Patch "kvm: x86: memset whole irq_eoi" has been added to the 3.18-stable tree

Patch "kvm: x86: memset whole irq_eoi" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    kvm: x86: memset whole irq_eoi

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     kvm-x86-memset-whole-irq_eoi.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 8678654e3c7ad7b0f4beb03fa89691279cba71f9 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 13 Oct 2016 17:45:20 +0200
Subject: kvm: x86: memset whole irq_eoi
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Jiri Slaby <jslaby@suse.cz>

commit 8678654e3c7ad7b0f4beb03fa89691279cba71f9 upstream.

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
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
[Added x86 subject tag]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 virt/kvm/ioapic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -610,7 +610,7 @@ static void kvm_ioapic_reset(struct kvm_
 	ioapic->ioregsel = 0;
 	ioapic->irr = 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);
 	update_handled_vectors(ioapic);
 }


Patches currently in stable-queue which might be from jslaby@suse.cz are

queue-3.18/kvm-x86-memset-whole-irq_eoi.patch