diff --git a/lib/accesslib.php b/lib/accesslib.php
index fe55d4e85bc..520ec92eef8 100644
--- a/lib/accesslib.php
+++ b/lib/accesslib.php
@@ -7294,50 +7294,6 @@ function get_sorted_contexts($select, $params = array()) {
             ", $params);
 }
 
-/**
- * This is really slow!!! do not use above course context level
- *
- * @deprecated since 2.2
- * @param int $roleid
- * @param context $context
- * @return array
- */
-function get_role_context_caps($roleid, context $context) {
-    global $DB;
-
-    //this is really slow!!!! - do not use above course context level!
-    $result = array();
-    $result[$context->id] = array();
-
-    // first emulate the parent context capabilities merging into context
-    $searchcontexts = array_reverse($context->get_parent_context_ids(true));
-    foreach ($searchcontexts as $cid) {
-        if ($capabilities = $DB->get_records('role_capabilities', array('roleid'=>$roleid, 'contextid'=>$cid))) {
-            foreach ($capabilities as $cap) {
-                if (!array_key_exists($cap->capability, $result[$context->id])) {
-                    $result[$context->id][$cap->capability] = 0;
-                }
-                $result[$context->id][$cap->capability] += $cap->permission;
-            }
-        }
-    }
-
-    // now go through the contexts below given context
-    $searchcontexts = array_keys($context->get_child_contexts());
-    foreach ($searchcontexts as $cid) {
-        if ($capabilities = $DB->get_records('role_capabilities', array('roleid'=>$roleid, 'contextid'=>$cid))) {
-            foreach ($capabilities as $cap) {
-                if (!array_key_exists($cap->contextid, $result)) {
-                    $result[$cap->contextid] = array();
-                }
-                $result[$cap->contextid][$cap->capability] = $cap->permission;
-            }
-        }
-    }
-
-    return $result;
-}
-
 /**
  * Gets a string for sql calls, searching for stuff in this context or above
  *
diff --git a/lib/deprecatedlib.php b/lib/deprecatedlib.php
index 7b6bb02771f..975f2d353df 100644
--- a/lib/deprecatedlib.php
+++ b/lib/deprecatedlib.php
@@ -4217,3 +4217,48 @@ function get_user_courses_bycap($userid, $cap, $accessdata_ignored, $doanything_
 
     return $courses;
 }
+
+/**
+ * This is really slow!!! do not use above course context level
+ *
+ * @deprecated since Moodle 2.2
+ * @param int $roleid
+ * @param context $context
+ * @return array
+ */
+function get_role_context_caps($roleid, context $context) {
+    global $DB;
+    debugging('get_role_context_caps() is deprecated, it is really slow. Don\'t use it.', DEBUG_DEVELOPER);
+
+    // This is really slow!!!! - do not use above course context level.
+    $result = array();
+    $result[$context->id] = array();
+
+    // First emulate the parent context capabilities merging into context.
+    $searchcontexts = array_reverse($context->get_parent_context_ids(true));
+    foreach ($searchcontexts as $cid) {
+        if ($capabilities = $DB->get_records('role_capabilities', array('roleid'=>$roleid, 'contextid'=>$cid))) {
+            foreach ($capabilities as $cap) {
+                if (!array_key_exists($cap->capability, $result[$context->id])) {
+                    $result[$context->id][$cap->capability] = 0;
+                }
+                $result[$context->id][$cap->capability] += $cap->permission;
+            }
+        }
+    }
+
+    // Now go through the contexts below given context.
+    $searchcontexts = array_keys($context->get_child_contexts());
+    foreach ($searchcontexts as $cid) {
+        if ($capabilities = $DB->get_records('role_capabilities', array('roleid'=>$roleid, 'contextid'=>$cid))) {
+            foreach ($capabilities as $cap) {
+                if (!array_key_exists($cap->contextid, $result)) {
+                    $result[$cap->contextid] = array();
+                }
+                $result[$cap->contextid][$cap->capability] = $cap->permission;
+            }
+        }
+    }
+
+    return $result;
+}
diff --git a/lib/upgrade.txt b/lib/upgrade.txt
index 2257ef79e66..0a680c3cc91 100644
--- a/lib/upgrade.txt
+++ b/lib/upgrade.txt
@@ -28,6 +28,7 @@ information provided here is intended especially for developers.
 * get_context_url() is deprecated, please use $context->get_url().
 * get_course_context() is deprecated, please use $context->get_course_context().
 * get_user_courses_bycap() is deprecated, please use enrol_get_users_courses().
+* get_role_context_caps() is deprecated, it is really slow. Don't use it.
 
 === 2.5.1 ===