score: Inline _API_extensions_Run_postswitch()

The _API_extensions_Run_postswitch() function is only used in
_Thread_Dispatch().   Avoid superfluous load of _Thread_Executing.

cpukit/score/include/rtems/score/apiext.h

@@ -130,7 +130,21 @@ void _API_extensions_Run_postdriver( void );
  *
  *  This routine executes all of the post context switch callouts.
  */
-void _API_extensions_Run_postswitch( void );
+static inline void _API_extensions_Run_postswitch( Thread_Control *executing )
+{
+  const Chain_Control *chain = &_API_extensions_List;
+  const Chain_Node    *tail = _Chain_Immutable_tail( chain );
+  const Chain_Node    *node = _Chain_Immutable_first( chain );
+
+  while ( node != tail ) {
+    const API_extensions_Control *extension =
+      (const API_extensions_Control *) node;
+
+    (*extension->postswitch_hook)( executing );
+
+    node = _Chain_Immutable_next( node );
+  }
+}
 
 /**@}*/
 

cpukit/score/src/apiext.c

@@ -84,23 +84,4 @@ void _API_extensions_Run_postdriver( void )
   }
 }
 
-/*
- *  _API_extensions_Run_postswitch
- */
-
-void _API_extensions_Run_postswitch( void )
-{
-  Chain_Node             *the_node;
-  API_extensions_Control *the_extension;
-
-  for ( the_node = _Chain_First( &_API_extensions_List );
-        !_Chain_Is_tail( &_API_extensions_List, the_node ) ;
-        the_node = the_node->next ) {
-
-    the_extension = (API_extensions_Control *) the_node;
-
-    (*the_extension->postswitch_hook)( _Thread_Executing );
-  }
-}
-
 /* end of file */

cpukit/score/src/threaddispatch.c

@@ -211,5 +211,5 @@ post_switch:
     _Thread_Unnest_dispatch();
   #endif
 
-  _API_extensions_Run_postswitch();
+  _API_extensions_Run_postswitch( executing );
 }