On Tue, 2017-11-21 at 13:17 +0100, Benjamin Beichler wrote:
>
> + /*wait for radios with deferred delete*/
please add spaces there
> + spin_lock_bh(&hwsim_delete_lock);
> + while (!list_empty(&delete_radios)) {
> + pr_debug("mac80211_hwsim: wait for deferred radio remove\n");
> + spin_unlock_bh(&hwsim_delete_lock);
> + flush_work(&list_entry(&delete_radios,
> + struct mac80211_hwsim_data, list)
> + ->destroy_work);
This can't possibly be right ... you're locking the list_empty which is
a trivial pointer comparison, but not the actual list_entry() ...
I'd also prefer you actually didn't leave the problem in part as you
describe - and a new workqueue probably isn't that much overhead and
should introduce *less* new code than this, so IMHO that's worth it.
johannes