Re: [rcu:dev.2020.06.05a 85/92] powerpc-linux-ld: kernel/smp.c:128: undefined reference to `__udivdi3'

[Paul E. McKenney]

On Tue, Jun 09, 2020 at 05:39:21AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.06.05a
> head:   c5432e18c8bfe9283bf5e0bc5e2460ae8f39a7ee
> commit: 3f8c62d29ead7c3213a4af7c433ec6fbf8457f37 [85/92] EXP kernel/smp: Provide CSD lock timeout diagnostics
> config: powerpc64-randconfig-c024-20200607 (attached as .config)
> compiler: powerpc-linux-gcc (GCC) 9.3.0
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@xxxxxxxxx>

Alleged fixes squashed into original with attribution, thank you!

						Thanx, Paul

> All errors (new ones prefixed by >>, old ones prefixed by <<):
> 
> powerpc-linux-ld: kernel/smp.o: in function `csd_lock_wait':
> kernel/smp.c:122: undefined reference to `__udivdi3'
> >> powerpc-linux-ld: kernel/smp.c:128: undefined reference to `__udivdi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__umoddi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__udivdi3'
> powerpc-linux-ld: kernel/smp.c:122: undefined reference to `__udivdi3'
> >> powerpc-linux-ld: kernel/smp.c:128: undefined reference to `__udivdi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__umoddi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__udivdi3'
> powerpc-linux-ld: kernel/smp.c:122: undefined reference to `__udivdi3'
> >> powerpc-linux-ld: kernel/smp.c:128: undefined reference to `__udivdi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__umoddi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__udivdi3'
> powerpc-linux-ld: kernel/smp.c:122: undefined reference to `__udivdi3'
> >> powerpc-linux-ld: kernel/smp.c:128: undefined reference to `__udivdi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__umoddi3'
> powerpc-linux-ld: kernel/smp.c:136: undefined reference to `__udivdi3'
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
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