[linux-next:master 2796/2998] drivers/nvdimm/e820.c:24:12: error: implicit declaration of function 'phys_to_target_node'

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   3a00d3dfd4b68b208ecd5405e676d06c8ad6bb63
commit: c36f93c29a94b01da6c400033a0cf6ec2d394579 [2796/2998] mm/memory_hotplug: introduce default phys_to_target_node() implementation
config: x86_64-randconfig-a013-20200824 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        git checkout c36f93c29a94b01da6c400033a0cf6ec2d394579
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

>> arch/x86/mm/numa.c:907:5: warning: no previous prototype for 'phys_to_target_node' [-Wmissing-prototypes]
     907 | int phys_to_target_node(phys_addr_t start)
         |     ^~~~~~~~~~~~~~~~~~~
   arch/x86/mm/numa.c:921:5: warning: no previous prototype for 'memory_add_physaddr_to_nid' [-Wmissing-prototypes]
     921 | int memory_add_physaddr_to_nid(u64 start)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
--
   drivers/nvdimm/e820.c: In function 'e820_register_one':
>> drivers/nvdimm/e820.c:24:12: error: implicit declaration of function 'phys_to_target_node' [-Werror=implicit-function-declaration]
      24 |  int nid = phys_to_target_node(res->start);
         |            ^~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=c36f93c29a94b01da6c400033a0cf6ec2d394579
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout c36f93c29a94b01da6c400033a0cf6ec2d394579
vim +/phys_to_target_node +24 drivers/nvdimm/e820.c

7a67832c7e44c2 Dan Williams 2015-08-19  19  
d76401ade0bb6a Dan Williams 2018-06-02  20  static int e820_register_one(struct resource *res, void *data)
d76401ade0bb6a Dan Williams 2018-06-02  21  {
d76401ade0bb6a Dan Williams 2018-06-02  22  	struct nd_region_desc ndr_desc;
d76401ade0bb6a Dan Williams 2018-06-02  23  	struct nvdimm_bus *nvdimm_bus = data;
7b27a8622f8027 Dan Williams 2020-02-16 @24  	int nid = phys_to_target_node(res->start);
d76401ade0bb6a Dan Williams 2018-06-02  25  
d76401ade0bb6a Dan Williams 2018-06-02  26  	memset(&ndr_desc, 0, sizeof(ndr_desc));
d76401ade0bb6a Dan Williams 2018-06-02  27  	ndr_desc.res = res;
7b27a8622f8027 Dan Williams 2020-02-16  28  	ndr_desc.numa_node = numa_map_to_online_node(nid);
7b27a8622f8027 Dan Williams 2020-02-16  29  	ndr_desc.target_node = nid;
d76401ade0bb6a Dan Williams 2018-06-02  30  	set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags);
d76401ade0bb6a Dan Williams 2018-06-02  31  	if (!nvdimm_pmem_region_create(nvdimm_bus, &ndr_desc))
d76401ade0bb6a Dan Williams 2018-06-02  32  		return -ENXIO;
d76401ade0bb6a Dan Williams 2018-06-02  33  	return 0;
d76401ade0bb6a Dan Williams 2018-06-02  34  }
d76401ade0bb6a Dan Williams 2018-06-02  35  

:::::: The code at line 24 was first introduced by commit
:::::: 7b27a8622f802761d5c6abd6c37b22312a35343c libnvdimm/e820: Retrieve and populate correct 'target_node' info

:::::: TO: Dan Williams <dan.j.williams@intel.com>
:::::: CC: Dan Williams <dan.j.williams@intel.com>

---
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