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]
[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: i386-randconfig-s031-20211207 (https://download.01.org/0day-ci/archive/20211210/202112102358.AmVci5Ag-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # 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 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
   drivers/md/dm-ioctl.c: note: in included file:
>> include/linux/ima.h:263:5: sparse: sparse: undefined preprocessor identifier 'CONFIG_IMA'
--
   fs/open.c: note: in included file:
>> include/linux/ima.h:263:5: sparse: sparse: undefined preprocessor identifier 'CONFIG_IMA'
   fs/open.c:1011:21: sparse: sparse: restricted fmode_t degrades to integer
--
   fs/file_table.c: note: in included file:
>> include/linux/ima.h:263:5: sparse: sparse: undefined preprocessor identifier 'CONFIG_IMA'
--
   fs/namei.c: note: in included file:
>> include/linux/ima.h:263:5: sparse: sparse: undefined preprocessor identifier 'CONFIG_IMA'
   fs/namei.c:680:17: sparse: sparse: context imbalance in 'terminate_walk' - unexpected unlock
   fs/namei.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...):
   include/linux/rcupdate.h:718:9: sparse: sparse: context imbalance in 'try_to_unlazy' - unexpected unlock
   include/linux/rcupdate.h:718:9: sparse: sparse: context imbalance in 'try_to_unlazy_next' - unexpected unlock
   fs/namei.c:2318:19: sparse: sparse: context imbalance in 'path_init' - different lock contexts for basic block
--
   fs/attr.c: note: in included file:
>> include/linux/ima.h:263:5: sparse: sparse: undefined preprocessor identifier 'CONFIG_IMA'
--
   security/security.c: note: in included file:
>> include/linux/ima.h:263:5: sparse: sparse: undefined preprocessor identifier 'CONFIG_IMA'
   security/security.c:358:25: sparse: sparse: cast removes address space '__rcu' of expression
--
   security/keys/key.c: note: in included file:
>> include/linux/ima.h:263:5: sparse: sparse: undefined preprocessor identifier 'CONFIG_IMA'
   security/keys/key.c:123:17: sparse: sparse: context imbalance in 'key_user_put' - unexpected unlock

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