From 3365711df024f60d2e1e0ba9b40b6e965ab83bf6 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
Date: Thu, 26 Feb 2015 20:34:14 +0000
Subject: [PATCH] sh_eth: WARN on access to a register not implemented in a
 particular chip

Currently we may silently read/write a register at offset 0.  Change
this to WARN and then ignore the write or read-back all-ones.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reading git-format-patch failed