expr: use __attribute__((constructor)) to register expression

Instead of manual array registration.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/expr/lookup.c b/src/expr/lookup.c
index 9babfd1..9495ab0 100644
--- a/src/expr/lookup.c
+++ b/src/expr/lookup.c
@@ -261,3 +261,8 @@ struct expr_ops expr_ops_lookup = {
 	.snprintf	= nft_rule_expr_lookup_snprintf,
 	.xml_parse	= nft_rule_expr_lookup_xml_parse,
 };
+
+static void __init expr_lookup_init(void)
+{
+	nft_expr_ops_register(&expr_ops_lookup);
+}