From: Christian Lamparter <chunkeey@googlemail.com>
Date: Tue, 11 Sep 2012 21:18:34 +0000 (+0200)
Subject: carl9170: fix spurious transmissions in sniffer mode
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~45^2~337^2^2~66
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0509d3bdd7365d06c9bf570bf9f118cae6cbd58;p=pandora-kernel.git

carl9170: fix spurious transmissions in sniffer mode

Several people have complained about an unusual
and undocumented feature of the AR9170 hardware:

In siffer mode, the hardware generates spurious
ACK frames for every received frame... even
broadcasts.

The reason for this malfunction is unknown:
<http://marc.info/?l=linux-wireless&m=134517238506033>
But there's a workaround: Instead of the special
sniffer mode, the hardware will be put into
station mode and all rx filters are disabled.

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Reported-by: Marco Fonseca <marco@tampabay.rr.com>
Reported-by: Janusz Dziedzic <janusz.dziedzic@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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