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* [PATCH v1 net-next] teaming: deliver link-local packets with the link they arrive on
@ 2022-02-15 22:05 Jeffrey Ji
  2022-02-17  4:44 ` Jakub Kicinski
  0 siblings, 1 reply; 2+ messages in thread
From: Jeffrey Ji @ 2022-02-15 22:05 UTC (permalink / raw)
  To: Eric Dumazet, David S . Miller
  Cc: Brian Vazquez, linux-kernel, netdev, Jakub Kicinski,
	Mahesh Bandewar, jeffreyji

From: jeffreyji <jeffreyji@google.com>

skb is ignored if team port is disabled. We want the skb to be delivered
if it's an LLDP packet.

Issue is already fixed for bonding in commit
b89f04c61efe3b7756434d693b9203cc0cce002e

Signed-off-by: jeffreyji <jeffreyji@google.com>
---
 drivers/net/team/team.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 8b2adc56b92a..24d66dfbb2e1 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -734,6 +734,12 @@ static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
 	port = team_port_get_rcu(skb->dev);
 	team = port->team;
 	if (!team_port_enabled(port)) {
+		if (is_link_local_ether_addr(eth_hdr(skb)->h_dest))
+			/*
+			 * link-local packets are mostly useful when stack
+			 * receives them with the link they arrive on.
+			 */
+			return RX_HANDLER_PASS;
 		/* allow exact match delivery for disabled ports */
 		res = RX_HANDLER_EXACT;
 	} else {
-- 
2.35.1.265.g69c8d7142f-goog


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