From 63ded3f059f5c906fdef4b7f0663fb39c4d96c8e Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 19 Dec 2013 18:01:50 +0100
Subject: [PATCH] ath9k: fix TSF offset precision issue

Dividing the beacon interval by ATH_BCBUF (8) truncates the result for
the default beacon interval of 100.
Fix the calculation by moving the division after conversion from TU to
microseconds.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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