Commit 8a75b9d4 authored by Marek Vasut's avatar Marek Vasut Committed by David S. Miller
Browse files

net: dsa: ksz: Add STP multicast handling 



In case the destination address is link local, add override bit into the
switch tag to let such a packet through the switch even if the port is
blocked.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bafe9ba7

net/dsa/tag_ksz.c

+4 −0
Original line number Diff line number Diff line
@@ -110,6 +110,10 @@ static struct sk_buff *ksz9477_xmit(struct sk_buff *skb, 
	addr = skb_mac_header(nskb);



	*tag = BIT(dp->index);



	if (is_link_local_ether_addr(addr))

		*tag |= KSZ9477_TAIL_TAG_OVERRIDE;



	*tag = cpu_to_be16(*tag);



	return nskb;