net: dsa: Move VLAN filtering syncing out of dsa_switch_bridge_leave

Most of dsa_switch_bridge_leave was, in fact, dealing with the syncing
of VLAN filtering for switches on which that is a global
setting. Separate the two phases to prepare for the cross-chip related
bugfix in the following commit.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index e3c7d26..9f9b70d 100644 (file)
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -113,26 +113,15 @@ static int dsa_switch_bridge_join(struct dsa_switch *ds,
        return dsa_tag_8021q_bridge_join(ds, info);
 }
 
-static int dsa_switch_bridge_leave(struct dsa_switch *ds,
-                                  struct dsa_notifier_bridge_info *info)
+static int dsa_switch_sync_vlan_filtering(struct dsa_switch *ds,
+                                         struct dsa_notifier_bridge_info *info)
 {
-       struct dsa_switch_tree *dst = ds->dst;
        struct netlink_ext_ack extack = {0};
        bool change_vlan_filtering = false;
        bool vlan_filtering;
        struct dsa_port *dp;
        int err;
 
-       if (dst->index == info->tree_index && ds->index == info->sw_index &&
-           ds->ops->port_bridge_leave)
-               ds->ops->port_bridge_leave(ds, info->port, info->bridge);
-
-       if ((dst->index != info->tree_index || ds->index != info->sw_index) &&
-           ds->ops->crosschip_bridge_leave)
-               ds->ops->crosschip_bridge_leave(ds, info->tree_index,
-                                               info->sw_index, info->port,
-                                               info->bridge);
-
        if (ds->needs_standalone_vlan_filtering &&
            !br_vlan_enabled(info->bridge.dev)) {
                change_vlan_filtering = true;
@@ -172,6 +161,29 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
                        return err;
        }
 
+       return 0;
+}
+
+static int dsa_switch_bridge_leave(struct dsa_switch *ds,
+                                  struct dsa_notifier_bridge_info *info)
+{
+       struct dsa_switch_tree *dst = ds->dst;
+       int err;
+
+       if (dst->index == info->tree_index && ds->index == info->sw_index &&
+           ds->ops->port_bridge_leave)
+               ds->ops->port_bridge_leave(ds, info->port, info->bridge);
+
+       if ((dst->index != info->tree_index || ds->index != info->sw_index) &&
+           ds->ops->crosschip_bridge_leave)
+               ds->ops->crosschip_bridge_leave(ds, info->tree_index,
+                                               info->sw_index, info->port,
+                                               info->bridge);
+
+       err = dsa_switch_sync_vlan_filtering(ds, info);
+       if (err)
+               return err;
+
        return dsa_tag_8021q_bridge_leave(ds, info);
 }