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netfilter: xt_cluster: get rid of xt_cluster_ipv6_is_multicast

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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>
This commit is contained in:
Taehee Yoo
2018-02-11 22:57:29 +09:00
committed by Pablo Neira Ayuso
parent cceae76ef3
commit 580c7d9e4c
1 changed files with 1 additions and 9 deletions
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net/netfilter/xt_cluster.c
+1 -9
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@@ -59,13 +59,6 @@ xt_cluster_hash(const struct nf_conn *ct,
return reciprocal_scale(hash, info->total_nodes);
}
static inline bool
xt_cluster_ipv6_is_multicast(const struct in6_addr *addr)
{
__be32 st = addr->s6_addr32[0];
return ((st & htonl(0xFF000000)) == htonl(0xFF000000));
}
static inline bool
xt_cluster_is_multicast_addr(const struct sk_buff *skb, u_int8_t family)
{
@@ -76,8 +69,7 @@ xt_cluster_is_multicast_addr(const struct sk_buff *skb, u_int8_t family)
is_multicast = ipv4_is_multicast(ip_hdr(skb)->daddr);
break;
case NFPROTO_IPV6:
is_multicast =
xt_cluster_ipv6_is_multicast(&ipv6_hdr(skb)->daddr);
is_multicast = ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr);
break;
default:
WARN_ON(1);