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Re: xfs_iomap.c:undefined reference to `put_dax'

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On Mon, May 15, 2017 at 6:25 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Sun, May 14, 2017 at 1:21 AM, kbuild test robot
> <fengguang.wu@intel.com> wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head:   cd636458904a04de2349c728323c5d2af1203bdf
>> commit: ef51042472f55b325fd7f2b26a2e29fd89757234 block, dax: move "select DAX" from BLOCK to FS_DAX
>> date:   5 days ago
>> config: ia64-bigsur_defconfig (attached as .config)
>> compiler: ia64-linux-gcc (GCC) 6.2.0
>> reproduce:
>>         wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>         chmod +x ~/bin/make.cross
>>         git checkout ef51042472f55b325fd7f2b26a2e29fd89757234
>>         # save the attached .config to linux build tree
>>         make.cross ARCH=ia64
>>
>> All errors (new ones prefixed by >>):
>>
>>    fs/built-in.o: In function `xfs_file_iomap_end':
>>>> xfs_iomap.c:(.text+0x2e3022): undefined reference to `put_dax'
>>    fs/built-in.o: In function `xfs_file_iomap_begin':
>>>> xfs_iomap.c:(.text+0x2e4502): undefined reference to `dax_get_by_host'
>
> This is caused by CONFIG_DAX now being allowed to be '=m' while used by
> a built-in file system. This only happens for XFS at the moment though, as the
> other file systems check for CONFIG_FS_DAX already.
>
> I have a patch that I'm testing at the moment.
>

Hi Arnd,

I have this patch out for testing.

https://patchwork.kernel.org/patch/9725515/

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xfs_iomap.c:undefined reference to `put_dax' kbuild test robot <fengguang.wu@intel.com> - 2017-05-14 01:30 +0200
  Re: xfs_iomap.c:undefined reference to `put_dax' Arnd Bergmann <arnd@arndb.de> - 2017-05-15 15:30 +0200
    Re: xfs_iomap.c:undefined reference to `put_dax' Dan Williams <dan.j.williams@intel.com> - 2017-05-15 15:40 +0200
      Re: xfs_iomap.c:undefined reference to `put_dax' Arnd Bergmann <arnd@arndb.de> - 2017-05-15 16:00 +0200
        Re: xfs_iomap.c:undefined reference to `put_dax' Dan Williams <dan.j.williams@intel.com> - 2017-05-15 16:10 +0200
          Re: xfs_iomap.c:undefined reference to `put_dax' Arnd Bergmann <arnd@arndb.de> - 2017-05-15 16:30 +0200

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