linux-kernel - Re: [PATCH -next] memblock: unify memblock dump and debugfs show

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Date:   Fri, 26 May 2023 10:57:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        Mike Rapoport <rppt@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     oe-kbuild-all@...ts.linux.dev,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-kernel@...r.kernel.org, tsahu@...ux.ibm.com,
        anshuman.khandual@....com, ssawgyw@...il.com,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: Re: [PATCH -next] memblock: unify memblock dump and debugfs show

Hi Kefeng,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20230525]

url:    https://github.com/intel-lab-lkp/linux/commits/Kefeng-Wang/memblock-unify-memblock-dump-and-debugfs-show/20230525-194341
base:   next-20230525
patch link:    https://lore.kernel.org/r/20230525115856.124507-1-wangkefeng.wang%40huawei.com
patch subject: [PATCH -next] memblock: unify memblock dump and debugfs show
config: arc-defconfig
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        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/08ce8490dec830c059127709a3a692ac7368287e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kefeng-Wang/memblock-unify-memblock-dump-and-debugfs-show/20230525-194341
        git checkout 08ce8490dec830c059127709a3a692ac7368287e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross W=1 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>
| Closes: https://lore.kernel.org/oe-kbuild-all/202305261014.oCTIOnRv-lkp@intel.com/

All errors (new ones prefixed by >>):

   mm/memblock.c: In function 'memblock_dump.constprop':
>> mm/memblock.c:1910:27: error: 'flagname' causes a section type conflict with 'memblock'
    1910 | static const char * const flagname[] __initdata_memblock = {
         |                           ^~~~~~~~
   mm/memblock.c:115:17: note: 'memblock' was declared here
     115 | struct memblock memblock __initdata_memblock = {
         |                 ^~~~~~~~


vim +1910 mm/memblock.c

  1909	
> 1910	static const char * const flagname[] __initdata_memblock = {
  1911		[ilog2(MEMBLOCK_HOTPLUG)]		= "HOTPLUG",
  1912		[ilog2(MEMBLOCK_MIRROR)]		= "MIRROR",
  1913		[ilog2(MEMBLOCK_NOMAP)]			= "NOMAP",
  1914		[ilog2(MEMBLOCK_DRIVER_MANAGED)]	= "DRV_MNG",
  1915		[ilog2(MEMBLOCK_MAX_UNKNOWN)]		= "UNKNOWN",
  1916	};
  1917	

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

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