Quoting Chris Wilson (2019-08-09 12:58:51)
> Quoting Lionel Landwerlin (2019-08-09 12:30:30)
> > +               if (flags & I915_DRM_SYNCOBJ_BINARY_ITEM_VALUE_READ) {
> > +                       copy_to_user(&values[i], 
> > &syncobjs[i]->binary_payload, sizeof(values[i]));
> > +                       ret = ret ? -EFAULT : 0;
> 
> More magic.
> 
> if (put_user(&syncobjs[i]->binary_payload, &values[i]))
>         return -EFAULT;

(break not yet)

Should just be put_user(syncobjs[i]->binary_payload, &values[i])
The value of, not its address.
-Chris
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