Hi Keith,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.1-rc8]
[cannot apply to next-20221205]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Keith-Busch/dmapool-enhancements/20221205-232116
patch link:    https://lore.kernel.org/r/20221205145937.54367-2-kbusch%40meta.com
patch subject: [PATCH 01/11] dmapool: add alloc/free performance test
config: powerpc-randconfig-c041-20221205
compiler: powerpc-linux-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/68ca0ec415bed31d06a536a0832c305b9d14b1b9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Keith-Busch/dmapool-enhancements/20221205-232116
        git checkout 68ca0ec415bed31d06a536a0832c305b9d14b1b9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   mm/dmapool_test.c: In function 'dmapool_checks':
>> mm/dmapool_test.c:111:17: error: 'struct device' has no member named 'dma_ops'
     111 |         test_dev.dma_ops = NULL;
         |                 ^


vim +111 mm/dmapool_test.c

    95	
    96	static int dmapool_checks(void)
    97	{
    98		int i, ret;
    99	
   100		ret = dev_set_name(&test_dev, "dmapool-test");
   101		if (ret)
   102			return ret;
   103	
   104		ret = device_register(&test_dev);
   105		if (ret) {
   106			printk("%s: register failed:%d\n", __func__, ret);
   107			goto put_device;
   108		}
   109	
   110		test_dev.release = dmapool_test_release;
 > 111		test_dev.dma_ops = NULL;
   112		test_dev.dma_mask = &dma_mask;
   113		ret = dma_set_mask_and_coherent(&test_dev, DMA_BIT_MASK(64));
   114		if (ret) {
   115			printk("%s: mask failed:%d\n", __func__, ret);
   116			goto del_device;
   117		}
   118	
   119		for (i = 0; i < ARRAY_SIZE(block_sizes); i++) {
   120			ret = dmapool_test_block(block_sizes[i]);
   121			if (ret)
   122				break;
   123		}
   124	
   125	del_device:
   126		device_del(&test_dev);
   127	put_device:
   128		put_device(&test_dev);
   129		return ret;
   130	}
   131	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp