Re: [PATCH kernel 1/2] mm: add the related functions to build the free page bitmap

[kbuild test robot]

Hi,

[auto build test ERROR on v4.6-rc4]
[also build test ERROR on next-20160419]
[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/Liang-Li/speed-up-live-migration-by-skipping-free-pages/20160419-224707
config: arm-allnoconfig (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 >>):

   mm/built-in.o: In function `get_free_pages':
>> :(.text+0x3db4): undefined reference to `drop_cache'

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

Attachment: .config.gz
Description: Binary data