linux-kernel - Re: [Bug #14267] Disassociating atheros wlan

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Message-Id: <200911221519.54284.rjw@sisk.pl>
Date:	Sun, 22 Nov 2009 15:19:54 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Johannes Berg <johannes@...solutions.net>,
	"John W. Linville" <linville@...driver.com>,
	"Luis R. Rodriguez" <lrodriguez@...eros.com>
Cc:	"Justin P. Mattock" <justinmattock@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Kristoffer Ericson <kristoffer.ericson@...il.com>,
	linux-wireless@...r.kernel.org
Subject: Re: [Bug #14267] Disassociating atheros wlan

On Sunday 22 November 2009, Johannes Berg wrote:
> On Sat, 2009-11-21 at 09:38 -0800, Justin P. Mattock wrote:
> 
> > I did a bisect yesterday on this, and the results
> > seemed to have worked over here by reverting:
> > 
> > 75e6c3b72b3ab01c47629f3fbd0fed4e6550bf3a
> > cfg80211: lower dynamic PS timeout to 100ms
> > 
> > if Kristoffer can try reverting this one
> > to see, then we can go from there.
> 
> So that just means the driver is broken. Please run
> 
> 	iwconfig wlan0 power off
> 
> to fix it then. And the patch below will disable it by default since
> it's broken.
> 
> johannes
> 
> --- wireless-testing.orig/drivers/net/wireless/ath/ath9k/main.c	2009-11-22 11:44:41.000000000 +0100
> +++ wireless-testing/drivers/net/wireless/ath/ath9k/main.c	2009-11-22 11:45:26.000000000 +0100
> @@ -1893,6 +1893,8 @@ void ath_set_hw_capab(struct ath_softc *
>  		BIT(NL80211_IFTYPE_ADHOC) |
>  		BIT(NL80211_IFTYPE_MESH_POINT);
>  
> +	hw->wiphy->ps_default = false;
> +
>  	hw->queues = 4;
>  	hw->max_rates = 4;
>  	hw->channel_change_time = 5000;

OK, so perhaps this patch should be applied until th ath9k driver is fixed?  Luis?  John?
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