From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg Kurz <gkurz@linux.vnet.ibm.com>
Subject: Re: [PATCH] virtio-pci: fix host notifiers on bi-endian architectures
Date: Wed, 11 Mar 2015 23:03:14 +0100
Message-ID: <20150311230314.08e51843@bahia.local>
References: <20150311180212.8119.14734.stgit@bahia.local>
	<20150311210322-mutt-send-email-mst@redhat.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <virtualization-bounces@lists.linux-foundation.org>
In-Reply-To: <20150311210322-mutt-send-email-mst@redhat.com>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/virtualization>,
	<mailto:virtualization-request@lists.linux-foundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/virtualization/>
List-Post: <mailto:virtualization@lists.linux-foundation.org>
List-Help: <mailto:virtualization-request@lists.linux-foundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/virtualization>,
	<mailto:virtualization-request@lists.linux-foundation.org?subject=subscribe>
Sender: virtualization-bounces@lists.linux-foundation.org
Errors-To: virtualization-bounces@lists.linux-foundation.org
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>, qemu-ppc@nongnu.org, qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org
List-Id: virtualization@lists.linuxfoundation.org
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