Re: [PATCH 5/9] mm: remove CONFIG_DISCONTIGMEM

[kernel test robot <lkp@intel.com>]

[-- Attachment #1: Type: text/plain, Size: 2464 bytes --]

Hi Mike,

I love your patch! Yet something to improve:

[auto build test ERROR on c4681547bcce777daf576925a966ffa824edd09d]

url:    https://github.com/0day-ci/linux/commits/Mike-Rapoport/Remove-DISCINTIGMEM-memory-model/20210602-185609
base:   c4681547bcce777daf576925a966ffa824edd09d
config: arm-neponset_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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/0day-ci/linux/commit/1800f1972bb2ae7c788d1f0f1a8a301cf3f3f86c
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Mike-Rapoport/Remove-DISCINTIGMEM-memory-model/20210602-185609
        git checkout 1800f1972bb2ae7c788d1f0f1a8a301cf3f3f86c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arch/arm/mm/init.c:97:13: warning: no previous prototype for 'setup_dma_zone' [-Wmissing-prototypes]
      97 | void __init setup_dma_zone(const struct machine_desc *mdesc)
         |             ^~~~~~~~~~~~~~
   arch/arm/mm/init.c: In function 'mem_init':
>> arch/arm/mm/init.c:311:39: error: 'mem_map' undeclared (first use in this function); did you mean 'memunmap'?
     311 |  set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
         |                                       ^~~~~~~
         |                                       memunmap
   arch/arm/mm/init.c:311:39: note: each undeclared identifier is reported only once for each function it appears in


vim +311 arch/arm/mm/init.c

ad3c7b18c5b362 Christoph Hellwig 2019-07-23  310  
b3ba41f28f7fe1 Santosh Shilimkar 2013-11-23 @311  	set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
^1da177e4c3f41 Linus Torvalds    2005-04-16  312  
^1da177e4c3f41 Linus Torvalds    2005-04-16  313  	/* this will put all unused low memory onto the freelists */
c6ffc5ca8fb311 Mike Rapoport     2018-10-30  314  	memblock_free_all();
^1da177e4c3f41 Linus Torvalds    2005-04-16  315  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 17483 bytes --]