[rtems commit] Fix pedanic warnings without a storage increase

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    dad6d32271ea919e18abe3e18496ea88e282c53c
Changeset: http://git.rtems.org/rtems/commit/?id=dad6d32271ea919e18abe3e18496ea88e282c53c

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Tue Aug 30 07:58:56 2022 +0200

Fix pedanic warnings without a storage increase

Use RTEMS_ZERO_LENGTH_ARRAY for flexible array member.

Update #4662.

---

 cpukit/include/rtems/confdefs/scheduler.h      | 10 ++++++++++
 cpukit/include/rtems/score/schedulerpriority.h |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/cpukit/include/rtems/confdefs/scheduler.h b/cpukit/include/rtems/confdefs/scheduler.h
index 84ca810fd7..8ac943921f 100644
--- a/cpukit/include/rtems/confdefs/scheduler.h
+++ b/cpukit/include/rtems/confdefs/scheduler.h
@@ -234,7 +234,17 @@ extern "C" {
 #endif
 
 #ifdef CONFIGURE_SCHEDULER
+  /*
+   * Ignore these warnings:
+   *
+   * - invalid use of structure with flexible array member
+   *
+   * - struct has no members
+   */
+  #pragma GCC diagnostic push
+  #pragma GCC diagnostic ignored "-Wpedantic"
   CONFIGURE_SCHEDULER;
+  #pragma GCC diagnostic pop
 #endif
 
 const Scheduler_Control _Scheduler_Table[] = {
diff --git a/cpukit/include/rtems/score/schedulerpriority.h b/cpukit/include/rtems/score/schedulerpriority.h
index e485e97c60..1325224fa9 100644
--- a/cpukit/include/rtems/score/schedulerpriority.h
+++ b/cpukit/include/rtems/score/schedulerpriority.h
@@ -94,7 +94,7 @@ typedef struct {
   /**
    * @brief One ready queue per priority level.
    */
-  Chain_Control Ready[ 1 ];
+  Chain_Control Ready[ RTEMS_ZERO_LENGTH_ARRAY ];
 } Scheduler_priority_Context;
 
 /**