Merge branch 'fix-2-dsa-issues-with-vlan_filtering_is_global'

Vladimir Oltean says:

====================
Fix 2 DSA issues with vlan_filtering_is_global

This patch set fixes 2 issues with vlan_filtering_is_global switches.

Both are regressions introduced by refactoring commit d0004a0
("net: dsa: remove the "dsa_to_port in a loop" antipattern from the
core"), which wasn't tested on a wide enough variety of switches.

Tested on the sja1105 driver.
====================

Link: https://lore.kernel.org/r/20220715151659.780544-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: kuba-moo

net/dsa/port.c

@@ -248,6 +248,7 @@ static void dsa_port_reset_vlan_filtering(struct dsa_port *dp,
 	struct netlink_ext_ack extack = {0};
 	bool change_vlan_filtering = false;
 	struct dsa_switch *ds = dp->ds;
+	struct dsa_port *other_dp;
 	bool vlan_filtering;
 	int err;
 
@@ -270,8 +271,8 @@ static void dsa_port_reset_vlan_filtering(struct dsa_port *dp,
 	 * VLAN-aware bridge.
 	 */
 	if (change_vlan_filtering && ds->vlan_filtering_is_global) {
-		dsa_switch_for_each_port(dp, ds) {
-			struct net_device *br = dsa_port_bridge_dev_get(dp);
+		dsa_switch_for_each_port(other_dp, ds) {
+			struct net_device *br = dsa_port_bridge_dev_get(other_dp);
 
 			if (br && br_vlan_enabled(br)) {
 				change_vlan_filtering = false;
@@ -799,7 +800,7 @@ int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
 		ds->vlan_filtering = vlan_filtering;
 
 		dsa_switch_for_each_user_port(other_dp, ds) {
-			struct net_device *slave = dp->slave;
+			struct net_device *slave = other_dp->slave;
 
 			/* We might be called in the unbind path, so not
 			 * all slave devices might still be registered.