From ca36181050a523f6c0af3ef7cb509bbbc4ede276 Mon Sep 17 00:00:00 2001 From: Changli Gao Date: Fri, 12 Nov 2010 17:34:17 +0100 Subject: [PATCH] netfilter: xt_NFQUEUE: remove modulo operations Signed-off-by: Changli Gao Acked-by: Eric Dumazet Signed-off-by: Patrick McHardy --- net/netfilter/xt_NFQUEUE.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/netfilter/xt_NFQUEUE.c b/net/netfilter/xt_NFQUEUE.c index 039cce1bde3d..39627706aac6 100644 --- a/net/netfilter/xt_NFQUEUE.c +++ b/net/netfilter/xt_NFQUEUE.c @@ -72,10 +72,12 @@ nfqueue_tg_v1(struct sk_buff *skb, const struct xt_action_param *par) if (info->queues_total > 1) { 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) 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 } return NF_QUEUE_NR(queue); -- 2.39.5