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-and-QEDN-Device-Driver/20210430-032713
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/08328760bdbc2f5a78d7a4cf9bdc058d5120abb4
        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@intel.com>

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,
         |      ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/nvme/host/tcp-offload.c:107:1: warning: no previous prototype for 'nvme_tcp_ofld_lookup_dev' [-Wmissing-prototypes]
     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 *
 > 107	nvme_tcp_ofld_lookup_dev(struct nvme_tcp_ofld_ctrl *ctrl)
   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(a)lists.01.org