net: systemport: do not clear IFF_MULTICAST flag
The SYSTEMPORT Ethernet MAC supports multicast just fine, it just lacks any sort of Unicast/Broadcast/Multicasting filtering at the Ethernet MAC level since that is handled by the front end Ethernet switch, but that is properly handled by bcm_sysport_set_rx_mode(). Some user-space applications might be relying on the presence of this flag to prevent using multicast sockets, this also prevents that interface from joining the IPv6 all-router mcast group. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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