[PATCH net-next] net: tap: use eth_type_vlan in tap_get_user

From: menglong8 . dong
Date: Thu Jan 14 2021 - 02:39:52 EST


From: Menglong Dong <dong.menglong@xxxxxxxxxx>

Replace the check for ETH_P_8021Q and ETH_P_8021AD in
tap_get_user with eth_type_vlan.

Signed-off-by: Menglong Dong <dong.menglong@xxxxxxxxxx>
---
drivers/net/tap.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index 3c652c8ac5ba..cf9197fe3bb6 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -713,8 +713,7 @@ static ssize_t tap_get_user(struct tap_queue *q, void *msg_control,
skb_probe_transport_header(skb);

/* Move network header to the right position for VLAN tagged packets */
- if ((skb->protocol == htons(ETH_P_8021Q) ||
- skb->protocol == htons(ETH_P_8021AD)) &&
+ if (eth_type_vlan(skb->protocol) &&
__vlan_get_protocol(skb, skb->protocol, &depth) != 0)
skb_set_network_header(skb, depth);

--
2.25.1