[COMMIT master] KVM: VMX: Remove vmx->msr_offset_efer

[Avi Kivity]

From: Avi Kivity <a...@redhat.com>

This variable is used to communicate between a caller and a callee; switch
to a function argument instead.

Signed-off-by: Avi Kivity <a...@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 85f97d1..99c34f1 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -101,7 +101,6 @@ struct vcpu_vmx {
        struct shared_msr_entry *guest_msrs;
        int                   nmsrs;
        int                   save_nmsrs;
-       int                   msr_offset_efer;
 #ifdef CONFIG_X86_64
        u64                   msr_host_kernel_gs_base;
        u64                   msr_guest_kernel_gs_base;
@@ -584,14 +583,11 @@ static void reload_tss(void)
        load_TR_desc();
 }
 
-static bool update_transition_efer(struct vcpu_vmx *vmx)
+static bool update_transition_efer(struct vcpu_vmx *vmx, int efer_offset)
 {
-       int efer_offset = vmx->msr_offset_efer;
        u64 guest_efer;
        u64 ignore_bits;
 
-       if (efer_offset < 0)
-               return false;
        guest_efer = vmx->vcpu.arch.shadow_efer;
 
        /*
@@ -927,8 +923,8 @@ static void setup_msrs(struct vcpu_vmx *vmx)
                        move_msr_up(vmx, index, save_nmsrs++);
        }
 #endif
-       vmx->msr_offset_efer = index = __find_msr_index(vmx, MSR_EFER);
-       if (index >= 0 && update_transition_efer(vmx))
+       index = __find_msr_index(vmx, MSR_EFER);
+       if (index >= 0 && update_transition_efer(vmx, index))
                move_msr_up(vmx, index, save_nmsrs++);
 
        vmx->save_nmsrs = save_nmsrs;
--
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