From: Andriy Tkachuk <andrit@ukr.net>
Date: Wed, 20 Jan 2010 11:55:06 +0000 (+0200)
Subject: mac80211: Account HT Control field in Data frame hdrlen according to 802.11n-2009
X-Git-Tag: v2.6.34-rc1~233^2~421^2~87
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0dd2de0d055f0ffb1e2ecdc21380de9d12a85e2;p=pandora-kernel.git

mac80211: Account HT Control field in Data frame hdrlen according to 802.11n-2009

ieee80211_hdrlen() should account account new HT Control field in 802.11
data frame header introduced by IEEE 802.11n standard.

According to 802.11n-2009 HT Control field is present in data frames
when both of following are met:

   1. It is QoS data frame.
   2. Order bit is set in Frame Control field.

The change might be totally compatible with legacy non-11n aware frames,
because 802.11-2007 standard states that "all QoS STAs set this subfield
to 0".

Signed-off-by: Andriy V. Tkachuk <andrit@ukr.net>
Acked-by : Benoit Papillault <benoit.papillault@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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