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KVM: x86: get rid of odd out jump label in pdptrs_changed

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The odd out jump label is really not needed. Get rid of
it by return true directly while r < 0 as suggested by
Paolo. This further lead to var changed being unused.
Remove it too.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Miaohe Lin 2019-10-25 18:54:34 +08:00 committed by Paolo Bonzini
parent 53fafdbb8b
commit 7f7f0d9c0b
1 changed files with 2 additions and 5 deletions
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7
arch/x86/kvm/x86.c
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@ -721,7 +721,6 @@ EXPORT_SYMBOL_GPL(load_pdptrs);
bool pdptrs_changed(struct kvm_vcpu *vcpu)
{
u64 pdpte[ARRAY_SIZE(vcpu->arch.walk_mmu->pdptrs)];
bool changed = true;
int offset;
gfn_t gfn;
int r;
@ -737,11 +736,9 @@ bool pdptrs_changed(struct kvm_vcpu *vcpu)
r = kvm_read_nested_guest_page(vcpu, gfn, pdpte, offset, sizeof(pdpte),
PFERR_USER_MASK | PFERR_WRITE_MASK);
if (r < 0)
goto out;
changed = memcmp(pdpte, vcpu->arch.walk_mmu->pdptrs, sizeof(pdpte)) != 0;
out:
return true;
return changed;
return memcmp(pdpte, vcpu->arch.walk_mmu->pdptrs, sizeof(pdpte)) != 0;
}
EXPORT_SYMBOL_GPL(pdptrs_changed);