Re: [PATCH 2/2] cfg80211: decouple regulatory variables from cfg80211_mutex

["Luis R. Rodriguez" <lrodriguez@atheros.com>]

On Thu, Jul 30, 2009 at 8:32 AM, Johannes Berg<johannes@sipsolutions.net> wrote:
> On Thu, 2009-07-30 at 07:54 -0700, Luis R. Rodriguez wrote:
>> On Thu, Jul 30, 2009 at 12:43 AM, Johannes
>> Berg<johannes@sipsolutions.net> wrote:
>> > On Wed, 2009-07-29 at 17:46 -0700, Luis R. Rodriguez wrote:
>> >> We change regulatory code to be protected by its own regulatory
>> >> spinlock and alleviate cfg80211_mutex to only be used to protect
>> >> cfg80211_rdev_list, the registered device list.
>> >>
>> >> By doing this we will be able to work on regulatory core components
>> >> without having to have hog up the cfg80211_mutex. An example here is
>> >> we no longer need to use the cfg80211_mutex during the country IE
>> >> regulatory hint; by doing so we end up curing this new lockdep warning:
>> >
>> > This is ok with me, but be sure that it changes the API between drivers
>> > and cfg80211 -- the reg notifier can no longer sleep now.
>>
>> We could use a mutex as well.
>
> Right. I don't care, just wanted you to be aware of the change. I don't
> expect many drivers to really use the reg notifier stuff so if it
> doesn't matter for ath.ko it probably just doesn't matter.

Yeah understood, I'll still respin with a mutex.

  Luis