Re: [PATCH v2 1/2] vfio/type1: Simplify bus_type determination

[kernel test robot]

Hi Robin,

I love your patch! Yet something to improve:

[auto build test ERROR on v5.19-rc3]
[also build test ERROR on linus/master next-20220622]
[cannot apply to awilliam-vfio/next]
[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/intel-lab-lkp/linux/commits/Robin-Murphy/vfio-type1-Simplify-bus_type-determination/20220622-200503
base:    a111daf0c53ae91e71fd2bfe7497862d14132e3e
config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20220623/202206231208.PGASmlUW-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/7a6e1ddc765bde40f879995137a2ff20cb0eda47
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Robin-Murphy/vfio-type1-Simplify-bus_type-determination/20220622-200503
        git checkout 7a6e1ddc765bde40f879995137a2ff20cb0eda47
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "vfio_device_get_from_iommu" [drivers/vfio/vfio_iommu_type1.ko] undefined!
>> ERROR: modpost: "vfio_device_put" [drivers/vfio/vfio_iommu_type1.ko] undefined!

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