Hi Gabriel, I love your patch! Yet something to improve: [auto build test ERROR on tytso-ext4/dev] [also build test ERROR on jaegeuk-f2fs/dev-test linus/master v5.19-rc3 next-20220622] [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/intel-lab-lkp/linux/commits/Gabriel-Krisman-Bertazi/Support-negative-dentries-on-case-insensitive-directories/20220623-034942 base: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev config: x86_64-randconfig-a006 (https://download.01.org/0day-ci/archive/20220623/202206231550.0JrilBjp-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/69488ccc517a48af2f1cec0efb84651397edf6f6 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Gabriel-Krisman-Bertazi/Support-negative-dentries-on-case-insensitive-directories/20220623-034942 git checkout 69488ccc517a48af2f1cec0efb84651397edf6f6 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "d_set_casefold_lookup" [fs/ext4/ext4.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp
