[PATCH] net: dsa: Implement flow_dissect callback for tag_qca

[xiaofeis]

Add flow_dissect for qca tagged packet to get the right hash.

Signed-off-by: xiaofeis <xiaof...@codeaurora.org>
---
 net/dsa/tag_qca.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index e886a3c..f4b4de3 100644
--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -113,8 +113,18 @@ static struct sk_buff *qca_tag_rcv(struct sk_buff *skb, 
struct net_device *dev,
        return skb;
 }
 
+static int qca_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
+                                int *offset)
+{
+       *offset = QCA_HDR_LEN;
+       *proto = ((__be16 *)skb->data)[0];
+
+       return 0;
+}
+
 const struct dsa_device_ops qca_netdev_ops = {
        .xmit   = qca_tag_xmit,
        .rcv    = qca_tag_rcv,
+       .flow_dissect = qca_tag_flow_dissect,
        .overhead = QCA_HDR_LEN,
 };
-- 
1.9.1