linux-kernel - Re: [PATCH] KVM: arm/arm64: arch_timer: remove unused error handling

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Date:   Thu, 8 Sep 2016 16:25:25 +0200
From:   Christoffer Dall <christoffer.dall@...aro.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Andre Przywara <andre.przywara@....com>,
        Eric Auger <eric.auger@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: arm/arm64: arch_timer: remove unused error handling

Hi Arnd,

On Thu, Sep 08, 2016 at 03:58:44PM +0200, Arnd Bergmann wrote:
> A cleanup removed the call to create_singlethread_workqueue(), but did not
> remove the code that was used in case it failed:
> 
> virt/kvm/arm/arch_timer.c: In function 'kvm_timer_hyp_init':
> virt/kvm/arm/arch_timer.c:457:1: error: label 'out_free' defined but not used [-Werror=unused-label]
> 
> This removes the now dead code too.

Paolo beat you to it:
https://lists.cs.columbia.edu/pipermail/kvmarm/2016-September/021626.html

Thanks,
-Christoffer

> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 3706feacd007 ("KVM: Remove deprecated create_singlethread_workqueue")
> ---
>  virt/kvm/arm/arch_timer.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
> index 4309b60ebf17..46980a49a3bb 100644
> --- a/virt/kvm/arm/arch_timer.c
> +++ b/virt/kvm/arm/arch_timer.c
> @@ -453,9 +453,6 @@ int kvm_timer_hyp_init(void)
>  	cpuhp_setup_state(CPUHP_AP_KVM_ARM_TIMER_STARTING,
>  			  "AP_KVM_ARM_TIMER_STARTING", kvm_timer_starting_cpu,
>  			  kvm_timer_dying_cpu);
> -	goto out;
> -out_free:
> -	free_percpu_irq(host_vtimer_irq, kvm_get_running_vcpus());
>  out:
>  	return err;
>  }
> -- 
> 2.9.0
>