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 down.
Signed-off-by: Marek Vasut <[email protected]> Cc: Tristram Ha <[email protected]> Cc: Vivien Didelot <[email protected]> Cc: Woojung Huh <[email protected]> Cc: David S. Miller <[email protected]> --- V2: New patch --- net/dsa/tag_ksz.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c index 6305c4d4068dc..b2d407ee63e8e 100644 --- a/net/dsa/tag_ksz.c +++ b/net/dsa/tag_ksz.c @@ -108,6 +108,10 @@ 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; -- 2.18.0
