diff --git a/drivers/net/telnet.c b/drivers/net/telnet.c
index 5831c7b0adb..08209906949 100644
--- a/drivers/net/telnet.c
+++ b/drivers/net/telnet.c
@@ -890,6 +890,8 @@ static ssize_t telnet_read(FAR struct file *filep, FAR char *buffer,
 
   do
     {
+      FAR const char *src;
+
       if (priv->td_pending == 0)
         {
           if (filep->f_oflags & O_NONBLOCK)
@@ -919,7 +921,7 @@ static ssize_t telnet_read(FAR struct file *filep, FAR char *buffer,
 
       /* Process the buffered telnet data */
 
-      FAR const char *src = &priv->td_rxbuffer[priv->td_offset];
+      src = &priv->td_rxbuffer[priv->td_offset];
       ret = telnet_receive(priv, src, priv->td_pending, buffer, len);
 
       nxsem_post(&priv->td_exclsem);
diff --git a/include/nuttx/signal.h b/include/nuttx/signal.h
index 99dcf858ee7..d3cfcd337cd 100644
--- a/include/nuttx/signal.h
+++ b/include/nuttx/signal.h
@@ -468,7 +468,8 @@ int nxsig_usleep(useconds_t usec);
  *           the client.
  *   code  - Source: SI_USER, SI_QUEUE, SI_TIMER, SI_ASYNCIO, or SI_MESGQ
  *   work  - The work structure to queue.  Must be non-NULL if
- *           event->sigev_notify == SIGEV_THREAD
+ *           event->sigev_notify == SIGEV_THREAD.  Ignored if
+ *           CONFIG_SIG_EVTHREAD is not defined.
  *
  * Returned Value:
  *   This is an internal OS interface and should not be used by applications.
diff --git a/sched/signal/sig_notification.c b/sched/signal/sig_notification.c
index 9067e7220d3..b1f19c97869 100644
--- a/sched/signal/sig_notification.c
+++ b/sched/signal/sig_notification.c
@@ -101,7 +101,8 @@ static void nxsig_notification_worker(FAR void *arg)
  *           the client.
  *   code  - Source: SI_USER, SI_QUEUE, SI_TIMER, SI_ASYNCIO, or SI_MESGQ
  *   work  - The work structure to queue.  Must be non-NULL if
- *           event->sigev_notify == SIGEV_THREAD
+ *           event->sigev_notify == SIGEV_THREAD.  Ignored if
+ *           CONFIG_SIG_EVTHREAD is not defined.
  *
  * Returned Value:
  *   This is an internal OS interface and should not be used by applications.