Hi Jean-Philippe,

I love your patch! Yet something to improve:

[auto build test ERROR on pm/linux-next]
[also build test ERROR on iommu/next arm64/for-next/core linus/master v5.13-rc4 
next-20210602]
[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/Jean-Philippe-Brucker/Add-support-for-ACPI-VIOT/20210602-235849
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git 
linux-next
config: x86_64-randconfig-a012-20210602 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
d41cb6bb2607fa5c7a9df2b3dab361353657d225)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # 
https://github.com/0day-ci/linux/commit/937da71a81108243877fb1f0f568e56a08a62c50
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Jean-Philippe-Brucker/Add-support-for-ACPI-VIOT/20210602-235849
        git checkout 937da71a81108243877fb1f0f568e56a08a62c50
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All errors (new ones prefixed by >>):

>> drivers/acpi/scan.c:1540:26: error: no member named 'ops' in 'struct 
>> iommu_fwspec'
           return fwspec ? fwspec->ops : NULL;
                           ~~~~~~  ^
>> drivers/acpi/scan.c:1564:9: error: implicit declaration of function 
>> 'iommu_probe_device' [-Werror,-Wimplicit-function-declaration]
                   err = iommu_probe_device(dev);
                         ^
   2 errors generated.


vim +1540 drivers/acpi/scan.c

  1535  
  1536  static inline const struct iommu_ops *acpi_iommu_fwspec_ops(struct 
device *dev)
  1537  {
  1538          struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
  1539  
> 1540          return fwspec ? fwspec->ops : NULL;
  1541  }
  1542  
  1543  static const struct iommu_ops *acpi_iommu_configure_id(struct device 
*dev,
  1544                                                         const u32 *id_in)
  1545  {
  1546          int err;
  1547          const struct iommu_ops *ops;
  1548  
  1549          /*
  1550           * If we already translated the fwspec there is nothing left to 
do,
  1551           * return the iommu_ops.
  1552           */
  1553          ops = acpi_iommu_fwspec_ops(dev);
  1554          if (ops)
  1555                  return ops;
  1556  
  1557          err = iort_iommu_configure_id(dev, id_in);
  1558  
  1559          /*
  1560           * If we have reason to believe the IOMMU driver missed the 
initial
  1561           * add_device callback for dev, replay it to get things in 
order.
  1562           */
  1563          if (!err && dev->bus && !device_iommu_mapped(dev))
> 1564                  err = iommu_probe_device(dev);
  1565  
  1566          /* Ignore all other errors apart from EPROBE_DEFER */
  1567          if (err == -EPROBE_DEFER) {
  1568                  return ERR_PTR(err);
  1569          } else if (err) {
  1570                  dev_dbg(dev, "Adding to IOMMU failed: %d\n", err);
  1571                  return NULL;
  1572          }
  1573          return acpi_iommu_fwspec_ops(dev);
  1574  }
  1575  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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