Re: [PATCH v5 4/5] hisi_acc_vfio_pci: register debugfs for hisilicon migration driver

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

Hi Longfang,

kernel test robot noticed the following build errors:

[auto build test ERROR on awilliam-vfio/next]
[also build test ERROR on linus/master v6.9-rc5 next-20240424]
[cannot apply to awilliam-vfio/for-linus]
[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/Longfang-Liu/hisi_acc_vfio_pci-extract-public-functions-for-container_of/20240424-170806
base:   https://github.com/awilliam/linux-vfio.git next
patch link:    https://lore.kernel.org/r/20240424085721.12760-5-liulongfang%40huawei.com
patch subject: [PATCH v5 4/5] hisi_acc_vfio_pci: register debugfs for hisilicon migration driver
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20240425/202404250711.4mzD3Fe0-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 5ef5eb66fb428aaf61fb51b709f065c069c11242)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240425/202404250711.4mzD3Fe0-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/202404250711.4mzD3Fe0-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c:9:
   In file included from include/linux/hisi_acc_qm.h:10:
   In file included from include/linux/pci.h:38:
   In file included from include/linux/interrupt.h:21:
   In file included from arch/riscv/include/asm/sections.h:9:
   In file included from include/linux/mm.h:2208:
   include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     508 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     509 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     515 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     516 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     522 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     527 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     528 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     536 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     537 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c:1370:46: error: too few arguments provided to function-like macro invocation
    1370 |         dev_err("mailbox cmd channel state is OK!\n");
         |                                                     ^
   include/linux/dev_printk.h:143:9: note: macro 'dev_err' defined here
     143 | #define dev_err(dev, fmt, ...) \
         |         ^
>> drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c:1370:2: error: use of undeclared identifier 'dev_err'; did you mean '_dev_err'?
    1370 |         dev_err("mailbox cmd channel state is OK!\n");
         |         ^~~~~~~
         |         _dev_err
   include/linux/dev_printk.h:50:6: note: '_dev_err' declared here
      50 | void _dev_err(const struct device *dev, const char *fmt, ...);
         |      ^
>> drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c:1370:2: warning: expression result unused [-Wunused-value]
    1370 |         dev_err("mailbox cmd channel state is OK!\n");
         |         ^~~~~~~
   6 warnings and 2 errors generated.


vim +1370 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c

  1345	
  1346	static int hisi_acc_vf_debug_cmd(struct seq_file *seq, void *data)
  1347	{
  1348		struct device *vf_dev = seq->private;
  1349		struct vfio_pci_core_device *core_device = dev_get_drvdata(vf_dev);
  1350		struct vfio_device *vdev = &core_device->vdev;
  1351		struct hisi_acc_vf_core_device *hisi_acc_vdev = hisi_acc_get_vf_dev(vdev);
  1352		struct hisi_qm *vf_qm = &hisi_acc_vdev->vf_qm;
  1353		u64 value;
  1354		int ret;
  1355	
  1356		mutex_lock(&hisi_acc_vdev->enable_mutex);
  1357		ret = hisi_acc_vf_debug_check(seq, vdev);
  1358		if (ret) {
  1359			mutex_unlock(&hisi_acc_vdev->enable_mutex);
  1360			return ret;
  1361		}
  1362	
  1363		value = readl(vf_qm->io_base + QM_MB_CMD_SEND_BASE);
  1364		if (value == QM_MB_CMD_NOT_READY) {
  1365			mutex_unlock(&hisi_acc_vdev->enable_mutex);
  1366			dev_err(vf_dev, "mailbox cmd channel not ready!\n");
  1367			return -EINVAL;
  1368		}
  1369		mutex_unlock(&hisi_acc_vdev->enable_mutex);
> 1370		dev_err("mailbox cmd channel state is OK!\n");
  1371	
  1372		return 0;
  1373	}
  1374	

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