net: ethernet: ti: ale: do not auto delete mcast super entries

Do not delete multicast supervisory packet's (SUPER) entries while flushing
multicast addresses from ALE table cpsw_ale_flush_multicast(). Those
entries have to be added/removed only explicitly.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ti/cpsw_ale.c

@@ -280,6 +280,9 @@ int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask, int vid)
 		if (cpsw_ale_get_mcast(ale_entry)) {
 			u8 addr[6];
 
+			if (cpsw_ale_get_super(ale_entry))
+				continue;
+
 			cpsw_ale_get_addr(ale_entry, addr);
 			if (!is_broadcast_ether_addr(addr))
 				cpsw_ale_flush_mcast(ale, ale_entry, port_mask);