net: openvswitch: Fix kerneldoc warnings

net/openvswitch/flow.c:303: warning: Function parameter or member 'key_vh' not described in 'parse_vlan_tag'
net/openvswitch/flow.c:303: warning: Function parameter or member 'skb' not described in 'parse_vlan_tag'
net/openvswitch/flow.c:303: warning: Function parameter or member 'untag_vlan' not described in 'parse_vlan_tag'
net/openvswitch/vport.c:122: warning: Function parameter or member 'parms' not described in 'ovs_vport_alloc'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028004849.930094-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index b03d142..c7f34d6 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -294,6 +294,10 @@ static bool icmp6hdr_ok(struct sk_buff *skb)
 
 /**
  * Parse vlan tag from vlan header.
+ * @skb: skb containing frame to parse
+ * @key_vh: pointer to parsed vlan tag
+ * @untag_vlan: should the vlan header be removed from the frame
+ *
  * Returns ERROR on memory error.
  * Returns 0 if it encounters a non-vlan or incomplete packet.
  * Returns 1 after successfully parsing vlan tag.