CC: [email protected] BCC: [email protected] CC: [email protected] TO: Cong Wang <[email protected]>
tree: https://github.com/congwang/linux.git sch_bpf head: d7144f4291a2882e698a6d9d83f7e614d97be9c8 commit: d7144f4291a2882e698a6d9d83f7e614d97be9c8 [4/4] net_sched: introduce helper bpf_skb_tc_classify() :::::: branch date: 21 hours ago :::::: commit date: 21 hours ago config: microblaze-randconfig-m031-20220524 (https://download.01.org/0day-ci/archive/20220527/[email protected]/config) compiler: microblaze-linux-gcc (GCC) 11.3.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> New smatch warnings: net/sched/sch_api.c:374 ____bpf_skb_tc_classify() error: uninitialized symbol 'tp'. Old smatch warnings: arch/microblaze/include/asm/thread_info.h:85 current_thread_info() error: uninitialized symbol 'sp'. vim +/tp +374 net/sched/sch_api.c 3a7d0d07a38671 Vlad Buslov 2018-09-24 334 d7144f4291a288 Cong Wang 2022-05-21 335 BPF_CALL_3(bpf_skb_tc_classify, struct sk_buff *, skb, int, ifindex, u32, handle) d7144f4291a288 Cong Wang 2022-05-21 336 { d7144f4291a288 Cong Wang 2022-05-21 337 struct net *net = dev_net(skb->dev); d7144f4291a288 Cong Wang 2022-05-21 338 const struct Qdisc_class_ops *cops; d7144f4291a288 Cong Wang 2022-05-21 339 struct tcf_result res = {}; d7144f4291a288 Cong Wang 2022-05-21 340 struct tcf_block *block; d7144f4291a288 Cong Wang 2022-05-21 341 struct tcf_chain *chain; d7144f4291a288 Cong Wang 2022-05-21 342 struct net_device *dev; d7144f4291a288 Cong Wang 2022-05-21 343 unsigned long cl = 0; d7144f4291a288 Cong Wang 2022-05-21 344 struct Qdisc *q; d7144f4291a288 Cong Wang 2022-05-21 345 int result; d7144f4291a288 Cong Wang 2022-05-21 346 d7144f4291a288 Cong Wang 2022-05-21 347 rcu_read_lock(); d7144f4291a288 Cong Wang 2022-05-21 348 dev = dev_get_by_index_rcu(net, ifindex); d7144f4291a288 Cong Wang 2022-05-21 349 if (!dev) d7144f4291a288 Cong Wang 2022-05-21 350 goto out; d7144f4291a288 Cong Wang 2022-05-21 351 q = qdisc_lookup_rcu(dev, handle); d7144f4291a288 Cong Wang 2022-05-21 352 if (!q) d7144f4291a288 Cong Wang 2022-05-21 353 goto out; d7144f4291a288 Cong Wang 2022-05-21 354 d7144f4291a288 Cong Wang 2022-05-21 355 cops = q->ops->cl_ops; d7144f4291a288 Cong Wang 2022-05-21 356 if (!cops) d7144f4291a288 Cong Wang 2022-05-21 357 goto out; d7144f4291a288 Cong Wang 2022-05-21 358 if (!cops->tcf_block) d7144f4291a288 Cong Wang 2022-05-21 359 goto out; d7144f4291a288 Cong Wang 2022-05-21 360 if (TC_H_MIN(handle)) { d7144f4291a288 Cong Wang 2022-05-21 361 cl = cops->find(q, handle); d7144f4291a288 Cong Wang 2022-05-21 362 if (cl == 0) d7144f4291a288 Cong Wang 2022-05-21 363 goto out; d7144f4291a288 Cong Wang 2022-05-21 364 } d7144f4291a288 Cong Wang 2022-05-21 365 block = cops->tcf_block(q, cl, NULL); d7144f4291a288 Cong Wang 2022-05-21 366 if (!block) d7144f4291a288 Cong Wang 2022-05-21 367 goto out; d7144f4291a288 Cong Wang 2022-05-21 368 d7144f4291a288 Cong Wang 2022-05-21 369 for (chain = tcf_get_next_chain(block, NULL); d7144f4291a288 Cong Wang 2022-05-21 370 chain; d7144f4291a288 Cong Wang 2022-05-21 371 chain = tcf_get_next_chain(block, chain)) { d7144f4291a288 Cong Wang 2022-05-21 372 struct tcf_proto *tp; d7144f4291a288 Cong Wang 2022-05-21 373 d7144f4291a288 Cong Wang 2022-05-21 @374 result = tcf_classify(skb, NULL, tp, &res, false); d7144f4291a288 Cong Wang 2022-05-21 375 if (result >= 0) { d7144f4291a288 Cong Wang 2022-05-21 376 #ifdef CONFIG_NET_CLS_ACT d7144f4291a288 Cong Wang 2022-05-21 377 switch (result) { d7144f4291a288 Cong Wang 2022-05-21 378 case TC_ACT_QUEUED: d7144f4291a288 Cong Wang 2022-05-21 379 case TC_ACT_STOLEN: d7144f4291a288 Cong Wang 2022-05-21 380 case TC_ACT_TRAP: d7144f4291a288 Cong Wang 2022-05-21 381 fallthrough; d7144f4291a288 Cong Wang 2022-05-21 382 case TC_ACT_SHOT: d7144f4291a288 Cong Wang 2022-05-21 383 rcu_read_unlock(); d7144f4291a288 Cong Wang 2022-05-21 384 return 0; d7144f4291a288 Cong Wang 2022-05-21 385 } d7144f4291a288 Cong Wang 2022-05-21 386 #endif d7144f4291a288 Cong Wang 2022-05-21 387 } d7144f4291a288 Cong Wang 2022-05-21 388 } d7144f4291a288 Cong Wang 2022-05-21 389 out: d7144f4291a288 Cong Wang 2022-05-21 390 rcu_read_unlock(); d7144f4291a288 Cong Wang 2022-05-21 391 return res.class; d7144f4291a288 Cong Wang 2022-05-21 392 } d7144f4291a288 Cong Wang 2022-05-21 393 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
