linux-kernel - Re: [PATCH] KVM: vmx: delete meaningless vmx_decache_cr0_guest

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Message-ID: <87r1z9j7l0.fsf@vitty.brq.redhat.com>
Date:   Wed, 05 Feb 2020 17:56:59 +0100
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     linmiaohe <linmiaohe@...wei.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org, x86@...nel.org,
        pbonzini@...hat.com, rkrcmar@...hat.com,
        sean.j.christopherson@...el.com, wanpengli@...cent.com,
        jmattson@...gle.com, joro@...tes.org, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, hpa@...or.com
Subject: Re: [PATCH] KVM: vmx: delete meaningless vmx_decache_cr0_guest_bits() declaration

linmiaohe <linmiaohe@...wei.com> writes:

> From: Miaohe Lin <linmiaohe@...wei.com>
>
> The function vmx_decache_cr0_guest_bits() is only called below its
> implementation. So this is meaningless and should be removed.
>
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
> ---
>  arch/x86/kvm/vmx/vmx.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 678edbd6e278..061fefc30ecc 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -1428,8 +1428,6 @@ static bool emulation_required(struct kvm_vcpu *vcpu)
>  	return emulate_invalid_guest_state && !guest_state_valid(vcpu);
>  }
>  
> -static void vmx_decache_cr0_guest_bits(struct kvm_vcpu *vcpu);
> -
>  unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
>  {
>  	struct vcpu_vmx *vmx = to_vmx(vcpu);

Reviewed-by: Vitaly Kuznetsov <vkuznets@...hat.com>

-- 
Vitaly