ERROR: "vmf_insert_mixed" [drivers/gpu/drm/exynos/exynosdrm.ko] undefined!

From: kbuild test robot
Date: Wed Jul 24 2019 - 18:36:15 EST

tree: master
head: bed38c3e2dca01b358a62b5e73b46e875742fd75
commit: 156bdac99061b4013c8e47799c6e574f7f84e9f4 drm/exynos: trigger build of all modules
date: 4 weeks ago
config: h8300-allmodconfig (attached as .config)
compiler: h8300-linux-gcc (GCC) 7.4.0
wget -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 156bdac99061b4013c8e47799c6e574f7f84e9f4
# save the attached .config to linux build tree
GCC_VERSION=7.4.0 make.cross ARCH=h8300

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> ERROR: "vmf_insert_mixed" [drivers/gpu/drm/exynos/exynosdrm.ko] undefined!

0-DAY kernel test infrastructure Open Source Technology Center Intel Corporation

Attachment: .config.gz
Description: application/gzip