net: dsa: pass extack to .port_bridge_join driver methods

As FDB isolation cannot be enforced between VLAN-aware bridges in lack
of hardware assistance like extra FID bits, it seems plausible that many
DSA switches cannot do it. Therefore, they need to reject configurations
with multiple VLAN-aware bridges from the two code paths that can
transition towards that state:

- joining a VLAN-aware bridge
- toggling VLAN awareness on an existing bridge

The .port_vlan_filtering method already propagates the netlink extack to
the driver, let's propagate it from .port_bridge_join too, to make sure
that the driver can use the same function for both.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

15 files changed, 30 insertions, 16 deletions

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index a8cc6e182c45..122e63762979 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1869,7 +1869,7 @@ int b53_mdb_del(struct dsa_switch *ds, int port,
 EXPORT_SYMBOL(b53_mdb_del);
 
 int b53_br_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge,
-		bool *tx_fwd_offload)
+		bool *tx_fwd_offload, struct netlink_ext_ack *extack)
 {
 	struct b53_device *dev = ds->priv;
 	s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h
index d3091f0ad3e6..86e7eb7924e7 100644
--- a/drivers/net/dsa/b53/b53_priv.h
+++ b/drivers/net/dsa/b53/b53_priv.h
@@ -324,7 +324,7 @@ void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data);
 int b53_get_sset_count(struct dsa_switch *ds, int port, int sset);
 void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data);
 int b53_br_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge,
-		bool *tx_fwd_offload);
+		bool *tx_fwd_offload, struct netlink_ext_ack *extack);
 void b53_br_leave(struct dsa_switch *ds, int port, struct dsa_bridge bridge);
 void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state);
 void b53_br_fast_age(struct dsa_switch *ds, int port);
diff --git a/drivers/net/dsa/dsa_loop.c b/drivers/net/dsa/dsa_loop.c
index 33daaf10c488..263e41191c29 100644
--- a/drivers/net/dsa/dsa_loop.c
+++ b/drivers/net/dsa/dsa_loop.c
@@ -168,7 +168,8 @@ static int dsa_loop_phy_write(struct dsa_switch *ds, int port,
 
 static int dsa_loop_port_bridge_join(struct dsa_switch *ds, int port,
 				     struct dsa_bridge bridge,
-				     bool *tx_fwd_offload)
+				     bool *tx_fwd_offload,
+				     struct netlink_ext_ack *extack)
 {
 	dev_dbg(ds->dev, "%s: port: %d, bridge: %s\n",
 		__func__, port, bridge.dev->name);
diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
index cb89be9de43a..ac1f3b3a7040 100644
--- a/drivers/net/dsa/hirschmann/hellcreek.c
+++ b/drivers/net/dsa/hirschmann/hellcreek.c
@@ -675,7 +675,8 @@ static int hellcreek_bridge_flags(struct dsa_switch *ds, int port,
 
 static int hellcreek_port_bridge_join(struct dsa_switch *ds, int port,
 				      struct dsa_bridge bridge,
-				      bool *tx_fwd_offload)
+				      bool *tx_fwd_offload,
+				      struct netlink_ext_ack *extack)
 {
 	struct hellcreek *hellcreek = ds->priv;
 
diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
index a21184e7fcb6..e03ff1f267bb 100644
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -1111,7 +1111,8 @@ static void lan9303_port_disable(struct dsa_switch *ds, int port)
 
 static int lan9303_port_bridge_join(struct dsa_switch *ds, int port,
 				    struct dsa_bridge bridge,
-				    bool *tx_fwd_offload)
+				    bool *tx_fwd_offload,
+				    struct netlink_ext_ack *extack)
 {
 	struct lan9303 *chip = ds->priv;
 
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index 3dfb532b7784..a8bd233f3cb9 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -1152,7 +1152,8 @@ static int gswip_vlan_remove(struct gswip_priv *priv,
 
 static int gswip_port_bridge_join(struct dsa_switch *ds, int port,
 				  struct dsa_bridge bridge,
-				  bool *tx_fwd_offload)
+				  bool *tx_fwd_offload,
+				  struct netlink_ext_ack *extack)
 {
 	struct net_device *br = bridge.dev;
 	struct gswip_priv *priv = ds->priv;
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 104458ec9cbc..8014b18d9391 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -217,7 +217,8 @@ EXPORT_SYMBOL_GPL(ksz_get_ethtool_stats);
 
