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: ia64-allmodconfig (attached as .config) compiler: ia64-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/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=ia64 SHELL=/bin/bash drivers/scsi/hisi_sas/ 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/hisi_sas/hisi_sas_v3_hw.c: In function 'hisi_sas_map_queues': 3137 | scsi_pci_get_queue_affinity, false, true); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_v3_hw.c:3137:10: note: each undeclared identifier is reported only once for each function it appears in drivers/scsi/hisi_sas/hisi_sas_v3_hw.c:3138:1: error: control reaches end of non-void function [-Werror=return-type] 3138 | } | ^ cc1: some warnings being treated as errors vim +/scsi_pci_get_queue_affinity +3137 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c 3129 3130 static int hisi_sas_map_queues(struct Scsi_Host *shost) 3131 { 3132 struct hisi_hba *hisi_hba = shost_priv(shost); 3133 struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT]; 3134 3135 return blk_mq_dev_map_queues(qmap, hisi_hba->pci_dev, 3136 BASE_VECTORS_V3_HW, 3138 } 3139 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org