tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 01830e6c042e8eb6eb202e05d7df8057135b4c26 commit: b9aaec8f0be518096d1377082e0abe6a85e86ff3 [12053/13260] fib: use indirect call wrappers in the most common fib_rules_ops config: i386-randconfig-a006-20200731 (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce (this is a W=1 build): git checkout b9aaec8f0be518096d1377082e0abe6a85e86ff3 # save the attached .config to linux build tree make W=1 ARCH=i386 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 >>): ld: net/core/fib_rules.o: in function `fib_rule_match': net/core/fib_rules.c:271: undefined reference to `fib6_rule_match' ld: net/core/fib_rules.c:271: undefined reference to `fib6_rule_match' ld: net/core/fib_rules.c:271: undefined reference to `fib6_rule_match' ld: net/core/fib_rules.o: in function `fib_rules_lookup': net/core/fib_rules.c:305: undefined reference to `fib6_rule_action' ld: net/core/fib_rules.c:305: undefined reference to `fib6_rule_action' ld: net/core/fib_rules.c:305: undefined reference to `fib6_rule_action' ld: net/core/fib_rules.c:310: undefined reference to `fib6_rule_suppress' ld: net/core/fib_rules.c:310: undefined reference to `fib6_rule_suppress' ld: net/core/fib_rules.c:310: undefined reference to `fib6_rule_suppress' ld: net/core/fib_rules.o: in function `fib_rule_match': ld: net/core/fib_rules.o: in function `fib_rules_lookup': vim +271 net/core/fib_rules.c 245 246 static int fib_rule_match(struct fib_rule *rule, struct fib_rules_ops *ops, 247 struct flowi *fl, int flags, 248 struct fib_lookup_arg *arg) 249 { 250 int ret = 0; 251 252 if (rule->iifindex && (rule->iifindex != fl->flowi_iif)) 253 goto out; 254 255 if (rule->oifindex && (rule->oifindex != fl->flowi_oif)) 256 goto out; 257 258 if ((rule->mark ^ fl->flowi_mark) & rule->mark_mask) 259 goto out; 260 261 if (rule->tun_id && (rule->tun_id != fl->flowi_tun_key.tun_id)) 262 goto out; 263 264 if (rule->l3mdev && !l3mdev_fib_rule_match(rule->fr_net, fl, arg)) 265 goto out; 266 267 if (uid_lt(fl->flowi_uid, rule->uid_range.start) || 268 uid_gt(fl->flowi_uid, rule->uid_range.end)) 269 goto out; 270 272 fib6_rule_match, 273 fib4_rule_match, 274 rule, fl, flags); 275 out: 276 return (rule->flags & FIB_RULE_INVERT) ? !ret : ret; 277 } 278 279 int fib_rules_lookup(struct fib_rules_ops *ops, struct flowi *fl, 280 int flags, struct fib_lookup_arg *arg) 281 { 282 struct fib_rule *rule; 283 int err; 284 285 rcu_read_lock(); 286 287 list_for_each_entry_rcu(rule, &ops->rules_list, list) { 288 jumped: 289 if (!fib_rule_match(rule, ops, fl, flags, arg)) 290 continue; 291 292 if (rule->action == FR_ACT_GOTO) { 293 struct fib_rule *target; 294 295 target = rcu_dereference(rule->ctarget); 296 if (target == NULL) { 297 continue; 298 } else { 299 rule = target; 300 goto jumped; 301 } 302 } else if (rule->action == FR_ACT_NOP) 303 continue; 304 else 306 fib6_rule_action, 307 fib4_rule_action, 308 rule, fl, flags, arg); 309 311 fib6_rule_suppress, 312 fib4_rule_suppress, 313 rule, arg)) 314 continue; 315 316 if (err != -EAGAIN) { 317 if ((arg->flags & FIB_LOOKUP_NOREF) || 318 likely(refcount_inc_not_zero(&rule->refcnt))) { 319 arg->rule = rule; 320 goto out; 321 } 322 break; 323 } 324 } 325 326 err = -ESRCH; 327 out: 328 rcu_read_unlock(); 329 330 return err; 331 } 332 EXPORT_SYMBOL_GPL(fib_rules_lookup); 333 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org