Re: linux-next: Tree for Jan 26 (gpu/drm/i915/)

On 01/25/2018 06:58 PM, Stephen Rothwell wrote:

Hi all,

Changes since 20180119:

on x86_64: drivers/gpu/drm/i915/intel_panel.o: In function `intel_backlight_device_register': intel_panel.c:(.text+0x28d4): undefined reference to `backlight_device_register' drivers/gpu/drm/i915/intel_panel.o: In function `intel_backlight_device_unregister': intel_panel.c:(.text+0x2991): undefined reference to `backlight_device_unregister'

when CONFIG_BACKLIGHT_CLASS_DEVICE=m and CONFIG_DRM_I915=y