diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 990730c..bb84409 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -1538,36 +1538,19 @@ bytes_richcompare(PyBytesObject *a, PyBytesObject *b, int op)
     int c;
     Py_ssize_t len_a, len_b;
     Py_ssize_t min_len;
-    int rc;
 
     /* Make sure both arguments are strings. */
     if (!(PyBytes_Check(a) && PyBytes_Check(b))) {
         if (_Py_GetConfig()->bytes_warning && (op == Py_EQ || op == Py_NE)) {
-            rc = PyObject_IsInstance((PyObject*)a,
-                                     (PyObject*)&PyUnicode_Type);
-            if (!rc)
-                rc = PyObject_IsInstance((PyObject*)b,
-                                         (PyObject*)&PyUnicode_Type);
-            if (rc < 0)
-                return NULL;
-            if (rc) {
+            if (PyUnicode_Check(a) || PyUnicode_Check(b)) {
                 if (PyErr_WarnEx(PyExc_BytesWarning,
                                  "Comparison between bytes and string", 1))
                     return NULL;
             }
-            else {
-                rc = PyObject_IsInstance((PyObject*)a,
-                                         (PyObject*)&PyLong_Type);
-                if (!rc)
-                    rc = PyObject_IsInstance((PyObject*)b,
-                                             (PyObject*)&PyLong_Type);
-                if (rc < 0)
+            if (PyLong_Check(a) || PyLong_Check(b)) {
+                if (PyErr_WarnEx(PyExc_BytesWarning,
+                                 "Comparison between bytes and int", 1))
                     return NULL;
-                if (rc) {
-                    if (PyErr_WarnEx(PyExc_BytesWarning,
-                                     "Comparison between bytes and int", 1))
-                        return NULL;
-                }
             }
         }
         Py_RETURN_NOTIMPLEMENTED;