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>

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 0682a393ad9050f96e2ea7ed364d56ff6cbccbc6..7eff794457f321bf8aba8e736a7d5770288b8f88 100644 (file)
--- 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) {