From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============5671669749478931035==" MIME-Version: 1.0 From: kernel test robot Subject: [congwang:sch_bpf 4/4] net/sched/sch_api.c:374 ____bpf_skb_tc_classify() error: uninitialized symbol 'tp'. Date: Fri, 27 May 2022 21:12:24 +0800 Message-ID: <202205272139.ach2sccy-lkp@intel.com> List-Id: To: kbuild@lists.01.org --===============5671669749478931035== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable CC: kbuild-all(a)lists.01.org BCC: lkp(a)intel.com CC: linux-kernel(a)vger.kernel.org TO: Cong Wang 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-c= i/archive/20220527/202205272139.ach2sccy-lkp(a)intel.com/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 Reported-by: Dan Carpenter New smatch warnings: net/sched/sch_api.c:374 ____bpf_skb_tc_classify() error: uninitialized symb= ol 'tp'. Old smatch warnings: arch/microblaze/include/asm/thread_info.h:85 current_thread_info() error: u= ninitialized 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 =3D dev_net(sk= b->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 =3D {}; 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 =3D 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 =3D dev_get_by_index_rcu(n= et, 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 =3D qdisc_lookup_rcu(dev, ha= ndle); 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 =3D 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 =3D cops->find(q, handle); d7144f4291a288 Cong Wang 2022-05-21 362 if (cl =3D=3D 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 =3D cops->tcf_block(q, c= l, 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 =3D tcf_get_next_ch= ain(block, NULL); d7144f4291a288 Cong Wang 2022-05-21 370 chain; d7144f4291a288 Cong Wang 2022-05-21 371 chain =3D tcf_get_next_ch= ain(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 =3D tcf_classify(skb, = NULL, tp, &res, false); d7144f4291a288 Cong Wang 2022-05-21 375 if (result >=3D 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 --===============5671669749478931035==--