net: switchdev: Add extack to switchdev_handle_port_obj_add() callback

Drivers use switchdev_handle_port_obj_add() to handle recursive descent
through lower devices. Change this function prototype to take add_cb
that itself takes an extack argument. Decode extack from
switchdev_notifier_port_obj_info and pass it to add_cb.

Update mlxsw and ocelot drivers which use this helper.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 17 insertions, 7 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 5ad1fcebf788..4b9292289256 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1777,7 +1777,8 @@ static void mlxsw_sp_span_respin_schedule(struct mlxsw_sp *mlxsw_sp)
 
 static int mlxsw_sp_port_obj_add(struct net_device *dev,
                                  const struct switchdev_obj *obj,
-                                 struct switchdev_trans *trans)
+                                 struct switchdev_trans *trans,
+                                 struct netlink_ext_ack *extack)
 {
         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
         const struct switchdev_obj_port_vlan *vlan;
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 7f8da8873a96..ea3eec263875 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1293,7 +1293,8 @@ static int ocelot_port_obj_del_mdb(struct net_device *dev,
 
 static int ocelot_port_obj_add(struct net_device *dev,
                                const struct switchdev_obj *obj,
-                               struct switchdev_trans *trans)
+                               struct switchdev_trans *trans,
+                               struct netlink_ext_ack *extack)
 {
         int ret = 0;
 
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 4facfa6775e8..a7fdab5ee6c3 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -215,7 +215,8 @@ int switchdev_handle_port_obj_add(struct net_device *dev,
                         bool (*check_cb)(const struct net_device *dev),
                         int (*add_cb)(struct net_device *dev,
                                       const struct switchdev_obj *obj,
-                                      struct switchdev_trans *trans));
+                                      struct switchdev_trans *trans,
+                                      struct netlink_ext_ack *extack));
 int switchdev_handle_port_obj_del(struct net_device *dev,
                         struct switchdev_notifier_port_obj_info *port_obj_info,
                         bool (*check_cb)(const struct net_device *dev),
@@ -304,7 +305,8 @@ switchdev_handle_port_obj_add(struct net_device *dev,
                         bool (*check_cb)(const struct net_device *dev),
                         int (*add_cb)(struct net_device *dev,
                                       const struct switchdev_obj *obj,
-                                      struct switchdev_trans *trans))
+                                      struct switchdev_trans *trans,
+                                      struct netlink_ext_ack *extack))
 {
         return 0;
 }
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index aa84acfb6632..5df9d1138ac9 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -616,16 +616,21 @@ static int __switchdev_handle_port_obj_add(struct net_device *dev,
                         bool (*check_cb)(const struct net_device *dev),
                         int (*add_cb)(struct net_device *dev,
                                       const struct switchdev_obj *obj,
-                                      struct switchdev_trans *trans))
+                                      struct switchdev_trans *trans,
+                                      struct netlink_ext_ack *extack))
 {
+        struct netlink_ext_ack *extack;
         struct net_device *lower_dev;
         struct list_head *iter;
         int err = -EOPNOTSUPP;
 
+        extack = switchdev_notifier_info_to_extack(&port_obj_info->info);
+
         if (check_cb(dev)) {
                 /* This flag is only checked if the return value is success. */
                 port_obj_info->handled = true;
-                return add_cb(dev, port_obj_info->obj, port_obj_info->trans);
+                return add_cb(dev, port_obj_info->obj, port_obj_info->trans,
+                              extack);
         }
 
         /* Switch ports might be stacked under e.g. a LAG. Ignore the
@@ -650,7 +655,8 @@ int switchdev_handle_port_obj_add(struct net_device *dev,
                         bool (*check_cb)(const struct net_device *dev),
                         int (*add_cb)(struct net_device *dev,
                                       const struct switchdev_obj *obj,
-                                      struct switchdev_trans *trans))
+                                      struct switchdev_trans *trans,
+                                      struct netlink_ext_ack *extack))
 {
         int err;