From dfddfa8c0c1630e39c8f890390db28dd1daa0368 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 22 Mar 2020 13:58:50 -0700 Subject: [PATCH] net: dsa: Fix duplicate frames flooded by learning [ Upstream commit 0e62f543bed03a64495bd2651d4fe1aa4bcb7fe5 ] When both the switch and the bridge are learning about new addresses, switch ports attached to the bridge would see duplicate ARP frames because both entities would attempt to send them. Fixes: 5037d532b83d ("net: dsa: add Broadcom tag RX/TX handler") Reported-by: Maxime Bizon Signed-off-by: Florian Fainelli Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/dsa/tag_brcm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c index e2aadb73111d..657f7b1af315 100644 --- a/net/dsa/tag_brcm.c +++ b/net/dsa/tag_brcm.c @@ -84,6 +84,8 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev brcm_tag[2] = BRCM_IG_DSTMAP2_MASK; brcm_tag[3] = (1 << p->port) & BRCM_IG_DSTMAP1_MASK; + skb->offload_fwd_mark = 1; + return skb; out_free: