Hi Deborah,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v5.14-rc7 next-20210824]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Deborah-Brouwer/media-vivid-add-signal-free-time-for-cec-message-xfer/20210824-123048
base:   git://linuxtv.org/media_tree.git master
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 11.2.0
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://github.com/0day-ci/linux/commit/f6329cb1dab2e3907f6f549673d3b6295572de51
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Deborah-Brouwer/media-vivid-add-signal-free-time-for-cec-message-xfer/20210824-123048
        git checkout f6329cb1dab2e3907f6f549673d3b6295572de51
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   m68k-linux-ld: drivers/media/test-drivers/vivid/vivid-cec.o: in function `vivid_cec_bus_thread':

quoted

vivid-cec.c:(.text+0x620): undefined reference to `__udivdi3'

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