diff --git a/net/dsa/port.c b/net/dsa/port.c
index e23db9507546..25258b33e59e 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -1467,10 +1467,34 @@ int dsa_port_change_conduit(struct dsa_port *dp, struct net_device *conduit,
*/
dsa_user_unsync_ha(dev);
+ /* If live-changing, we also need to uninstall the user device address
+ * from the port FDB and the conduit interface.
+ */
+ if (dev->flags & IFF_UP)
+ dsa_user_host_uc_uninstall(dev);
+
err = dsa_port_assign_conduit(dp, conduit, extack, true);
if (err)
goto rewind_old_addrs;
+ /* If the port doesn't have its own MAC address and relies on the DSA
+ * conduit's one, inherit it again from the new DSA conduit.
+ */
+ if (is_zero_ether_addr(dp->mac))
+ eth_hw_addr_inherit(dev, conduit);
+
+ /* If live-changing, we need to install the user device address to the
+ * port FDB and the conduit interface.
+ */
+ if (dev->flags & IFF_UP) {
+ err = dsa_user_host_uc_install(dev, dev->dev_addr);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Failed to install host UC address");
+ goto rewind_addr_inherit;
+ }
+ }
+
dsa_user_sync_ha(dev);
if (vlan_filtering) {
@@ -1500,10 +1524,26 @@ rewind_new_vlan:
rewind_new_addrs:
dsa_user_unsync_ha(dev);
+ if (dev->flags & IFF_UP)
+ dsa_user_host_uc_uninstall(dev);
+
+rewind_addr_inherit:
+ if (is_zero_ether_addr(dp->mac))
+ eth_hw_addr_inherit(dev, old_conduit);
+
dsa_port_assign_conduit(dp, old_conduit, NULL, false);
/* Restore the objects on the old CPU port */
rewind_old_addrs:
+ if (dev->flags & IFF_UP) {
+ tmp = dsa_user_host_uc_install(dev, dev->dev_addr);
+ if (tmp) {
+ dev_err(ds->dev,
+ "port %d failed to restore host UC address: %pe\n",
+ dp->index, ERR_PTR(tmp));
+ }
+ }
+
dsa_user_sync_ha(dev);
if (vlan_filtering) {
diff --git a/net/dsa/user.c b/net/dsa/user.c
index 867c5fe9a4da..e8f56a40b614 100644
--- a/net/dsa/user.c
+++ b/net/dsa/user.c
@@ -355,60 +355,82 @@ static int dsa_user_get_iflink(const struct net_device *dev)
return READ_ONCE(dsa_user_to_conduit(dev)->ifindex);
}
-static int dsa_user_open(struct net_device *dev)
+int dsa_user_host_uc_install(struct net_device *dev, const u8 *addr)
{
struct net_device *conduit = dsa_user_to_conduit(dev);
struct dsa_port *dp = dsa_user_to_port(dev);
struct dsa_switch *ds = dp->ds;
int err;
+ if (dsa_switch_supports_uc_filtering(ds)) {
+ err = dsa_port_standalone_host_fdb_add(dp, addr, 0);
+ if (err)
+ goto out;
+ }
+
+ if (!ether_addr_equal(addr, conduit->dev_addr)) {
+ err = dev_uc_add(conduit, addr);
+ if (err < 0)
+ goto del_host_addr;
+ }
+
+ return 0;
+
+del_host_addr:
+ if (dsa_switch_supports_uc_filtering(ds))
+ dsa_port_standalone_host_fdb_del(dp, addr, 0);
+out:
+ return err;
+}
+
+void dsa_user_host_uc_uninstall(struct net_device *dev)
+{
+ struct net_device *conduit = dsa_user_to_conduit(dev);
+ struct dsa_port *dp = dsa_user_to_port(dev);
+ struct dsa_switch *ds = dp->ds;
+
+ if (!ether_addr_equal(dev->dev_addr, conduit->dev_addr))
+ dev_uc_del(conduit, dev->dev_addr);
+
+ if (dsa_switch_supports_uc_filtering(ds))
+ dsa_port_standalone_host_fdb_del(dp, dev->dev_addr, 0);
+}
+
+static int dsa_user_open(struct net_device *dev)
+{
+ struct net_device *conduit = dsa_user_to_conduit(dev);
+ struct dsa_port *dp = dsa_user_to_port(dev);
+ int err;
+
err = dev_open(conduit, NULL);
if (err < 0) {
netdev_err(dev, "failed to open conduit %s\n", conduit->name);
goto out;
}
- if (dsa_switch_supports_uc_filtering(ds)) {
