From d21a1c83c7595e387545632e44cd7797b76e19cc Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 23 Apr 2013 18:30:36 +0200 Subject: [PATCH] ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally The CONFIG_KVM_ARM_MAX_VCPUS symbol is needed in order to build the kernel/context_tracking.c code, which includes the vgic data structures implictly through the kvm headers. Definining the symbol to zero on builds without KVM resolves this build error: In file included from include/linux/kvm_host.h:33:0, from kernel/context_tracking.c:18: arch/arm/include/asm/kvm_host.h:28:23: warning: "CONFIG_KVM_ARM_MAX_VCPUS" is not defined [-Wundef] #define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS ^ arch/arm/include/asm/kvm_vgic.h:34:24: note: in expansion of macro 'KVM_MAX_VCPUS' #define VGIC_MAX_CPUS KVM_MAX_VCPUS ^ arch/arm/include/asm/kvm_vgic.h:38:6: note: in expansion of macro 'VGIC_MAX_CPUS' #if (VGIC_MAX_CPUS > 8) ^ In file included from arch/arm/include/asm/kvm_host.h:41:0, from include/linux/kvm_host.h:33, from kernel/context_tracking.c:18: arch/arm/include/asm/kvm_vgic.h:59:11: error: 'CONFIG_KVM_ARM_MAX_VCPUS' undeclared here (not in a function) } percpu[VGIC_MAX_CPUS]; ^ Signed-off-by: Arnd Bergmann Cc: Marc Zyngier Cc: Christoffer Dall Cc: Will Deacon Signed-off-by: Christoffer Dall --- arch/arm/kvm/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig index 49dd64e579c2..370e1a8af6ac 100644 --- a/arch/arm/kvm/Kconfig +++ b/arch/arm/kvm/Kconfig @@ -41,9 +41,9 @@ config KVM_ARM_HOST Provides host support for ARM processors. config KVM_ARM_MAX_VCPUS - int "Number maximum supported virtual CPUs per VM" - depends on KVM_ARM_HOST - default 4 + int "Number maximum supported virtual CPUs per VM" if KVM_ARM_HOST + default 4 if KVM_ARM_HOST + default 0 help Static number of max supported virtual CPUs per VM.