From a1c781bb20ac1e03280e420abd47a99eb8bbdd3b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 13 Aug 2013 12:33:28 +0200
Subject: [PATCH] ath9k: avoid accessing MRC registers on single-chain devices

They are not implemented, and accessing them might trigger errors

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Reading git-format-patch failed