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

From: Randy Dunlap <[email-masked]>
Date: Fri, 26 Jan 2018 10:29:30 -0800

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

-- 
~Randy