mlxsw: spectrum: Stop ignoring learning notifications from redirected traffic

As explained in the previous patch, with the ignore action prepended to
the redirect action, it is not longer possible for redirected traffic to
generate learning notifications.

Therefore, remove the workaround that was added in commit 577fa14d
("mlxsw: spectrum: Do not process learned records with a dummy FID") as
it is no longer needed.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum.h

@@ -1271,7 +1271,6 @@ int mlxsw_sp_setup_tc_block_qevent_mark(struct mlxsw_sp_port *mlxsw_sp_port,
 					struct flow_block_offload *f);
 
 /* spectrum_fid.c */
-bool mlxsw_sp_fid_is_dummy(struct mlxsw_sp *mlxsw_sp, u16 fid_index);
 struct mlxsw_sp_fid *mlxsw_sp_fid_lookup_by_index(struct mlxsw_sp *mlxsw_sp,
 						  u16 fid_index);
 int mlxsw_sp_fid_nve_ifindex(const struct mlxsw_sp_fid *fid, int *nve_ifindex);

drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c

@@ -137,16 +137,6 @@ static const int *mlxsw_sp_packet_type_sfgc_types[] = {
 	[MLXSW_SP_FLOOD_TYPE_MC]	= mlxsw_sp_sfgc_mc_packet_types,
 };
 
-bool mlxsw_sp_fid_is_dummy(struct mlxsw_sp *mlxsw_sp, u16 fid_index)
-{
-	enum mlxsw_sp_fid_type fid_type = MLXSW_SP_FID_TYPE_DUMMY;
-	struct mlxsw_sp_fid_family *fid_family;
-
-	fid_family = mlxsw_sp->fid_core->fid_family_arr[fid_type];
-
-	return fid_family->start_index == fid_index;
-}
-
 struct mlxsw_sp_fid *mlxsw_sp_fid_lookup_by_index(struct mlxsw_sp *mlxsw_sp,
 						  u16 fid_index)
 {

drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

@@ -3066,9 +3066,6 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
 		goto just_remove;
 	}
 
-	if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid))
-		goto just_remove;
-
 	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
 	if (!mlxsw_sp_port_vlan) {
 		netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
@@ -3136,9 +3133,6 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
 		goto just_remove;
 	}
 
-	if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid))
-		goto just_remove;
-
 	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
 	if (!mlxsw_sp_port_vlan) {
 		netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");