From a3b0397fdf19b3c23f37012532482c787e01d4a0 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 16 Jan 2013 14:08:14 +0200
Subject: [PATCH] serial: 8250_dma: TX optimisation

Remove one useless wakeup, and do not use DMA with zero byte
transfers.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reading git-format-patch failed