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SubjectRe: [PATCH v2 08/17] libnvdimm: introduce nvdimm_flush() and nvdimm_has_flush()
Hi,

[auto build test ERROR on linux-nvdimm/libnvdimm-for-next]
[also build test ERROR on next-20160708]
[cannot apply to v4.7-rc6]
[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/replace-pcommit-with-ADR-or-directed-flushing/20160710-113558
base: https://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git libnvdimm-for-next
config: i386-randconfig-r0-201628 (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:887:4: error: implicit declaration of function 'writeq' [-Werror=implicit-function-declaration]
writeq(1, ndrd->flush_wpq[i][0]);
^~~~~~
cc1: some warnings being treated as errors

vim +/writeq +887 drivers/nvdimm/region_devs.c

881 * writes to avoid the cache via arch_memcpy_to_pmem(). The
882 * final wmb() ensures ordering for the NVDIMM flush write.
883 */
884 wmb();
885 for (i = 0; i < nd_region->ndr_mappings; i++)
886 if (ndrd->flush_wpq[i][0])
> 887 writeq(1, ndrd->flush_wpq[i][0]);
888 wmb();
889 }
890 EXPORT_SYMBOL_GPL(nvdimm_flush);

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