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Re: [PATCH v1 03/11] mm: thp: add helpers related to thp/pmd migration

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Hi Naoya,

[auto build test ERROR on v4.5-rc6]
[also build test ERROR on next-20160303]
[cannot apply to tip/x86/core asm-generic/master]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Naoya-Horiguchi/mm-page-migration-enhancement-for-thp/20160303-154610
config: arm-at91_dt_defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   In file included from mm/vmscan.c:54:0:
   include/linux/swapops.h: In function 'swp_entry_to_pmd':
>> include/linux/swapops.h:217:2: error: empty scalar initializer
     pmd_t pmd = {};
     ^
   include/linux/swapops.h:217:2: error: (near initialization for 'pmd')

vim +217 include/linux/swapops.h

   211	{
   212		return swp_entry(0, 0);
   213	}
   214	
   215	static inline pmd_t swp_entry_to_pmd(swp_entry_t entry)
   216	{
 > 217		pmd_t pmd = {};
   218	
   219		return pmd;
   220	}

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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[PATCH v1 00/11] mm: page migration enhancement for thp Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
  [PATCH v1 07/11] mm: hwpoison: fix race between unpoisoning and freeing migrate source page Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
  [PATCH v1 11/11] mm: memory_hotplug: memory hotremove supports thp migration Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
    Re: [PATCH v1 11/11] mm: memory_hotplug: memory hotremove supports  thp migration Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 09:50 +0100
  [PATCH v1 10/11] mm: migrate: move_pages() supports thp migration Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
  [PATCH v1 09/11] mm: mempolicy: mbind and migrate_pages support thp migration Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
  [PATCH v1 03/11] mm: thp: add helpers related to thp/pmd migration Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
    Re: [PATCH v1 03/11] mm: thp: add helpers related to thp/pmd  migration kbuild test robot <lkp@intel.com> - 2016-03-03 10:30 +0100
    Re: [PATCH v1 03/11] mm: thp: add helpers related to thp/pmd  migration "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-03-03 11:50 +0100
      Re: [PATCH v1 03/11] mm: thp: add helpers related to thp/pmd  migration Naoya Horiguchi <nao.horiguchi@gmail.com> - 2016-03-03 17:30 +0100
  [PATCH v1 02/11] mm: thp: introduce CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
    Re: [PATCH v1 02/11] mm: thp: introduce  CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-03-03 11:30 +0100
  [PATCH v1 05/11] mm: thp: check pmd migration entry in common path Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100
    Re: [PATCH v1 05/11] mm: thp: check pmd migration entry in common  path "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-03-03 12:00 +0100
      Re: [PATCH v1 05/11] mm: thp: check pmd migration entry in common  path Naoya Horiguchi <nao.horiguchi@gmail.com> - 2016-03-03 17:30 +0100
  [PATCH v1 06/11] mm: soft-dirty: keep soft-dirty bits over thp migration Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-03-03 08:50 +0100

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