linux-kernel - Re: [Intel-gfx] [PATCH v2] vfio: fix potential deadlock on vfio group lock

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Message-ID: <202301131027.4WIXy01q-lkp@intel.com>
Date:   Fri, 13 Jan 2023 10:12:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Matthew Rosato <mjrosato@...ux.ibm.com>,
        alex.williamson@...hat.com, pbonzini@...hat.com
Cc:     oe-kbuild-all@...ts.linux.dev, akrowiak@...ux.ibm.com,
        jjherne@...ux.ibm.com, farman@...ux.ibm.com,
        imbrenda@...ux.ibm.com, frankja@...ux.ibm.com,
        pmorel@...ux.ibm.com, david@...hat.com, seanjc@...gle.com,
        intel-gfx@...ts.freedesktop.org, cohuck@...hat.com,
        linux-kernel@...r.kernel.org, pasic@...ux.ibm.com, jgg@...dia.com,
        kvm@...r.kernel.org, linux-s390@...r.kernel.org,
        borntraeger@...ux.ibm.com, intel-gvt-dev@...ts.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH v2] vfio: fix potential deadlock on vfio
 group lock

Hi Matthew,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-tip/drm-tip]

url:    https://github.com/intel-lab-lkp/linux/commits/Matthew-Rosato/vfio-fix-potential-deadlock-on-vfio-group-lock/20230113-044050
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
patch link:    https://lore.kernel.org/r/20230112203844.41179-1-mjrosato%40linux.ibm.com
patch subject: [Intel-gfx] [PATCH v2] vfio: fix potential deadlock on vfio group lock
config: arc-randconfig-r043-20230112
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/efc312b2bb2125d4a447b166e323bf182e198901
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Matthew-Rosato/vfio-fix-potential-deadlock-on-vfio-group-lock/20230113-044050
        git checkout efc312b2bb2125d4a447b166e323bf182e198901
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/vfio/

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

All errors (new ones prefixed by >>):

   In file included from include/linux/kvm_host.h:40,
                    from drivers/vfio/vfio_main.c:19:
>> include/uapi/linux/kvm.h:15:10: fatal error: asm/kvm.h: No such file or directory
      15 | #include <asm/kvm.h>
         |          ^~~~~~~~~~~
   compilation terminated.


vim +15 include/uapi/linux/kvm.h

6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10   4  
6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10   5  /*
6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10   6   * Userspace interface for /dev/kvm - kernel based virtual machine
6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10   7   *
dea8caee7b6971a include/linux/kvm.h      Rusty Russell          2007-07-17   8   * Note: you must update KVM_API_VERSION if you change this interface.
6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10   9   */
6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10  10  
fb1070d18edb37d include/uapi/linux/kvm.h Joe Richey             2021-05-21  11  #include <linux/const.h>
00bfddaf7f68a65 include/linux/kvm.h      Jaswinder Singh Rajput 2009-01-15  12  #include <linux/types.h>
97646202bc3f190 include/linux/kvm.h      Christian Borntraeger  2008-03-12  13  #include <linux/compiler.h>
6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10  14  #include <linux/ioctl.h>
f6a40e3bdf5fe0a include/linux/kvm.h      Jerone Young           2007-11-19 @15  #include <asm/kvm.h>
6aa8b732ca01c3d include/linux/kvm.h      Avi Kivity             2006-12-10  16  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

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