config: Remove CONFIGURE_DISABLE_SMP_CONFIGURATION

The CONFIGURE_DISABLE_SMP_CONFIGURATION configuration option and
rtems_configuration_is_smp_enabled() were added during the SMP support
development cycle as a workaround to fix some testsuite failures in SMP
configurations.  All use cases were replaced with tests for specific
conditions.  The configuration option and test macro were undocumented.

Close #3876.

3 files changed, 0 insertions, 45 deletions

diff --git a/cpukit/include/rtems/confdefs.h b/cpukit/include/rtems/confdefs.h
index 0fc2d0e5a6..fa19be0184 100644
--- a/cpukit/include/rtems/confdefs.h
+++ b/cpukit/include/rtems/confdefs.h
@@ -161,18 +161,6 @@ extern "C" {
   #define _CONFIGURE_MAXIMUM_PROCESSORS 1
 #endif
 
-/*
- * An internal define to indicate that this is an SMP application
- * configuration.
- */
-#ifdef RTEMS_SMP
-  #if !defined(CONFIGURE_DISABLE_SMP_CONFIGURATION)
-    #define _CONFIGURE_SMP_APPLICATION
-  #elif _CONFIGURE_MAXIMUM_PROCESSORS > 1
-    #error "CONFIGURE_DISABLE_SMP_CONFIGURATION and CONFIGURE_MAXIMUM_PROCESSORS > 1 makes no sense"
-  #endif
-#endif
-
 #ifdef CONFIGURE_SMP_APPLICATION
   #warning "CONFIGURE_SMP_APPLICATION is obsolete since RTEMS 5.1"
 #endif
@@ -2621,13 +2609,6 @@ struct _reent *__getreent(void)
   #endif
 
   #ifdef RTEMS_SMP
-    const bool _SMP_Is_enabled =
-      #ifdef _CONFIGURE_SMP_APPLICATION
-        true;
-      #else
-        false;
-      #endif
-
     const uint32_t _SMP_Processor_configured_maximum =
       _CONFIGURE_MAXIMUM_PROCESSORS;
   #endif
diff --git a/cpukit/include/rtems/config.h b/cpukit/include/rtems/config.h
index 4811d0e704..e82c7abf11 100644
--- a/cpukit/include/rtems/config.h
+++ b/cpukit/include/rtems/config.h
@@ -151,19 +151,6 @@ uint32_t rtems_configuration_get_maximum_extensions( void );
 #endif
 
 /**
- * @brief Returns true if the SMP mode of operation is enabled, and false
- * otherwise.
- *
- * In uni-processor configurations this is a compile-time constant which
- * evaluates to false.
- *
- * @retval true SMP mode of operation is enabled.
- * @retval false Otherwise.
- */
-#define rtems_configuration_is_smp_enabled() \
-      (_SMP_Is_enabled)
-
-/**
  * @brief Returns the configured maximum count of processors.
  *
  * The actual number of processors available for the application will be less
diff --git a/cpukit/include/rtems/score/smp.h b/cpukit/include/rtems/score/smp.h
index 36cfd981ab..2722fbdcee 100644
--- a/cpukit/include/rtems/score/smp.h
+++ b/cpukit/include/rtems/score/smp.h
@@ -37,19 +37,6 @@ extern "C" {
  */
 
 /**
- * @brief Indicates if SMP is enabled.
- *
- * In SMP configurations, this constant is defined by the application
- * configuration via <rtems/confdefs.h>, otherwise it is a compile-time
- * constant with the value false.
- */
-#if defined(RTEMS_SMP)
-  extern const bool _SMP_Is_enabled;
-#else
-  #define _SMP_Is_enabled false
-#endif
-
-/**
  * @brief The configured processor maximum.
  *
  * In SMP configurations, this constant is defined by the application