linux-kernel - Re: [PATCH v4 2/2] vdpasim: support doorbell mapping

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Date:   Tue, 28 Feb 2023 00:07:36 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Longpeng(Mike)" <longpeng2@...wei.com>, mst@...hat.com,
        jasowang@...hat.com
Cc:     oe-kbuild-all@...ts.linux.dev, stefanha@...hat.com,
        sgarzare@...hat.com, arei.gonglei@...wei.com, yechuan@...wei.com,
        huangzhichao@...wei.com, virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, eperezma@...hat.com,
        Longpeng <longpeng2@...wei.com>
Subject: Re: [PATCH v4 2/2] vdpasim: support doorbell mapping

Hi Longpeng(Mike),

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v6.2]
[cannot apply to mst-vhost/linux-next linus/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Longpeng-Mike/vdpa-support-specify-the-pgprot-of-vq-notification-area/20230227-172516
patch link:    https://lore.kernel.org/r/20230227091857.2406-3-longpeng2%40huawei.com
patch subject: [PATCH v4 2/2] vdpasim: support doorbell mapping
config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20230227/202302272338.vXR8d1Bb-lkp@intel.com/config)
compiler: arm-linux-gnueabi-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/a472c7ad92f68b5b596fd68e1936b2d47fe2ea0b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Longpeng-Mike/vdpa-support-specify-the-pgprot-of-vq-notification-area/20230227-172516
        git checkout a472c7ad92f68b5b596fd68e1936b2d47fe2ea0b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302272338.vXR8d1Bb-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__bad_xchg" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined!

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