linux-kernel - Re: [PATCH 1/2] vfio: add mmap/munmap API for page hinting

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Message-ID: <202001110208.6GCxeDRv%lkp@intel.com>
Date:   Sat, 11 Jan 2020 02:10:50 +0800
From:   kbuild test robot <lkp@...el.com>
To:     weiqi <weiqi4@...wei.com>
Cc:     kbuild-all@...ts.01.org, alexander.h.duyck@...ux.intel.com,
        alex.williamson@...hat.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, pbonzini@...hat.com, x86@...nel.org,
        wei qi <weiqi4@...wei.com>
Subject: Re: [PATCH 1/2] vfio: add mmap/munmap API for page hinting

Hi weiqi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on kvm/linux-next]
[also build test WARNING on vfio/next vhost/linux-next v5.5-rc5 next-20200109]
[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/weiqi/page-hinting-add-passthrough-support/20200108-152941
base:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-129-g341daf20-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

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


sparse warnings: (new ones prefixed by >>)

>> drivers/vfio/vfio_iommu_type1.c:1275:5: sparse: sparse: symbol 'vfio_iommu_iova_to_phys' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation