[hverkuil-media-tree:extron 2/2] ld.lld: error: undefined symbol: v4l2_device_register

[hverkuil-media-tree:extron 2/2] ld.lld: error: undefined symbol: v4l2_device_register

[kernel test robot]

tree:   git://linuxtv.org/hverkuil/media_tree.git extron
head:   d25c7a9925ea4a748782ad0b1f951716be89d672
commit: d25c7a9925ea4a748782ad0b1f951716be89d672 [2/2] cec/extron: add the Extron CEC driver
config: x86_64-randconfig-r002-20220516 (https://download.01.org/0day-ci/archive/20220517/202205170716.EOe20iPO-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 853fa8ee225edf2d0de94b0dcbd31bea916e825e)
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
        git remote add hverkuil-media-tree git://linuxtv.org/hverkuil/media_tree.git
        git fetch --no-tags hverkuil-media-tree extron
        git checkout d25c7a9925ea4a748782ad0b1f951716be89d672
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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 >>):

   vmlinux.o: warning: objtool: bmi160_data_rdy_trigger_set_state()+0x8e: sibling call from callable instruction with modified stack frame
>> ld.lld: error: undefined symbol: v4l2_device_register
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_connect)
--
>> ld.lld: error: undefined symbol: v4l2_device_unregister
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_connect)
--
>> ld.lld: error: undefined symbol: v4l2_set_edid_phys_addr
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_s_edid)
--
>> ld.lld: error: undefined symbol: video_device_release_empty
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_videodev)
--
>> ld.lld: error: undefined symbol: v4l2_ctrl_poll
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_fops)
--
>> ld.lld: error: undefined symbol: video_ioctl2
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_fops)
--
>> ld.lld: error: undefined symbol: v4l2_fh_open
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_fops)
--
>> ld.lld: error: undefined symbol: v4l2_fh_release
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_fops)
--
>> ld.lld: error: undefined symbol: v4l2_ctrl_subscribe_event
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_ioctl_ops)
--
>> ld.lld: error: undefined symbol: v4l2_event_unsubscribe
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_ioctl_ops)
--
>> ld.lld: error: undefined symbol: video_unregister_device
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_disconnect)
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_setup_thread)
   >>> referenced by fbdev.c
   >>> vmlinux.o:(extron_setup_thread)
..

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