From b2d306542ff935a4edf7a88ba8145c108193442a Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Mon, 14 Mar 2022 18:23:00 +0100 Subject: netfilter: nf_tables: do not reduce read-only expressions Skip register tracking for expressions that perform read-only operations on the registers. Define and use a cookie pointer NFT_REDUCE_READONLY to avoid defining stubs for these expressions. This patch re-enables register tracking which was disabled in ed5f85d42290 ("netfilter: nf_tables: disable register tracking"). Follow up patches add remaining register tracking for existing expressions. Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_last.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/netfilter/nft_last.c') diff --git a/net/netfilter/nft_last.c b/net/netfilter/nft_last.c index 4f745a409d34..43d0d4aadb1f 100644 --- a/net/netfilter/nft_last.c +++ b/net/netfilter/nft_last.c @@ -120,6 +120,7 @@ static const struct nft_expr_ops nft_last_ops = { .destroy = nft_last_destroy, .clone = nft_last_clone, .dump = nft_last_dump, + .reduce = NFT_REDUCE_READONLY, }; struct nft_expr_type nft_last_type __read_mostly = { -- cgit v1.2.3