Function prototype or declaration at include/linux/component.h, line 91 References: drivers/gpu/drm/exynos/exynos_drm_drv.c, line 359 drivers/gpu/drm/ingenic/ingenic-drm-drv.c, line 1420 drivers/gpu/drm/mediatek/mtk_drm_drv.c, line 656 drivers/gpu/drm/msm/msm_drv.c, line 1285 drivers/gpu/drm/rockchip/rockchip_drm_drv.c, line 413 drivers/gpu/drm/sun4i/sun4i_drv.c, line 402 drivers/gpu/drm/vc4/vc4_drv.c, line 351 drivers/iommu/mtk_iommu.c, line 962 drivers/iommu/mtk_iommu_v1.c, line 695 drivers/misc/mei/hdcp/mei_hdcp.c, line 853 drivers/misc/mei/pxp/mei_pxp.c, line 199 drivers/power/supply/ab8500_charger.c, line 3727 sound/soc/codecs/wcd938x.c, line 4522