[PATCH net-next 07/11] mlxsw: Flip to the new dev walk API

[David Ahern]

Convert mlxsw users to new dev walk API. This is just a code conversion;
no functional change is intended.

Signed-off-by: David Ahern <d...@cumulusnetworks.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 37 ++++++++++++++++----------
 1 file changed, 23 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c 
b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 43a5eddc2c11..99805fd3d110 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -3092,19 +3092,30 @@ static bool mlxsw_sp_port_dev_check(const struct 
net_device *dev)
        return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
 }
 
+static int mlxsw_lower_dev_walk(struct net_device *lower_dev, void *data)
+{
+       struct mlxsw_sp_port **port = data;
+       int ret = 0;
+
+       if (mlxsw_sp_port_dev_check(lower_dev)) {
+               *port = netdev_priv(lower_dev);
+               ret = 1;
+       }
+
+       return ret;
+}
+
 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device 
*dev)
 {
-       struct net_device *lower_dev;
-       struct list_head *iter;
+       struct mlxsw_sp_port *port;
 
        if (mlxsw_sp_port_dev_check(dev))
                return netdev_priv(dev);
 
-       netdev_for_each_all_lower_dev(dev, lower_dev, iter) {
-               if (mlxsw_sp_port_dev_check(lower_dev))
-                       return netdev_priv(lower_dev);
-       }
-       return NULL;
+       port = NULL;
+       netdev_walk_all_lower_dev(dev, mlxsw_lower_dev_walk, &port);
+
+       return port;
 }
 
 static struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
@@ -3117,17 +3128,15 @@ static struct mlxsw_sp *mlxsw_sp_lower_get(struct 
net_device *dev)
 
 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct 
net_device *dev)
 {
-       struct net_device *lower_dev;
-       struct list_head *iter;
+       struct mlxsw_sp_port *port;
 
        if (mlxsw_sp_port_dev_check(dev))
                return netdev_priv(dev);
 
-       netdev_for_each_all_lower_dev_rcu(dev, lower_dev, iter) {
-               if (mlxsw_sp_port_dev_check(lower_dev))
-                       return netdev_priv(lower_dev);
-       }
-       return NULL;
+       port = NULL;
+       netdev_walk_all_lower_dev_rcu(dev, mlxsw_lower_dev_walk, &port);
+
+       return port;
 }
 
 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
-- 
2.1.4