Function prototype or declaration at include/drm/drm_drv.h, line 789 References: drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c, line 1078 drivers/gpu/drm/aspeed/aspeed_gfx_drv.c, line 222 drivers/gpu/drm/ast/ast_drv.c, line 97 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c, line 847 drivers/gpu/drm/bochs/bochs_drv.c, line 118 drivers/gpu/drm/drm_drv.c, line 803 drivers/gpu/drm/drm_drv.c, line 821 drivers/gpu/drm/drm_pci.c, line 228 drivers/gpu/drm/gma500/psb_drv.c, line 436 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c, line 330 drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c, line 266 drivers/gpu/drm/mgag200/mgag200_drv.c, line 63 drivers/gpu/drm/nouveau/nouveau_drm.c, line 739 drivers/gpu/drm/nouveau/nouveau_drm.c, line 1289 drivers/gpu/drm/radeon/radeon_drv.c, line 370 drivers/gpu/drm/virtio/virtgpu_drv.c, line 107 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c, line 1447 drivers/gpu/drm/xen/xen_drm_front.c, line 532 include/drm/drm_drv.h, line 789