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-rw-r--r--hurd/hurd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/hurd/hurd.h b/hurd/hurd.h
index cd7a149c5e..8f1fdf4a64 100644
--- a/hurd/hurd.h
+++ b/hurd/hurd.h
@@ -92,6 +92,7 @@ extern sigset_t _hurdsig_traced;
 
 /* Shorthand macro for internal library code referencing _hurd_ports (see
    <hurd/port.h>).  */
+/* Also see __USEPORT_CANCEL.  */
 
 #define	__USEPORT(which, expr) \
   HURD_PORT_USE (&_hurd_ports[INIT_PORT_##which], (expr))