linux-kernel - mips64-linux-ld: div64.c:undefined reference to `_

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Message-ID: <202601140146.hMLODc6v-lkp@intel.com>
Date: Wed, 14 Jan 2026 01:59:24 +0800
From: kernel test robot <lkp@...el.com>
To: David Laight <david.laight.linux@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
 Andrew Morton <akpm@...ux-foundation.org>,
 Linux Memory Management List <linux-mm@...ck.org>,
 Nicolas Pitre <npitre@...libre.com>
Subject: mips64-linux-ld: div64.c:undefined reference to `__multi3'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b71e635feefc852405b14620a7fc58c4c80c0f73
commit: d10bb374c41e4c4dced04ae7d2fe2d782a5858a0 lib: mul_u64_u64_div_u64(): optimise the divide code
date:   8 weeks ago
config: mips-randconfig-r113-20260113 (https://download.01.org/0day-ci/archive/20260114/202601140146.hMLODc6v-lkp@intel.com/config)
compiler: mips64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260114/202601140146.hMLODc6v-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/202601140146.hMLODc6v-lkp@intel.com/

All errors (new ones prefixed by >>):

   mips64-linux-ld: lib/math/div64.o: in function `mul_u64_add_u64_div_u64':
   div64.c:(.text+0x84): undefined reference to `__multi3'
>> mips64-linux-ld: div64.c:(.text+0x11c): undefined reference to `__multi3'

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