diff --git a/net/core/filter.c b/net/core/filter.c
index 0eb8c4466eaa001bad837087e72df34685778c9a..0e3622f1dcb1eac6b3eea810e32806edf669d497 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -350,7 +350,9 @@ unsigned int sk_run_filter(const struct sk_buff *skb,
 			continue;
 		}
 		default:
-			WARN_ON(1);
+			WARN_RATELIMIT(1, "Unknown code:%u jt:%u tf:%u k:%u\n",
+				       fentry->code, fentry->jt,
+				       fentry->jf, fentry->k);
 			return 0;
 		}
 	}