linux-kernel - Re: drivers/edac/skx_edac.c:399: undefined reference to `nfit_get_smbios

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Date:   Mon, 14 May 2018 10:05:30 +0200
From:   Jean Delvare <jdelvare@...e.de>
To:     kbuild test robot <lkp@...el.com>
Cc:     Tony Luck <tony.luck@...el.com>, kbuild-all@...org,
        linux-kernel@...r.kernel.org, Borislav Petkov <bp@...e.de>
Subject: Re: drivers/edac/skx_edac.c:399: undefined reference to
 `nfit_get_smbios_id'

On Sun, 13 May 2018 04:51:21 +0800, kbuild test robot wrote:
> 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'

This is caused by the following combination of options:

CONFIG_ACPI_NFIT=m
CONFIG_EDAC_SKX=y

Built-in code (skx_edac) can't reference a function from a module
(nfit).

I'll send a candidate fix shortly.

-- 
Jean Delvare
SUSE L3 Support