Hi Igor, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v5.12-rc7 next-20210414] [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/Igor-Matheus-Andrade-Torrente/me... base: git://linuxtv.org/media_tree.git master config: mips-allmodconfig (attached as .config) compiler: mips-linux-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://github.com/0day-ci/linux/commit/5ebc6ee36ab41ef33118579b1b4b8c250... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Igor-Matheus-Andrade-Torrente/media-em28xx-Fix-race-condition-between-open-and-init-function/20210415-001136 git checkout 5ebc6ee36ab41ef33118579b1b4b8c2500041cb6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org