linux-kernel - Re: [PATCH 3/7] md: support to align bio to limits

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Message-ID: <202511230429.aSwW3knO-lkp@intel.com>
Date: Sun, 23 Nov 2025 05:20:48 +0800
From: kernel test robot <lkp@...el.com>
To: Yu Kuai <yukuai@...as.com>, song@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-raid@...r.kernel.org,
	linux-kernel@...r.kernel.org, linan122@...wei.com, xni@...hat.com
Subject: Re: [PATCH 3/7] md: support to align bio to limits

Hi Yu,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.18-rc6 next-20251121]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Yu-Kuai/md-raid5-use-mempool-to-allocate-stripe_request_ctx/20251121-131818
base:   linus/master
patch link:    https://lore.kernel.org/r/20251121051406.1316884-5-yukuai%40fnnas.com
patch subject: [PATCH 3/7] md: support to align bio to limits
config: powerpc-randconfig-002-20251123 (https://download.01.org/0day-ci/archive/20251123/202511230429.aSwW3knO-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251123/202511230429.aSwW3knO-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511230429.aSwW3knO-lkp@intel.com/

All errors (new ones prefixed by >>):

   powerpc-linux-ld: drivers/md/md.o: in function `md_submit_bio':
>> md.c:(.text+0xf8c4): undefined reference to `__udivdi3'
>> powerpc-linux-ld: md.c:(.text+0xf914): undefined reference to `__umoddi3'

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki