linux-kernel - Re: [PATCH] KVM: VMX: replace "fall through" with "return true" to indicate different case

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Date:   Wed, 19 Feb 2020 01:40:33 +0000
From:   linmiaohe <linmiaohe@...wei.com>
To:     Joe Perches <joe@...ches.com>
CC:     "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "rkrcmar@...hat.com" <rkrcmar@...hat.com>,
        "sean.j.christopherson@...el.com" <sean.j.christopherson@...el.com>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "wanpengli@...cent.com" <wanpengli@...cent.com>,
        "jmattson@...gle.com" <jmattson@...gle.com>,
        "joro@...tes.org" <joro@...tes.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>, "hpa@...or.com" <hpa@...or.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>
Subject: Re: [PATCH] KVM: VMX: replace "fall through" with "return true" to
 indicate different case

Joe Perches <joe@...ches.com> wrote:
>On Tue, 2020-02-18 at 11:39 +0800, linmiaohe wrote:
>> The second "/* fall through */" in rmode_exception() makes code harder 
>> to read. Replace it with "return true" to indicate they are different 
>> cases and also this improves the readability.
>
>perhaps
>		return !(vcpu->guest_debug & (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP));
>

Will do. Thanks for your advice.