KVM: x86: eliminate some unreachable code

MiaoheLin · bonzini · commit e080e538e697 · 2020-03-16T17:57:09.000+01:00
These code are unreachable, remove them.

Signed-off-by: Miaohe Lin &lt;linmiaohe@huawei.com&gt;
Reviewed-by: Krish Sadhukhan &lt;krish.sadhukhan@oracle.com&gt;
Reviewed-by: Vitaly Kuznetsov &lt;vkuznets@redhat.com&gt;
Signed-off-by: Paolo Bonzini &lt;pbonzini@redhat.com&gt;
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
@@ -4550,7 +4550,6 @@ static bool rmode_exception(struct kvm_vcpu *vcpu, int vec)
 	case GP_VECTOR:
 	case MF_VECTOR:
 		return true;
-	break;
 	}
 	return false;
 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
@@ -3077,7 +3077,6 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		break;
 	case APIC_BASE_MSR ... APIC_BASE_MSR + 0x3ff:
 		return kvm_x2apic_msr_read(vcpu, msr_info->index, &msr_info->data);
-		break;
 	case MSR_IA32_TSCDEADLINE:
 		msr_info->data = kvm_get_lapic_tscdeadline_msr(vcpu);
 		break;
@@ -3160,7 +3159,6 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		return kvm_hv_get_msr_common(vcpu,
 					     msr_info->index, &msr_info->data,
 					     msr_info->host_initiated);
-		break;
 	case MSR_IA32_BBL_CR_CTL3:
 		/* This legacy MSR exists but isn't fully documented in current
 		 * silicon.  It is however accessed by winxp in very narrow
@@ -8484,7 +8482,6 @@ static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu)
 		break;
 	default:
 		return -EINTR;
-		break;
 	}
 	return 1;
 }

Original file line number	Diff line number	Diff line change
`@@ -4550,7 +4550,6 @@ static bool rmode_exception(struct kvm_vcpu *vcpu, int vec)`
`4550`	`4550`	`case GP_VECTOR:`
`4551`	`4551`	`case MF_VECTOR:`
`4552`	`4552`	`return true;`
`4553`		`- break;`
`4554`	`4553`	`}`
`4555`	`4554`	`return false;`
`4556`	`4555`	`}`