amd-xgbe: Remove unnecessary spinlocks

Remove the spinlocks around the ethtool get and set settings
functions and within the link adjustment callback routine.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 5 insertions, 20 deletions

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
index 6005b6021f78..a076aca138a1 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
@@ -290,13 +290,9 @@ static int xgbe_get_settings(struct net_device *netdev,
         if (!pdata->phydev)
                 return -ENODEV;
 
-        spin_lock_irq(&pdata->lock);
-
         ret = phy_ethtool_gset(pdata->phydev, cmd);
         cmd->transceiver = XCVR_EXTERNAL;
 
-        spin_unlock_irq(&pdata->lock);
-
         DBGPR("<--xgbe_get_settings\n");
 
         return ret;
@@ -315,17 +311,14 @@ static int xgbe_set_settings(struct net_device *netdev,
         if (!pdata->phydev)
                 return -ENODEV;
 
-        spin_lock_irq(&pdata->lock);
-
         speed = ethtool_cmd_speed(cmd);
 
-        ret = -EINVAL;
         if (cmd->phy_address != phydev->addr)
-                goto unlock;
+                return -EINVAL;
 
         if ((cmd->autoneg != AUTONEG_ENABLE) &&
             (cmd->autoneg != AUTONEG_DISABLE))
-                goto unlock;
+                return -EINVAL;
 
         if (cmd->autoneg == AUTONEG_DISABLE) {
                 switch (speed) {
@@ -334,16 +327,16 @@ static int xgbe_set_settings(struct net_device *netdev,
                 case SPEED_1000:
                         break;
                 default:
-                        goto unlock;
+                        return -EINVAL;
                 }
 
                 if (cmd->duplex != DUPLEX_FULL)
-                        goto unlock;
+                        return -EINVAL;
         }
 
         cmd->advertising &= phydev->supported;
         if ((cmd->autoneg == AUTONEG_ENABLE) && !cmd->advertising)
-                goto unlock;
+                return -EINVAL;
 
         ret = 0;
         phydev->autoneg = cmd->autoneg;
@@ -359,9 +352,6 @@ static int xgbe_set_settings(struct net_device *netdev,
         if (netif_running(netdev))
                 ret = phy_start_aneg(phydev);
 
-unlock:
-        spin_unlock_irq(&pdata->lock);
-
         DBGPR("<--xgbe_set_settings\n");
 
         return ret;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 225f22d5fe0a..eecd360430a4 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -163,7 +163,6 @@ static void xgbe_adjust_link(struct net_device *netdev)
         struct xgbe_prv_data *pdata = netdev_priv(netdev);
         struct xgbe_hw_if *hw_if = &pdata->hw_if;
         struct phy_device *phydev = pdata->phydev;
-        unsigned long flags;
         int new_state = 0;
 
         if (phydev == NULL)
@@ -172,8 +171,6 @@ static void xgbe_adjust_link(struct net_device *netdev)
         DBGPR_MDIO("-->xgbe_adjust_link: address=%d, newlink=%d, curlink=%d\n",
                    phydev->addr, phydev->link, pdata->phy_link);
 
-        spin_lock_irqsave(&pdata->lock, flags);
-
         if (phydev->link) {
                 /* Flow control support */
                 if (pdata->pause_autoneg) {
@@ -229,8 +226,6 @@ static void xgbe_adjust_link(struct net_device *netdev)
         if (new_state)
                 phy_print_status(phydev);
 
-        spin_unlock_irqrestore(&pdata->lock, flags);
-
         DBGPR_MDIO("<--xgbe_adjust_link\n");
 }