linux-kernel - Re: [PATCH v2 1/3] mm: memory-failure: update ttu flag inside unmap_poisoned

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202501171300.SYkofFQ6-lkp@intel.com>
Date: Fri, 17 Jan 2025 11:57:48 +0800
From: kernel test robot <lkp@...el.com>
To: Wupeng Ma <mawupeng1@...wei.com>, akpm@...ux-foundation.org,
	david@...hat.com, osalvador@...e.de, nao.horiguchi@...il.com,
	linmiaohe@...wei.com, mhocko@...e.com
Cc: oe-kbuild-all@...ts.linux.dev, mawupeng1@...wei.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/3] mm: memory-failure: update ttu flag inside
 unmap_poisoned_folio

Hi Wupeng,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Wupeng-Ma/mm-memory-failure-update-ttu-flag-inside-unmap_poisoned_folio/20250116-142614
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250116061657.227027-2-mawupeng1%40huawei.com
patch subject: [PATCH v2 1/3] mm: memory-failure: update ttu flag inside unmap_poisoned_folio
config: s390-randconfig-001-20250117 (https://download.01.org/0day-ci/archive/20250117/202501171300.SYkofFQ6-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250117/202501171300.SYkofFQ6-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501171300.SYkofFQ6-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from mm/page_isolation.c:13:
>> mm/internal.h:1142:1: error: expected identifier or '(' before '{' token
    1142 | {
         | ^
>> mm/internal.h:1141:19: warning: 'unmap_poisoned_folio' declared 'static' but never defined [-Wunused-function]
    1141 | static inline int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill);
         |                   ^~~~~~~~~~~~~~~~~~~~
--
   In file included from mm/damon/paddr.c:19:
>> mm/damon/../internal.h:1142:1: error: expected identifier or '(' before '{' token
    1142 | {
         | ^
>> mm/damon/../internal.h:1141:19: warning: 'unmap_poisoned_folio' declared 'static' but never defined [-Wunused-function]
    1141 | static inline int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill);
         |                   ^~~~~~~~~~~~~~~~~~~~


vim +1142 mm/internal.h

31d3d3484f9bd2 Wu Fengguang            2009-12-16  1121  
7c116f2b0dbac4 Wu Fengguang            2009-12-16  1122  extern u32 hwpoison_filter_dev_major;
7c116f2b0dbac4 Wu Fengguang            2009-12-16  1123  extern u32 hwpoison_filter_dev_minor;
478c5ffc0b5052 Wu Fengguang            2009-12-16  1124  extern u64 hwpoison_filter_flags_mask;
478c5ffc0b5052 Wu Fengguang            2009-12-16  1125  extern u64 hwpoison_filter_flags_value;
4fd466eb46a6a9 Andi Kleen              2009-12-16  1126  extern u64 hwpoison_filter_memcg;
1bfe5febe34d2b Haicheng Li             2009-12-16  1127  extern u32 hwpoison_filter_enable;
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1128  #define MAGIC_HWPOISON	0x48575053U	/* HWPS */
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1129  void SetPageHWPoisonTakenOff(struct page *page);
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1130  void ClearPageHWPoisonTakenOff(struct page *page);
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1131  bool take_page_off_buddy(struct page *page);
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1132  bool put_page_back_buddy(struct page *page);
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1133  struct task_struct *task_early_kill(struct task_struct *tsk, int force_early);
68158bfa3dbd4a Matthew Wilcox (Oracle  2024-10-05  1134) void add_to_kill_ksm(struct task_struct *tsk, const struct page *p,
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1135  		     struct vm_area_struct *vma, struct list_head *to_kill,
3a78f77fd1fb82 Miaohe Lin              2024-06-12  1136  		     unsigned long ksm_addr);
68158bfa3dbd4a Matthew Wilcox (Oracle  2024-10-05  1137) unsigned long page_mapped_in_vma(const struct page *page,
68158bfa3dbd4a Matthew Wilcox (Oracle  2024-10-05  1138) 		struct vm_area_struct *vma);
eb36c5873b96e8 Al Viro                 2012-05-30  1139  
16038c4fffd802 Kefeng Wang             2024-08-27  1140  #else
2b5df10a15dc74 Ma Wupeng               2025-01-16 @1141  static inline int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill);
16038c4fffd802 Kefeng Wang             2024-08-27 @1142  {
2b5df10a15dc74 Ma Wupeng               2025-01-16  1143  	return -EBUSY;
16038c4fffd802 Kefeng Wang             2024-08-27  1144  }
16038c4fffd802 Kefeng Wang             2024-08-27  1145  #endif
16038c4fffd802 Kefeng Wang             2024-08-27  1146  

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