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authorFlorian Westphal <fw@strlen.de>2017-12-07 16:28:25 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2018-01-08 18:01:10 +0100
commitbb4badf3a3dc81190f7c1c1fa063cdefb18df45f (patch)
treedb9c5d83c02ee83d0137a9b52d369d9948798660 /net
parentef57170bbfdd6958281011332b1fd237712f69f0 (diff)
netfilter: don't allocate space for decnet hooks unless needed
no need to define hook points if the family isn't supported. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/core.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 43643427b560..4738d0d0ebac 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -283,10 +283,12 @@ static struct nf_hook_entries __rcu **nf_hook_entry_head(struct net *net, const
if (WARN_ON_ONCE(ARRAY_SIZE(net->nf.hooks_ipv6) <= reg->hooknum))
return NULL;
return net->nf.hooks_ipv6 + reg->hooknum;
+#if IS_ENABLED(CONFIG_DECNET)
case NFPROTO_DECNET:
if (WARN_ON_ONCE(ARRAY_SIZE(net->nf.hooks_decnet) <= reg->hooknum))
return NULL;
return net->nf.hooks_decnet + reg->hooknum;
+#endif
default:
WARN_ON_ONCE(1);
return NULL;
@@ -573,7 +575,9 @@ static int __net_init netfilter_net_init(struct net *net)
__netfilter_net_init(net->nf.hooks_ipv6, ARRAY_SIZE(net->nf.hooks_ipv6));
__netfilter_net_init(net->nf.hooks_arp, ARRAY_SIZE(net->nf.hooks_arp));
__netfilter_net_init(net->nf.hooks_bridge, ARRAY_SIZE(net->nf.hooks_bridge));
+#if IS_ENABLED(CONFIG_DECNET)
__netfilter_net_init(net->nf.hooks_decnet, ARRAY_SIZE(net->nf.hooks_decnet));
+#endif
#ifdef CONFIG_PROC_FS
net->nf.proc_netfilter = proc_net_mkdir(net, "netfilter",