Hi Joerg,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.10-rc6]
[cannot apply to iommu/next next-20170203]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]

url:    
https://github.com/0day-ci/linux/commits/Joerg-Roedel/Let-IOMMU-core-know-about-individual-IOMMUs/20170203-232949
config: x86_64-randconfig-h0-02040037 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   In file included from drivers/iommu/dmar.c:34:0:
   include/linux/intel-iommu.h:443:22: error: field 'iommu' has incomplete type
     struct iommu_device iommu;  /* IOMMU core code handle */
                         ^
   drivers/iommu/dmar.c: In function 'alloc_iommu':
>> drivers/iommu/dmar.c:1083:3: error: implicit declaration of function 
>> 'iommu_device_sysfs_add' [-Werror=implicit-function-declaration]
      err = iommu_device_sysfs_add(&iommu->iommu, NULL,
      ^
   drivers/iommu/dmar.c:1091:3: error: implicit declaration of function 
'iommu_device_register' [-Werror=implicit-function-declaration]
      err = iommu_device_register(&iommu->iommu);
      ^
   drivers/iommu/dmar.c: In function 'free_iommu':
>> drivers/iommu/dmar.c:1111:2: error: implicit declaration of function 
>> 'iommu_device_sysfs_remove' [-Werror=implicit-function-declaration]
     iommu_device_sysfs_remove(&iommu->iommu);
     ^
   drivers/iommu/dmar.c:1112:2: error: implicit declaration of function 
'iommu_device_unregister' [-Werror=implicit-function-declaration]
     iommu_device_unregister(&iommu->iommu);
     ^
   cc1: some warnings being treated as errors

vim +/iommu_device_sysfs_add +1083 drivers/iommu/dmar.c

  1077          if (sts & DMA_GSTS_QIES)
  1078                  iommu->gcmd |= DMA_GCMD_QIE;
  1079  
  1080          raw_spin_lock_init(&iommu->register_lock);
  1081  
  1082          if (intel_iommu_enabled) {
> 1083                  err = iommu_device_sysfs_add(&iommu->iommu, NULL,
  1084                                               intel_iommu_groups,
  1085                                               "%s", iommu->name);
  1086                  if (err)
  1087                          goto err_unmap;
  1088  
  1089                  iommu->iommu.ops = &intel_iommu_ops;
  1090  
  1091                  err = iommu_device_register(&iommu->iommu);
  1092                  if (err)
  1093                          goto err_unmap;
  1094          }
  1095  
  1096          drhd->iommu = iommu;
  1097  
  1098          return 0;
  1099  
  1100  err_unmap:
  1101          unmap_iommu(iommu);
  1102  error_free_seq_id:
  1103          dmar_free_seq_id(iommu);
  1104  error:
  1105          kfree(iommu);
  1106          return err;
  1107  }
  1108  
  1109  static void free_iommu(struct intel_iommu *iommu)
  1110  {
> 1111          iommu_device_sysfs_remove(&iommu->iommu);
  1112          iommu_device_unregister(&iommu->iommu);
  1113  
  1114          if (iommu->irq) {

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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