[RFC PATCH] x86/kvm: perf_ext_supported() can be static

[kbuild test robot]

Fixes: 60e6688e74ee ("x86/kvm: Expose AMD Core Perf Extension flag to guests")
Signed-off-by: Fengguang Wu <fengguang...@intel.com>
---
 cpuid.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 0c991c6a..5cfd3c2 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -55,7 +55,7 @@ bool kvm_mpx_supported(void)
 }
 EXPORT_SYMBOL_GPL(kvm_mpx_supported);
 
-bool perf_ext_supported(void)
+static bool perf_ext_supported(void)
 {
        return boot_cpu_has(X86_FEATURE_PERFCTR_CORE);
 }