[PATCH 2/2] net: emaclite: add barriers to support Xilinx Zynq platform

[David Miller]

From: Srikanth Thokala <srikanth.thokala at xilinx.com>
Date: Thu, 28 Nov 2013 12:59:57 +0530

> This patch adds barriers at appropriate places to ensure the driver
> works on Xilinx Zynq ARM-based SoC platform.
> 
> Signed-off-by: Srikanth Thokala <sthokal at xilinx.com>

Memory barriers must have comments.

Specifically, the comment must describe what exactly is being ensured
by the memory barrier.  What entity must see what memory operations in
what order?