Hi Casey, I love your patch! Perhaps something to improve: [auto build test WARNING on pcmoore-audit/next] [also build test WARNING on nf-next/master nf/master linus/master v5.17-rc2] [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/Casey-Schaufler/integrity-disassociate-ima_filter_rule-from-security_audit_rule/20220203-085302 base: https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit.git next config: x86_64-randconfig-s021 (https://download.01.org/0day-ci/archive/20220203/202202032247.KiuQ0dHH-lkp(a)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/b49b8b5cf8bdf606d1027636cf5ad2fd1cf20cb4 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Casey-Schaufler/integrity-disassociate-ima_filter_rule-from-security_audit_rule/20220203-085302 git checkout b49b8b5cf8bdf606d1027636cf5ad2fd1cf20cb4 # 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=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> kernel/audit.c:128:25: sparse: sparse: symbol 'audit_sig_lsm' was not declared. Should it be static? kernel/audit.c:2197:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ kernel/audit.c:2197:9: sparse: expected struct spinlock [usertype] *lock kernel/audit.c:2197:9: sparse: got struct spinlock [noderef] __rcu * kernel/audit.c:2200:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@ kernel/audit.c:2200:40: sparse: expected struct spinlock [usertype] *lock kernel/audit.c:2200:40: sparse: got struct spinlock [noderef] __rcu * vim +/audit_sig_lsm +128 kernel/audit.c 124 125 /* The identity of the user shutting down the audit system. */ 126 static kuid_t audit_sig_uid = INVALID_UID; 127 static pid_t audit_sig_pid = -1; > 128 struct lsmblob audit_sig_lsm; 129 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org