- err = dsa_port_standalone_host_fdb_add(dp, dev->dev_addr, 0);
- if (err)
- goto out;
- }
-
- if (!ether_addr_equal(dev->dev_addr, conduit->dev_addr)) {
- err = dev_uc_add(conduit, dev->dev_addr);
- if (err < 0)
- goto del_host_addr;
- }
+ err = dsa_user_host_uc_install(dev, dev->dev_addr);
+ if (err)
+ goto out;
err = dsa_port_enable_rt(dp, dev->phydev);
if (err)
- goto del_unicast;
+ goto out_del_host_uc;
return 0;
-del_unicast:
- if (!ether_addr_equal(dev->dev_addr, conduit->dev_addr))
- dev_uc_del(conduit, dev->dev_addr);
-del_host_addr:
- if (dsa_switch_supports_uc_filtering(ds))
- dsa_port_standalone_host_fdb_del(dp, dev->dev_addr, 0);
+out_del_host_uc:
+ dsa_user_host_uc_uninstall(dev);
out:
return err;
}
static int dsa_user_close(struct net_device *dev)
{
- struct net_device *conduit = dsa_user_to_conduit(dev);
struct dsa_port *dp = dsa_user_to_port(dev);
- struct dsa_switch *ds = dp->ds;
dsa_port_disable_rt(dp);
- if (!ether_addr_equal(dev->dev_addr, conduit->dev_addr))
- dev_uc_del(conduit, dev->dev_addr);
-
- if (dsa_switch_supports_uc_filtering(ds))
- dsa_port_standalone_host_fdb_del(dp, dev->dev_addr, 0);
+ dsa_user_host_uc_uninstall(dev);
return 0;
}
@@ -448,7 +470,6 @@ static void dsa_user_set_rx_mode(struct net_device *dev)
static int dsa_user_set_mac_address(struct net_device *dev, void *a)
{
- struct net_device *conduit = dsa_user_to_conduit(dev);
struct dsa_port *dp = dsa_user_to_port(dev);
struct dsa_switch *ds = dp->ds;
struct sockaddr *addr = a;
@@ -470,34 +491,16 @@ static int dsa_user_set_mac_address(struct net_device *dev, void *a)
if (!(dev->flags & IFF_UP))
goto out_change_dev_addr;
- if (dsa_switch_supports_uc_filtering(ds)) {
- err = dsa_port_standalone_host_fdb_add(dp, addr->sa_data, 0);
- if (err)
- return err;
- }
+ err = dsa_user_host_uc_install(dev, addr->sa_data);
+ if (err)
+ return err;
- if (!ether_addr_equal(addr->sa_data, conduit->dev_addr)) {
- err = dev_uc_add(conduit, addr->sa_data);
- if (err < 0)
- goto del_unicast;
- }
-
- if (!ether_addr_equal(dev->dev_addr, conduit->dev_addr))
- dev_uc_del(conduit, dev->dev_addr);
-
- if (dsa_switch_supports_uc_filtering(ds))
- dsa_port_standalone_host_fdb_del(dp, dev->dev_addr, 0);
+ dsa_user_host_uc_uninstall(dev);
out_change_dev_addr:
eth_hw_addr_set(dev, addr->sa_data);
return 0;
-
-del_unicast:
- if (dsa_switch_supports_uc_filtering(ds))
- dsa_port_standalone_host_fdb_del(dp, addr->sa_data, 0);
-
- return err;
}
struct dsa_user_dump_ctx {
@@ -2879,12 +2882,6 @@ int dsa_user_change_conduit(struct net_device *dev, struct net_device *conduit,
ERR_PTR(err));
}
- /* If the port doesn't have its own MAC address and relies on the DSA
- * conduit's one, inherit it again from the new DSA conduit.
- */
- if (is_zero_ether_addr(dp->mac))
- eth_hw_addr_inherit(dev, conduit);
-
return 0;
out_revert_conduit_link:
diff --git a/net/dsa/user.h b/net/dsa/user.h
index 996069130bea..016884bead3c 100644
--- a/net/dsa/user.h
+++ b/net/dsa/user.h
@@ -42,6 +42,8 @@ int dsa_user_suspend(struct net_device *user_dev);
int dsa_user_resume(struct net_device *user_dev);
int dsa_user_register_notifier(void);
void dsa_user_unregister_notifier(void);
+int dsa_user_host_uc_install(struct net_device *dev, const u8 *addr);
+void dsa_user_host_uc_uninstall(struct net_device *dev);
void dsa_user_sync_ha(struct net_device *dev);
void dsa_user_unsync_ha(struct net_device *dev);
void dsa_user_setup_tagger(struct net_device *user);