From: Florian Westphal <fw@xxxxxxxxx>
No need to have the datapath call the always-true comment match stub.
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/netfilter/nft_compat.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index f69cc73c5813..5a46d8289d1d 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -731,6 +731,14 @@ static const struct nfnetlink_subsystem nfnl_compat_subsys = {
static struct nft_expr_type nft_match_type;
+static bool nft_match_reduce(struct nft_regs_track *track,
+ const struct nft_expr *expr)
+{
+ const struct xt_match *match = expr->ops->data;
+
+ return strcmp(match->name, "comment") == 0;
+}
+
static const struct nft_expr_ops *
nft_match_select_ops(const struct nft_ctx *ctx,
const struct nlattr * const tb[])
@@ -773,6 +781,7 @@ nft_match_select_ops(const struct nft_ctx *ctx,
ops->dump = nft_match_dump;
ops->validate = nft_match_validate;
ops->data = match;
+ ops->reduce = nft_match_reduce;
matchsize = NFT_EXPR_SIZE(XT_ALIGN(match->matchsize));
if (matchsize > NFT_MATCH_LARGE_THRESH) {
--
2.30.2
