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From: kernel test robot <lkp@intel.com>
To: Vincent Guittot <vincent.guittot@linaro.org>
Cc: oe-kbuild-all@lists.linux.dev, Peter Zijlstra <peterz@infradead.org>
Subject: [peterz-queue:sched/eevdf 4/10] kernel/sched/fair.c:711: undefined reference to `__udivdi3'
Date: Sat, 4 Mar 2023 00:41:24 +0800	[thread overview]
Message-ID: <202303040023.GGyvAAAo-lkp@intel.com> (raw)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/eevdf
head:   bc35f40661d8d25ce8cde6e26d5956237a3e61ae
commit: bc9954a8f79988472545aa668a0be0dc5a0cddf3 [4/10] sched/fair: Add latency_offset
config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20230304/202303040023.GGyvAAAo-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=bc9954a8f79988472545aa668a0be0dc5a0cddf3
        git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue sched/eevdf
        git checkout bc9954a8f79988472545aa668a0be0dc5a0cddf3
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303040023.GGyvAAAo-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: kernel/sched/fair.o: in function `calc_latency_offset':
>> kernel/sched/fair.c:711: undefined reference to `__udivdi3'


vim +711 kernel/sched/fair.c

   705	
   706	long calc_latency_offset(int prio)
   707	{
   708		u32 weight = sched_prio_to_weight[prio];
   709		u64 base = sysctl_sched_min_granularity;
   710	
 > 711		return (base << SCHED_FIXEDPOINT_SHIFT) / weight;
   712	}
   713	

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

                 reply	other threads:[~2023-03-03 16:42 UTC|newest]

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