Hi Dave, It's probably a bug fix that unveils the link errors.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 32c1431eea4881a6b17bd7c639315010aeefa452 commit: ab6eb211b07a42a6346e284056422fd9a8576a99 Merge tag 'drm/panel/for-4.12-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next date: 9 weeks ago config: x86_64-randconfig-h0-06120933 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: git checkout ab6eb211b07a42a6346e284056422fd9a8576a99 # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/built-in.o: In function `s6e3ha2_remove': >> panel-samsung-s6e3ha2.c:(.text+0x1a238e): undefined reference to >> `backlight_device_unregister' drivers/built-in.o: In function `s6e3ha2_probe': >> panel-samsung-s6e3ha2.c:(.text+0x1a257d): undefined reference to >> `backlight_device_register' panel-samsung-s6e3ha2.c:(.text+0x1a2672): undefined reference to `backlight_device_unregister' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
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