From: "Radim Krčmář" <rkrcmar@redhat.com>
To: Jiri Slaby <jslaby@suse.cz>
Cc: pbonzini@redhat.com, linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH] kvm: memset whole irq_eoi
Date: Thu, 13 Oct 2016 18:21:51 +0200 [thread overview]
Message-ID: <20161013162151.GG30525@potion> (raw)
In-Reply-To: <20161013154520.29747-1-jslaby@suse.cz>
2016-10-13 17:45+0200, Jiri Slaby:
> gcc 7 warns:
> arch/x86/kvm/ioapic.c: In function 'kvm_ioapic_reset':
> arch/x86/kvm/ioapic.c:597:2: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size]
>
> And it is right. Memset whole array using sizeof operator.
>
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Radim Krčmář <rkrcmar@redhat.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: H. Peter Anvin <hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: kvm@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
Added x86 subject tag and applied to kvm/queue, thanks.
> arch/x86/kvm/ioapic.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
> index c7220ba94aa7..1a22de70f7f7 100644
> --- a/arch/x86/kvm/ioapic.c
> +++ b/arch/x86/kvm/ioapic.c
> @@ -594,7 +594,7 @@ static void kvm_ioapic_reset(struct kvm_ioapic *ioapic)
> ioapic->irr = 0;
> ioapic->irr_delivered = 0;
> ioapic->id = 0;
> - memset(ioapic->irq_eoi, 0x00, IOAPIC_NUM_PINS);
> + memset(ioapic->irq_eoi, 0x00, sizeof(ioapic->irq_eoi));
> rtc_irq_eoi_tracking_reset(ioapic);
> }
>
> --
> 2.10.1
>
prev parent reply other threads:[~2016-10-13 16:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-13 15:45 [PATCH] kvm: memset whole irq_eoi Jiri Slaby
2016-10-13 15:47 ` Paolo Bonzini
2016-10-13 16:21 ` Radim Krčmář [this message]
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