kvm: x86: cpuid: remove the unnecessary variable

The use of local variable *function* is not necessary here. Remove
it to avoid compiling warning with -Wunused-but-set-variable option.

Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index afa7bbb596cd745be6494c53bd9764af503616e2..5680413975814160d800f09e62b8a0d7641a0fa0 100644 (file)
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -865,9 +865,9 @@ EXPORT_SYMBOL_GPL(kvm_cpuid);
 
 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
 {
-       u32 function, eax, ebx, ecx, edx;
+       u32 eax, ebx, ecx, edx;
 
-       function = eax = kvm_register_read(vcpu, VCPU_REGS_RAX);
+       eax = kvm_register_read(vcpu, VCPU_REGS_RAX);
        ecx = kvm_register_read(vcpu, VCPU_REGS_RCX);
        kvm_cpuid(vcpu, &eax, &ebx, &ecx, &edx);
        kvm_register_write(vcpu, VCPU_REGS_RAX, eax);