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-rw-r--r--cpukit/score/include/rtems/score/percpu.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/percpu.h b/cpukit/score/include/rtems/score/percpu.h
index 0c48b50570..929dad2191 100644
--- a/cpukit/score/include/rtems/score/percpu.h
+++ b/cpukit/score/include/rtems/score/percpu.h
@@ -27,6 +27,11 @@
#if defined(RTEMS_SMP)
#include <rtems/score/smplock.h>
#endif
+
+ /*
+ * NOTE: This file MUST be included on non-smp systems as well
+ * in order to define bsp_smp_processor_id.
+ */
#include <rtems/bspsmp.h>
#endif