Hi Dave,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vkoul-dmaengine/next]
[also build test WARNING on v5.14-rc1 next-20210714]
[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/Dave-Jiang/Fix-idxd-sub-drivers-setup/20210715-072229
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
config: x86_64-randconfig-a006-20210714 (attached as .config)
compiler: gcc-10 (Debian 10.2.1-6) 10.2.1 20210110
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/b3be8eaa8a16899b6c4084b14d5a2173b43299e5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Dave-Jiang/Fix-idxd-sub-drivers-setup/20210715-072229
        git checkout b3be8eaa8a16899b6c4084b14d5a2173b43299e5
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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/dma/idxd/init.c: In function 'idxd_alloc':
>> drivers/dma/idxd/init.c:498:47: warning: implicit conversion from 'enum idxd_type' to 'enum idxd_dev_type' [-Wenum-conversion]
     498 |  idxd_dev_set_type(&idxd->idxd_dev, idxd->data->type);
         |                                     ~~~~~~~~~~^~~~~~


vim +498 drivers/dma/idxd/init.c

   483	
   484	static struct idxd_device *idxd_alloc(struct pci_dev *pdev, struct idxd_driver_data *data)
   485	{
   486		struct device *dev = &pdev->dev;
   487		struct device *conf_dev;
   488		struct idxd_device *idxd;
   489		int rc;
   490	
   491		idxd = kzalloc_node(sizeof(*idxd), GFP_KERNEL, dev_to_node(dev));
   492		if (!idxd)
   493			return NULL;
   494	
   495		conf_dev = idxd_confdev(idxd);
   496		idxd->pdev = pdev;
   497		idxd->data = data;
 > 498		idxd_dev_set_type(&idxd->idxd_dev, idxd->data->type);
   499		idxd->id = ida_alloc(&idxd_ida, GFP_KERNEL);
   500		if (idxd->id < 0)
   501			return NULL;
   502	
   503		device_initialize(conf_dev);
   504		conf_dev->parent = dev;
   505		conf_dev->bus = &dsa_bus_type;
   506		conf_dev->type = idxd->data->dev_type;
   507		rc = dev_set_name(conf_dev, "%s%d", idxd->data->name_prefix, idxd->id);
   508		if (rc < 0) {
   509			put_device(conf_dev);
   510			return NULL;
   511		}
   512	
   513		spin_lock_init(&idxd->dev_lock);
   514		spin_lock_init(&idxd->cmd_lock);
   515	
   516		return idxd;
   517	}
   518	

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