On Tue, Jan 19, 2021 at 02:05:09PM +0100, Daniel Vetter wrote:
> > diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
> > index b9e9adec73e8..6eb117c0d0f3 100644
> > --- a/include/linux/lockdep.h
> > +++ b/include/linux/lockdep.h
> > @@ -310,6 +310,10 @@ extern void lock_unpin_lock(struct lockdep_map *lock, struct pin_cookie);
> > WARN_ON_ONCE(debug_locks && !lockdep_is_held(l)); \
> > } while (0)
> >
> > +#define lockdep_assert_none_held_once() do { \
> > + WARN_ON_ONCE(debug_locks && current->lockdep_depth); \
> > + } while (0)
> > +
> > #define lockdep_recursing(tsk) ((tsk)->lockdep_recursion)
> >
> > #define lockdep_pin_lock(l) lock_pin_lock(&(l)->dep_map)
> > @@ -387,6 +391,7 @@ extern int lockdep_is_held(const void *);
> > #define lockdep_assert_held_write(l) do { (void)(l); } while (0)
> > #define lockdep_assert_held_read(l) do { (void)(l); } while (0)
> > #define lockdep_assert_held_once(l) do { (void)(l); } while (0)
> > +#define lockdep_assert_none_held_once() do { } while (0)
> >
> > #define lockdep_recursing(tsk) (0)
>
> ofc needs ack from Peter, but drm parts look all good to me.
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
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