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MIPS: KVM: Remove dead code of TLB index error in kvm_mips_emul_tlbwr()

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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>
This commit is contained in:
Deng-Cheng Zhu 2014-06-26 12:11:40 -07:00 committed by Paolo Bonzini
parent db2fb7f202
commit ab76228a48
1 changed files with 0 additions and 5 deletions
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arch/mips/kvm/emulate.c
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@ -846,11 +846,6 @@ enum emulation_result kvm_mips_emul_tlbwr(struct kvm_vcpu *vcpu)
get_random_bytes(&index, sizeof(index));
index &= (KVM_MIPS_GUEST_TLB_SIZE - 1);
if (index < 0 || index >= KVM_MIPS_GUEST_TLB_SIZE) {
kvm_err("%s: illegal index: %d\n", __func__, index);
return EMULATE_FAIL;
}
tlb = &vcpu->arch.guest_tlb[index];
/*