linux-kernel - Re: [PATCH v2 2/4] iommu: Add I/O ASID allocator

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Message-ID: <201909220924.WjTDOPBZ%lkp@intel.com>
Date:   Sun, 22 Sep 2019 09:45:30 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Jacob Pan <jacob.jun.pan@...ux.intel.com>
Cc:     kbuild-all@...org, iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>,
        Yi Liu <yi.l.liu@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Christoph Hellwig <hch@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Eric Auger <eric.auger@...hat.com>,
        Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: Re: [PATCH v2 2/4] iommu: Add I/O ASID allocator

Hi Jacob,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3 next-20190920]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Jacob-Pan/User-API-for-nested-shared-virtual-address-SVA/20190922-080736
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=ia64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

Note: the linux-review/Jacob-Pan/User-API-for-nested-shared-virtual-address-SVA/20190922-080736 HEAD 4ca1ca48104795307d26d3ef975d85991f86b5fa builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   In file included from <command-line>:0:0:
   include/linux/ioasid.h: In function 'ioasid_set_data':
>> include/linux/ioasid.h:43:10: error: 'ENODEV' undeclared (first use in this function)
     return -ENODEV;
             ^~~~~~
   include/linux/ioasid.h:43:10: note: each undeclared identifier is reported only once for each function it appears in

vim +/ENODEV +43 include/linux/ioasid.h

    40	
    41	static inline int ioasid_set_data(ioasid_t ioasid, void *data)
    42	{
  > 43		return -ENODEV;
    44	}
    45	

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