On Wed, May 27, 2020 at 11:48:58AM +0200, Sebastian Andrzej Siewior wrote:
> On 2020-04-23 16:31:55 [-0300], Luis Claudio R. Goncalves wrote:
> …
> > Replacing local_irq_save()/bh_lock_sock() by spin_lock_bh() keeps the semantics
> > and does the right thing under PREEMPT_RT.
>
> Nope. The irq-off was introduced in commit
> fad003b6c8e3d ("Bluetooth: Fix inconsistent lock state with RFCOMM")
>
> It doesn't look right. Could you please revert that commit and check if
> lockdep still complains?
Thanks, Sebastian! I built a kernel with commit fad003b6c8e3d reverted and
the lockdep complaints are gone.
Luis
