sched/sched and include/nuttx/arch.h: Rename sched_process_cpuload to nxsched_process_cpuload. All internal sched_ functions should be prefixed with nx. Remove duplicate prototype from nuttx/arch.h.

include/nuttx/arch.h

@@ -2053,28 +2053,6 @@ void sched_timer_expiration(void);
 void sched_alarm_expiration(FAR const struct timespec *ts);
 #endif
 
-/****************************************************************************
- * Name: sched_process_cpuload
- *
- * Description:
- *   Collect data that can be used for CPU load measurements.
- *
- * Input Parameters:
- *   None
- *
- * Returned Value:
- *   None
- *
- * Assumptions/Limitations:
- *   This function is called from a timer interrupt handler with all
- *   interrupts disabled.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_SCHED_CPULOAD) && defined(CONFIG_SCHED_CPULOAD_EXTCLK)
-void weak_function sched_process_cpuload(void);
-#endif
-
 /****************************************************************************
  * Name: irq_dispatch
  *

sched/Kconfig

@@ -821,7 +821,7 @@ config SCHED_CPULOAD_EXTCLK
 		achieved.  This option enables use of such an "external" clock.  The
 		implementation of the clock must be provided by platform-specific
 		logic; that platform-specific logic must call the system function
-		sched_process_cpuload() at each timer expiration with interrupts
+		nxsched_process_cpuload() at each timer expiration with interrupts
 		disabled.
 
 if SCHED_CPULOAD_EXTCLK

sched/sched/sched.h

@@ -490,10 +490,10 @@ void sched_tasklist_unlock(irqstate_t lock);
 #  define sched_islocked_tcb(tcb) ((tcb)->lockcount > 0)
 #endif
 
+#if defined(CONFIG_SCHED_CPULOAD) && !defined(CONFIG_SCHED_CPULOAD_EXTCLK)
 /* CPU load measurement support */
 
-#if defined(CONFIG_SCHED_CPULOAD) && !defined(CONFIG_SCHED_CPULOAD_EXTCLK)
+void weak_function nxsched_process_cpuload(void);
-void weak_function sched_process_cpuload(void);
 #endif
 
 /* Critical section monitor */

sched/sched/sched_cpuload_oneshot.c

@@ -229,10 +229,10 @@ static void nxsched_oneshot_callback(FAR struct oneshot_lowerhalf_s *lower,
   /* Perform CPU load measurements */
 
 #ifdef CONFIG_HAVE_WEAKFUNCTIONS
-  if (sched_process_cpuload != NULL)
+  if (nxsched_process_cpuload != NULL)
 #endif
     {
-      sched_process_cpuload();
+      nxsched_process_cpuload();
     }
 
   /* Then restart the oneshot */

sched/sched/sched_cpuload_period.c

@@ -185,10 +185,10 @@ static bool nxsched_period_callback(FAR uint32_t *next_interval_us,
   /* Perform CPU load measurements */
 
 #ifdef CONFIG_HAVE_WEAKFUNCTIONS
-  if (sched_process_cpuload != NULL)
+  if (nxsched_process_cpuload != NULL)
 #endif
     {
-      sched_process_cpuload();
+      nxsched_process_cpuload();
     }
 
   /* Then continue the timing */

sched/sched/sched_processtimer.c

@@ -210,10 +210,10 @@ void sched_process_timer(void)
    */
 
 #ifdef CONFIG_HAVE_WEAKFUNCTIONS
-  if (sched_process_cpuload != NULL)
+  if (nxsched_process_cpuload != NULL)
 #endif
     {
-      sched_process_cpuload();
+      nxsched_process_cpuload();
     }
 #endif