[PATCH v2] drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap

[Gerd Hoffmann]

  Hi,

> Ah, we're not going to replace the mapping on the dma-buf file. Only
> the file of the vma structure. Doing the former would indeed be pretty
> bad from a security pov.

Now where do I get a filp from?  Can I just call drm_open?

cheers,
  Gerd