linux-kernel - Re: [PATCH 3/7] vfio: add sdmdev support

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Message-ID: <20180904153232.GK17047@intel.com>
Date:   Tue, 4 Sep 2018 23:32:32 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Kenneth Lee <nek.in.cn@...il.com>
Cc:     kbuild-all@...org, Jonathan Corbet <corbet@....net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Joerg Roedel <joro@...tes.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kenneth Lee <liguozhu@...ilicon.com>,
        Hao Fang <fanghao11@...wei.com>,
        Zhou Wang <wangzhou1@...ilicon.com>,
        Zaibo Xu <xuzaibo@...wei.com>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, iommu@...ts.linux-foundation.org,
        kvm@...r.kernel.org, linux-accelerators@...ts.ozlabs.org,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Sanjay Kumar <sanjay.k.kumar@...el.com>, linuxarm@...wei.com
Subject: Re: [PATCH 3/7] vfio: add sdmdev support

Hi Kenneth,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on cryptodev/master]
[also build test WARNING on v4.19-rc2 next-20180831]
[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/Kenneth-Lee/A-General-Accelerator-Framework-WarpDrive/20180903-162733
base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
config: i386-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 
:::::: branch date: 2 hours ago
:::::: commit date: 2 hours ago

All warnings (new ones prefixed by >>):

   drivers/vfio/sdmdev/vfio_sdmdev.c: In function 'vfio_sdmdev_mdev_remove':
>> drivers/vfio/sdmdev/vfio_sdmdev.c:178:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if (sdmdev->ops->put_queue);
     ^~
   drivers/vfio/sdmdev/vfio_sdmdev.c:179:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
      sdmdev->ops->put_queue(q);
      ^~~~~~

# https://github.com/0day-ci/linux/commit/1e47d5e608652b4a2c813dbeaf5aa6811f6ceaf7
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout 1e47d5e608652b4a2c813dbeaf5aa6811f6ceaf7
vim +/if +178 drivers/vfio/sdmdev/vfio_sdmdev.c

1e47d5e6 Kenneth Lee 2018-09-03  168  
1e47d5e6 Kenneth Lee 2018-09-03  169  static int vfio_sdmdev_mdev_remove(struct mdev_device *mdev)
1e47d5e6 Kenneth Lee 2018-09-03  170  {
1e47d5e6 Kenneth Lee 2018-09-03  171  	struct vfio_sdmdev_queue *q =
1e47d5e6 Kenneth Lee 2018-09-03  172  		(struct vfio_sdmdev_queue *)mdev_get_drvdata(mdev);
1e47d5e6 Kenneth Lee 2018-09-03  173  	struct vfio_sdmdev *sdmdev = q->sdmdev;
1e47d5e6 Kenneth Lee 2018-09-03  174  	struct device *pdev = mdev_parent_dev(mdev);
1e47d5e6 Kenneth Lee 2018-09-03  175  
1e47d5e6 Kenneth Lee 2018-09-03  176  	put_device(pdev);
1e47d5e6 Kenneth Lee 2018-09-03  177  
1e47d5e6 Kenneth Lee 2018-09-03 @178  	if (sdmdev->ops->put_queue);
1e47d5e6 Kenneth Lee 2018-09-03  179  		sdmdev->ops->put_queue(q);
1e47d5e6 Kenneth Lee 2018-09-03  180  
1e47d5e6 Kenneth Lee 2018-09-03  181  	return 0;
1e47d5e6 Kenneth Lee 2018-09-03  182  }
1e47d5e6 Kenneth Lee 2018-09-03  183  

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