[chunkuang.hu:mediatek-cmdq3 18/21] ERROR: modpost: "mtk_mutex_prepare" undefined!

[chunkuang.hu:mediatek-cmdq3 18/21] ERROR: modpost: "mtk_mutex_prepare" undefined!

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git mediatek-cmdq3
head:   f437ef81a7d0ae27bc340382cdfe96228307d5bf
commit: 975dacd7c4d260adda0348a9f0227e50c16390a0 [18/21] soc / drm: mediatek: Move mtk mutex driver to soc folder
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/commit/?id=975dacd7c4d260adda0348a9f0227e50c16390a0
        git remote add chunkuang.hu https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git
        git fetch --no-tags chunkuang.hu mediatek-cmdq3
        git checkout 975dacd7c4d260adda0348a9f0227e50c16390a0
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "mtk_mutex_prepare" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_get" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_enable" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_acquire" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_unprepare" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_release" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_put" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_disable" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_remove_comp" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!
>> ERROR: modpost: "mtk_mutex_add_comp" [drivers/gpu/drm/mediatek/mediatek-drm.ko] undefined!

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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