diff --git a/src/gmp_get.h b/src/gmp_get.h
index e73019d0b0..f6001736bc 100644
--- a/src/gmp_get.h
+++ b/src/gmp_get.h
@@ -66,7 +66,6 @@ send_get_start (const char *, int (*) (const char *, void *), void *);
  * @brief Send start of GET response to client, returning on fail.
  *
  * @param[in]  type  Type of resource.
- * @param[in]  get   GET data.
  */
 #define SEND_GET_START(type)                               \
   do                                                       \
diff --git a/src/manage.h b/src/manage.h
index abcbb00234..01c864eecb 100644
--- a/src/manage.h
+++ b/src/manage.h
@@ -1171,9 +1171,6 @@ result_detection_reference (result_t, report_t, const char *, const char *,
 
 /* Reports. */
 
-/** @todo How is this documented? */
-#define OVAS_MANAGE_REPORT_ID_LENGTH UUID_LEN_STR
-
 /**
  * @brief Default apply_overrides setting
  */
diff --git a/src/manage_sql.c b/src/manage_sql.c
index d51403187d..1efbe7dc3c 100644
--- a/src/manage_sql.c
+++ b/src/manage_sql.c
@@ -262,10 +262,10 @@ static gchar*
 vulns_extra_where (int);
 
 static gchar*
-vuln_iterator_opts_from_filter (const char*);
+vuln_iterator_opts_from_filter (const gchar *);
 
 static gchar*
-vuln_iterator_extra_with_from_filter ();
+vuln_iterator_extra_with_from_filter (const gchar *);
 
 static int
 task_last_report_any_status (task_t, report_t *);
@@ -22340,6 +22340,9 @@ where_qod (int min_qod)
     { NULL, NULL, KEYWORD_TYPE_UNKNOWN }                                      \
   }
 
+/**
+ * @brief SQL for result iterator column.
+ */
 #define RESULT_HOSTNAME_SQL(hostname_col, host_col, report_col)               \
       "(CASE WHEN (" hostname_col " IS NULL) "                                \
       "           OR (" hostname_col " = '')"                                 \
@@ -55551,7 +55554,6 @@ user_resources_in_use (user_t user,
  * @param[in]  task_id    UUID of the task to limit vulns to.
  * @param[in]  report_id  UUID of the report to limit vulns to.
  * @param[in]  host       IP address of the task to limit vulns to.
- * @param[in]  min_qod    Minimum QoD.
  *
  * @return Newly allocated string with the extra_with clause.
  */
@@ -55948,6 +55950,8 @@ vuln_count (const get_data_t *get)
 /**
  * @brief Extra WHERE clause for vulns.
  *
+ * @param[in]  min_qod  Min QOD.
+ *
  * @return WHERE clause.
  */
 static gchar*
@@ -57956,7 +57960,8 @@ type_extra_where (const char *type, int trash, const char *filter,
 /**
  * @brief Get the extra WITH clauses for a resource type.
  *
- * @param[in]  type  The resource type.
+ * @param[in]  type    The resource type.
+ * @param[in]  filter  Filter term.
  *
  * @return The extra WITH clauses.
  */
@@ -57965,7 +57970,7 @@ type_extra_with (const char *type, const char *filter)
 {
   if (strcasecmp (type, "VULN") == 0)
     {
-      return vuln_iterator_extra_with_from_filter(filter);
+      return vuln_iterator_extra_with_from_filter (filter);
     }
   return NULL;
 }
diff --git a/src/manage_sql_report_configs.h b/src/manage_sql_report_configs.h
index 065d4a8c1b..d5fe578a74 100644
--- a/src/manage_sql_report_configs.h
+++ b/src/manage_sql_report_configs.h
@@ -44,9 +44,4 @@ restore_report_config (const char *);
 void
 delete_report_configs_user (user_t);
 
