Re: [PATCH] cfg80211: Pass lockdep expression to RCU lists
From: Paul E. McKenney
Date: Wed Feb 19 2020 - 07:47:15 EST
On Wed, Feb 19, 2020 at 10:13:36AM +0100, Johannes Berg wrote:
> On Wed, 2020-02-19 at 14:41 +0530, Amol Grover wrote:
> >
> > - WARN_ON_ONCE(!rcu_read_lock_held() && !lockdep_rtnl_is_held());
> > -
> > - list_for_each_entry_rcu(pos, &rdev->sched_scan_req_list, list) {
> > + list_for_each_entry_rcu(pos, &rdev->sched_scan_req_list, list,
> > + lockdep_rtnl_is_held()) {
>
> Huh, I didn't even know you _could_ do that :)
It is a fairly recent addition, courtesy of Joel Fernandes. ;-)
Thanx, Paul