drm/gem: drm_gem_dumb_map_offset(): reject dma-buf
Reject mapping an imported dma-buf since is's an invalid use-case.
Cc: Philipp Zabel <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: Sean Paul <[email protected]>
Cc: Daniel Vetter <[email protected]>
Signed-off-by: Noralf Trønnes <[email protected]>
Acked-by: Daniel Vetter <[email protected]>
Acked-by: Eric Anholt <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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