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Date:   Sun, 11 Nov 2018 06:44:51 +0800
From:   kbuild test robot <lkp@intel.com>
To:     Alex Williamson <alex.williamson@redhat.com>
Cc:     kbuild-all@01.org, alex.williamson@redhat.com, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org, christian.ehrhardt@canonical.com
Subject: Re: [PATCH] vfio/pci: Parallelize device open and release
Message-ID: <201811110624.k0DEwdIm%fengguang.wu@intel.com>
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Hi Alex,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vfio/next]
[also build test WARNING on v4.20-rc1 next-20181109]
[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/Alex-Williamson/vfio-pci-Parallelize-device-open-and-release/20181111-025016
base:   https://github.com/awilliam/linux-vfio.git next


coccinelle warnings: (new ones prefixed by >>)

>> drivers/vfio/pci/vfio_pci.c:1396:8-14: WARNING: PTR_ERR_OR_ZERO can be used

Please review and possibly fold the followup patch.

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