add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/net/ipv6/datagram.c
..
..
@@ -51,7 +51,7 @@
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 	fl6->flowi6_mark = sk->sk_mark;
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 	fl6->fl6_dport = inet->inet_dport;
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 	fl6->fl6_sport = inet->inet_sport;
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-	fl6->flowlabel = np->flow_label;
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+	fl6->flowlabel = ip6_make_flowinfo(np->tclass, np->flow_label);
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 	fl6->flowi6_uid = sk->sk_uid;
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 	if (!fl6->flowi6_oif)