[PATCH 1/5] netfilter: nf_tables: Stack expression type depending on their family

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To ensure family tight expression gets selected in priority to family
agnostic ones.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@xxxxxxxxxxxxxxx>
---
 net/netfilter/nf_tables_api.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 33045a5..700a522 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1093,7 +1093,10 @@ static void nft_ctx_init(struct nft_ctx *ctx,
 int nft_register_expr(struct nft_expr_type *type)
 {
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
-	list_add_tail(&type->list, &nf_tables_expressions);
+	if (type->family == NFPROTO_UNSPEC)
+		list_add_tail(&type->list, &nf_tables_expressions);
+	else
+		list_add(&type->list, &nf_tables_expressions);
 	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 	return 0;
 }
-- 
1.8.3.2

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