From 49685634c6cb943ba9b35ff182ee479ca5b73302 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 14 Dec 2013 18:03:42 +0100
Subject: [PATCH] ath9k_hw: remove additional_swba_backoff

It is unused

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