Re: [PATCH] KVM: apic: remove unused function apic_lvt_vector()

[Krish Sadhukhan]

On 2/12/20 6:37 PM, linmiaohe wrote:
> From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
>
> The function apic_lvt_vector() is unused now, remove it.
>
> Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
> ---
>   arch/x86/kvm/lapic.c | 5 -----
>   1 file changed, 5 deletions(-)
>
> diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
> index eafc631d305c..0b563c280784 100644
> --- a/arch/x86/kvm/lapic.c
> +++ b/arch/x86/kvm/lapic.c
> @@ -294,11 +294,6 @@ static inline int apic_lvt_enabled(struct kvm_lapic *apic, int lvt_type)
>   	return !(kvm_lapic_get_reg(apic, lvt_type) & APIC_LVT_MASKED);
>   }
>   
> -static inline int apic_lvt_vector(struct kvm_lapic *apic, int lvt_type)
> -{
> -	return kvm_lapic_get_reg(apic, lvt_type) & APIC_VECTOR_MASK;
> -}
> -
>   static inline int apic_lvtt_oneshot(struct kvm_lapic *apic)
>   {
>   	return apic->lapic_timer.timer_mode == APIC_LVT_TIMER_ONESHOT;

There is one place, lapic_timer_int_injected(), where this function be 
used :

ÂÂÂÂÂÂÂ struct kvm_lapic *apic = vcpu->arch.apic;
-ÂÂÂÂÂÂ u32 reg = kvm_lapic_get_reg(apic, APIC_LVTT);

ÂÂÂ ÂÂÂ if (kvm_apic_hw_enabled(apic)) {

-ÂÂÂ ÂÂÂ ÂÂÂ ÂÂÂ int vec = reg & APIC_VECTOR_MASK;

+ÂÂÂÂÂÂÂÂÂÂÂÂÂÂ int vec = apic_lvt_vector(APIC_LVTT);
ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ void *bitmap = apic->regs + APIC_ISR;


But since that's the only place I can find, we probably don't need a 
separate function.


Reviewed-by: Krish Sadhukhan <krish.sadhukhan@xxxxxxxxxx>