Re: [PATCH v1 08/11] mm: hwpoison: soft offline supports thp migration

From: kbuild test robot
Date: Thu Mar 03 2016 - 03:07:32 EST


Hi Naoya,

[auto build test ERROR on v4.5-rc6]
[also build test ERROR on next-20160302]
[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: i386-randconfig-x013-201609 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

Note: the linux-review/Naoya-Horiguchi/mm-page-migration-enhancement-for-thp/20160303-154610 HEAD a0e4b096d1324d23aed454a230d4d31b99b92ae7 builds fine.
It only hurts bisectibility.

All errors (new ones prefixed by >>):

mm/memory-failure.c: In function 'new_page':
>> mm/memory-failure.c:1503:3: error: implicit declaration of function 'prep_transhuge_page' [-Werror=implicit-function-declaration]
prep_transhuge_page(thp);
^
cc1: some warnings being treated as errors

vim +/prep_transhuge_page +1503 mm/memory-failure.c

1497
1498 thp = alloc_pages_node(nid,
1499 (GFP_TRANSHUGE | __GFP_THISNODE) & ~__GFP_RECLAIM,
1500 HPAGE_PMD_ORDER);
1501 if (!thp)
1502 return NULL;
> 1503 prep_transhuge_page(thp);
1504 return thp;
1505 } else
1506 return __alloc_pages_node(nid, GFP_HIGHUSER_MOVABLE, 0);

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