@@ -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) {
No need to have the datapath call the always-true comment match stub. Signed-off-by: Florian Westphal <fw@strlen.de> --- net/netfilter/nft_compat.c | 9 +++++++++ 1 file changed, 9 insertions(+)