Re: [PATCH V4 4/5] md/raid10: improve raid10 discard request

[Xiao Ni <xni@redhat.com>]

I downloaded the .config in my environment and use `make W=1 ARCH=i386` 
to build the kernel.
It fails.
drivers/md/raid10.o: In function `raid10_handle_discard':
/home/xni/codes/md/drivers/md/raid10.c:1644: undefined reference to 
`__umoddi3'
/home/xni/codes/md/drivers/md/raid10.c:1648: undefined reference to 
`__umoddi3'
make: *** [Makefile:1167: vmlinux] Error 1

It's my first time to see these errors. I'll try to fix the error and 
send the patch again.

Regards
Xiao

On 08/24/2020 11:12 PM, Xiao Ni wrote:
> Hi all
>
> I can build successfully based on the latest upstream version
>
> [xni@xiao md]$ git branch
>   master
> * md-next
> [xni@xiao md]$ git pull
> Already up-to-date.
>
> Makefile:
> VERSION = 5
> PATCHLEVEL = 9
> SUBLEVEL = 0
> EXTRAVERSION = -rc1
>
> Regards
> Xiao
>
> On 08/24/2020 09:31 PM, kernel test robot wrote:
>> Hi Xiao,
>>
>> Thank you for the patch! Yet something to improve:
>>
>> [auto build test ERROR on song-md/md-next]
>> [also build test ERROR on v5.9-rc2 next-20200824]
>> [cannot apply to md/for-next]
>> [If your patch is applied to the wrong git tree, kindly drop us a note.
>> And when submitting patch, we suggest to use '--base' as documented in
>> https://git-scm.com/docs/git-format-patch]
>>
>> url: 
>> https://github.com/0day-ci/linux/commits/Xiao-Ni/md-raid10-move-codes-related-with-submitting-discard-bio-into-one-function/20200824-131217
>> base: git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git md-next
>> config: i386-randconfig-a015-20200824 (attached as .config)
>> compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
>> reproduce (this is a W=1 build):
>>          # save the attached .config to linux build tree
>>          make W=1 ARCH=i386
>>
>> If you fix the issue, kindly add following tag as appropriate
>> Reported-by: kernel test robot <lkp@intel.com>
>>
>> All errors (new ones prefixed by >>):
>>
>>     ld: drivers/md/raid10.o: in function `raid10_handle_discard':
>>     drivers/md/raid10.c:1624: undefined reference to `__umoddi3'
>>>> ld: drivers/md/raid10.c:1628: undefined reference to `__umoddi3'
>> ---
>> 0-DAY CI Kernel Test Service, Intel Corporation
>> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>