Hi Casey, I love your patch! Yet something to improve: [auto build test ERROR on nf-next/master] [also build test ERROR on nf/master linus/master v5.10-rc3 next-20201110] [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-stack... base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master config: powerpc-allnoconfig (attached as .config) compiler: powerpc-linux-gcc (GCC) 9.3.0 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/3fc93335d8a4090601fe221c305017ca7... 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=gcc-9.3.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from arch/powerpc/kernel/ptrace/ptrace.c:20: include/linux/audit.h:585:1: error: expected identifier or '(' before '+' token 585 | +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) | ^ 261 | static void audit_log_lsm(struct audit_context *context) | ^~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/audit_log_lsm +261 include/linux/audit.h 216 217 #else /* CONFIG_AUDIT */ 218 static inline __printf(4, 5) 219 void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type, 220 const char *fmt, ...) 221 { } 222 static inline struct audit_buffer *audit_log_start(struct audit_context *ctx, 223 gfp_t gfp_mask, int type) 224 { 225 return NULL; 226 } 227 static inline __printf(2, 3) 228 void audit_log_format(struct audit_buffer *ab, const char *fmt, ...) 229 { } 230 static inline void audit_log_end(struct audit_buffer *ab) 231 { } 232 static inline void audit_log_end_local(struct audit_buffer *ab, 233 struct audit_context *context) 234 { } 235 static inline void audit_log_n_hex(struct audit_buffer *ab, 236 const unsigned char *buf, size_t len) 237 { } 238 static inline void audit_log_n_string(struct audit_buffer *ab, 239 const char *buf, size_t n) 240 { } 241 static inline void audit_log_n_untrustedstring(struct audit_buffer *ab, 242 const char *string, size_t n) 243 { } 244 static inline void audit_log_untrustedstring(struct audit_buffer *ab, 245 const char *string) 246 { } 247 static inline void audit_log_d_path(struct audit_buffer *ab, 248 const char *prefix, 249 const struct path *path) 250 { } 251 static inline void audit_log_key(struct audit_buffer *ab, char *key) 252 { } 253 static inline void audit_log_path_denied(int type, const char *operation) 254 { } 255 static inline int audit_log_task_context(struct audit_buffer *ab) 256 { 257 return 0; 258 } 259 static inline void audit_log_task_info(struct audit_buffer *ab) 260 { } 262 { } 263 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org