backport https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1869.patch
see https://github.com/CZ-NIC/knot-resolver/issues/147
Subject: [PATCH] lib/cache: fix excessive logging regression
Regressed in 29b55ceb426efaa and annoyingly logging e.g.:
> [cache ] [35589.02] stash failed, ret = 1
--- a/lib/cache/api.c
+++ b/lib/cache/api.c
@@ -556,15 +556,13 @@ static ssize_t stash_rrset(struct kr_cache *cache, const struct kr_query *qry,
 		return kr_error(EINVAL);
 
 	int ret = kr_ok();
-	if (rrset_has_min_range_or_weird(rr, qry)) {
-		ret = kr_error(ERANGE);
+	if (rrset_has_min_range_or_weird(rr, qry))
 		goto return_needs_pkt;
-	}
 
 	const int wild_labels = rr_sigs == NULL ? 0 :
 	       knot_dname_labels(rr->owner, NULL) - knot_rrsig_labels(rr_sigs->rrs.rdata);
 	if (wild_labels < 0) {
-		ret = kr_error(ERANGE);
+		VERBOSE_MSG(qry, "=> invalid wildcard labels %d\n", wild_labels);
 		goto return_needs_pkt;
 	}
 	const knot_dname_t *encloser = rr->owner; /**< the closest encloser name */
@@ -584,7 +582,7 @@ static ssize_t stash_rrset(struct kr_cache *cache, const struct kr_query *qry,
 			signer_labels = MAX(signer_labels, l);
 		}
 		if (knot_dname_labels(encloser, NULL) < signer_labels) {
-			ret = kr_error(ERANGE);
+			VERBOSE_MSG(qry, "=> invalid wildcard labels %d\n", wild_labels);
 			goto return_needs_pkt;
 		}
 	}
-- 
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