net/mlx5: Introduce modify flow rule destination

This API is used for modifying the flow rule destination.
This is needed for modifying the pointed flow table by the
traffic type classifier rules to point on the aRFS tables.
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

@@ -615,8 +615,8 @@ static int update_root_ft_create(struct mlx5_flow_table *ft, struct fs_prio
 	return err;
 }
 
-static int mlx5_modify_rule_destination(struct mlx5_flow_rule *rule,
-					struct mlx5_flow_destination *dest)
+int mlx5_modify_rule_destination(struct mlx5_flow_rule *rule,
+				 struct mlx5_flow_destination *dest)
 {
 	struct mlx5_flow_table *ft;
 	struct mlx5_flow_group *fg;

include/linux/mlx5/fs.h

@@ -113,4 +113,7 @@ mlx5_add_flow_rule(struct mlx5_flow_table *ft,
 		   struct mlx5_flow_destination *dest);
 void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
 
+int mlx5_modify_rule_destination(struct mlx5_flow_rule *rule,
+				 struct mlx5_flow_destination *dest);
+
 #endif