Re: [PATCH] KVM: x86: eliminate some unreachable code

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On 13/02/20 03:53, linmiaohe wrote:
> From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
> 
> These code are unreachable, remove them.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
> ---
>  arch/x86/kvm/vmx/vmx.c | 1 -
>  arch/x86/kvm/x86.c     | 3 ---
>  2 files changed, 4 deletions(-)
> 
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index bb5c33440af8..b6d4eafe01cf 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -4505,7 +4505,6 @@ 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
> index fbabb2f06273..a597009aefd7 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -3081,7 +3081,6 @@ 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;
> @@ -3164,7 +3163,6 @@ 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
> @@ -8471,7 +8469,6 @@ static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu)
>  		break;
>  	default:
>  		return -EINTR;
> -		break;
>  	}
>  	return 1;
>  }
> 

Queued, thanks.

Paolo




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