From mboxrd@z Thu Jan  1 00:00:00 1970
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Subject: [v7] cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
From: Oliver Neukum <oneukum@suse.com>
Message-Id: <1545319724.5084.3.camel@suse.com>
Date: Thu, 20 Dec 2018 16:28:44 +0100
To: Johan Hovold <johan@kernel.org>, Macpaul Lin <macpaul.lin@mediatek.com>
Cc: Andrey Arapov <andrey.arapov@gmail.com>, Lars Melin <larsm17@gmail.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Mediatek WSD Upstream <wsd_upstream@mediatek.com>, linux-usb@vger.kernel.org, stable@vger.kernel.org
List-ID: <linux-usb.vger.kernel.org>
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