Hi Stefan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on zohar-integrity/next-integrity] [also build test WARNING on linux/master linus/master v5.16-rc4 next-20211208] [cannot apply to jmorris-security/next-testing] [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/Stefan-Berger/ima-Namespace-IMA-with-audit-support-in-IMA-ns/20211209-062017 base: https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20211209/202112091252.hCpFK6H4-lkp@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/0e5d16c2da02e9c61692836edf0b6f7f227e1867 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Stefan-Berger/ima-Namespace-IMA-with-audit-support-in-IMA-ns/20211209-062017 git checkout 0e5d16c2da02e9c61692836edf0b6f7f227e1867 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from fs/open.c:32: include/linux/ima.h: In function 'create_ima_ns': >> include/linux/ima.h:263:5: warning: "CONFIG_IMA" is not defined, evaluates to 0 [-Wundef] 263 | #if CONFIG_IMA | ^~~~~~~~~~ vim +/CONFIG_IMA +263 include/linux/ima.h 260 261 static inline int create_ima_ns(struct user_namespace *user_ns) 262 { > 263 #if CONFIG_IMA 264 user_ns->ima_ns = get_ima_ns(&init_ima_ns); 265 #endif 266 return 0; 267 } 268 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org