Extern or forward variable declaration at include/drm/drm_connector.h, line 40 References: drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c, line 260 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c, line 1661 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c, line 278 drivers/gpu/drm/arm/malidp_planes.c, line 118 drivers/gpu/drm/armada/armada_debugfs.c, line 22 drivers/gpu/drm/drm_atomic.c, line 621 drivers/gpu/drm/drm_atomic.c, line 933 drivers/gpu/drm/drm_atomic.c, line 1215 drivers/gpu/drm/drm_atomic.c, line 1711 drivers/gpu/drm/drm_atomic.c, line 1732 drivers/gpu/drm/drm_atomic.c, line 1785 drivers/gpu/drm/drm_atomic.c, line 1796 drivers/gpu/drm/drm_mm.c, line 900 drivers/gpu/drm/drm_mm.c, line 918 drivers/gpu/drm/drm_print.c, line 31 drivers/gpu/drm/drm_print.c, line 37 drivers/gpu/drm/drm_print.c, line 43 drivers/gpu/drm/drm_print.c, line 54 drivers/gpu/drm/etnaviv/etnaviv_drv.c, line 150 drivers/gpu/drm/etnaviv/etnaviv_drv.c, line 161 drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c, line 870 drivers/gpu/drm/msm/msm_debugfs.c, line 57 drivers/gpu/drm/nouveau/nouveau_ttm.c, line 183 drivers/gpu/drm/nouveau/nouveau_ttm.c, line 257 drivers/gpu/drm/omapdrm/omap_debugfs.c, line 53 drivers/gpu/drm/qxl/qxl_ttm.c, line 461 drivers/gpu/drm/radeon/radeon_ttm.c, line 1037 drivers/gpu/drm/tegra/drm.c, line 1072 drivers/gpu/drm/tilcdc/tilcdc_drv.c, line 501 drivers/gpu/drm/virtio/virtgpu_ttm.c, line 195 drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c, line 160 include/drm/drm_atomic.h, line 555 include/drm/drm_connector.h, line 40 include/drm/drm_connector.h, line 654 include/drm/drm_crtc.h, line 55 include/drm/drm_crtc.h, line 658