GRO_CONSUMED was added in kernel commit 25393d3fc055 ("net: Prepare gro 
for packet consuming gro callbacks") in kernel 4.11. Just remove it for 
older kernel versions.

--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -924,7 +924,9 @@ void wil_netif_rx(struct sk_buff *skb, s
 		[GRO_HELD]		= "GRO_HELD",
 		[GRO_NORMAL]		= "GRO_NORMAL",
 		[GRO_DROP]		= "GRO_DROP",
+#if LINUX_VERSION_IS_GEQ(4,11,0)
 		[GRO_CONSUMED]		= "GRO_CONSUMED",
+#endif /* > 4.11 */
 	};
 
 	if (wdev->iftype == NL80211_IFTYPE_STATION) {