-gboolean
-inherit_report_configs (user_t, user_t);
-
-
-
 #endif /* not _GVMD_MANAGE_SQL_REPORT_CONFIGS_H */
diff --git a/src/manage_sql_report_formats.c b/src/manage_sql_report_formats.c
index 6a901aaf8f..1579b3a716 100644
--- a/src/manage_sql_report_formats.c
+++ b/src/manage_sql_report_formats.c
@@ -3087,7 +3087,7 @@ report_format_alert_iterator_readable (iterator_t* iterator)
  * Iterates over all report configs that use the Report Format.
  *
  * @param[in]  iterator          Iterator.
- * @param[in]  report_format     Report Format.
+ * @param[in]  report_format_id  Report Format.
  */
 void
 init_report_format_report_config_iterator (iterator_t* iterator,
diff --git a/src/manage_sql_secinfo.c b/src/manage_sql_secinfo.c
index 342c836f17..455fc3dbc1 100644
--- a/src/manage_sql_secinfo.c
+++ b/src/manage_sql_secinfo.c
@@ -196,6 +196,8 @@ increment_transaction_size (int* current_size)
 
 /**
  * @brief Get the SQL buffer size threshold converted from MiB to bytes.
+ *
+ * @return Number of bytes.
  */
 int
 setting_secinfo_sql_buffer_threshold_bytes ()
@@ -471,7 +473,6 @@ init_cpe_info_iterator (iterator_t* iterator, get_data_t *get, const char *name)
  *
  * @param[in]  iterator        Iterator.
  * @param[in]  get             GET data.
- * @param[in]  name            Name of the info
  *
  * @return 0 success, 1 failed to find target, 2 failed to find filter,
  *         -1 error.
@@ -716,7 +717,6 @@ init_cve_info_iterator (iterator_t* iterator, get_data_t *get, const char *name)
  *
  * @param[in]  iterator        Iterator.
  * @param[in]  get             GET data.
- * @param[in]  name            Name of the info
  *
  * @return 0 success, 1 failed to find target, 2 failed to find filter,
  *         -1 error.
@@ -3209,8 +3209,6 @@ check_cert_db_version ()
 
 /**
  * @brief Update timestamp in CERT db from feed timestamp.
- *
- * @return 0 success, -1 error.
  */
 static void
 update_cert_timestamp ()
@@ -3482,8 +3480,6 @@ check_scap_db_version ()
 
 /**
  * @brief Update timestamp in SCAP db from feed timestamp.
- *
- * @return 0 success, -1 error.
  */
 static void
 update_scap_timestamp ()
diff --git a/src/schema_formats/XML/GMP.xml.in b/src/schema_formats/XML/GMP.xml.in
index 5dd097f664..ba7bba56fc 100644
--- a/src/schema_formats/XML/GMP.xml.in
+++ b/src/schema_formats/XML/GMP.xml.in
@@ -6107,6 +6107,7 @@ END:VCALENDAR
       <o><e>hosts</e></o>
       <o><e>password</e></o>
       <any><e>role</e></any>
+      <o><e>sources</e></o>
     </pattern>
     <ele>
       <name>name</name>
@@ -6153,6 +6154,29 @@ END:VCALENDAR
         </attrib>
       </pattern>
     </ele>
+    <ele>
+      <name>sources</name>
+      <summary>List of authentication sources for this user (if omitted then 'file')</summary>
+      <description>
+        <p>
+          'file' means to store the user in the database.
+        </p>
+      </description>
+      <pattern>
+        <any><e>source</e></any>
+      </pattern>
+      <ele>
+        <name>source</name>
+        <summary>Authentication source</summary>
+        <pattern>
+          <alts>
+            <alt>file</alt>
+            <alt>ldap_connect</alt>
+            <alt>radius_connect</alt>
+          </alts>
+        </pattern>
+      </ele>
+    </ele>
     <response>
       <pattern>
         <attrib>
@@ -27870,6 +27894,11 @@ END:VCALENDAR
     <ele>
       <name>sources</name>
       <summary>List of authentication sources for this user (if omitted, no changes)</summary>
+      <description>
+        <p>
+          'file' means to store the user in the database.
+        </p>
+      </description>
       <pattern>
         <any><e>source</e></any>
       </pattern>