Hi Casey, I love your patch! Perhaps something to improve: [auto build test WARNING on pcmoore-audit/next] [also build test WARNING on nf/master linus/master v5.14-rc2] [cannot apply to nf-next/master security/next-testing next-20210721] [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/LSM-Infrastructu... base: https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit.git next config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 10.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/06ec035c23ade985d4661768f52f2e8cd... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Casey-Schaufler/LSM-Infrastructure-management-of-the-sock-security/20210722-094735 git checkout 06ec035c23ade985d4661768f52f2e8cda1ce313 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from kernel/audit.c:51: include/linux/audit.h:571:1: error: expected identifier or '(' before '+' token 571 | +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) | ^ kernel/audit.c: In function 'audit_log_config_change': kernel/audit.c:393:12: error: implicit declaration of function 'audit_alloc_for_lsm'; did you mean 'audit_alloc_mark'? [-Werror=implicit-function-declaration] 393 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^~~~~~~~~~~~~~~~~~~ | audit_alloc_mark 393 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^ kernel/audit.c: In function 'audit_receive_msg': kernel/audit.c:1358:13: warning: assignment to 'struct audit_context *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1358 | lcontext = audit_alloc_for_lsm(GFP_KERNEL); | ^ kernel/audit.c:1381:13: warning: assignment to 'struct audit_context *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1381 | lcontext = audit_alloc_for_lsm(GFP_KERNEL); | ^ kernel/audit.c:1399:12: warning: assignment to 'struct audit_context *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1399 | lcontext = audit_alloc_for_lsm(GFP_KERNEL); | ^ kernel/audit.c:1431:12: warning: assignment to 'struct audit_context *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1431 | lcontext = audit_alloc_for_lsm(GFP_KERNEL); | ^ kernel/audit.c:1505:12: warning: assignment to 'struct audit_context *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1505 | lcontext = audit_alloc_for_lsm(GFP_KERNEL); | ^ kernel/audit.c: In function 'audit_log_multicast': kernel/audit.c:1567:10: warning: assignment to 'struct audit_context *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1567 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^ kernel/audit.c: At top level: kernel/audit.c:1789:14: warning: no previous prototype for 'audit_serial' [-Wmissing-prototypes] 1789 | unsigned int audit_serial(void) | ^~~~~~~~~~~~ kernel/audit.c: In function 'audit_log_vformat': kernel/audit.c:1937:2: warning: function 'audit_log_vformat' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 1937 | len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args); | ^~~ kernel/audit.c:1946:3: warning: function 'audit_log_vformat' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 1946 | len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args2); | ^~~ kernel/audit.c: In function 'audit_log_set_loginuid': kernel/audit.c:2334:10: warning: assignment to 'struct audit_context *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 2334 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^ In file included from include/linux/perf_event.h:25, from include/linux/trace_events.h:10, from include/trace/syscall.h:7, from include/linux/syscalls.h:87, from kernel/audit.c:44: At top level: arch/arc/include/asm/perf_event.h:126:23: warning: 'arc_pmu_cache_map' defined but not used [-Wunused-const-variable=] 126 | static const unsigned arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { | ^~~~~~~~~~~~~~~~~ arch/arc/include/asm/perf_event.h:91:27: warning: 'arc_pmu_ev_hw_map' defined but not used [-Wunused-const-variable=] 91 | static const char * const arc_pmu_ev_hw_map[] = { | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from kernel/auditfilter.c:12: include/linux/audit.h:571:1: error: expected identifier or '(' before '+' token 571 | +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) | ^ kernel/auditfilter.c: In function 'audit_log_rule_change': kernel/auditfilter.c:1107:12: error: implicit declaration of function 'audit_alloc_for_lsm'; did you mean 'audit_alloc_mark'? [-Werror=implicit-function-declaration] 1107 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^~~~~~~~~~~~~~~~~~~ | audit_alloc_mark 1107 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^ cc1: some warnings being treated as errors -- In file included from security/integrity/integrity_audit.c:12: include/linux/audit.h:571:1: error: expected identifier or '(' before '+' token 571 | +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) | ^ security/integrity/integrity_audit.c: In function 'integrity_audit_message': security/integrity/integrity_audit.c:48:12: error: implicit declaration of function 'audit_alloc_for_lsm'; did you mean 'audit_log_format'? [-Werror=implicit-function-declaration] 48 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^~~~~~~~~~~~~~~~~~~ | audit_log_format 48 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^ cc1: some warnings being treated as errors -- In file included from security/integrity/ima/ima.h:22, from security/integrity/ima/ima_api.c:18: include/linux/audit.h:571:1: error: expected identifier or '(' before '+' token 571 | +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) | ^ security/integrity/ima/ima_api.c: In function 'ima_audit_measurement': security/integrity/ima/ima_api.c:362:12: error: implicit declaration of function 'audit_alloc_for_lsm'; did you mean 'audit_log_format'? [-Werror=implicit-function-declaration] 362 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^~~~~~~~~~~~~~~~~~~ | audit_log_format 362 | context = audit_alloc_for_lsm(GFP_KERNEL); | ^ cc1: some warnings being treated as errors vim +393 kernel/audit.c 385 386 static int audit_log_config_change(char *function_name, u32 new, u32 old, 387 int allow_changes) 388 { 389 struct audit_context *context; 390 struct audit_buffer *ab; 391 int rc = 0; 392 394 ab = audit_log_start(context, GFP_KERNEL, AUDIT_CONFIG_CHANGE); 395 if (unlikely(!ab)) 396 return rc; 397 audit_log_format(ab, "op=set %s=%u old=%u ", function_name, new, old); 398 audit_log_session_info(ab); 399 rc = audit_log_task_context(ab); 400 if (rc) 401 allow_changes = 0; /* Something weird, deny request */ 402 audit_log_format(ab, " res=%d", allow_changes); 403 audit_log_end(ab); 404 audit_free_local(context); 405 return rc; 406 } 407 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org