kernel test robot <lkp@xxxxxxxxx> writes: > 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! Hm, missing the EXPORT_SYMBOL() since this is called from filesystems. I will add it for v2. -- Gabriel Krisman Bertazi