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

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Date:	Sun, 22 Nov 2009 11:47:03 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	"John W. Linville" <linville@...driver.com>,
	Kristoffer Ericson <kristoffer.ericson@...il.com>
Subject: Re: [Bug #14267] Disassociating atheros wlan

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;


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