Hi,

[auto build test ERROR on v4.7-rc1]
[also build test ERROR on next-20160603]
[cannot apply to linux-nvdimm/libnvdimm-for-next tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]

url:    
https://github.com/0day-ci/linux/commits/Dan-Williams/deprecate-pcommit/20160605-045935
config: i386-randconfig-s1-201623 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/nvdimm/region_devs.c: In function 'nvdimm_flush':
>> drivers/nvdimm/region_devs.c:826:4: error: implicit declaration of function 
>> 'writeq' [-Werror=implicit-function-declaration]
       writeq(1, ndd->flush_wpq[0]);
       ^~~~~~
   cc1: some warnings being treated as errors

vim +/writeq +826 drivers/nvdimm/region_devs.c

   820                  /*
   821                   * Note, nvdimm_drvdata guaranteed to be live since we
   822                   * arrange for all associated regions to be disabled
   823                   * before the dimm is disabled.
   824                   */
   825                  if (ndd->flush_wpq[0])
 > 826                          writeq(1, ndd->flush_wpq[0]);
   827          }
   828          wmb();
   829  }

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

Attachment: .config.gz
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