netdev - Re: assert_cfg80211_lock warning with Linux v3.5-8833-g2d53492

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Message-ID: <50195BEF.8010206@broadcom.com>
Date:	Wed, 1 Aug 2012 18:40:15 +0200
From:	"Arend van Spriel" <arend@...adcom.com>
To:	"John W. Linville" <linville@...driver.com>
cc:	"Josh Boyer" <jwboyer@...hat.com>,
	"Johannes Berg" <johannes@...solutions.net>,
	"Brett Rudley" <brudley@...adcom.com>,
	"Roland Vossen" <rvossen@...adcom.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	"Seth Forshee" <seth.forshee@...onical.com>
Subject: Re: assert_cfg80211_lock warning with Linux v3.5-8833-g2d53492

On 08/01/2012 05:52 PM, John W. Linville wrote:
> On Wed, Aug 01, 2012 at 05:51:08PM +0200, Arend van Spriel wrote:
>> On 08/01/2012 05:38 PM, Arend van Spriel wrote:
>>>> brcmsmac needs to hold cfg80211_mutex before calling freq_reg_info...
>>>>>
>>>>> It looks like those calls were added in mid-June.
>>>>>
>>> I think mid-june sounds about right. We never observed the warning when
>>> changes to use regulatory infrastructure were tested/reviewed. Should
>>> this precondition be mentioned in cfg80211.h?
>>>
>>> Gr. AvS
>>
>> Diving in further it seems brcmsmac can not grab the cfg80211_mutex. So
>> another solution is needed.
> 
> Do we need to revert those patches?
> 

either that or fix it.

Gr. AvS

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