 int ksz_port_bridge_join(struct dsa_switch *ds, int port,
 			 struct dsa_bridge bridge,
-			 bool *tx_fwd_offload)
+			 bool *tx_fwd_offload,
+			 struct netlink_ext_ack *extack)
 {
 	/* port_stp_state_set() will be called after to put the port in
 	 * appropriate state so there is no need to do anything.
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 66933445a447..4ff0a159ce3c 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -159,7 +159,8 @@ void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset);
 void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf);
 int ksz_port_bridge_join(struct dsa_switch *ds, int port,
-			 struct dsa_bridge bridge, bool *tx_fwd_offload);
+			 struct dsa_bridge bridge, bool *tx_fwd_offload,
+			 struct netlink_ext_ack *extack);
 void ksz_port_bridge_leave(struct dsa_switch *ds, int port,
 			   struct dsa_bridge bridge);
 void ksz_port_fast_age(struct dsa_switch *ds, int port);
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index abe63ec05066..66b00c19ebe0 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1186,7 +1186,8 @@ mt7530_port_bridge_flags(struct dsa_switch *ds, int port,
 
 static int
 mt7530_port_bridge_join(struct dsa_switch *ds, int port,
-			struct dsa_bridge bridge, bool *tx_fwd_offload)
+			struct dsa_bridge bridge, bool *tx_fwd_offload,
+			struct netlink_ext_ack *extack)
 {
 	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
 	u32 port_bitmap = BIT(MT7530_CPU_PORT);
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index d79c65bb227e..84b90fc36c58 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2618,7 +2618,8 @@ static int mv88e6xxx_map_virtual_bridge_to_pvt(struct dsa_switch *ds,
 
 static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
 				      struct dsa_bridge bridge,
-				      bool *tx_fwd_offload)
+				      bool *tx_fwd_offload,
+				      struct netlink_ext_ack *extack)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
@@ -2684,7 +2685,8 @@ static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port,
 
 static int mv88e6xxx_crosschip_bridge_join(struct dsa_switch *ds,
 					   int tree_index, int sw_index,
-					   int port, struct dsa_bridge bridge)
+					   int port, struct dsa_bridge bridge,
+					   struct netlink_ext_ack *extack)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 4d3b0ba190e2..c2e0d2be5fe3 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -674,7 +674,8 @@ static int felix_bridge_flags(struct dsa_switch *ds, int port,
 }
 
 static int felix_bridge_join(struct dsa_switch *ds, int port,
-			     struct dsa_bridge bridge, bool *tx_fwd_offload)
+			     struct dsa_bridge bridge, bool *tx_fwd_offload,
+			     struct netlink_ext_ack *extack)
 {
 	struct ocelot *ocelot = ds->priv;
 
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index 95104ae954ba..ee0dbf324268 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -2247,7 +2247,8 @@ qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 
 static int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
 				  struct dsa_bridge bridge,
-				  bool *tx_fwd_offload)
+				  bool *tx_fwd_offload,
+				  struct netlink_ext_ack *extack)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 	int port_mask, cpu_port;
diff --git a/drivers/net/dsa/realtek/rtl8366rb.c b/drivers/net/dsa/realtek/rtl8366rb.c
index fb6565e68401..1a3406b9e64c 100644
--- a/drivers/net/dsa/realtek/rtl8366rb.c
+++ b/drivers/net/dsa/realtek/rtl8366rb.c
@@ -1189,7 +1189,8 @@ rtl8366rb_port_disable(struct dsa_switch *ds, int port)
 static int
 rtl8366rb_port_bridge_join(struct dsa_switch *ds, int port,
 			   struct dsa_bridge bridge,
-			   bool *tx_fwd_offload)
+			   bool *tx_fwd_offload,
+			   struct netlink_ext_ack *extack)
 {
 	struct realtek_priv *priv = ds->priv;
 	unsigned int port_bitmap = 0;
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 3a5e37c81f8f..edcf9b2c7da7 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -2071,7 +2071,8 @@ static void sja1105_bridge_stp_state_set(struct dsa_switch *ds, int port,
 
 static int sja1105_bridge_join(struct dsa_switch *ds, int port,
 			       struct dsa_bridge bridge,
-			       bool *tx_fwd_offload)
+			       bool *tx_fwd_offload,
+			       struct netlink_ext_ack *extack)
 {
 	int rc;
 
diff --git a/drivers/net/dsa/xrs700x/xrs700x.c b/drivers/net/dsa/xrs700x/xrs700x.c
index bc06fe6bac6b..3887ed33c5fe 100644
--- a/drivers/net/dsa/xrs700x/xrs700x.c
+++ b/drivers/net/dsa/xrs700x/xrs700x.c
@@ -534,7 +534,8 @@ static int xrs700x_bridge_common(struct dsa_switch *ds, int port,
 }
 
 static int xrs700x_bridge_join(struct dsa_switch *ds, int port,
-			       struct dsa_bridge bridge, bool *tx_fwd_offload)
+			       struct dsa_bridge bridge, bool *tx_fwd_offload,
+			       struct netlink_ext_ack *extack)
 {
 	return xrs700x_bridge_common(ds, port, bridge, true);
 }