Re: [PATCH v2 5/6] x86/reboot: Unconditionally define cpu_emergency_virt_cb typedef

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On Tue, May 21, 2024 at 07:28:26PM -0700, Sean Christopherson wrote:
>Define cpu_emergency_virt_cb even if the kernel is being built without KVM
>support so that KVM can reference the typedef in asm/kvm_host.h without
>needing yet more #ifdefs.
>
>No functional change intended.
>
>Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>

Reviewed-by: Chao Gao <chao.gao@xxxxxxxxx>

Perhaps x86 maintainers need to be CC'ed.

>---
> arch/x86/include/asm/reboot.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
>index 6536873f8fc0..d0ef2a678d66 100644
>--- a/arch/x86/include/asm/reboot.h
>+++ b/arch/x86/include/asm/reboot.h
>@@ -25,8 +25,8 @@ void __noreturn machine_real_restart(unsigned int type);
> #define MRR_BIOS	0
> #define MRR_APM		1
> 
>-#if IS_ENABLED(CONFIG_KVM_INTEL) || IS_ENABLED(CONFIG_KVM_AMD)
> typedef void (cpu_emergency_virt_cb)(void);
>+#if IS_ENABLED(CONFIG_KVM_INTEL) || IS_ENABLED(CONFIG_KVM_AMD)
> void cpu_emergency_register_virt_callback(cpu_emergency_virt_cb *callback);
> void cpu_emergency_unregister_virt_callback(cpu_emergency_virt_cb *callback);
> void cpu_emergency_disable_virtualization(void);
>-- 
>2.45.0.215.g3402c0e53f-goog
>




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