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-queues-fix-blk_mq_alloc_request_hctx/20210709-161333
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/68d3a74335a27dab42ec5f7b6c384ea7033e6864
        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@intel.com>

All errors (new ones prefixed by >>):

   drivers/scsi/mpi3mr/mpi3mr_os.c: In function 'mpi3mr_map_queues':
>> drivers/scsi/mpi3mr/mpi3mr_os.c:2801:6: error: 'scsi_pci_get_queue_affinity' undeclared (first use in this function)
    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,
> 2801		    scsi_pci_get_queue_affinity, false, true);
  2802	}
  2803	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org