[PATCH] opp: convert dev_warn() to dev_dbg() for duplicate OPPs

[Viresh Kumar]

On 24 November 2014 at 20:39, Rafael J. Wysocki <rjw at rjwysocki.net> wrote:
> I hope that doesn't happen under rcu_read_lock()?

No. Should it?

> The modification needs to be done under dev_opp_list_lock in the first place

Yeah, its there to protect against other updaters.

> in which case you don't need the _rcu version of list walking, so you simply
> can use list_for_each_entry_safe() here. The mutex is sufficient for the
> synchronization with other writers (if any).  The freeing, though, has to be

Correct.

> deferred until all readers drop their references to the old entry.  You can
> use kfree_rcu() for that.

Cool. I understood the concept atleast. And yes I followed the srcu mail from
paul as well.. Will reply there.