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authorDENG Qingfang <dqfext@gmail.com>2021-01-30 21:43:34 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-02-10 09:12:10 +0100
commit6e0e334c03366d81ad466fc735fbf309b1edac5f (patch)
tree7305d0fa560f31e92265266ab52f1fbc6c0cbfab
parent43cc1495ecfe59dbeadac0ef604311c7186abe38 (diff)
net: dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
commit f72f2fb8fb6be095b98af5d740ac50cffd0b0cae upstream. Having multiple destination ports for a unicast address does not make sense. Make port_db_load_purge override existent unicast portvec instead of adding a new port bit. Fixes: 884729399260 ("net: dsa: mv88e6xxx: handle multiple ports in ATU") Signed-off-by: DENG Qingfang <dqfext@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20210130134334.10243-1-dqfext@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index f4268f032266..7ab4cc0962ac 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1364,7 +1364,11 @@ static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port,
if (!entry.portvec)
entry.state = MV88E6XXX_G1_ATU_DATA_STATE_UNUSED;
} else {
- entry.portvec |= BIT(port);
+ if (state == MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC)
+ entry.portvec = BIT(port);
+ else
+ entry.portvec |= BIT(port);
+
entry.state = state;
}