1 files changed, 2 insertions, 20 deletions
diff --git a/os/kernel/src/chsys.c b/os/kernel/src/chsys.c
index 4c8cd708d..6c63e113f 100644
--- a/os/kernel/src/chsys.c
+++ b/os/kernel/src/chsys.c
@@ -98,6 +98,8 @@ void chSysInit(void) {
   setcurrp(_thread_init(&mainthread, NORMALPRIO));
   currp->p_state = THD_STATE_CURRENT;
 #if CH_DBG_ENABLE_STACK_CHECK
+  /* This is a special case because the main thread Thread structure is not
+     adjacent to its stack area.*/
   currp->p_stklimit = &__main_thread_stack_base__;
 #endif
   chSysEnable();
@@ -141,24 +143,4 @@ void chSysTimerHandlerI(void) {
 #endif
 }
 
-#if CH_USE_NESTED_LOCKS && !CH_OPTIMIZE_SPEED
-void chSysLock(void) {
-
-  chDbgAssert(currp->p_locks >= 0,
-              "chSysLock(), #1",
-              "negative nesting counter");
-  if (currp->p_locks++ == 0)
-    port_lock();
-}
-
-void chSysUnlock(void) {
-
-  chDbgAssert(currp->p_locks > 0,
-              "chSysUnlock(), #1",
-              "non-positive nesting counter");
-  if (--currp->p_locks == 0)
-    port_unlock();
-}
-#endif /* CH_USE_NESTED_LOCKS && !CH_OPTIMIZE_SPEED */
-
 /** @} */