---

yaml
---
r: 222040
b: refs/heads/master
c: 0a85df0
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 167c25e4c5501f8b7e37f949d23652975c5a769c
+refs/heads/master: 0a85df004667c99efc31fab07386823eefce3be5

trunk/include/linux/if_vlan.h

@@ -339,6 +339,31 @@ static inline int vlan_get_tag(const struct sk_buff *skb, u16 *vlan_tci)
 	}
 }
 
+/**
+ * vlan_get_protocol - get protocol EtherType.
+ * @skb: skbuff to query
+ *
+ * Returns the EtherType of the packet, regardless of whether it is
+ * vlan encapsulated (normal or hardware accelerated) or not.
+ */
+static inline __be16 vlan_get_protocol(const struct sk_buff *skb)
+{
+	__be16 protocol = 0;
+
+	if (vlan_tx_tag_present(skb) ||
+	     skb->protocol != cpu_to_be16(ETH_P_8021Q))
+		protocol = skb->protocol;
+	else {
+		__be16 proto, *protop;
+		protop = skb_header_pointer(skb, offsetof(struct vlan_ethhdr,
+						h_vlan_encapsulated_proto),
+						sizeof(proto), &proto);
+		if (likely(protop))
+			protocol = *protop;
+	}
+
+	return protocol;
+}
 #endif /* __KERNEL__ */
 
 /* VLAN IOCTLs are found in sockios.h */