Re: [PATCH 03/10] iommu: Introduce new 'struct iommu_device'

From: kbuild test robot <lkp@intel.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: kbuild-all@01.org, Will Deacon <will.deacon@arm.com>,
	Robin Murphy <robin.murphy@arm.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	David Woodhouse <dwmw2@infradead.org>,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	Joerg Roedel <jroedel@suse.de>
Subject: Re: [PATCH 03/10] iommu: Introduce new 'struct iommu_device'
Date: Sat, 4 Feb 2017 03:25:21 +0800	[thread overview]
Message-ID: <201702040328.eaqZ5tRV%fengguang.wu@intel.com> (raw)
In-Reply-To: <1486135068-23994-4-git-send-email-joro@8bytes.org>

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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:444:22: 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:1094:3: 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:1115:2: 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_register +1094 drivers/iommu/dmar.c

  1088				err = PTR_ERR(iommu->iommu_dev);
  1089				goto err_unmap;
  1090			}
  1091	
  1092			iommu->iommu.ops = &intel_iommu_ops;
  1093	
> 1094			err = iommu_device_register(&iommu->iommu);
  1095			if (err)
  1096				goto err_unmap;
  1097		}
  1098	
  1099		drhd->iommu = iommu;
  1100	
  1101		return 0;
  1102	
  1103	err_unmap:
  1104		unmap_iommu(iommu);
  1105	error_free_seq_id:
  1106		dmar_free_seq_id(iommu);
  1107	error:
  1108		kfree(iommu);
  1109		return err;
  1110	}
  1111	
  1112	static void free_iommu(struct intel_iommu *iommu)
  1113	{
  1114		iommu_device_destroy(iommu->iommu_dev);
> 1115		iommu_device_unregister(&iommu->iommu);
  1116	
  1117		if (iommu->irq) {
  1118			if (iommu->pr_irq) {

---
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