Re: [PATCH RESEND] mempolicy.h: Remove unnecessary header file inclusions with no test failure

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

Hi Junjie,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on brauner-vfs/vfs.all linus/master v6.13-rc2 next-20241211]
[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/Junjie-Fu/mempolicy-h-Remove-unnecessary-header-file-inclusions-with-no-test-failure/20241211-120550
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/tencent_C12D22B8989E0314FDE7073D6446186E3C09%40qq.com
patch subject: [PATCH RESEND] mempolicy.h: Remove unnecessary header file inclusions with no test failure
config: sparc64-randconfig-002-20241212 (https://download.01.org/0day-ci/archive/20241212/202412120820.hwzVRrjd-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241212/202412120820.hwzVRrjd-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412120820.hwzVRrjd-lkp@intel.com/

All errors (new ones prefixed by >>):

   mm/z3fold.c: In function 'free_z3fold_page':
>> mm/z3fold.c:353:17: error: implicit declaration of function 'lock_page'; did you mean 'alloc_page'? [-Wimplicit-function-declaration]
     353 |                 lock_page(page);
         |                 ^~~~~~~~~
         |                 alloc_page
>> mm/z3fold.c:355:17: error: implicit declaration of function 'unlock_page'; did you mean 'alloc_page'? [-Wimplicit-function-declaration]
     355 |                 unlock_page(page);
         |                 ^~~~~~~~~~~
         |                 alloc_page
   In file included from arch/sparc/include/asm/bug.h:25,
                    from include/linux/bug.h:5,
                    from include/linux/thread_info.h:13,
                    from arch/sparc/include/asm/current.h:15,
                    from include/linux/sched.h:12,
                    from mm/z3fold.c:27:
   mm/z3fold.c: In function 'z3fold_alloc':
>> mm/z3fold.c:1056:26: error: implicit declaration of function 'trylock_page'; did you mean 'try_get_page'? [-Wimplicit-function-declaration]
    1056 |                 WARN_ON(!trylock_page(page));
         |                          ^~~~~~~~~~~~
   include/asm-generic/bug.h:123:32: note: in definition of macro 'WARN_ON'
     123 |         int __ret_warn_on = !!(condition);                              \
         |                                ^~~~~~~~~


vim +353 mm/z3fold.c

9a001fc19cccde Vitaly Wool 2016-05-20  348  
9a001fc19cccde Vitaly Wool 2016-05-20  349  /* Resets the struct page fields and frees the page */
1f862989b04ade Vitaly Wool 2019-05-13  350  static void free_z3fold_page(struct page *page, bool headless)
9a001fc19cccde Vitaly Wool 2016-05-20  351  {
1f862989b04ade Vitaly Wool 2019-05-13  352  	if (!headless) {
1f862989b04ade Vitaly Wool 2019-05-13 @353  		lock_page(page);
1f862989b04ade Vitaly Wool 2019-05-13  354  		__ClearPageMovable(page);
1f862989b04ade Vitaly Wool 2019-05-13 @355  		unlock_page(page);
1f862989b04ade Vitaly Wool 2019-05-13  356  	}
5a27aa8220290b Vitaly Wool 2017-02-24  357  	__free_page(page);
5a27aa8220290b Vitaly Wool 2017-02-24  358  }
5a27aa8220290b Vitaly Wool 2017-02-24  359  

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