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@xxxxxxxxxxxxxxx> know about it.
>From 8678654e3c7ad7b0f4beb03fa89691279cba71f9 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@xxxxxxx>
Date: Thu, 13 Oct 2016 17:45:20 +0200
Subject: kvm: x86: memset whole irq_eoi
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From: Jiri Slaby <jslaby@xxxxxxx>
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@xxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: x86@xxxxxxxxxx
Cc: kvm@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
[Added x86 subject tag]
Signed-off-by: Radim Krčmář <rkrcmar@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxx are
queue-3.18/kvm-x86-memset-whole-irq_eoi.patch