net: dsa: remove dsa_bridge_check_vlan_range

DSA drivers may support multiple bridge groups with the same hardware
VLAN. The mv88e6xxx driver which cannot yet, already has its own check
for overlapping bridges. Thus remove the check from the DSA layer.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index ab515df5f4930125ccdccd96710906bdb400be52..14ca9784ec0c9bdc5c2322266eda0abd3bc5e3c1 100644 (file)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -201,47 +201,6 @@ out:
        return 0;
 }
 
-static int dsa_bridge_check_vlan_range(struct dsa_switch *ds,
-                                      const struct net_device *bridge,
-                                      u16 vid_begin, u16 vid_end)
-{
-       struct dsa_slave_priv *p;
-       struct net_device *dev, *vlan_br;
-       DECLARE_BITMAP(members, DSA_MAX_PORTS);
-       DECLARE_BITMAP(untagged, DSA_MAX_PORTS);
-       u16 vid;
-       int member, err;
-
-       if (!ds->drv->vlan_getnext || !vid_begin)
-               return -EOPNOTSUPP;
-
-       vid = vid_begin - 1;
-
-       do {
-               err = ds->drv->vlan_getnext(ds, &vid, members, untagged);
-               if (err)
-                       break;
-
-               if (vid > vid_end)
-                       break;
-
-               member = find_first_bit(members, DSA_MAX_PORTS);
-               if (member == DSA_MAX_PORTS)
-                       continue;
-
-               dev = ds->ports[member];
-               p = netdev_priv(dev);
-               vlan_br = p->bridge_dev;
-               if (vlan_br == bridge)
-                       continue;
-
-               netdev_dbg(vlan_br, "hardware VLAN %d already in use\n", vid);
-               return -EOPNOTSUPP;
-       } while (vid < vid_end);
-
-       return err == -ENOENT ? 0 : err;
-}
-
 static int dsa_slave_port_vlan_add(struct net_device *dev,
                                   const struct switchdev_obj_port_vlan *vlan,
                                   struct switchdev_trans *trans)
@@ -254,15 +213,6 @@ static int dsa_slave_port_vlan_add(struct net_device *dev,
                if (!ds->drv->port_vlan_prepare || !ds->drv->port_vlan_add)
                        return -EOPNOTSUPP;
 
-               /* If the requested port doesn't belong to the same bridge as
-                * the VLAN members, fallback to software VLAN (hopefully).
-                */
-               err = dsa_bridge_check_vlan_range(ds, p->bridge_dev,
-                                                 vlan->vid_begin,
-                                                 vlan->vid_end);
-               if (err)
-                       return err;
-
                err = ds->drv->port_vlan_prepare(ds, p->port, vlan, trans);
                if (err)
                        return err;