Date: Sat, 27 Aug 2011 15:41:49 +0530
From: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
To: <johannes@sipsolutions.net>
CC: <linux-wireless@vger.kernel.org>
Subject: Re: [RFC] mac80211: stop tx before doing hw config and rate update
Message-ID: <20110827101147.GA8372@vmraj-lnx.users.atheros.com> (sfid-20110827_121145_869699_EE612244)
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On Mon, Aug 15, 2011 at 07:47:19PM +0530, Rajkumar Manoharan wrote:
> The assumption is that during the hw config, transmission was
> already stopped by mac80211. But during channel type change,
> the mac80211 continue to transmit frames. The driver like ath9k
> does chip reset while doing channel set. This could leads to
> buffer overflow at driver side. And also after setting the channel
> at driver side and before calling rate updation, the frames are
> continued to xmit with older rates. This patch ensures that
> the frames are always xmitted with updated rates and avoid buffer
> overflow.
> 
Any comments are welcome

--
Rajkumar