net: ll_temac: Cleanup multicast filter on change

Avoid leaving old address table entries when using multicast.  If more than
one multicast address were removed, only the first removed address would
actually be cleared.

Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index cc58bd8c12f60207ccdad1f1003a0708d373f72f..ef13fa904ee41c4fb7430b0e25d83f31e0a9f137 100644 (file)
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -485,10 +485,13 @@ static void temac_set_multicast_list(struct net_device *ndev)
                                                    multi_addr_lsw);
                        i++;
                }
-       } else {
+       }
+
+       /* Clear all or remaining/unused address table entries */
+       while (i < MULTICAST_CAM_TABLE_NUM) {
                temac_indirect_out32_locked(lp, XTE_MAW0_OFFSET, 0);
                temac_indirect_out32_locked(lp, XTE_MAW1_OFFSET, i << 16);
-               }
+               i++;
        }
 
        /* Enable address filter block if currently disabled */