MIPS: KVM: Remove dead code of TLB index error in kvm_mips_emul_tlbwr()
It's impossible to fall into the error handling of the TLB index after being masked by (KVM_MIPS_GUEST_TLB_SIZE - 1). Remove the dead code. Reported-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -846,11 +846,6 @@ enum emulation_result kvm_mips_emul_tlbwr(struct kvm_vcpu *vcpu)
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get_random_bytes(&index, sizeof(index));
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get_random_bytes(&index, sizeof(index));
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index &= (KVM_MIPS_GUEST_TLB_SIZE - 1);
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index &= (KVM_MIPS_GUEST_TLB_SIZE - 1);
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if (index < 0 || index >= KVM_MIPS_GUEST_TLB_SIZE) {
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kvm_err("%s: illegal index: %d\n", __func__, index);
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return EMULATE_FAIL;
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}
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tlb = &vcpu->arch.guest_tlb[index];
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tlb = &vcpu->arch.guest_tlb[index];
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/*
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/*
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