Re: [PATCH 1/2] iommu/vt-d: Fix crash when accessing VT-d sysfs entries

From: kbuild test robot
Date: Tue Feb 28 2017 - 20:23:13 EST


Hi Joerg,

[auto build test ERROR on iommu/next]
[also build test ERROR on v4.10 next-20170228]
[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/iommu-vt-d-Fix-crash-when-accessing-VT-d-sysfs-entries/20170301-074355
base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
config: x86_64-randconfig-s1-03010801 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

In file included from drivers/gpu/drm/i915/i915_drv.h:41,
from drivers/gpu/drm/i915/i915_drv.c:48:
include/linux/intel-iommu.h: In function 'dev_to_intel_iommu':
include/linux/intel-iommu.h:457: error: 'struct iommu_device' has no member named 'dev'
>> include/linux/intel-iommu.h:457: error: type defaults to 'int' in declaration of '__mptr'
cc1: warnings being treated as errors
>> include/linux/intel-iommu.h:457: error: initialization from incompatible pointer type
include/linux/intel-iommu.h:457: error: 'struct iommu_device' has no member named 'dev'

vim +457 include/linux/intel-iommu.h

451 if (!ecap_coherent(iommu->ecap))
452 clflush_cache_range(addr, size);
453 }
454
455 static inline struct intel_iommu *dev_to_intel_iommu(struct device *dev)
456 {
> 457 return container_of(dev, struct intel_iommu, iommu.dev);
458 }
459
460 extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev);

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