ksettings_get(dev->phydev, cmd); - - return err; -} - static void pxa168_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { @@ -1396,7 +1378,7 @@ static const struct ethtool_ops pxa168_ethtool_ops = { .nway_reset = phy_ethtool_nway_reset, .get_link = ethtool_op_get_link, .get_ts_info = ethtool_op_get_ts_info, - .get_link_ksettings = pxa168_get_link_ksettings, + .get_link_ksettings = phy_ethtool_get_link_ksettings, .set_link_ksettings = phy_ethtool_set_link_ksettings, }; -- 2.20.1