[PATCH] drm/atomic: Set current atomic state in drm_private_state

[Alexandru-Cosmin Gheorghe]

On Fri, Jun 15, 2018 at 11:38:44PM +0300, Ville Syrjälä wrote:
> On Wed, May 30, 2018 at 11:22:27PM +0300, Ville Syrjälä wrote:
> > On Wed, May 30, 2018 at 06:30:52PM +0100, Alexandru Gheorghe wrote:
> > > drm_private_state has a back pointer to the drm_atomic_state,
> > > however that was not initialized in drm_atomic_get_private_obj_state
> > > after duplication, as it is the case for other drm atomic getters
> > > 
> > > Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe at arm.com>
> > > ---
> > >  drivers/gpu/drm/drm_atomic.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> > > index 7d25c42..249aaf8 100644
> > > --- a/drivers/gpu/drm/drm_atomic.c
> > > +++ b/drivers/gpu/drm/drm_atomic.c
> > > @@ -1108,6 +1108,7 @@ drm_atomic_get_private_obj_state(struct drm_atomic_state *state,
> > >  	state->private_objs[index].old_state = obj->state;
> > >  	state->private_objs[index].new_state = obj_state;
> > >  	state->private_objs[index].ptr = obj;
> > > +	obj_state->state = state;
> > 
> > Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> And finally pushed to frm-misc-next. Almost forgot about this one.
> 
> Thanks for the patch.

Thanks for pushing it.

> 
> > 
> > I guess no one ever used that pointer. Should we add some WARNs
> > to drm_atomic_helper_swap_state() to make sure these are correct?
> > 
> > I think in general life might be nicer if we didn't even have these
> > pointers at all. As it stands it's pretty easy to accidentally
> > use them when you're not supposed to (eg. after swap_state() try
> > to use the new_state->state). But there's tons of code that would
> > need to be touched to eliminate them so not a very pleasant project.
> > 
> > >  
> > >  	state->num_private_objs = num_objs;
> > >  
> > > -- 
> > > 2.7.4
> > > 
> > > _______________________________________________
> > > dri-devel mailing list
> > > dri-devel at lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> > 
> > -- 
> > Ville Syrjälä
> > Intel
> 
> -- 
> Ville Syrjälä
> Intel
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Cheers,
Alex G