linux-kernel - Re: [PATCH v4 6/6] KVM: X86: Conert the last users of "shorthand = 0" to use macros

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Date:   Wed, 04 Dec 2019 17:12:43 +0100
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     Peter Xu <peterx@...hat.com>, kvm@...r.kernel.org
Cc:     Nitesh Narayan Lal <nitesh@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 6/6] KVM: X86: Conert the last users of "shorthand = 0" to use macros

Peter Xu <peterx@...hat.com> writes:

> Change the last users of "shorthand = 0" to use APIC_DEST_NOSHORT.
>
> Signed-off-by: Peter Xu <peterx@...hat.com>
> ---
>  arch/x86/kvm/ioapic.c   | 4 ++--
>  arch/x86/kvm/irq_comm.c | 2 +-
>  arch/x86/kvm/x86.c      | 2 +-
>  3 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
> index f53daeaaeb37..77538fd77dc2 100644
> --- a/arch/x86/kvm/ioapic.c
> +++ b/arch/x86/kvm/ioapic.c
> @@ -330,7 +330,7 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
>  		if (e->fields.delivery_mode == APIC_DM_FIXED) {
>  			struct kvm_lapic_irq irq;
>  
> -			irq.shorthand = 0;
> +			irq.shorthand = APIC_DEST_NOSHORT;
>  			irq.vector = e->fields.vector;
>  			irq.delivery_mode = e->fields.delivery_mode << 8;
>  			irq.dest_id = e->fields.dest_id;
> @@ -379,7 +379,7 @@ static int ioapic_service(struct kvm_ioapic *ioapic, int irq, bool line_status)
>  	irqe.trig_mode = entry->fields.trig_mode;
>  	irqe.delivery_mode = entry->fields.delivery_mode << 8;
>  	irqe.level = 1;
> -	irqe.shorthand = 0;
> +	irqe.shorthand = APIC_DEST_NOSHORT;
>  	irqe.msi_redir_hint = false;
>  
>  	if (irqe.trig_mode == IOAPIC_EDGE_TRIG)
> diff --git a/arch/x86/kvm/irq_comm.c b/arch/x86/kvm/irq_comm.c
> index 7d083f71fc8e..9d711c2451c7 100644
> --- a/arch/x86/kvm/irq_comm.c
> +++ b/arch/x86/kvm/irq_comm.c
> @@ -121,7 +121,7 @@ void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
>  	irq->msi_redir_hint = ((e->msi.address_lo
>  		& MSI_ADDR_REDIRECTION_LOWPRI) > 0);
>  	irq->level = 1;
> -	irq->shorthand = 0;
> +	irq->shorthand = APIC_DEST_NOSHORT;
>  }
>  EXPORT_SYMBOL_GPL(kvm_set_msi_irq);
>  
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 3b00d662dc14..f6d778436e15 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -7355,7 +7355,7 @@ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsigned long flags, int apicid)
>  {
>  	struct kvm_lapic_irq lapic_irq;
>  
> -	lapic_irq.shorthand = 0;
> +	lapic_irq.shorthand = APIC_DEST_NOSHORT;
>  	lapic_irq.dest_mode = APIC_DEST_PHYSICAL;
>  	lapic_irq.level = 0;
>  	lapic_irq.dest_id = apicid;

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

And, while on it, and if you're not yet tired I just noticed that
kvm_apic_match_dest()'s parameter is called 'short_hand' while
everywhere else we use 'shorthand'. Value the consistency we should :-)

-- 
Vitaly