From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Patterson <cjp256@gmail.com>
Subject: [PATCH v2] ns16550: mask transmit holding register
	empty interrupt when tx is stopped
Date: Sun, 21 Aug 2016 13:38:51 -0400
Message-ID: <1471801131-23272-1-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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