Commit 0e62f543 authored Mar 22, 2020 by Florian Fainelli Committed by David S. Miller Mar 23, 2020

net: dsa: Fix duplicate frames flooded by learning



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: 5037d532 ("net: dsa: add Broadcom tag RX/TX handler")
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 39a8f2a8

net/dsa/tag_brcm.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -140,6 +140,8 @@ static struct sk_buff brcm_tag_rcv_ll(struct sk_buff skb,
		/* Remove Broadcom tag and update checksum */
		skb_pull_rcsum(skb, BRCM_TAG_LEN);

		skb->offload_fwd_mark = 1;

		return skb;
		}
		#endif

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