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

[Johannes Berg <johannes@sipsolutions.net>]

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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.

johannes

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