For a picked up connection, the window scaling option is also lost, because this option is only valid in SYN or SYN/ACK segments. We should remove the useless expression to save the CPU power. Signed-off-by: Changli Gao <xiaosuo@xxxxxxxxx> --- net/netfilter/nf_conntrack_proto_tcp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index 361eade..22f0500 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -584,7 +584,6 @@ static bool tcp_in_window(const struct nf_conn *ct, * Let's try to use the data from the packet. */ sender->td_end = end; - win <<= sender->td_scale; sender->td_maxwin = (win == 0 ? 1 : win); sender->td_maxend = end + sender->td_maxwin; /* -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
