[09/14] flow_dissector: detect DSA using skb->protocol even when VLAN tag is present

Message ID 20221107185452.90711-9-nbd@nbd.name
State New
Headers
Series [01/14] net: ethernet: mtk_eth_soc: account for vlan in rx header length |

Commit Message

Felix Fietkau Nov. 7, 2022, 6:54 p.m. UTC
  Fixes flow dissection with ethernet devices that can combine VLAN rx hwaccel
with DSA, since skb->protocol is set to htons(ETH_P_XDSA) by the network stack.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 net/core/flow_dissector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
  

Patch

diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 25cd35f5922e..43f6bbca7447 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -970,7 +970,7 @@  bool __skb_flow_dissect(const struct net *net,
 		hlen = skb_headlen(skb);
 #if IS_ENABLED(CONFIG_NET_DSA)
 		if (unlikely(skb->dev && netdev_uses_dsa(skb->dev) &&
-			     proto == htons(ETH_P_XDSA))) {
+			     skb->protocol == htons(ETH_P_XDSA))) {
 			const struct dsa_device_ops *ops;
 			int offset = 0;