677bf08cfdf9 ("udp: drop skb extensions before marking skb stateless")
174e23810cd3 ("sk_buff: drop all skb extensions on free and skb scrubbing")
d312d0a6846a ("net: drop the unused helper skb_ext_get()")
df5042f4c5b9 ("sk_buff: add skb extension infrastructure")
d58e468b1112 ("flow_dissector: implements flow dissector BPF hook")