Re: [PATCH 7/8] zsmalloc: replace per zpage lock with pool->migrate_lock

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

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Hi Minchan,

I love your patch! Yet something to improve:

[auto build test ERROR on v5.15]
[cannot apply to hnaz-mm/master next-20211111]
[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]

url:    https://github.com/0day-ci/linux/commits/Minchan-Kim/zsmalloc-remove-bit_spin_lock/20211111-025648
base:   DEBUG invalid remote for branch v5.15 8bb7eca972ad531c9b149c0a51ab43a417385813
config: xtensa-buildonly-randconfig-r004-20211111 (attached as .config)
compiler: xtensa-linux-gcc (GCC) 11.2.0
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/f1a88e64864de6af4e2a560bcf57a8b5f9737404
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Minchan-Kim/zsmalloc-remove-bit_spin_lock/20211111-025648
        git checkout f1a88e64864de6af4e2a560bcf57a8b5f9737404
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=xtensa 

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 >>):

   mm/zsmalloc.c: In function 'migrate_write_lock_nested':
>> mm/zsmalloc.c:1772:9: error: implicit declaration of function 'write_lock_nested'; did you mean 'inode_lock_nested'? [-Werror=implicit-function-declaration]
    1772 |         write_lock_nested(&zspage->lock, SINGLE_DEPTH_NESTING);
         |         ^~~~~~~~~~~~~~~~~
         |         inode_lock_nested
   cc1: some warnings being treated as errors


vim +1772 mm/zsmalloc.c

  1769	
  1770	static void migrate_write_lock_nested(struct zspage *zspage)
  1771	{
> 1772		write_lock_nested(&zspage->lock, SINGLE_DEPTH_NESTING);
  1773	}
  1774	

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

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