tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b605fdc54c2b28c30ef06d9db99282d8a32ae4be commit: c1ff181ffabc292abcd1832a1c83aac2bc499e71 [655/2855] selftests/bpf: Extend kfunc selftests config: i386-randconfig-a014-20220124 (https://download.01.org/0day-ci/archive/20220129/202201291133.pGWHJVKN-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 33b45ee44b1f32ffdbc995e6fec806271b4b3ba4) 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=c1ff181ffabc292abcd1832a1c83aac2bc499e71 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout c1ff181ffabc292abcd1832a1c83aac2bc499e71 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash net/bpf/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): net/bpf/test_run.c:171:14: warning: no previous prototype for function 'bpf_fentry_test1' [-Wmissing-prototypes] int noinline bpf_fentry_test1(int a) ^ net/bpf/test_run.c:171:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test1(int a) ^ static net/bpf/test_run.c:176:14: warning: no previous prototype for function 'bpf_fentry_test2' [-Wmissing-prototypes] int noinline bpf_fentry_test2(int a, u64 b) ^ net/bpf/test_run.c:176:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test2(int a, u64 b) ^ static net/bpf/test_run.c:181:14: warning: no previous prototype for function 'bpf_fentry_test3' [-Wmissing-prototypes] int noinline bpf_fentry_test3(char a, int b, u64 c) ^ net/bpf/test_run.c:181:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test3(char a, int b, u64 c) ^ static net/bpf/test_run.c:186:14: warning: no previous prototype for function 'bpf_fentry_test4' [-Wmissing-prototypes] int noinline bpf_fentry_test4(void *a, char b, int c, u64 d) ^ net/bpf/test_run.c:186:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test4(void *a, char b, int c, u64 d) ^ static net/bpf/test_run.c:191:14: warning: no previous prototype for function 'bpf_fentry_test5' [-Wmissing-prototypes] int noinline bpf_fentry_test5(u64 a, void *b, short c, int d, u64 e) ^ net/bpf/test_run.c:191:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test5(u64 a, void *b, short c, int d, u64 e) ^ static net/bpf/test_run.c:196:14: warning: no previous prototype for function 'bpf_fentry_test6' [-Wmissing-prototypes] int noinline bpf_fentry_test6(u64 a, void *b, short c, int d, void *e, u64 f) ^ net/bpf/test_run.c:196:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test6(u64 a, void *b, short c, int d, void *e, u64 f) ^ static net/bpf/test_run.c:205:14: warning: no previous prototype for function 'bpf_fentry_test7' [-Wmissing-prototypes] int noinline bpf_fentry_test7(struct bpf_fentry_test_t *arg) ^ net/bpf/test_run.c:205:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test7(struct bpf_fentry_test_t *arg) ^ static net/bpf/test_run.c:210:14: warning: no previous prototype for function 'bpf_fentry_test8' [-Wmissing-prototypes] int noinline bpf_fentry_test8(struct bpf_fentry_test_t *arg) ^ net/bpf/test_run.c:210:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_fentry_test8(struct bpf_fentry_test_t *arg) ^ static net/bpf/test_run.c:215:14: warning: no previous prototype for function 'bpf_modify_return_test' [-Wmissing-prototypes] int noinline bpf_modify_return_test(int a, int *b) ^ net/bpf/test_run.c:215:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_modify_return_test(int a, int *b) ^ static net/bpf/test_run.c:221:14: warning: no previous prototype for function 'bpf_kfunc_call_test1' [-Wmissing-prototypes] u64 noinline bpf_kfunc_call_test1(struct sock *sk, u32 a, u64 b, u32 c, u64 d) ^ net/bpf/test_run.c:221:1: note: declare 'static' if the function is not intended to be used outside of this translation unit u64 noinline bpf_kfunc_call_test1(struct sock *sk, u32 a, u64 b, u32 c, u64 d) ^ static net/bpf/test_run.c:226:14: warning: no previous prototype for function 'bpf_kfunc_call_test2' [-Wmissing-prototypes] int noinline bpf_kfunc_call_test2(struct sock *sk, u32 a, u32 b) ^ net/bpf/test_run.c:226:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int noinline bpf_kfunc_call_test2(struct sock *sk, u32 a, u32 b) ^ static net/bpf/test_run.c:231:24: warning: no previous prototype for function 'bpf_kfunc_call_test3' [-Wmissing-prototypes] struct sock * noinline bpf_kfunc_call_test3(struct sock *sk) ^ net/bpf/test_run.c:231:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct sock * noinline bpf_kfunc_call_test3(struct sock *sk) ^ static >> net/bpf/test_run.c:249:1: warning: no previous prototype for function 'bpf_kfunc_call_test_acquire' [-Wmissing-prototypes] bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr) ^ net/bpf/test_run.c:248:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline struct prog_test_ref_kfunc * ^ static >> net/bpf/test_run.c:257:15: warning: no previous prototype for function 'bpf_kfunc_call_test_release' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) ^ net/bpf/test_run.c:257:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) ^ static >> net/bpf/test_run.c:299:15: warning: no previous prototype for function 'bpf_kfunc_call_test_pass_ctx' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb) ^ net/bpf/test_run.c:299:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb) ^ static >> net/bpf/test_run.c:303:15: warning: no previous prototype for function 'bpf_kfunc_call_test_pass1' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_pass1(struct prog_test_pass1 *p) ^ net/bpf/test_run.c:303:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_pass1(struct prog_test_pass1 *p) ^ static >> net/bpf/test_run.c:307:15: warning: no previous prototype for function 'bpf_kfunc_call_test_pass2' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p) ^ net/bpf/test_run.c:307:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p) ^ static >> net/bpf/test_run.c:311:15: warning: no previous prototype for function 'bpf_kfunc_call_test_fail1' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p) ^ net/bpf/test_run.c:311:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p) ^ static >> net/bpf/test_run.c:315:15: warning: no previous prototype for function 'bpf_kfunc_call_test_fail2' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p) ^ net/bpf/test_run.c:315:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p) ^ static >> net/bpf/test_run.c:319:15: warning: no previous prototype for function 'bpf_kfunc_call_test_fail3' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p) ^ net/bpf/test_run.c:319:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p) ^ static >> net/bpf/test_run.c:323:15: warning: no previous prototype for function 'bpf_kfunc_call_test_mem_len_pass1' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_mem_len_pass1(void *mem, int mem__sz) ^ net/bpf/test_run.c:323:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_mem_len_pass1(void *mem, int mem__sz) ^ static >> net/bpf/test_run.c:327:15: warning: no previous prototype for function 'bpf_kfunc_call_test_mem_len_fail1' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len) ^ net/bpf/test_run.c:327:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len) ^ static >> net/bpf/test_run.c:331:15: warning: no previous prototype for function 'bpf_kfunc_call_test_mem_len_fail2' [-Wmissing-prototypes] noinline void bpf_kfunc_call_test_mem_len_fail2(u64 *mem, int len) ^ net/bpf/test_run.c:331:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline void bpf_kfunc_call_test_mem_len_fail2(u64 *mem, int len) ^ static 23 warnings generated. vim +/bpf_kfunc_call_test_acquire +249 net/bpf/test_run.c 247 248 noinline struct prog_test_ref_kfunc * > 249 bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr) 250 { 251 /* randomly return NULL */ 252 if (get_jiffies_64() % 2) 253 return NULL; 254 return &prog_test_struct; 255 } 256 > 257 noinline void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) 258 { 259 } 260 261 struct prog_test_pass1 { 262 int x0; 263 struct { 264 int x1; 265 struct { 266 int x2; 267 struct { 268 int x3; 269 }; 270 }; 271 }; 272 }; 273 274 struct prog_test_pass2 { 275 int len; 276 short arr1[4]; 277 struct { 278 char arr2[4]; 279 unsigned long arr3[8]; 280 } x; 281 }; 282 283 struct prog_test_fail1 { 284 void *p; 285 int x; 286 }; 287 288 struct prog_test_fail2 { 289 int x8; 290 struct prog_test_pass1 x; 291 }; 292 293 struct prog_test_fail3 { 294 int len; 295 char arr1[2]; 296 char arr2[0]; 297 }; 298 > 299 noinline void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb) 300 { 301 } 302 > 303 noinline void bpf_kfunc_call_test_pass1(struct prog_test_pass1 *p) 304 { 305 } 306 > 307 noinline void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p) 308 { 309 } 310 > 311 noinline void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p) 312 { 313 } 314 > 315 noinline void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p) 316 { 317 } 318 > 319 noinline void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p) 320 { 321 } 322 > 323 noinline void bpf_kfunc_call_test_mem_len_pass1(void *mem, int mem__sz) 324 { 325 } 326 > 327 noinline void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len) 328 { 329 } 330 > 331 noinline void bpf_kfunc_call_test_mem_len_fail2(u64 *mem, int len) 332 { 333 } 334 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
