linux-kernel - [PATCH] powerpc: Define NR

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Message-Id: <afef0ec65a8ba8651bf4f6e4f4f08a8b6991dbfb.1620379469.git.christophe.leroy@csgroup.eu>
Date:   Fri,  7 May 2021 09:24:43 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] powerpc: Define NR_CPUS all the time

include/linux/threads.h defines a default value for CONFIG_NR_CPUS
but suggests the architectures should always define it.

So do it, when CONFIG_SMP is not selected set CONFIG_NR_CPUS to 1.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/platforms/Kconfig.cputype | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index f998e655b570..885140055b7a 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -476,9 +476,9 @@ config SMP
 	  If you don't know what to do here, say N.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-8192)"
-	range 2 8192
-	depends on SMP
+	int "Maximum number of CPUs (2-8192)" if SMP
+	range 2 8192 if SMP
+	default "1" if !SMP
 	default "32" if PPC64
 	default "4"
 
-- 
2.25.0