Function prototype or declaration at include/drm/drm_vblank.h, line 208 References: drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c, line 273 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c, line 1003 drivers/gpu/drm/armada/armada_drv.c, line 143 drivers/gpu/drm/aspeed/aspeed_gfx_drv.c, line 154 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c, line 732 drivers/gpu/drm/drm_vblank.c, line 457 drivers/gpu/drm/drm_vblank.c, line 502 drivers/gpu/drm/gma500/psb_drv.c, line 345 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c, line 290 drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c, line 183 drivers/gpu/drm/i915/i915_drv.c, line 285 drivers/gpu/drm/mga/mga_dma.c, line 427 drivers/gpu/drm/nouveau/nouveau_display.c, line 191 drivers/gpu/drm/radeon/radeon_irq_kms.c, line 297 drivers/gpu/drm/vkms/vkms_drv.c, line 173 drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c, line 505 drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c, line 507 drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c, line 964 drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c, line 1894 include/drm/drm_vblank.h, line 208