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-rw-r--r--net/netfilter/nf_conntrack_helper.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 6d32399d64e1..dc352f509477 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -145,7 +145,7 @@ void nf_conntrack_helper_unregister(struct nf_conntrack_helper *me)
}
EXPORT_SYMBOL_GPL(nf_conntrack_helper_unregister);
-struct nf_ct_ext_type helper_extend = {
+static struct nf_ct_ext_type helper_extend __read_mostly = {
.len = sizeof(struct nf_conn_help),
.align = __alignof__(struct nf_conn_help),
.id = NF_CT_EXT_HELPER,