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Date: Sat, 21 May 2016 15:50:03 +0300 From: Shmulik Ladkani <shmulik.ladkani@...il.com> To: netdev@...r.kernel.org Subject: Missing INET6_PROTO_FINAL in l2tp_ip6_protocol? Hi, inet6_protocol's INET6_PROTO_FINAL flag denotes handler is expected not to request resubmission for local delivery. For an INET6_PROTO_FINAL handler, the following actions gets executed prior delivery, in ip6_input_finish: nf_reset(skb); skb_postpull_rcsum(skb, skb_network_header(skb), skb_network_header_len(skb)); For some reason, l2tp_ip6_protocol handler is NOT marked as INET6_PROTO_FINAL. Probably an oversight. Since 'l2tp_ip6_recv' never results in a resubmission, the above actions are not applied to skbs passed to l2tp_ip6. Any reason why l2tp_ip6_protocol should NOT be marked INET6_PROTO_FINAL? What's the consequences not executing the above actions for l2tp_ip6 packets? Thanks, Shmulik
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