netfilter: xt_cluster: get rid of xt_cluster_ipv6_is_multicast
If use the ipv6_addr_is_multicast instead of xt_cluster_ipv6_is_multicast, then we can reduce code size. Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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@ -59,13 +59,6 @@ xt_cluster_hash(const struct nf_conn *ct,
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return reciprocal_scale(hash, info->total_nodes);
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}
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static inline bool
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xt_cluster_ipv6_is_multicast(const struct in6_addr *addr)
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{
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__be32 st = addr->s6_addr32[0];
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return ((st & htonl(0xFF000000)) == htonl(0xFF000000));
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}
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static inline bool
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xt_cluster_is_multicast_addr(const struct sk_buff *skb, u_int8_t family)
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{
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@ -76,8 +69,7 @@ xt_cluster_is_multicast_addr(const struct sk_buff *skb, u_int8_t family)
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is_multicast = ipv4_is_multicast(ip_hdr(skb)->daddr);
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break;
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case NFPROTO_IPV6:
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is_multicast =
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xt_cluster_ipv6_is_multicast(&ipv6_hdr(skb)->daddr);
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is_multicast = ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr);
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break;
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default:
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WARN_ON(1);
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