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: usb-storage: stop using block layer bounce buffers
From: Christoph Hellwig <hch@lst.de>
Message-Id: <20180502124707.GA22958@lst.de>
Date: Wed, 2 May 2018 14:47:07 +0200
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Christoph Hellwig <hch@lst.de>, linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net, linux-scsi@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>
List-ID: <linux-usb.vger.kernel.org>
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