Avoid the use of struct drm_gem_object.import_attach to get the object's dma-buf or test for an imported buffer. The import_attach field in struct drm_gem_object is an artifact of the import process, but should not be used otherwise.
The helper drm_gem_is_imported() tests if a GEM object's buffer has been imported into the driver. The corresponding dma-buf is referenced by the object itself. Both cases avoid import_attach. Thomas Zimmermann (2): drm/amdgpu: Test for imported buffers with drm_gem_is_imported() drm/amdgpu: Use dma_buf from GEM object instance drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 4 ++-- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 5 ++--- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 14 ++++++-------- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 +++--- 6 files changed, 15 insertions(+), 18 deletions(-) -- 2.49.0