Since the recent addition of 8021AD, we need to set the new field vlan_proto in
sk_buff. Otherwise, it will trigger BUG() call in vlan_proto_idx().

This patch fixes the problem.

Signed-off-by: Haiyang Zhang <haiya...@microsoft.com>
Reviewed-by: K. Y. Srinivasan <k...@microsoft.com>

---
 drivers/net/hyperv/netvsc_drv.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 088c554..ab2307b 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -31,6 +31,7 @@
 #include <linux/inetdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
+#include <linux/if_vlan.h>
 #include <linux/in.h>
 #include <linux/slab.h>
 #include <net/arp.h>
@@ -284,7 +285,7 @@ int netvsc_recv_callback(struct hv_device *device_obj,
 
        skb->protocol = eth_type_trans(skb, net);
        skb->ip_summed = CHECKSUM_NONE;
-       skb->vlan_tci = packet->vlan_tci;
+       __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), packet->vlan_tci);
 
        net->stats.rx_packets++;
        net->stats.rx_bytes += packet->total_data_buflen;
-- 
1.7.4.1

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