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

Instead of manual array registration.

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

1 files changed, 4 insertions, 0 deletions

diff --git a/src/expr/cmp.c b/src/expr/cmp.c
index 3f795bc..f49261f 100644
--- a/src/expr/cmp.c
+++ b/src/expr/cmp.c
@@ -305,3 +305,7 @@ struct expr_ops expr_ops_cmp = {
 	.snprintf	= nft_rule_expr_cmp_snprintf,
 	.xml_parse	= nft_rule_expr_cmp_xml_parse,
 };
+static void __init expr_cmp_init(void)
+{
+	nft_expr_ops_register(&expr_ops_cmp);
+}