Xtensa ESP32: Make sure that SMP configuratin still builds without errors.

arch/xtensa/src/common/xtensa_cpupause.c

@@ -164,6 +164,7 @@ int up_cpu_paused(int cpu)
     }
 
   spin_unlock(&g_cpu_wait[cpu]);
+  return OK;
 }
 
 /****************************************************************************

arch/xtensa/src/esp32/esp32_cpuint.c

@@ -53,6 +53,8 @@
 #include "esp32_cpuint.h"
 #include "xtensa.h"
 
+#include "sched/sched.h"
+
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/

arch/xtensa/src/esp32/esp32_cpustart.c

@@ -42,6 +42,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <semaphore.h>
+#include <errno.h>
 #include <debug.h>
 
 #include <nuttx/arch.h>

arch/xtensa/src/esp32/esp32_intercpu_interrupt.c

@@ -86,7 +86,7 @@ static int esp32_fromcpu_interrupt(int fromcpu)
   int intcode;
   int tocpu;
 
-  DEBUGASSERT(regs != NULL);
+  DEBUGASSERT((unsigned)fromcpu < CONFIG_SMP_NCPUS);
 
   /* Clear the interrupt from the other CPU */
 
@@ -155,8 +155,8 @@ int xtensa_intercpu_interrupt(int tocpu, int intcode)
 {
   int fromcpu;
 
-  DEBUGASSERT((unsigned)cpu < CONFIG_SMP_NCPUS &&
-              (unsigned)incode <= UINT8_MAX);
+  DEBUGASSERT((unsigned)tocpu < CONFIG_SMP_NCPUS &&
+              (unsigned)intcode <= UINT8_MAX);
 
   /* Disable context switching so that some other thread does not attempt to
    * take the spinlock on the same CPU.