From 64300a7ec3ec490110c692e0d05eb753e05aafbf Mon Sep 17 00:00:00 2001
From: "Charles E. Youse" <charles.youse@intel.com>
Date: Tue, 24 Sep 2019 13:29:41 -0400
Subject: [PATCH] kernel/Kconfig: clamp number of CPUs to 4

This maximum is implicit in the kernel support for SMP, e.g.,
kernel/init.c and kernel/smp.c assume CONFIG_MP_NUM_CPUS <= 4.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
---
 kernel/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/Kconfig b/kernel/Kconfig
index d09164a93e2..fac61b7c1c8 100644
--- a/kernel/Kconfig
+++ b/kernel/Kconfig
@@ -722,6 +722,7 @@ config SMP
 config MP_NUM_CPUS
 	int "Number of CPUs/cores"
 	default 1
+	range 1 4
 	help
 	  Number of multiprocessing-capable cores available to the
 	  multicpu API and SMP features.