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netfilter: xt_NFQUEUE: remove modulo operations

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Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Changli Gao 2010-11-12 17:34:17 +01:00 committed by Patrick McHardy
parent e5fc9e7a66
commit ca36181050
1 changed files with 4 additions and 2 deletions
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6
net/netfilter/xt_NFQUEUE.c
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@ -72,10 +72,12 @@ nfqueue_tg_v1(struct sk_buff *skb, const struct xt_action_param *par)
if (info->queues_total > 1) { if (info->queues_total > 1) {
if (par->family == NFPROTO_IPV4) if (par->family == NFPROTO_IPV4)
queue = hash_v4(skb) % info->queues_total + queue; queue = (((u64) hash_v4(skb) * info->queues_total) >>
32) + queue;
#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE) #if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
else if (par->family == NFPROTO_IPV6) else if (par->family == NFPROTO_IPV6)
queue = hash_v6(skb) % info->queues_total + queue; queue = (((u64) hash_v6(skb) * info->queues_total) >>
32) + queue;
#endif #endif
} }
return NF_QUEUE_NR(queue); return NF_QUEUE_NR(queue);