Hi Shai, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on ipvs/master] [also build test WARNING on hch-configfs/for-next linus/master v5.12 next-20210429] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Shai-Malin/NVMeTCP-Offload-ULP-a... base: https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master config: alpha-randconfig-r014-20210429 (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 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://github.com/0day-ci/linux/commit/08328760bdbc2f5a78d7a4cf9bdc058d5... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shai-Malin/NVMeTCP-Offload-ULP-and-QEDN-Device-Driver/20210430-032713 git checkout 08328760bdbc2f5a78d7a4cf9bdc058d5120abb4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/nvme/host/tcp-offload.c:81:5: warning: no previous prototype for 'nvme_tcp_ofld_report_queue_err' [-Wmissing-prototypes] 81 | int nvme_tcp_ofld_report_queue_err(struct nvme_tcp_ofld_queue *queue) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/nvme/host/tcp-offload.c:99:6: warning: no previous prototype for 'nvme_tcp_ofld_req_done' [-Wmissing-prototypes] 99 | void nvme_tcp_ofld_req_done(struct nvme_tcp_ofld_req *req, | ^~~~~~~~~~~~~~~~~~~~~~ 107 | nvme_tcp_ofld_lookup_dev(struct nvme_tcp_ofld_ctrl *ctrl) | ^~~~~~~~~~~~~~~~~~~~~~~~ vim +/nvme_tcp_ofld_lookup_dev +107 drivers/nvme/host/tcp-offload.c 105 106 struct nvme_tcp_ofld_dev * 108 { 109 struct nvme_tcp_ofld_dev *dev; 110 111 down_read(&nvme_tcp_ofld_devices_rwsem); 112 list_for_each_entry(dev, &nvme_tcp_ofld_devices, entry) { 113 if (dev->ops->claim_dev(dev, &ctrl->conn_params)) { 114 /* Increase driver refcnt */ 115 if (!try_module_get(dev->ops->module)) { 116 pr_err("try_module_get failed\n"); 117 dev = NULL; 118 } 119 120 goto out; 121 } 122 } 123 124 dev = NULL; 125 out: 126 up_read(&nvme_tcp_ofld_devices_rwsem); 127 128 return dev; 129 } 130 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org