linux-kernel - Re: [PATCH] KVM: arm64: get rid of var ret and out jump label in kvm_arch_vcpu_ioctl_set_guest

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Date:   Thu, 28 Nov 2019 09:50:51 +0100
From:   Auger Eric <eric.auger@...hat.com>
To:     linmiaohe <linmiaohe@...wei.com>, maz@...nel.org,
        pbonzini@...hat.com, rkrcmar@...hat.com, james.morse@....com,
        julien.thierry.kdev@...il.com, suzuki.poulose@....com,
        christoffer.dall@....com, catalin.marinas@....com,
        gregkh@...uxfoundation.org, will@...nel.org,
        andre.przywara@....com, tglx@...utronix.de
Cc:     linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH] KVM: arm64: get rid of var ret and out jump label in
 kvm_arch_vcpu_ioctl_set_guest_debug()

Hi,

On 11/28/19 4:09 AM, linmiaohe wrote:
> From: Miaohe Lin <linmiaohe@...wei.com>
> 
> The var ret and out jump label is not really needed. Clean them
> up.
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Reviewed-by: Eric Auger <eric.auger@...hat.com>

Thanks

Eric

> ---
>  arch/arm64/kvm/guest.c | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
> index 2fff06114a8f..3b836c91609e 100644
> --- a/arch/arm64/kvm/guest.c
> +++ b/arch/arm64/kvm/guest.c
> @@ -834,14 +834,10 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
>  int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
>  					struct kvm_guest_debug *dbg)
>  {
> -	int ret = 0;
> -
>  	trace_kvm_set_guest_debug(vcpu, dbg->control);
>  
> -	if (dbg->control & ~KVM_GUESTDBG_VALID_MASK) {
> -		ret = -EINVAL;
> -		goto out;
> -	}
> +	if (dbg->control & ~KVM_GUESTDBG_VALID_MASK)
> +		return -EINVAL;
>  
>  	if (dbg->control & KVM_GUESTDBG_ENABLE) {
>  		vcpu->guest_debug = dbg->control;
> @@ -856,8 +852,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
>  		vcpu->guest_debug = 0;
>  	}
>  
> -out:
> -	return ret;
> +	return 0;
>  }
>  
>  int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
>