Re: [RFC PATCH v1 3/4] vfio: Try to enable IOPF for VFIO devices

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

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Hi Shenming,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on vfio/next]
[also build test ERROR on v5.11-rc5 next-20210125]
[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/Shenming-Lu/vfio-type1-Add-a-bitmap-to-track-IOPF-mapped-pages/20210126-141137
base:   https://github.com/awilliam/linux-vfio.git next
config: x86_64-rhel-8.3 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/275e8cc280f586d526fb8bf83f6b1575e52256a1
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Shenming-Lu/vfio-type1-Add-a-bitmap-to-track-IOPF-mapped-pages/20210126-141137
        git checkout 275e8cc280f586d526fb8bf83f6b1575e52256a1
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/vfio/vfio.c: In function 'vfio_device_enable_iopf':
>> drivers/vfio/vfio.c:541:34: error: 'IOMMU_DEV_FEAT_IOPF' undeclared (first use in this function); did you mean 'IOMMU_DEV_FEAT_SVA'?
     541 |  if (!iommu_dev_has_feature(dev, IOMMU_DEV_FEAT_IOPF))
         |                                  ^~~~~~~~~~~~~~~~~~~
         |                                  IOMMU_DEV_FEAT_SVA
   drivers/vfio/vfio.c:541:34: note: each undeclared identifier is reported only once for each function it appears in


vim +541 drivers/vfio/vfio.c

   532	
   533	/**
   534	 * Device objects - create, release, get, put, search
   535	 */
   536	
   537	static void vfio_device_enable_iopf(struct vfio_device *device)
   538	{
   539		struct device *dev = device->dev;
   540	
 > 541		if (!iommu_dev_has_feature(dev, IOMMU_DEV_FEAT_IOPF))
   542			return;
   543	
   544		if (WARN_ON(iommu_register_device_fault_handler(dev,
   545						vfio_iommu_dev_fault_handler, dev)))
   546			return;
   547	
   548		device->iopf_enabled = true;
   549	}
   550	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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