[PATCH net-next v4 1/2] dsa: tag_mxl862xx: set dsa_default_offload_fwd_mark()

[Daniel Golle <daniel@makrotopia.org>]

The MxL862xx offloads bridge forwarding in hardware, so set
dsa_default_offload_fwd_mark() to avoid duplicate forwarding of
packets of (eg. flooded) frames arriving at the CPU port.

Link-local frames are directly trapped to the CPU port only, so don't
set dsa_default_offload_fwd_mark() on those.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
v4: no changes
v3: no changes
v2: don't set dsa_default_offload_fwd_mark() on link-local frames

 net/dsa/tag_mxl862xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/dsa/tag_mxl862xx.c b/net/dsa/tag_mxl862xx.c
index 01f2158682718..ec949d44fc91c 100644
--- a/net/dsa/tag_mxl862xx.c
+++ b/net/dsa/tag_mxl862xx.c
@@ -92,6 +92,9 @@ static struct sk_buff *mxl862_tag_rcv(struct sk_buff *skb,
 	skb_pull_rcsum(skb, MXL862_HEADER_LEN);
 	dsa_strip_etype_header(skb, MXL862_HEADER_LEN);
 
+	if (likely(!is_link_local_ether_addr(eth_hdr(skb)->h_dest)))
+		dsa_default_offload_fwd_mark(skb);
+
 	return skb;
 }
 
-- 
2.53.0