score: Optimize _Thread_queue_Enqueue()

Move thread state for _Thread_queue_Enqueue() to the thread queue
context.  This reduces the parameter count of _Thread_queue_Enqueue()
from five to four (ARM for example has only four function parameter
registers).  Since the thread state is used after several function calls
inside _Thread_queue_Enqueue() this parameter was saved on the stack
previously.

1 files changed, 4 insertions, 1 deletions

diff --git a/cpukit/score/src/coremsgsubmit.c b/cpukit/score/src/coremsgsubmit.c
index 8ea7fcf6c8..3c961014e3 100644
--- a/cpukit/score/src/coremsgsubmit.c
+++ b/cpukit/score/src/coremsgsubmit.c
@@ -131,12 +131,15 @@ Status_Control _CORE_message_queue_Submit(
     executing->Wait.option = (uint32_t) size;
     executing->Wait.count = submit_type;
 
+    _Thread_queue_Context_set_thread_state(
+      queue_context,
+      STATES_WAITING_FOR_MESSAGE
+    );
     _Thread_queue_Context_set_do_nothing_enqueue_callout( queue_context );
     _Thread_queue_Enqueue(
       &the_message_queue->Wait_queue.Queue,
       the_message_queue->operations,
       executing,
-      STATES_WAITING_FOR_MESSAGE,
       queue_context
     );
     return _Thread_Wait_get_status( executing );