Hi Ming, Thank you for the patch! Yet something to improve: [auto build test ERROR on block/for-next] [also build test ERROR on next-20210709] [cannot apply to mkp-scsi/for-next scsi/for-next v5.13] [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/Ming-Lei/blk-mq-cleanup-map-queu... base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: arc-allyesconfig (attached as .config) compiler: arceb-elf-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/68d3a74335a27dab42ec5f7b6c384ea70... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ming-Lei/blk-mq-cleanup-map-queues-fix-blk_mq_alloc_request_hctx/20210709-161333 git checkout 68d3a74335a27dab42ec5f7b6c384ea7033e6864 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash drivers/scsi/mpi3mr/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/scsi/mpi3mr/mpi3mr_os.c: In function 'mpi3mr_map_queues': 2801 | scsi_pci_get_queue_affinity, false, true); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/mpi3mr/mpi3mr_os.c:2801:6: note: each undeclared identifier is reported only once for each function it appears in drivers/scsi/mpi3mr/mpi3mr_os.c:2802:1: error: control reaches end of non-void function [-Werror=return-type] 2802 | } | ^ cc1: some warnings being treated as errors vim +/scsi_pci_get_queue_affinity +2801 drivers/scsi/mpi3mr/mpi3mr_os.c 2785 2786 /** 2787 * mpi3mr_map_queues - Map queues callback handler 2788 * @shost: SCSI host reference 2789 * 2790 * Call the blk_mq_dev_map_queues with from which operational 2791 * queue the mapping has to be done 2792 * 2793 * Return: return of blk_mq_dev_map_queues 2794 */ 2795 static int mpi3mr_map_queues(struct Scsi_Host *shost) 2796 { 2797 struct mpi3mr_ioc *mrioc = shost_priv(shost); 2798 2799 return blk_mq_dev_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT], 2800 mrioc->pdev, mrioc->op_reply_q_offset, 2802 } 2803 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org