Flood flags set by port_bridge_flags persist after a port leaves the bridge, causing unknown unicast to be forwarded to standalone ports. Clear UNU_FFP, UNM_FFP and BC_FFP in port_bridge_leave so that the port returns to its initial state without flooding. Fixes: 5a30833b9a16 ("net: dsa: mt7530: support MDB and bridge flag operations") Signed-off-by: Daniel Golle --- drivers/net/dsa/mt7530.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 7cd8566a31e6..2e5337186800 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1767,6 +1767,11 @@ mt7530_port_bridge_leave(struct dsa_switch *ds, int port, mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK, MT7530_PORT_MATRIX_MODE); + /* Clear flood flags so they don't persist across bridge leave */ + mt7530_clear(priv, MT753X_MFC, + UNU_FFP(BIT(port)) | UNM_FFP(BIT(port)) | + BC_FFP(BIT(port))); + mutex_unlock(&priv->reg_mutex); } -- 2.54.0