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Subjectdrivers/edac/skx_edac.c:399: undefined reference to `nfit_get_smbios_id'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 427fbe89261d8f11cd20b5a4ba94e977061f69d6
commit: 58ca9ac1463d07d24b9fa8befe065192abca6f76 EDAC, skx_edac: Detect non-volatile DIMMs
date: 8 weeks ago
config: x86_64-randconfig-v0-05130337 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
git checkout 58ca9ac1463d07d24b9fa8befe065192abca6f76
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

drivers/edac/skx_edac.o: In function `get_nvdimm_info':
>> drivers/edac/skx_edac.c:399: undefined reference to `nfit_get_smbios_id'

vim +399 drivers/edac/skx_edac.c

387
388 static int get_nvdimm_info(struct dimm_info *dimm, struct skx_imc *imc,
389 int chan, int dimmno)
390 {
391 int smbios_handle;
392 u32 dev_handle;
393 u16 flags;
394 u64 size = 0;
395
396 dev_handle = ACPI_NFIT_BUILD_DEVICE_HANDLE(dimmno, chan, imc->lmc,
397 imc->src_id, 0);
398
> 399 smbios_handle = nfit_get_smbios_id(dev_handle, &flags);
400 if (smbios_handle == -EOPNOTSUPP) {
401 pr_warn_once(EDAC_MOD_STR ": Can't find size of NVDIMM. Try enabling CONFIG_ACPI_NFIT\n");
402 goto unknown_size;
403 }
404
405 if (smbios_handle < 0) {
406 skx_printk(KERN_ERR, "Can't find handle for NVDIMM ADR=%x\n", dev_handle);
407 goto unknown_size;
408 }
409
410 if (flags & ACPI_NFIT_MEM_MAP_FAILED) {
411 skx_printk(KERN_ERR, "NVDIMM ADR=%x is not mapped\n", dev_handle);
412 goto unknown_size;
413 }
414
415 size = dmi_memdev_size(smbios_handle);
416 if (size == ~0ull)
417 skx_printk(KERN_ERR, "Can't find size for NVDIMM ADR=%x/SMBIOS=%x\n",
418 dev_handle, smbios_handle);
419
420 unknown_size:
421 dimm->nr_pages = size >> PAGE_SHIFT;
422 dimm->grain = 32;
423 dimm->dtype = DEV_UNKNOWN;
424 dimm->mtype = MEM_NVDIMM;
425 dimm->edac_mode = EDAC_SECDED; /* likely better than this */
426
427 edac_dbg(0, "mc#%d: channel %d, dimm %d, %llu Mb (%u pages)\n",
428 imc->mc, chan, dimmno, size >> 20, dimm->nr_pages);
429
430 snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u",
431 imc->src_id, imc->lmc, chan, dimmno);
432
433 return (size == 0 || size == ~0ull) ? 0 : 1;
434 }
435

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