net: dsa: Remove prepare phase for FDB
The prepare phase for FDB add is unneeded because most of DSA devices
can have failures during bus transactions (SPI, I2C, etc.), thus, the
prepare phase cannot guarantee success of the commit stage.
The support for learning FDB through notification chain, which will be
introduced in the following patches, will provide the ability to notify
back the bridge about successful offload.
Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 8236975..68cc1f6 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1406,26 +1406,18 @@ static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port,
return mv88e6xxx_g1_atu_loadpurge(chip, vlan.fid, &entry);
}
-static int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid)
-{
- /* We don't need any dynamic resource from the kernel (yet),
- * so skip the prepare phase.
- */
- return 0;
-}
-
-static void mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
- const unsigned char *addr, u16 vid)
+static int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
+ const unsigned char *addr, u16 vid)
{
struct mv88e6xxx_chip *chip = ds->priv;
+ int err;
mutex_lock(&chip->reg_lock);
- if (mv88e6xxx_port_db_load_purge(chip, port, addr, vid,
- MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC))
- dev_err(ds->dev, "p%d: failed to load unicast MAC address\n",
- port);
+ err = mv88e6xxx_port_db_load_purge(chip, port, addr, vid,
+ MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC);
mutex_unlock(&chip->reg_lock);
+
+ return err;
}
static int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port,
@@ -3905,7 +3897,6 @@ static const struct dsa_switch_ops mv88e6xxx_switch_ops = {
.port_vlan_add = mv88e6xxx_port_vlan_add,
.port_vlan_del = mv88e6xxx_port_vlan_del,
.port_vlan_dump = mv88e6xxx_port_vlan_dump,
- .port_fdb_prepare = mv88e6xxx_port_fdb_prepare,
.port_fdb_add = mv88e6xxx_port_fdb_add,
.port_fdb_del = mv88e6xxx_port_fdb_del,
.port_fdb_dump = mv88e6xxx_port_fdb_dump,