linux-kernel - [kbusch:dma-prereg-v3-wip 5/6] arc-elf-ld: rsrc.c:undefined reference to `io_dma

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Message-ID: <202207222145.oh14nNlu-lkp@intel.com>
Date:   Fri, 22 Jul 2022 21:22:41 +0800
From:   kernel test robot <lkp@...el.com>
To:     Keith Busch <kbusch@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [kbusch:dma-prereg-v3-wip 5/6] arc-elf-ld: rsrc.c:undefined
 reference to `io_dma_unmap'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git dma-prereg-v3-wip
head:   4625fa7adf745334c0a2eb635121d587df797b29
commit: 1390adeaee356151aeb13383e6ee1ad1c5798816 [5/6] io_uring: add support for dma pre-mapping
config: arc-randconfig-s041-20220721 (https://download.01.org/0day-ci/archive/20220722/202207222145.oh14nNlu-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git/commit/?id=1390adeaee356151aeb13383e6ee1ad1c5798816
        git remote add kbusch https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git
        git fetch --no-tags kbusch dma-prereg-v3-wip
        git checkout 1390adeaee356151aeb13383e6ee1ad1c5798816
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash

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 >>):

   arc-elf-ld: arc-elf-ld: DWARF error: could not find abbrev number 1914737
   io_uring/rsrc.o: in function `io_buffer_unmap':
   rsrc.c:(.text+0x2a6): undefined reference to `io_dma_unmap'
>> arc-elf-ld: rsrc.c:(.text+0x2a6): undefined reference to `io_dma_unmap'

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp