From 22e8b65ea4bf8a1fa757137bdcbdefe505fa4044 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 7 Aug 2017 16:35:43 +0200 Subject: [PATCH 39/57] net-next: dsa: add flow_dissect callback to struct dsa_device_ops When the flow dissector first sees packets coming in on a DSA devices the 802.3 header wont be located where the code expects it to be as the tag is still present. Adding this new callback allows a DSA device to provide a new function that the flow_disscetor can use to get the correct offsets for the protocol field and network header offset. Signed-off-by: John Crispin --- include/net/dsa.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -90,9 +90,11 @@ struct packet_type; struct dsa_device_ops { struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); - int sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, + int (*rcv)(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev); + int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, + int *offset); }; struct dsa_switch_tree {