linux-kernel - Re: [PATCH] KVM: Adding 'else' to reduce checking.

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Message-ID: <c889c5a718514fdbbc386c696a237e6e@huawei.com>
Date:   Thu, 16 Jan 2020 08:51:02 +0000
From:   linmiaohe <linmiaohe@...wei.com>
To:     Haiwei Li <lihaiwei.kernel@...il.com>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>
CC:     "pbonzini@...hat.com" <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.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>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>
Subject: Re: [PATCH] KVM: Adding 'else' to reduce checking.

Hi:
Haiwei Li <lihaiwei.kernel@...il.com> writes:
> From 4e19436679a97e3cee73b4ae613ff91580c721d2 Mon Sep 17 00:00:00 2001
> From: Haiwei Li <lihaiwei@...cent.com>
> Date: Thu, 16 Jan 2020 13:51:03 +0800
> Subject: [PATCH] Adding 'else' to reduce checking.
>
> These two conditions are in conflict, adding 'else' to reduce checking.
>
> Signed-off-by: Haiwei Li <lihaiwei@...cent.com>
> ---
>   arch/x86/kvm/lapic.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 679692b..ef5802f 100644
> --- a/arch/x86/kvm/lapic.c
> +++ b/arch/x86/kvm/lapic.c
> @@ -1573,7 +1573,7 @@ static void
> kvm_apic_inject_pending_timer_irqs(struct kvm_lapic *apic)
>          kvm_apic_local_deliver(apic, APIC_LVTT);
>          if (apic_lvtt_tscdeadline(apic))
>                  ktimer->tscdeadline = 0;
> -       if (apic_lvtt_oneshot(apic)) {
> +       else if (apic_lvtt_oneshot(apic)) {
>                  ktimer->tscdeadline = 0;
>                  ktimer->target_expiration = 0;
>          }

Except for the coding style figured out by Vitaly, this patch looks fine for me. So:

Reviewed-by: Miaohe Lin <linmiaohe@...wei.com>