Re: [PATCH] usbip: set the dma mask to 64bit default for vhci-driver

[kernel test robot <lkp@intel.com>]

Hi Zongmin,

kernel test robot noticed the following build errors:

[auto build test ERROR on usb/usb-testing]
[also build test ERROR on usb/usb-next usb/usb-linus linus/master v6.15-rc3 next-20250422]
[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/Zongmin-Zhou/usbip-set-the-dma-mask-to-64bit-default-for-vhci-driver/20250422-143646
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link:    https://lore.kernel.org/r/20250422063409.607859-1-min_halo%40163.com
patch subject: [PATCH] usbip: set the dma mask to 64bit default for vhci-driver
config: arm-randconfig-004-20250423 (https://download.01.org/0day-ci/archive/20250423/202504230805.MkmxQyas-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250423/202504230805.MkmxQyas-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504230805.MkmxQyas-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/usb/usbip/vhci_hcd.c:1349:2: error: call to undeclared function 'dma_set_mask'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    1349 |         dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
         |         ^
   drivers/usb/usbip/vhci_hcd.c:1349:2: note: did you mean 'xa_set_mark'?
   include/linux/xarray.h:361:6: note: 'xa_set_mark' declared here
     361 | void xa_set_mark(struct xarray *, unsigned long index, xa_mark_t);
         |      ^
>> drivers/usb/usbip/vhci_hcd.c:1349:27: error: call to undeclared function 'DMA_BIT_MASK'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    1349 |         dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
         |                                  ^
   2 errors generated.


vim +/dma_set_mask +1349 drivers/usb/usbip/vhci_hcd.c

  1338	
  1339	static int vhci_hcd_probe(struct platform_device *pdev)
  1340	{
  1341		struct vhci             *vhci = *((void **)dev_get_platdata(&pdev->dev));
  1342		struct usb_hcd		*hcd_hs;
  1343		struct usb_hcd		*hcd_ss;
  1344		int			ret;
  1345	
  1346		usbip_dbg_vhci_hc("name %s id %d\n", pdev->name, pdev->id);
  1347	
  1348		/* Set the dma mask to support 64bit for vhci-hcd driver. */
> 1349		dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
  1350	
  1351		/*
  1352		 * Allocate and initialize hcd.
  1353		 * Our private data is also allocated automatically.
  1354		 */
  1355		hcd_hs = usb_create_hcd(&vhci_hc_driver, &pdev->dev, dev_name(&pdev->dev));
  1356		if (!hcd_hs) {
  1357			pr_err("create primary hcd failed\n");
  1358			return -ENOMEM;
  1359		}
  1360		hcd_hs->has_tt = 1;
  1361	
  1362		/*
  1363		 * Finish generic HCD structure initialization and register.
  1364		 * Call the driver's reset() and start() routines.
  1365		 */
  1366		ret = usb_add_hcd(hcd_hs, 0, 0);
  1367		if (ret != 0) {
  1368			pr_err("usb_add_hcd hs failed %d\n", ret);
  1369			goto put_usb2_hcd;
  1370		}
  1371	
  1372		hcd_ss = usb_create_shared_hcd(&vhci_hc_driver, &pdev->dev,
  1373					       dev_name(&pdev->dev), hcd_hs);
  1374		if (!hcd_ss) {
  1375			ret = -ENOMEM;
  1376			pr_err("create shared hcd failed\n");
  1377			goto remove_usb2_hcd;
  1378		}
  1379	
  1380		ret = usb_add_hcd(hcd_ss, 0, 0);
  1381		if (ret) {
  1382			pr_err("usb_add_hcd ss failed %d\n", ret);
  1383			goto put_usb3_hcd;
  1384		}
  1385	
  1386		usbip_dbg_vhci_hc("bye\n");
  1387		return 0;
  1388	
  1389	put_usb3_hcd:
  1390		usb_put_hcd(hcd_ss);
  1391	remove_usb2_hcd:
  1392		usb_remove_hcd(hcd_hs);
  1393	put_usb2_hcd:
  1394		usb_put_hcd(hcd_hs);
  1395		vhci->vhci_hcd_hs = NULL;
  1396		vhci->vhci_hcd_ss = NULL;
  1397		return ret;
  1398	}
  1399	

-- 
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https://github.com/intel/lkp-tests/wiki