From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Patterson <cjp256@gmail.com>
Subject: [PATCH] ns16550: mask transmit holding register empty
	interrupt when tx is stopped
Date: Wed, 17 Aug 2016 10:02:44 -0400
Message-ID: <1471442564-26775-1-git-send-email-cjp256@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
List-Unsubscribe: <https://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <https://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xen.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xen.org>
To: xen-devel@lists.xen.org
Cc: sstabellini@kernel.org, wei.liu2@citrix.com, George.Dunlap@eu.citrix.com, andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com, tim@xen.org, Chris Patterson <pattersonc@ainfosec.com>, jbeulich@suse.com
List-Id: xen-devel@lists.xenproject.org
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