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From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org
Subject: Re: [PATCH 2/2] ath10k: fix mu-mimo rx status reporting
Date: Wed, 9 Sep 2015 12:33:23 +0300	[thread overview]
Message-ID: <877fo09bto.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <1440679653-20289-2-git-send-email-michal.kazior@tieto.com> (Michal Kazior's message of "Thu, 27 Aug 2015 14:47:33 +0200")

Michal Kazior <michal.kazior@tieto.com> writes:

> MU-MIMO Rx involves different interpretation of
> the VHT-SIG-A compared to SU-MIMO.
>
> The incorrect interpretation led ath10k to report
> VHT MCS values greater than 9 which subsequently
> prompted mac80211 to drop such frames. This
> effectively broke Rx with MU-MIMO in many cases
> and manifested with a kernel warning in the log
> which looked like this:
>
>   [   14.552520] WARNING: CPU: 2 PID: 0 at net/mac80211/rx.c:3578 ieee80211_rx+0x26c/0x940 [mac80211]()
>   [   14.552522] Rate marked as a VHT rate but data is invalid: MCS: 10, NSS: 2
>   ... call trace follows ...
>
> Signed-off-by: Michal Kazior <michal.kazior@tieto.com>

Thanks, patch 2 applied.

-- 
Kalle Valo

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  reply	other threads:[~2015-09-09  9:33 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-27 12:47 [PATCH 1/2] ath10k: change beamformee VHT STS capability Michal Kazior
2015-08-27 12:47 ` [PATCH 2/2] ath10k: fix mu-mimo rx status reporting Michal Kazior
2015-09-09  9:33   ` Kalle Valo [this message]
2015-08-28 12:56 ` [PATCH 1/2] ath10k: change beamformee VHT STS capability Bartosz Markowski
2015-09-02 11:25   ` Bartosz Markowski
2015-09-02 13:55     ` Kalle Valo
2015-09-02 14:45       ` Bartosz Markowski

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