Hi Casey, I love your patch! Perhaps something to improve: [auto build test WARNING on nf-next/master] [also build test WARNING on nf/master linus/master v5.10-rc2 next-20201104] [cannot apply to 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/LSM-Module-stacking-for-AppArmor/20201105-091817 base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master config: arm-randconfig-r024-20201104 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 09ec07827b1128504457a93dee80b2ceee1af600) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/3fc93335d8a4090601fe221c305017ca73c23c61 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Casey-Schaufler/LSM-Module-stacking-for-AppArmor/20201105-091817 git checkout 3fc93335d8a4090601fe221c305017ca73c23c61 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from kernel/audit.c:51: include/linux/audit.h:585:1: error: expected external declaration +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) ^ kernel/audit.c:393:12: error: implicit declaration of function 'audit_alloc_for_lsm' [-Werror,-Wimplicit-function-declaration] context = audit_alloc_for_lsm(GFP_KERNEL); ^ kernel/audit.c:393:12: note: did you mean 'audit_alloc_local'? include/linux/audit.h:585:38: note: 'audit_alloc_local' declared here +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) ^ >> kernel/audit.c:393:10: warning: incompatible integer to pointer conversion assigning to 'struct audit_context *' from 'int' [-Wint-conversion] context = audit_alloc_for_lsm(GFP_KERNEL); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/audit.c:1357:15: error: implicit declaration of function 'audit_alloc_for_lsm' [-Werror,-Wimplicit-function-declaration] lcontext = audit_alloc_for_lsm(GFP_KERNEL); ^ kernel/audit.c:1357:13: warning: incompatible integer to pointer conversion assigning to 'struct audit_context *' from 'int' [-Wint-conversion] lcontext = audit_alloc_for_lsm(GFP_KERNEL); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/audit.c:1560:12: error: implicit declaration of function 'audit_alloc_for_lsm' [-Werror,-Wimplicit-function-declaration] context = audit_alloc_for_lsm(GFP_KERNEL); ^ kernel/audit.c:1560:10: warning: incompatible integer to pointer conversion assigning to 'struct audit_context *' from 'int' [-Wint-conversion] context = audit_alloc_for_lsm(GFP_KERNEL); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/audit.c:1781:14: warning: no previous prototype for function 'audit_serial' [-Wmissing-prototypes] unsigned int audit_serial(void) ^ kernel/audit.c:1781:1: note: declare 'static' if the function is not intended to be used outside of this translation unit unsigned int audit_serial(void) ^ static kernel/audit.c:2294:12: error: implicit declaration of function 'audit_alloc_for_lsm' [-Werror,-Wimplicit-function-declaration] context = audit_alloc_for_lsm(GFP_KERNEL); ^ kernel/audit.c:2294:10: warning: incompatible integer to pointer conversion assigning to 'struct audit_context *' from 'int' [-Wint-conversion] context = audit_alloc_for_lsm(GFP_KERNEL); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 5 warnings and 5 errors generated. -- In file included from kernel/auditfilter.c:12: include/linux/audit.h:585:1: error: expected external declaration +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) ^ kernel/auditfilter.c:1107:12: error: implicit declaration of function 'audit_alloc_for_lsm' [-Werror,-Wimplicit-function-declaration] context = audit_alloc_for_lsm(GFP_KERNEL); ^ kernel/auditfilter.c:1107:12: note: did you mean 'audit_alloc_local'? include/linux/audit.h:585:38: note: 'audit_alloc_local' declared here +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) ^ >> kernel/auditfilter.c:1107:10: warning: incompatible integer to pointer conversion assigning to 'struct audit_context *' from 'int' [-Wint-conversion] context = audit_alloc_for_lsm(GFP_KERNEL); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning and 2 errors generated. -- In file included from net/netlabel/netlabel_user.c:20: include/linux/audit.h:585:1: error: expected external declaration +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) ^ net/netlabel/netlabel_user.c:93:14: error: implicit declaration of function 'audit_alloc_for_lsm' [-Werror,-Wimplicit-function-declaration] audit_ctx = audit_alloc_for_lsm(GFP_ATOMIC); ^ net/netlabel/netlabel_user.c:93:14: note: did you mean 'audit_alloc_local'? include/linux/audit.h:585:38: note: 'audit_alloc_local' declared here +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) ^ >> net/netlabel/netlabel_user.c:93:12: warning: incompatible integer to pointer conversion assigning to 'struct audit_context *' from 'int' [-Wint-conversion] audit_ctx = audit_alloc_for_lsm(GFP_ATOMIC); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning and 2 errors generated. 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 > 393 context = audit_alloc_for_lsm(GFP_KERNEL); 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_local(ab, context); 404 return rc; 405 } 406 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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