[PATCH v2 2/7] ath10k: implement chanctx API

[Johannes Berg]

On Fri, 2015-01-30 at 14:02 +0100, Michal Kazior wrote:

> I recall that at least there's one case where using these helpers is
> impossible: drv_config() which can be called while mac80211 is already
> holding iflist_mtx. ath10k needs to iterate over vifs and issue
> blocking commands sometimes so it can't use atomic/rcu versions
> either.

If you wanted to use it, I wouldn't be averse to adding a locked version
that can only be used inside a few of such callbacks. With appropriate
lockdep warnings that would be safe enough, I think.

johannes