Hi Oliver, I love your patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Oliver-Hartkopp/net-remove-noblock-parameter-from-skb_recv_datagram/20220319-044459 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git e89600ebeeb14d18c0b062837a84196f72542830 config: arm-randconfig-r032-20220318 (https://download.01.org/0day-ci/archive/20220319/202203191134.UX94Q3Ck-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6e70e4056dff962ec634c5bd4f2f4105a0bef71) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/31180f21a45948092a6c4be3400fd87517ea4eb4 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Oliver-Hartkopp/net-remove-noblock-parameter-from-skb_recv_datagram/20220319-044459 git checkout 31180f21a45948092a6c4be3400fd87517ea4eb4 # 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=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from net/mctp/route.c:1405: >> net/mctp/test/route-test.c:585:43: error: too many arguments to function call, expected 3, have 4 skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc); ~~~~~~~~~~~~~~~~~ ^~~ include/linux/skbuff.h:3839:17: note: 'skb_recv_datagram' declared here struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned int flags, int *err); ^ 1 error generated. vim +585 net/mctp/test/route-test.c c5755214623dd7 Jeremy Kerr 2022-02-09 534 c5755214623dd7 Jeremy Kerr 2022-02-09 535 /* test packet rx in the presence of various key configurations */ c5755214623dd7 Jeremy Kerr 2022-02-09 536 static void mctp_test_route_input_sk_keys(struct kunit *test) c5755214623dd7 Jeremy Kerr 2022-02-09 537 { c5755214623dd7 Jeremy Kerr 2022-02-09 538 const struct mctp_route_input_sk_keys_test *params; c5755214623dd7 Jeremy Kerr 2022-02-09 539 struct mctp_test_route *rt; c5755214623dd7 Jeremy Kerr 2022-02-09 540 struct sk_buff *skb, *skb2; c5755214623dd7 Jeremy Kerr 2022-02-09 541 struct mctp_test_dev *dev; c5755214623dd7 Jeremy Kerr 2022-02-09 542 struct mctp_sk_key *key; c5755214623dd7 Jeremy Kerr 2022-02-09 543 struct netns_mctp *mns; c5755214623dd7 Jeremy Kerr 2022-02-09 544 struct mctp_sock *msk; c5755214623dd7 Jeremy Kerr 2022-02-09 545 struct socket *sock; c5755214623dd7 Jeremy Kerr 2022-02-09 546 unsigned long flags; c5755214623dd7 Jeremy Kerr 2022-02-09 547 int rc; c5755214623dd7 Jeremy Kerr 2022-02-09 548 u8 c; c5755214623dd7 Jeremy Kerr 2022-02-09 549 c5755214623dd7 Jeremy Kerr 2022-02-09 550 params = test->param_value; c5755214623dd7 Jeremy Kerr 2022-02-09 551 c5755214623dd7 Jeremy Kerr 2022-02-09 552 dev = mctp_test_create_dev(); c5755214623dd7 Jeremy Kerr 2022-02-09 553 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); c5755214623dd7 Jeremy Kerr 2022-02-09 554 c5755214623dd7 Jeremy Kerr 2022-02-09 555 rt = mctp_test_create_route(&init_net, dev->mdev, 8, 68); c5755214623dd7 Jeremy Kerr 2022-02-09 556 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt); c5755214623dd7 Jeremy Kerr 2022-02-09 557 c5755214623dd7 Jeremy Kerr 2022-02-09 558 rc = sock_create_kern(&init_net, AF_MCTP, SOCK_DGRAM, 0, &sock); c5755214623dd7 Jeremy Kerr 2022-02-09 559 KUNIT_ASSERT_EQ(test, rc, 0); c5755214623dd7 Jeremy Kerr 2022-02-09 560 c5755214623dd7 Jeremy Kerr 2022-02-09 561 msk = container_of(sock->sk, struct mctp_sock, sk); c5755214623dd7 Jeremy Kerr 2022-02-09 562 mns = &sock_net(sock->sk)->mctp; c5755214623dd7 Jeremy Kerr 2022-02-09 563 c5755214623dd7 Jeremy Kerr 2022-02-09 564 /* set the incoming tag according to test params */ c5755214623dd7 Jeremy Kerr 2022-02-09 565 key = mctp_key_alloc(msk, params->key_local_addr, params->key_peer_addr, c5755214623dd7 Jeremy Kerr 2022-02-09 566 params->key_tag, GFP_KERNEL); c5755214623dd7 Jeremy Kerr 2022-02-09 567 c5755214623dd7 Jeremy Kerr 2022-02-09 568 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, key); c5755214623dd7 Jeremy Kerr 2022-02-09 569 c5755214623dd7 Jeremy Kerr 2022-02-09 570 spin_lock_irqsave(&mns->keys_lock, flags); c5755214623dd7 Jeremy Kerr 2022-02-09 571 mctp_reserve_tag(&init_net, key, msk); c5755214623dd7 Jeremy Kerr 2022-02-09 572 spin_unlock_irqrestore(&mns->keys_lock, flags); c5755214623dd7 Jeremy Kerr 2022-02-09 573 c5755214623dd7 Jeremy Kerr 2022-02-09 574 /* create packet and route */ c5755214623dd7 Jeremy Kerr 2022-02-09 575 c = 0; c5755214623dd7 Jeremy Kerr 2022-02-09 576 skb = mctp_test_create_skb_data(¶ms->hdr, &c); c5755214623dd7 Jeremy Kerr 2022-02-09 577 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); c5755214623dd7 Jeremy Kerr 2022-02-09 578 c5755214623dd7 Jeremy Kerr 2022-02-09 579 skb->dev = dev->ndev; c5755214623dd7 Jeremy Kerr 2022-02-09 580 __mctp_cb(skb); c5755214623dd7 Jeremy Kerr 2022-02-09 581 c5755214623dd7 Jeremy Kerr 2022-02-09 582 rc = mctp_route_input(&rt->rt, skb); c5755214623dd7 Jeremy Kerr 2022-02-09 583 c5755214623dd7 Jeremy Kerr 2022-02-09 584 /* (potentially) receive message */ c5755214623dd7 Jeremy Kerr 2022-02-09 @585 skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc); c5755214623dd7 Jeremy Kerr 2022-02-09 586 c5755214623dd7 Jeremy Kerr 2022-02-09 587 if (params->deliver) c5755214623dd7 Jeremy Kerr 2022-02-09 588 KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2); c5755214623dd7 Jeremy Kerr 2022-02-09 589 else c5755214623dd7 Jeremy Kerr 2022-02-09 590 KUNIT_EXPECT_PTR_EQ(test, skb2, NULL); c5755214623dd7 Jeremy Kerr 2022-02-09 591 c5755214623dd7 Jeremy Kerr 2022-02-09 592 if (skb2) c5755214623dd7 Jeremy Kerr 2022-02-09 593 skb_free_datagram(sock->sk, skb2); c5755214623dd7 Jeremy Kerr 2022-02-09 594 c5755214623dd7 Jeremy Kerr 2022-02-09 595 mctp_key_unref(key); c5755214623dd7 Jeremy Kerr 2022-02-09 596 __mctp_route_test_fini(test, dev, rt, sock); c5755214623dd7 Jeremy Kerr 2022-02-09 597 } c5755214623dd7 Jeremy Kerr 2022-02-09 598 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx