[PATCH] kvm:vmx:changes in handle_io() for code cleanup.

[Stephen Zhang]

Signed-off-by: Stephen Zhang <stephenzhang...@gmail.com>
---
 arch/x86/kvm/vmx/vmx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 47b8357..e1954df 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4899,15 +4899,15 @@ static int handle_triple_fault(struct kvm_vcpu *vcpu)
 static int handle_io(struct kvm_vcpu *vcpu)
 {
        unsigned long exit_qualification;
-       int size, in, string;
+       int size, in;
        unsigned port;
 
        exit_qualification = vmx_get_exit_qual(vcpu);
-       string = (exit_qualification & 16) != 0;
 
        ++vcpu->stat.io_exits;
 
-       if (string)
+       /* String instruction */
+       if (exit_qualification & BIT(4))
                return kvm_emulate_instruction(vcpu, 0);
 
        port = exit_qualification >> 16;
-- 
1.8.3.1