KVM: MMU: Remove unused varialbe in rmap_next()

Remove unused varialbe in rmap_next()

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 0682a393ad90..7eff794457f3 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -647,7 +647,6 @@ static void rmap_remove(struct kvm *kvm, u64 *spte)
 static u64 *rmap_next(struct kvm *kvm, unsigned long *rmapp, u64 *spte)
 {
         struct kvm_rmap_desc *desc;
-        struct kvm_rmap_desc *prev_desc;
         u64 *prev_spte;
         int i;
 
@@ -659,7 +658,6 @@ static u64 *rmap_next(struct kvm *kvm, unsigned long *rmapp, u64 *spte)
                 return NULL;
         }
         desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
-        prev_desc = NULL;
         prev_spte = NULL;
         while (desc) {
                 for (i = 0; i < RMAP_EXT && desc->sptes[i]; ++i) {