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net/hyperv: use skb_vlan_tag_*() helpers 

Replace open-coded bitfield manipulation with skb_vlan_tag_*() helpers.
This also enables correctly passing of VLAN.CFI bit.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michał Mirosław 2018-11-20 13:20:32 +01:00 committed by David S. Miller
parent a2e768b861
commit 98ba780e4c
1 changed files with 5 additions and 4 deletions
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9
drivers/net/hyperv/netvsc_drv.c
View File

@ -605,9 +605,9 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
IEEE_8021Q_INFO);
vlan->value = 0;
vlan->vlanid = skb->vlan_tci & VLAN_VID_MASK;
vlan->pri = (skb->vlan_tci & VLAN_PRIO_MASK) >>
VLAN_PRIO_SHIFT;
vlan->vlanid = skb_vlan_tag_get_id(skb);
vlan->cfi = skb_vlan_tag_get_cfi(skb);
vlan->pri = skb_vlan_tag_get_prio(skb);
}
if (skb_is_gso(skb)) {
@ -781,7 +781,8 @@ static struct sk_buff *netvsc_alloc_recv_skb(struct net_device *net,
}
if (vlan) {
u16 vlan_tci = vlan->vlanid | (vlan->pri << VLAN_PRIO_SHIFT);
u16 vlan_tci = vlan->vlanid | (vlan->pri << VLAN_PRIO_SHIFT) |
(vlan->cfi ? VLAN_CFI_MASK : 0);
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
vlan_tci);