tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git char-misc-next head: 0dc3ad3f859d3a65b335c861ec342d31d91e8bc8 commit: 0dc3ad3f859d3a65b335c861ec342d31d91e8bc8 [87/87] Revert "bus: mhi: Add inbound buffers allocation flag" config: hexagon-randconfig-r041-20210827 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4e1a164d7bd53653f79decc121afe784d2fde0a7) 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/gregkh/char-misc.git/commit/?id=0dc3ad3f859d3a65b335c861ec342d31d91e8bc8 git remote add char-misc https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git git fetch --no-tags char-misc char-misc-next git checkout 0dc3ad3f859d3a65b335c861ec342d31d91e8bc8 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=hexagon SHELL=/bin/bash net/qrtr/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> net/qrtr/mhi.c:105:41: error: use of undeclared identifier 'MHI_CH_INBOUND_ALLOC_BUFS' rc = mhi_prepare_for_transfer(mhi_dev, MHI_CH_INBOUND_ALLOC_BUFS); ^ 1 error generated. vim +/MHI_CH_INBOUND_ALLOC_BUFS +105 net/qrtr/mhi.c 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 79 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 80 static int qcom_mhi_qrtr_probe(struct mhi_device *mhi_dev, 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 81 const struct mhi_device_id *id) 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 82 { 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 83 struct qrtr_mhi_dev *qdev; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 84 int rc; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 85 a2e2cc0dbb1121 Loic Poulain 2020-09-28 86 /* start channels */ 0dc3ad3f859d3a Greg Kroah-Hartman 2021-08-27 87 rc = mhi_prepare_for_transfer(mhi_dev); a2e2cc0dbb1121 Loic Poulain 2020-09-28 88 if (rc) a2e2cc0dbb1121 Loic Poulain 2020-09-28 89 return rc; a2e2cc0dbb1121 Loic Poulain 2020-09-28 90 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 91 qdev = devm_kzalloc(&mhi_dev->dev, sizeof(*qdev), GFP_KERNEL); 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 92 if (!qdev) 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 93 return -ENOMEM; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 94 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 95 qdev->mhi_dev = mhi_dev; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 96 qdev->dev = &mhi_dev->dev; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 97 qdev->ep.xmit = qcom_mhi_qrtr_send; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 98 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 99 dev_set_drvdata(&mhi_dev->dev, qdev); 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 100 rc = qrtr_endpoint_register(&qdev->ep, QRTR_EP_NID_AUTO); 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 101 if (rc) 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 102 return rc; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 103 ce78ffa3ef1681 David S. Miller 2021-08-03 104 /* start channels */ ce78ffa3ef1681 David S. Miller 2021-08-03 @105 rc = mhi_prepare_for_transfer(mhi_dev, MHI_CH_INBOUND_ALLOC_BUFS); ce78ffa3ef1681 David S. Miller 2021-08-03 106 if (rc) { ce78ffa3ef1681 David S. Miller 2021-08-03 107 qrtr_endpoint_unregister(&qdev->ep); ce78ffa3ef1681 David S. Miller 2021-08-03 108 dev_set_drvdata(&mhi_dev->dev, NULL); ce78ffa3ef1681 David S. Miller 2021-08-03 109 return rc; ce78ffa3ef1681 David S. Miller 2021-08-03 110 } ce78ffa3ef1681 David S. Miller 2021-08-03 111 ce78ffa3ef1681 David S. Miller 2021-08-03 112 complete_all(&qdev->ready); 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 113 dev_dbg(qdev->dev, "Qualcomm MHI QRTR driver probed\n"); 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 114 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 115 return 0; 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 116 } 6e728f321393b1 Manivannan Sadhasivam 2020-05-07 117 :::::: The code at line 105 was first introduced by commit :::::: ce78ffa3ef1681065ba451cfd545da6126f5ca88 net: really fix the build... :::::: TO: David S. Miller :::::: CC: David S. Miller --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org