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authorHaiyang Zhang <haiyangz@microsoft.com>2013-06-17 15:36:49 -0700
committerDavid S. Miller <davem@davemloft.net>2013-06-17 15:58:11 -0700
commit93725cbd22ed716bea8dc479b4925d40a4dbd0c6 (patch)
treec598fcb86140fded02aa0554bbb1fb0e5b5d6229 /drivers/net/hyperv
parent7aa27238417a34ec9be2d8eff05ceff319f2d39b (diff)
Fix the VLAN_TAG_PRESENT in netvsc_recv_callback()
We should call __vlan_hwaccel_put_tag() only if the packet comes from vlan, otherwise VLAN_TAG_PRESENT will always be added. Reported-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/netvsc_drv.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index ab2307b5d9a7..4dccead586be 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -285,7 +285,9 @@ int netvsc_recv_callback(struct hv_device *device_obj,
skb->protocol = eth_type_trans(skb, net);
skb->ip_summed = CHECKSUM_NONE;
- __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), packet->vlan_tci);
+ if (packet->vlan_tci & VLAN_TAG_PRESENT)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+ packet->vlan_tci);
net->stats.rx_packets++;
net->stats.rx_bytes += packet->total_data_buflen;