[mingo-tip:WIP.x86/cpu 17/17] make[4]: *** No rule to make target 'arch/x86/um/../lib/cmpxchg8b_emu.o', needed by 'arch/x86/um/built-in.a'.

[mingo-tip:WIP.x86/cpu 17/17] make[4]: *** No rule to make target 'arch/x86/um/../lib/cmpxchg8b_emu.o', needed by 'arch/x86/um/built-in.a'.

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git WIP.x86/cpu
head:   d110d59bdea172326dc4f88ee93ebde525cdeed2
commit: d110d59bdea172326dc4f88ee93ebde525cdeed2 [17/17] x86/atomics: Remove !CONFIG_X86_CX8 methods
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20250425/202504251840.deJRQYhQ-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250425/202504251840.deJRQYhQ-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504251840.deJRQYhQ-lkp@intel.com/

All errors (new ones prefixed by >>):

>> make[4]: *** No rule to make target 'arch/x86/um/../lib/cmpxchg8b_emu.o', needed by 'arch/x86/um/built-in.a'.
>> make[4]: *** No rule to make target 'arch/x86/um/../lib/atomic64_386_32.o', needed by 'arch/x86/um/built-in.a'.
   make[4]: Target 'arch/x86/um/' not remade because of errors.

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